Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 206
Filter
1.
Odontol. Clín.-Cient ; 20(2): 7-13, abr.-maio 2021. tab
Article in Portuguese | LILACS, BBO | ID: biblio-1369084

ABSTRACT

A violência interpessoal tem se configurado como um grave problema social e de saúde pública, em que lesões na região bucomaxilofacial são importantes consequências. O objetivo desse estudo foi analisar o perfil das vítimas de violência interpessoal que tiveram lesões na região maxilofacial e foram atendidas no hospital da Restauração em Recife, Pernambuco-Brasil durante o ano de 2017. Foi realizada uma pesquisa retrospectiva e exploratória baseada nas informações contidas nos prontuários do hospital e em seguida foi utilizado o software Statistical Package for the Social Sciences (SPSS) para análise das medidas descritivas. No período de um ano foram encontrados 455 prontuários, de forma que 87,9% corresponderam ao sexo masculino e 12,1% ao feminino. Do total, 34,9% tinham idade entre 20-29 anos e 43,3% foram vítimas de força corporal/espancamento. O tipo de trauma mais frequente foi fratura dos ossos maxilofaciais (45,3%). Outrossim, o dia e horário mais comum de atendimento foi o domingo (23,1%) no período noturno (58,2%). Homens jovens com traumas dos ossos maxilofaciais foi o principal perfil encontrado no estudo, sendo necessário o fortalecimento de políticas públicas a fim de evitar o aumento de casos nessa população... (AU)


Interpersonal violence has been configured as a serious social and public health problem in which injuries on the maxillofacial region are important consequences. This study aimed to analyze the profile of interpersonal violence victims who had maxillofacial injuries and were treated at Hospital Da Restauração in Recife, Pernambuco-Brazil during 2017. A retrospective and exploratory research was conducted based on information from the medical records of the hospital and then the Statistical Package for the Social Sciences (SPSS) Software was used for descriptive measures analysis. In the period of one year, 455 medical records were found, in which 87,9% corresponded to male and 12,1% to female. Of the total, 34,9% were aged between 20-29 years old and 43,3% were victims of physical strength/beating. The most frequent type of trauma was fracture of the maxillofacial bones (45,3%). Otherwise, the most common day and time of treatment at the hospital was on Sundays (23,1%) and in the evening (58,2%). Young men with trauma on the maxillofacial bones was the main profile found in this study, requiring the strengthening of public policies to avoid the increase in cases in this population... (AU)


Subject(s)
Humans , Male , Female , Violence , Mandible/surgery , Maxillofacial Injuries , Wounds and Injuries , Medical Records , Public Health , Fractures, Bone , Facial Injuries , Maxilla/surgery
2.
Rev. Odontol. Araçatuba (Impr.) ; 42(1): 44-48, jan.-abr. 2021. ilus
Article in Portuguese | LILACS, BBO | ID: biblio-1252869

ABSTRACT

Diversas anomalias craniofaciais acometem os seres humanos, dentre estas podem ser citadas as fissuras labiopalatinas. Ocorrem devido à mal formações congênitas e comprometem o desenvolvimento orofacial e maxilo-mandibular, gerando complicações estéticas e funcionais. O momento para abordagem cirúrgica em pacientes com deformidade deste tipo é crucial para atingir o melhor resultado. Entretanto, muitos deles não procuram atendimento ou não tem acesso aos centros especializados. A pré-maxila em portadores de fissura labiopalatina transforame bilateral, não submetidos a tratamento cirúrgico na infância, é comumente protruída, impedindo o desenvolvimento e função adequada da musculatura perioral/ Ainda, pode causar dificuldades alimentares,de fonação e, principalmente, estético. O objetivo do presente trabalho é relatar o caso de uma paciente acompanhada no serviço de cirurgia bucomaxilofacial OSID/UFBA, portadora de fissura labiopalatina, submetida à remoção de pré-maxila em idade adulta. O fechamento da fenda palatina não foi possível devido a idade da paciente e o grau de desenvolvimento do palato, tendo indicado tratamento com uso de prótese obturadora. Considera-se que quanto mais precoce e associado a uma boa técnica cirúrgica forem realizadas as intervenções primárias, menores serão as sequelas. Consequentemente, os resultados estéticos e funcionais serão mais prováveis, sendo desnecessária a remoção cirúrgica da pre-maxila(AU)


Several craniofacial anomalies affect humans and, among these, it can be cited the cleft lip and palate. These occur due to congenital malformations and compromise the orofacial and maxillo-mandibular development, causing aesthetic and functional complications. The moment of the surgical approach in patients with this type of deformities is crucial to achieve the best outcome, however, many of them do not seek care or have no access to specialized centers. The premaxilla in carries of bilateral cleft lip and palate when they are not submitted to a surgical treatment in childhood, is commonly protruding, impeding the development and function of the perioral musculature, besides difficult feeding, phonation and mainly aesthetic. The aim of this article is to report the case of a patient accompained with the Bucomaxillofacial Surgery Service from OSID / UFBA, with cleft lip and palate, submitted to pre-maxilla removal, in adulthood. The cleft palate closure was not possible due to the age of the patient and degree of development of the palate, indicating treatment with obturator prosthesis. It is considered that, the sooner and associated with a good surgical technique, primary interventions are performed, the fewer the sequelae and consequently the aesthetic and functional results, where, in most cases, surgical removal of the premaxilla will be unnecessary(AU)


Subject(s)
Female , Adult , Cleft Lip , Cleft Palate , Craniofacial Abnormalities , Alveoloplasty , Maxilla/surgery
3.
Braz. dent. j ; 32(1): 34-41, Jan.-Feb. 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1180717

ABSTRACT

Abstract The objective of this study was to compare the biomechanical behavior of peri-implant bone tissue and prosthetic components in two modalities of treatment for posterior region of the maxilla, using short implants or standard-length implants associated with bone graft in the maxillary sinus. Four 3D models of a crown supported by an implant fixed in the posterior maxilla were constructed. The type of implant: short implant (S) or standard-length implant with the presence of sinus graft (L) and type of crown retention: cemented (C) or screwed (S) were the study factors. The models were divided into SC- cemented crown on a short implant; SS- screwed crown on the short implant; LC- cemented crown on a standard-length implant after bone graft in the maxillary sinus and LS- crown screwed on a standard-length implant after bone graft in the maxillary sinus. An axial occlusal loading of 300 N was applied, divided into five points (60N each) corresponding to occlusal contact. The following analysis criteria were observed: Shear Stress, Maximum and Minimum Main Stress for bone tissue and von Mises Stress for the implant and prosthetic components. The use of standard-length implants reduced the shear stress in the cortical bone by 35.75% and the medullary bone by 51% when compared to short implants. The length of the implant did not affect the stress concentration in the crown, and the cement layer acted by reducing the stresses in the ceramic veneer and framework by 42%. Standard-implants associated with cemented crowns showed better biomechanical behavior.


Resumo O objetivo do estudo foi avaliar o comportamento biomecânico do tecido ósseo peri-implantar e dos componentes protéticos em duas modalidades de tratamento para região posterior da maxila, utilizando implantes curtos ou implantes de comprimento padrão associados a enxerto ósseo em seio maxilar. Foram construídos quatro modelos 3D de uma coroa suportada por um implante osseointegrado na região posterior da maxila. O tipo de implante: implante curto (S) ou implante de comprimento padrão com presença de enxerto sinusal (L) e tipo de retenção da restauração: cimentada (C) ou parafusada (S) foram os fatores de estudo. Foi aplicada uma força oclusal de 300N, dividida em cinco pontos (60 N cada) correspondentes ao contato oclusal de um primeiro molar superior. Foram observados os seguintes critérios de análise: tensão de cisalhamento, tensão principal máxima e mínima para o tecido ósseo e tensão de Von Mises para o implante e componentes protéticos. O uso de implantes de comprimento padrão reduziu a tensão de cisalhamento no osso cortical em 35,75% e no osso medular em 51% quando comparado aos implantes curtos. O comprimento do implante não afetou a concentração de tensão na restauração. A camada de cimento atuou reduzindo as tensões na cerâmica de cobertura e infraestrutura de cerâmica em 42%. Os implantes de tamanho padrão associados às coroas cimentadas apresentaram o melhor comportamento biomecânico.


Subject(s)
Dental Implants , Maxilla/surgery , Stress, Mechanical , Dental Prosthesis Design , Dental Prosthesis, Implant-Supported , Finite Element Analysis , Crowns , Dental Stress Analysis
4.
Article in English | WPRIM | ID: wpr-887748

ABSTRACT

The tilted implantation technique is characterized by placing the implant at an angle of more than 15° and less than 45° from the horizontal plane. This technique can avoid damaging the maxillary sinus, inferior alveolar nerve, nasal base, and other anatomical structures when the height of the upper and lower jaw available bone is insufficient, to maximize the use of available bone and avoid a large range of bone increment. The tilted implantation technique can reduce the trauma of the surgery, increase the possibility of immediate restoration and shorten the treatment cycle, which has been widely used clinically. In this review, the scope of application, design elements, design scheme and complications of the tilted implantation technique for edentulous patients will be described.


Subject(s)
Alveolar Bone Loss , Dental Implantation, Endosseous , Dental Implants , Dental Prosthesis Design , Dental Prosthesis, Implant-Supported , Follow-Up Studies , Humans , Jaw, Edentulous/surgery , Mandible , Maxilla/surgery , Maxillary Sinus/surgery , Mouth, Edentulous/surgery
5.
Article in English | WPRIM | ID: wpr-921376

ABSTRACT

OBJECTIVES@#This study aims to evaluate the endo-sinus bone remodeling of dental implants placed via osteotome sinus floor elevation (OSFE) after 6 months and using different implant protrusion lengths and bone grafts through cone beam computed tomography (CBCT).@*METHODS@#Ninety-six patients with 124 implants were included and assigned into four groups. Group 1: implant protrusion length4 mm with bone graft; group 3: implant protrusion length4 mm without bone graft. Apical bone gain (ABG), cortical bone gain (CBG), bone density gain (BDG), and marginal bone loss (MBL) were observed and analyzed at baseline and 6 months after implant surgery.@*RESULTS@#The CBG in grafted groups 1 and 2 was higher than that in non-grafted groups. The ABG and BDG were higher in non-grafted groups 3 and 4 than in grafted groups, and the levels in group 3 were higher than those in group 4. The CBG in grafted group 2 was higher than that in group 1. No significant difference was observed in MBL analysis.@*CONCLUSIONS@#The BDG of IPL4 mm implant when bone grafts were not applied. No relevance was observed between IPL and CBG. Bone grafts can accelerate endo-sinus bone remodeling by increasing CBG and dissipating the influence of IPL on BDG.


Subject(s)
Dental Implantation, Endosseous , Dental Implants , Humans , Maxilla/surgery , Retrospective Studies , Sinus Floor Augmentation , Treatment Outcome
6.
Dental press j. orthod. (Impr.) ; 26(2): e2119187, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1249699

ABSTRACT

ABSTRACT Introduction: A side effect observed in cases treated with extractions is the instability of orthodontic space closure. Objective: The aim of this study was to investigate the influence of gingival invagination, presence of third molars and facial pattern, on the stability of orthodontic space-closure in the maxillary arch. Methods: Ninety-nine subjects (41 male and 58 female) with Class I malocclusion treated with four premolars extraction were evaluated. Extraction sites reopening and gingival invaginations were evaluated in scanned dental models in the posttreatment and 1-year posttreatment stages (mean age 16.1 years). Third molars presence was evaluated at 1-year posttreatment panoramic radiographs, and the facial pattern (SN.GoGn) was evaluated in the initial lateral headfilms. Multiple logistic regression analysis was used to estimate the influence of the aforementioned independent variables on the frequency of extraction space reopening. Results: Space reopening was observed in 20.20% of the subjects 1-year post-debonding. Gingival invaginations were present in 25.73% of quadrants after debonding and in 22.80% 1-year posttreatment. The mean pre-treatment SN.GoGn was 35.64 degrees (SD=5.26). No significant influence was observed of the three independent variables on the instability of extraction site closure. Conclusions: The presence of gingival invaginations, third molars and facial growth pattern do not seem to influence maxillary extraction sites reopening.


RESUMO Introdução: Um efeito colateral observado nos casos tratados com extrações é a instabilidade do fechamento ortodôntico do espaço. Objetivo: O objetivo do presente estudo foi investigar a influência da invaginação gengival, da presença de terceiros molares e do padrão facial na estabilidade do fechamento ortodôntico dos locais de extração na arcada superior. Métodos: Noventa e nove indivíduos (41 homens e 58 mulheres) com má oclusão de Classe I tratados com extração de quatro pré-molares foram avaliados. A reabertura dos locais de extração e as invaginações gengivais foram avaliadas nos modelos dentários digitalizados nos estágios pós-tratamento e um ano pós-tratamento (idade média de 16,1 anos). A presença dos terceiros molares foi avaliada em radiografias panorâmicas de um ano pós-tratamento, e o padrão facial (SN.GoGn) foi avaliado nas radiografias laterais iniciais. Análise de regressão logística múltipla foi utilizada para estimar a influência das variáveis independentes citadas na frequência de reabertura do espaço de extração. Resultados: A reabertura do espaço foi observada em 20,20% dos sujeitos um ano após a remoção do aparelho. Invaginações gengivais estiveram presentes em 25,73% dos quadrantes após a remoção do aparelho e em 22,80% após um ano pós-tratamento. O SN.GoGn pré-tratamento médio foi de 35,64 graus (DP = 5,26). Não foi observada influência significativa das três variáveis independentes sobre a instabilidade do fechamento do local de extração. Conclusões: A presença de invaginações gengivais, terceiros molares e padrão de crescimento facial não parece influenciar na reabertura dos locais de extração maxilar.


Subject(s)
Humans , Male , Female , Adolescent , Tooth Extraction , Malocclusion, Angle Class I , Tooth Extraction/adverse effects , Bicuspid/surgery , Bicuspid/diagnostic imaging , Orthodontic Space Closure , Malocclusion, Angle Class I/therapy , Malocclusion, Angle Class I/diagnostic imaging , Maxilla/surgery , Maxilla/diagnostic imaging
7.
Dental press j. orthod. (Impr.) ; 26(1): e2119155, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1154069

ABSTRACT

ABSTRACT Introduction: Shorter miniscrew implants (MSIs) are needed to make orthodontics more effective and efficient. Objective: To evaluate the stability, insertion torque, removal torque and pain associated with 3 mm long MSIs placed in humans by a novice clinician. Methods: 82 MSIs were placed in the buccal maxillae of 26 adults. Pairs of adjacent implants were immediately loaded with 100g. Subjects were recalled after 1, 3, 5, and 8 weeks to verify stability and complete questionnaires pertaining to MSI-related pain and discomfort. Results: The overall failure rate was 32.9%. The anterior and posterior MSIs failed 35.7% and 30.0% of the time, respectively. Excluding the 10 MSIs (12.2%) that were traumatically dislodged, the failure rates in the anterior and posterior sites were 30.1% and 15.2%, respectively; the overall primary failure rate was 23.6%. Failures were significantly (p= 0.010) greater (46.3% vs 19.5%) among the first 41 MSIs than the last 41 MSIs that were placed. Excluding the traumatically lost MSIs, the failures occurred on or before day 42. Subjects experienced very low pain (2.2% of maximum) and discomfort (5.5% of maximum) during the first week only. Conclusions: Shorter 3 mm MSIs placed by a novice operator are highly likely to fail. However, failure rates can be substantially decreased over time with the placement of more MSIs. Pain and discomfort experienced after placing 3 mm MSIs is minimal and temporary.


RESUMO Introdução: Mini-implantes (MIs) mais curtos são necessários para uma Ortodontia mais eficiente e efetiva. Objetivo: Avaliar a estabilidade, torque de inserção e de remoção e dor associada a MIs de 3mm instalados em humanos por um ortodontista principiante. Métodos: 82 MIs foram instalados na região vestibular da arcada superior de 26 adultos. Pares de mini-implantes adjacente receberam carga imediata de 100g. Após 1, 3, 5 e 8 semanas, os pacientes foram reavaliados para verificar a estabilidade e preencher um questionário sobre a dor e o desconforto relacionados aos MIs. Resultados: A taxa geral de falhas foi de 32,9%, sendo de 35,7% para os MIs anteriores e 30% para os MIs posteriores. Excluindo os 10 MIs que foram perdidos por trauma (12,2%), a taxa de falha nas regiões anterior e posterior foram de 30,1% e 15,2%, respectivamente e ocorreram no 420 dia ou antes. A taxa geral de falha primária foi de 23,6%. A taxa de falha foi significativamente maior (p=0,010) nos primeiros 41 MIs do que nos 41 últimos (46,3% vs. 19,5%). As experiências relacionadas à dor foram baixas (2,2% máximo), assim como ao desconforto (5,5% máximo) durante a primeira semana. Conclusão: MIs de 3mm instalados por um novato são mais propensos a falhas. Porém, as taxas de falha podem diminuir substancialmente com a instalação de mais MIs com o decorrer do tempo. A dor e o desconforto após a instalação desses dispositivos são mínimos e temporários.


Subject(s)
Humans , Adult , Bone Screws , Dental Implants , Orthodontic Anchorage Procedures , Dental Implants/adverse effects , Feasibility Studies , Dental Prosthesis, Implant-Supported , Torque , Dental Implantation, Endosseous , Maxilla/surgery
8.
Dental press j. orthod. (Impr.) ; 26(3): e2119300, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1286207

ABSTRACT

ABSTRACT Introduction: In Orthodontics and Facial Orthopedics, the timing of treatment onset may be critical and individual analysis should be applied to promote a favorable treatment planning. In this study, individual analysis of midpalatal suture (MS) and palatal measurements were performed in teenagers and young adult patients treated with rapid maxillary expansion (RME). Description: Twenty-six patients submitted to RME with a tooth-supported appliance (Hyrax) were evaluated. The inclusion criteria were: minimum age of 14 years, presenting all posterior teeth, diagnosed with transverse maxillary discrepancy, and with a clinical indication for maxillary expansion. The pretreatment CBCT scans of these patients were assessed to obtain the stages of MS maturation (MSM); density ratio (MSD); and palatal length, thickness (anterior, intermediate and posterior) and sagittal area. Results: The maturation stages present were C, D or E; the density ranged from 0.6 to 1, and lower density (MSD < 0.75) and higher density (MSD ≥ 0.75) groups were determined. Individuals with higher MSD presented smaller sagittal area, compared to the lower density group. Individuals in D and E MSM stages presented smaller sagittal area and intermediate thickness, compared to stage C. Conclusions: Smaller palatal sagittal area was observed in the high MSD groups and in the stages D and E of MSM.


RESUMO Introdução: Em Ortodontia e Ortopedia Facial, o momento de início do tratamento pode ser crítico, e uma análise individual deve ser aplicada para promover um planejamento de tratamento favorável. No presente estudo, foram realizadas a avaliação individualizada da sutura palatina mediana (SPM) e medições no palato de adolescentes e adultos jovens tratados com expansão rápida da maxila (ERM). Descrição: Foram avaliados vinte e seis pacientes submetidos à ERM com aparelho dentossuportado (Hyrax). Os critérios de inclusão foram: idade mínima de 14 anos, apresentando todos os dentes posteriores, diagnosticado com discrepância transversa da maxila e com uma indicação clínica para expansão maxilar. A tomografia computadorizada de feixe cônico (TCFC) pré-tratamento desses pacientes foi avaliada para obter os estágios de maturação da SPM (MSPM), densidade da SPM (DSPM), comprimento do palato, espessura (anterior, intermediária e posterior) e área sagital. Resultados: Os estágios de maturação presentes foram C, D ou E; a densidade variou de 0,6 a 1, e foram determinados grupos de baixa (DSPM < 0,75) e alta densidade (DSPM ≥ 0,75). Indivíduos com maior DSPM apresentaram menor área sagital, em comparação com o grupo de densidade mais baixa. Indivíduos nos estágios D e E de MSPM apresentaram menor área sagital e espessura intermediária, comparados aos indivíduos no estágio C. Conclusão: Uma menor área sagital palatina foi observada nos grupos de alta DSPM e nos estágios D e E de MSPM.


Subject(s)
Humans , Male , Adolescent , Young Adult , Palatal Expansion Technique , Sexual and Gender Minorities , Sutures , Homosexuality, Male , Cranial Sutures/diagnostic imaging , Cone-Beam Computed Tomography , Maxilla/surgery , Maxilla/diagnostic imaging
9.
Article in English | WPRIM | ID: wpr-878445

ABSTRACT

OBJECTIVES@#This study aims to evaluate the short-term clinical outcomes and patient satisfaction of anterior and pterygoid implants in the rehabilitation of edentulous maxilla with posterior atrophy.@*METHODS@#Given a minimum follow-up of 1 year, 25 patients with fixed maxillary rehabilitation over anterior and pterygoid implants were enrolled in this retrospective study. The implant survival rates, peri-implant soft tissue status (including probing depth, modified sulcus bleeding index, and plaque index), marginal bone loss, and patient satisfaction were measured.@*RESULTS@#The survival rates for anterior and pterygoid implants at 1-year follow-up were 96.5% and 97.8%, respectively (@*CONCLUSIONS@#For the edentulous maxilla with posterior atrophy, full-arch fixed prostheses supported by anterior and pterygoid implants has an acceptable short-term clinical outcome and excellent patient satisfaction. It may be considered as a predictable and feasible method for maxillary rehabilitation.


Subject(s)
Atrophy/pathology , Dental Implantation, Endosseous , Dental Implants , Dental Prosthesis, Implant-Supported , Follow-Up Studies , Humans , Jaw, Edentulous/surgery , Maxilla/surgery , Retrospective Studies , Treatment Outcome
10.
Int. j. morphol ; 38(5): 1426-1433, oct. 2020. graf
Article in English | LILACS | ID: biblio-1134459

ABSTRACT

SUMMARY: Bone morphogenetic protein (rhBMP-2) is a powerful osteo-inductive growth factor widely used in bone reconstruction and both the vehicle used to administer it and the scaffold substrate could determine its success in clinical situations. The aim was to analyse the clinical behaviour of dental implants placed in single alveolar ridges with a horizontal deficiency in the maxillary anterior region that were reconstructed horizontally with rhBMP-2 and porous hydroxyapatite (HA). Inclusion criteria were both males and females, between the ages of 18 and 29 with single tooth loss of one upper incisor. Cone Beam Computed Tomography (CBCT) was used to take measurements prior to bone augmentation and again prior to the implant insertion. Surgery was carried out under local anaesthetic. In the primary procedure, bone substitute was introduced using porous HA and rhBMP-2; after 4 to 5 months, dental implant surgery was carried out and the implant placed; after 3 months of consolidation the provisional prosthesis was placed and then a definitive restoration was placed. Variables were analysed using the t-test with a p-value of < 0.05 in order to assess statistical significance. Thirteen subjects were included (6 females and 7 males). Bone augmentation resulted in a bone gain of 4.15mm (p=0.023), which was shown to be statistically significant. All of the grafts placed were successful and 13 implants were placed, using torques between 30 and 70N, without complications. For the final prostheses, 11 were screw retained and 2 were cemented in place. The horizontal bone augmentation using HA and rhBMP-2 is an efficient technique for single bone defects in the anterior maxillary area; clinical trials on a larger scale are needed to confirm these results.


RESUMEN: La proteína ósea morfogenética (BMP-2) es un potente osteoinductor utilizado ampliamente en técnicas reconstructivas; el vehículo de instalación es determinante en su evolución. El objetivo fue analizar el comportamiento clínico de implantes dentales instalados en rebordes alveolares únicos con deficiencia horizontal del sector anterior reconstruida horizontalmente con BMP-2 e hidroxiapatita (HA) porosa. Fueron incluidos sujetos de ambos sexos de entre 18 y 29 años, con pérdida dentaria unitaria a nivel de incisivos superiores. Se utilizó tomografía computadorizada para realizar mediciones en las etapas previa a la instalación del injerto y previo a la instalación del implante. Las cirugías fueron realizadas bajo anestesia local. En la primera intervención se realizó la instalación del injerto óseo utilizando HA porosa y BMP-2; después de 4 a 5 meses se realizó la instalación del implante dental; 3 meses después se realizó la conexión protésica y rehabilitación final. Las variables fueron estudiadas con la prueba t test considerando el valor de p< 0,05 para considerar significancia estadística. Trece sujetos fueron incluidos (6 mujeres y 7 hombres); con la reconstrucción ósea se obtuvo una ganancia ósea de 4,15mm (p=0.023) que fue estadísticamente significativo. No existió pérdida en ningún injerto realizado; se instalaron 13 implantes con torques entre 30 y 70N sin complicaciones; se realizaron prótesis fijas atornilladas en 11 casos y cementadas en 2 casos. La técnica con HA y BMP- 2 es eficiente para reconstruir defectos horizontales en perdidas unitarias del sector anterior maxilar; ensayos clínicos de mayor escala son necesarios para confirmar estos resultados.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Young Adult , Bone Morphogenetic Protein 2/therapeutic use , Alveolar Ridge Augmentation/methods , Hydroxyapatites/therapeutic use , Maxilla/surgery , Bone Regeneration , Tomography, X-Ray Computed , Dental Implants , Longitudinal Studies , Bone Transplantation/methods , Bone Substitutes , Alveolar Process/diagnostic imaging , Maxilla/diagnostic imaging
11.
J. oral res. (Impresa) ; 9(5): 423-429, oct. 31, 2020. ilus, tab
Article in English | LILACS | ID: biblio-1179034

ABSTRACT

Introduction: Orthognathic surgery is a routine procedure carried out by maxillofacial surgeons in patients with dento-skeletal deformations (DSD) with the objective of achieving functional and esthetical satisfactory results. However, some in cases, due to the decision of the patient or the orthodontic team, the occlusion is tried to be compensated with the intention of avoiding surgery, without optimal results. As a consequence, some extra procedures are required in the surgery to correct and obtain better results. Objective: The aim of this case is to propose the anterior segmental osteotomy (ASO) as alternative of treatment in patients with dento-skeletal deformity class III with maxillary and para-nasal deficiency which have been orthodontically compensated. Material and methods: A 18 years old female with DED Class III due anterior-posterior (AP) maxillary and paranasal deficiency and AP mandibular excess. The surgery was carried out through Le Fort I osteotomy in combination with a segmentary osteotomy at the expense of first premolars and bilateral setback sagittal split osteotomy (BSSO). Clinical and imageology post operatory controls were made during the first 6 months and at two years. Results: Through the realization of the anterior segmental osteotomy the correction of occlusal and transversal alterations of the patient maxilla were performed and additionally favorable facial changes were obtained. Conclusion: The initial orthodontic management of patients with DSD will influence the surgical procedures and the achievement of a balance between esthetics and function. This illustrates why the treatment of these patients must be multidisciplinary; the treatment that was chosen in this case was innovative and could be an alternative for the treatments of patients with DED Class III.


Introducción: La cirugía ortognática es un procedimiento de rutina que realizan los cirujanos bucomaxilofaciales en pacientes con deformidades dento esqueletales (DDE) con la finalidad de lograr un resultado funcional y estético satisfactorio. Sin embargo, hay casos en los cuales, ya sea por decisión del paciente o por el ortodoncista, se intenta compensar la oclusión con el fin de evitar la fase quirúrgica no obteniendo los resultados más óptimos; y como consecuencia, se requiere de procedimientos adicionales a los convencionales en la cirugía para corregir y lograr el mejor resultado. Objetivo: El propósito de este caso es proponer la osteotomía segmentaria anterior (OSA) como alternativa de tratamiento en pacientes con Deformidad Dento Esqueletal clase III con deficiencia maxilar y paranasal los cuales han sido compensados ortodonticamente. Material y Métodos: Paciente femenina de 18 años de edad con Deformidad Dento Esqueletal Clase III por deficiencia AP maxilar y paranasal y exceso AP mandibular. Se realiza cirugía mediante osteotomía Le Fort I en combinación con osteotomía segmentaria a expensas de primeros premolares, osteotomía sagital de rama bilateral de retroposición. Se realizan controles post-operatorios clínico e imagenológicos durante los primeros 6 meses. Resultados: Por medio de la realización de la osteotomía segmentaria anterior se pudo realizar la corrección de las alteraciones oclusales y transversales del maxilar de la paciente, además de producir cambios faciales favorables. Conclusión: El manejo inicial de los pacientes con deformidades dento-esqueletales por parte del ortodoncista va influir en los procedimientos quirúrgicos y en lograr un balance entre lo estético y lo funcional, por lo que el tratamiento en estos pacientes es multidisciplinario; el tratamiento realizado en este caso en una solución innovadora y puede llegar a tomarse como alternativa en los tratamientos de las clases III.


Subject(s)
Humans , Female , Adolescent , Orthognathic Surgery , Dentofacial Deformities/surgery , Malocclusion/surgery , Maxilla/surgery , Osteotomy, Le Fort , Orthognathic Surgical Procedures
12.
CoDAS ; 32(4): e20190152, 2020. tab
Article in Portuguese | LILACS | ID: biblio-1133516

ABSTRACT

RESUMO Objetivo Investigar a influência do tipo de fissura sobre o aparecimento da hipernasalidade após o avanço cirúrgico da maxila (AM). Método A nasalidade foi determinada por meio da medida de nasalância (correlato acústico da nasalidade) utilizando-se a nasometria. Foi realizada a análise dos escores de nasalância de 17 indivíduos com fissura isolada de palato (FP), 118 com fissura de lábio e palato unilateral (FLPU) e 69 com fissura de lábio e palato bilateral (FLPB), de ambos os sexos, com idades entre 18 e 28 anos, submetidos ao AM. Apenas indivíduos com escores de nasalância indicativos de ressonância equilibrada previamente ao AM foram incluídos neste estudo. A nasometria foi realizada, em média, três dias antes e 15 meses após o AM. A proporção de pacientes que apresentaram escores de nasalância indicativos de hipernasalidade após o AM foi calculada por meio do teste ANOVA e a comparação entre os diferentes tipos de fissura foi realizada utilizando-se o teste Qui-quadrado (p < 0,05). Resultados Não foi observada diferença significante entre as proporções de indivíduos com hipernasalidade, de acordo com o tipo de fissura. Conclusão A nasometria mostrou que o aparecimento da hipernasalidade após o AM, em indivíduos com fissura de palato envolvendo ou não o lábio, ocorreu em proporções similares independentemente do tipo de fissura.


ABSTRACT Purpose This study investigated the influence of the cleft type on the appearance of hypernasality after surgical maxillary advancement (MA). Methods Nasality was determined by measurement of nasalance (acoustic correlate of nasality) by nasometry. The study involved analysis of the nasalance scores of 17 individuals with isolated cleft palate (CP), 118 with unilateral cleft lip and palate (UCLP) and 69 with bilateral cleft lip and palate (BCLP), of both sexes, aged 18 to 28 years, after MA. Only individuals with normal nasalance scores indicating balanced resonance before MA were included in this study. Nasometry was performed 3 days before and 15 months after MA, on average. The proportion of patients who presented nasalance scores indicating hypernasality after surgery was calculated by the ANOVA test, and comparison among the different cleft types was evaluated by the chi-square test (p < 0.05). Results No significant difference was found in the proportions of individuals with hypernasality among the cleft types. Conclusion Nasometry showed that the appearance of hypernasality after MA in individuals with cleft palate with or without cleft lip occurred in similar proportions, regardless of the cleft type.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Young Adult , Speech/physiology , Speech Disorders/etiology , Velopharyngeal Insufficiency/etiology , Cleft Lip/surgery , Cleft Palate/surgery , Orthognathic Surgical Procedures/adverse effects , Speech Disorders/physiopathology , Speech Production Measurement , Velopharyngeal Insufficiency/physiopathology , Retrospective Studies , Cleft Lip/physiopathology , Cleft Palate/physiopathology , Osteotomy, Le Fort/adverse effects , Maxilla/surgery
13.
Article in Chinese | WPRIM | ID: wpr-878387

ABSTRACT

OBJECTIVE@#To study the comprehensive impact of scar and maxillary expansion combined with protraction on the development of maxilla with cleft lip and palate after repair operation.@*METHODS@#In the original finite element model of the maxilla with cleft palate, a finite element model of the maxilla with cleft lip and palate was established by using Boolean operation in ANSYS. Scar force after cleft lip and palate repair and maxillary expansion force combined with protraction were added simultaneously to process the stress analysis.@*RESULTS@#Maxillary deformation occurred in the three-dimensional direction. The comparison of displacements was as follows: X-axis>Z-axis>Y-axis.@*CONCLUSIONS@#Maxillary growth is significantly inhibited in the three-dimensional direction under the comprehensive impact of scar and maxillary expansion combined with protraction after repair operation, especially transverse and sagittal growth.


Subject(s)
Cicatrix/pathology , Cleft Lip/surgery , Cleft Palate/surgery , Finite Element Analysis , Humans , Maxilla/surgery , Palatal Expansion Technique
14.
Int. j. odontostomatol. (Print) ; 13(4): 504-510, dic. 2019. graf
Article in English | LILACS | ID: biblio-1056492

ABSTRACT

ABSTRACT: Many orthodontic treatments alone cannot reestablish an ideal occlusion, requiring correction through orthognathic surgery. An adequate surgical planning, execution and case follow-up can provide surgical stability between the maxilla and the mandible. Soft tissue conservation and proper correction during a healing phase are important to achieving this goal. Patient C.L.B.S, 38 years old, female, presented with Angle Class I occlusion, facial profile class II, maxilla with mobility, chin surgically advanced and anterior open bite. She was submitted to orthognathic surgery 10 years ago. In the panoramic radiography the absence of bone formation in the maxilla was observed, causing an open bite. For the surgery conventional radiographs were used, as well as the dental cast in articulator for model surgery and preparation of surgical guide. With the surgery an improvement in the patient's aesthetics profile and an ideal occlusion, static and functional were expected. The treatment was orthodontic-surgical, with correction of the dento-facial deformity with counter-clockwise rotation of the maxilla, lowering repositioning in 3 mm of its posterior portion through Le Fort I osteotomy, advancement of the 4 mm mandible with bilateral sagittal osteotomy, and genioplasty for posterior repositioning with a Z-osteotomy, to improve mentual harmony. There was an improvement in the profile and aesthetics of the patient, which developed an Angle Class I profile, a decrease in the mentual projection, and an aesthetic and functional improvement. The orthognathic surgery allowed the advancement of the mandible, the repositioning of the maxilla and the mentual posterior repositioning, obtaining the correction of the Angle class II profile and the anterior open bite, resulting in an important improvement of facial profile and esthetics, presence of skeletal stability, restoration of function, self-esteem and quality of life.


RESUMEN: En muchos casos, el tratamiento ortodóntico por si solo no puede restablecer una oclusión ideal, siendo necesaria una cirúrgia ortognática. Una buena planificación quirúrgica, ejecución y seguimiento del caso, pueden proporcionar estabilidad entre los maxilares. La preservación de los tejidos blandos y una fijación adecuada son esenciales para ese objetivo. La paciente CLBS, 38 años, se presentó con oclusión Clase I de Angle, teniendo perfil clase II, maxilar con movilidad, mentón quirúrgicamente avanzado y mordida abierta anterior. La paciente fue sometida a cirugía ortognática 10 años antes. En radiografía panorámica, se nota la ausencia de formación ósea debido a una fijación maxilar realizada erróneamente, lo que causó la mordida abierta. Durante la planificación, fueron utilizadas radiografías convencionales, modelos de yeso en articulador para cirugía de modelo y confección de guía quirúrgica. Con el procedimento quirúrgico se esperaba obtener una mejora en el perfil de la paciente y una oclusión ideal, estática y funcional. El tratamiento fue ortodóntico-quirúrgico, con corrección de la deformidad dento-facial con giro antihorario de la mandíbula, con reposicionamiento inferior de 3 mm de su parte posterior, por medio de osteotomía Le Fort I, avance de la mandíbula de 4 mm con osteotomía sagital bilateral, y retroceso del mentón en su posición original con osteotomía en Z, mejorando la armonía del mentón. Hubo una mejora en perfil y en la estética de la paciente, como también una mejora en el perfil, estética y funcionalidade, con diminución del mentón. La cirúrgia ortognática permitió el movimiento de la mandíbula, reposicionamiento maxilar y además fue posible retroceder el mentón, obteniendo la corrección del perfil Clase II y de la mordida abierta anterior. El resultado representa una mejora del perfil y de la estética facial, además se nota una estabilidad esquelética, con restablecimiento de la función, autoestima y calidad de vida.


Subject(s)
Humans , Female , Adult , Orthognathic Surgical Procedures , Orthognathic Surgery , Mandible/surgery , Maxilla/surgery , Pseudarthrosis/surgery , Brazil , Radiography, Panoramic/methods , Cephalometry , Open Bite/epidemiology , Dental Occlusion, Traumatic , Cone-Beam Computed Tomography/methods , Malocclusion, Angle Class I , Mandible/diagnostic imaging
15.
Int. j. odontostomatol. (Print) ; 13(2): 123-131, jun. 2019. tab, graf
Article in Spanish | LILACS | ID: biblio-1002294

ABSTRACT

RESUMEN: Las fisuras labiopalatinas corresponden a las malformaciones de cabeza y cuello de mayor prevalencia a nivel mundial; dentro de las cuales, aquellas que no están asociadas a síndrome son las más frecuentes. Los pacientes que sufren estas malformaciones presentan en muchos casos hipoplasia maxilar. La distracción osteogénica maxilar mediante distractor externo rígido constituye una alternativa de tratamiento para la corrección de esta deficiencia esqueletal. Describir los cambios faciales y su estabilidad en el tiempo, en pacientes con fisura labio palatina no sindrómica sometidos a distracción osteogénica maxilar con distractor externo rígido. Se realizó una búsqueda estratégica en las bases de datos PubMed, Epistemonikos, EBSCO, BEIC y The Cochrane Library a través de las palabras clave cleft palate; cleft lip and palate; distraction osteogenesis; osteodistraction; callotasis; callotases; callus distraction, maxillary hypoplasia; midface hypoplasia; hypoplastic maxilla; maxillary deficiency; retromaxilla y maxillary retrognatism; con los términos booleanos AND y OR. Se seleccionaron 20 artículos: 2 revisiones sistemáticas, 3 ensayos clínicos, 14 estudios observacionales descriptivos y 1 estudio observacional analítico. La distracción osteogénica maxilar con distractor externo rígido corresponde a una alternativa efectiva en el tratamiento de la retrusión del tercio medio en pacientes con fisura labiopalatina no sindrómica. Esta técnica, sin embargo, no consigue cambios completamente estables, existiendo múltiples factores relacionados con su recidiva.


ABSTRACT: Cleft lip and palate is the world's most prevalent head and neck malformation, within which, nonsyndromic is the most frequent. Patients with this malformation in many cases present maxillary hypoplasia. Maxillary distraction osteogenesis through a rigid external distractor constitutes an alternative to correct this skeletal deficiency. The objective of this study was to describe facial changes and their stability over time in non-syndromic cleft lip and palate patients undergoing distraction osteogenesis through rigid external distractor. An electronic search was carried out in PubMed database, Epistemonikos, EBSCO, BEIC and The Cochrane Library through the keywords cleft palate; cleft lip and palate; distraction osteogenesis; osteodistraction; callotasis; callotases; callus distraction, maxillary hypoplasia; midface hypoplasia; hypoplastic maxilla; maxillary deficiency; retromaxilla and maxillary retrognatism, related to each other with the Boolean terms AND and OR. For this analysis 20 articles were selected: 2 systematic reviews, 3 clinical trials, 14 descriptive observational studies and 1 analytic observational study. Maxillary distraction osteogenesis through rigid external distractor is an effective alternative in the treatment of midface retrusion in non-syndromic cleft lip and palate patients. However, this technique does not completely achieve stable changes, due to multiple factors related to its recurrence.


Subject(s)
Humans , Cleft Lip/surgery , Cleft Palate/surgery , Osteotomy, Le Fort/methods , Osteogenesis, Distraction/methods , Orthognathic Surgery , Maxilla/abnormalities , Maxilla/surgery
16.
Int. j. morphol ; 37(1): 82-86, 2019. tab, graf
Article in English | LILACS | ID: biblio-990009

ABSTRACT

SUMMARY: The aim of this study was to characterize a commercial beta tricalcium phosphate (β-TCP) block allograft for use in maxillofacial reconstruction, evaluating its homogeneity, porosity and mineralization. Two commercial 5 x 5 x10 mm chronOS Vivify β-TCP blocks were used, which were evaluated by a STEM SU-3500 variable pressure scanning electron microscope (SEM-STEM) (Hitachi, Japan). For the semi-quantitative microanalysis of elements, the QUANTAX 100 energy dispersive x-ray spectrometer detector (EDX) (Bruker, Germany) was used. The homogeneity of the structural morphology, macropore and micropore size and component homogeneity were evaluated. The microscopic analysis showed micropores of 164.92 mm (± 35.032 mm) in diameter in the outer area and micropores in the inner area of 54.44 mm (± 17.676 mm). The formation of porosities and irregularities present in the block was heterogeneous between the outer and inner surfaces. The mineral content of the blocks presented homogeneity with the presence of carbon (2.02 %), oxygen (44.33 %), phosphate (16.62 %) and calcium (37.87 %). The β-TCP block can be used in bone reconstruction but the presence of reduced macropore and micropore sizes could limit efficiency in the substitution and bone regeneration phase.


RESUMEN: El objetivo de este estudio fue caracterizar un aloinjerto de bloqueo de fosfato tricálcico (β-TCP) comercial para su uso en la reconstrucción maxilofacial, evaluando su homogeneidad, porosidad y mineralización. Se utilizaron dos bloques comerciales de 5 x 5 x 10 mm de vivify β-TCP de chronOS, que se evaluaron mediante un microscopio electrónico de barrido de presión variable STEM SU-3500 (SEM-STEM) (Hitachi, Japón). Para el microanálisis de elementos semicuantitativo, se utilizó el detector de espectrómetro de rayos X de dispersión de energía QUANTAX 100 (EDX) (Bruker, Alemania). Se evaluó la homogeneidad de la morfología estructural, el tamaño del macroporo y microporo y la homogeneidad de los componentes. El análisis microscópico mostró microporos de 164,92 mm (± 35,032 mm) de diámetro en el área externa y microporos en el área interna de 54,44 mm (± 17,676 mm). La formación de porosidades e irregularidades presentes en el bloque fue heterogénea entre las superficies externas e internas. El contenido mineral de los bloques presentó homogeneidad con la presencia de carbono (2,02 %), oxígeno (44,33 %), fosfato (16,62 %) y calcio (37,87 %). El bloque β-TCP se puede utilizar en la reconstrucción ósea, pero la presencia de macroporos y tamaños de microporos reducidos podría limitar la eficacia en la fase de sustitución y regeneración ósea.


Subject(s)
Humans , Calcium Phosphates/therapeutic use , Bone Transplantation/methods , Bone Substitutes/therapeutic use , Reconstructive Surgical Procedures/methods , Bone Regeneration , Microscopy, Electron, Scanning , Face/surgery , Tissue Scaffolds , Allografts , Maxilla/surgery
17.
J. appl. oral sci ; 27: e20180510, 2019. tab
Article in English | LILACS, BBO | ID: biblio-1012508

ABSTRACT

Abstract Intermaxillary fixation (IMF) is a classic method for immobilization of the mandible after mandibular fractures and corrective surgery. However, it has been suggested that IMF may be a risk for developing temporomandibular joint (TMJ)-related symptoms, especially when applied for longer periods. Objective: To evaluate the clinical function of TMJs and masticatory muscles 10-15 years after mandibular setback surgery and subsequent six weeks of IMF. The patients' self-reported TMJ and masticatory muscle symptoms were also addressed. Methodology: Thirty-six patients (24 women and 12 men) treated with intraoral vertical ramus osteotomies and subsequent six weeks of IMF, underwent a clinical examination of TMJs and masticatory muscles 10-15 years after surgery and completed a five-item structured questionnaire reporting subjective TMJ-related symptoms. Mean age by the time of clinical examination was 34.1 years (range 27.2-59.8 years). The clinical outcome was registered according to the Helkimo clinical dysfunction index. Descriptive and bivariate statistics were performed and level of significance was set to 5%. Results: Mean maximum unassisted mouth opening 10-15 years after surgery was 50.1 mm, (range 38-70 mm, SE 1.2), statistically significantly greater in men compared to women (p=0.004). Mean Helkimo dysfunction group was 1.5 (range 1-3, SE 0.10). Eighty-one percent experienced pain on palpation in either the masseter muscle, temporal muscle or both, and 31% experienced pain when moving the mandible in one or more directions. Thirty-one percent reported pain from palpating the TMJs. In the questionnaire, none reported to have pain during chewing or mouth opening on a weekly or daily basis, but 22% reported difficulties with maximum opening of the mouth. Conclusion: Ten to fifteen years after mandibular setback surgery the patient's mandibular range of movement is good. Despite clinically recognizable symptoms, few patients reported having TMJ- or masticatory muscle-related symptoms in their daily life.


Subject(s)
Humans , Male , Female , Adult , Temporomandibular Joint/physiopathology , Temporomandibular Joint Disorders/physiopathology , Malocclusion, Angle Class III/surgery , Masticatory Muscles/physiopathology , Maxilla/surgery , Reference Values , Time Factors , Temporomandibular Joint Disorders/etiology , Follow-Up Studies , Treatment Outcome , Statistics, Nonparametric , Jaw Fixation Techniques/adverse effects , Self Report , Myalgia/physiopathology , Malocclusion, Angle Class III/physiopathology , Maxilla/physiopathology , Middle Aged
18.
Dental press j. orthod. (Impr.) ; 23(6): 80-89, Nov.-Dec. 2018. tab, graf
Article in English | LILACS | ID: biblio-975031

ABSTRACT

Abstract Facial asymmetry is a condition that compromises function and social interactions and, consequently, the quality of life. Orthodontic-surgical treatment may be indicated to achieve a stable occlusion and significant improvement in facial aesthetics. The virtual planning of the maxillary, mandibular and chin movements can be done prior to surgery. These movements can be successfully performed with the use of prototyped guides obtained from virtual planning. The aim of this article is to show the state of the art of treatments of facial asymmetries, and emphasize how important is the multi-disciplinary approach to achieve predictable aesthetic and functionally stable results in a patient with facial asymmetry and chin protrusion.


Resumo A assimetria facial é uma condição capaz de comprometer a função oclusal e as interações sociais e, consequentemente, a qualidade de vida dos indivíduos. Nessas condições, para se obter oclusão estável e melhora significativa na estética facial, o tratamento ortodôntico-cirúrgico pode estar indicado. A simulação virtual da cirurgia permite planejar de forma adequada, e antecipada, os movimentos cirúrgicos a serem efetuados na maxila, mandíbula e mento. Esses movimentos são, então, realizados com sucesso graças ao uso de guias prototipados obtidos a partir do planejamento virtual. Assim, os objetivos do presente artigo consistem em relatar o estado da arte no planejamento virtual do tratamento de um paciente com assimetria facial e protrusão do mento, e enfatizar a importância da abordagem multidisciplinar para se atingir resultados estéticos previsíveis e funcionalmente estáveis.


Subject(s)
Humans , Male , Esthetics , Facial Asymmetry/surgery , Facial Asymmetry/therapy , Orthognathic Surgical Procedures/methods , Orthognathic Surgery/methods , Orthodontics, Corrective , Osteotomy/methods , Patient Care Planning , Cephalometry , Chin/surgery , Osteotomy, Le Fort/methods , Surgery, Computer-Assisted/methods , Dental Occlusion , Facial Asymmetry/diagnostic imaging , Dentofacial Deformities/surgery , Dentofacial Deformities/therapy , Malocclusion/surgery , Malocclusion/therapy , Malocclusion/diagnostic imaging , Mandible/surgery , Mandible/diagnostic imaging , Maxilla/surgery , Maxilla/diagnostic imaging
19.
Rev. otorrinolaringol. cir. cabeza cuello ; 78(4): 439-450, dic. 2018. ilus
Article in Spanish | LILACS | ID: biblio-985752

ABSTRACT

RESUMEN Considerando los avances en las modalidades de tratamiento para el cáncer de cabeza y cuello, el manejo quirúrgico de los defectos ha cambiado significativamente en las últimas décadas. Con la mejoría del manejo previo a la cirugía en la década de los 40s-50s, la cirugía ablativa o resectiva se convirtió en el pilar del tratamiento de los tumores avanzados en esta región, lo cual rutinariamente era seguido de tratamiento con radioterapia. Desafortunadamente, la cirugía reconstructiva no avanzó de la misma forma, no existiendo previamente opciones confiables de rehabilitación de estos pacientes. Además, los cirujanos de cabeza y cuello como otorrinolaringólogos de la época no consideraban la reconstrucción como parte importante del tratamiento quirúrgico. Sin embargo, en las últimas décadas, la cirugía reconstructiva ha presentado distintos avances que han permitido complementar el manejo de estas patologías, entregando una terapia oncológica con menos morbilidad cosmética y funcional. Esta revisión pretende de forma general dar a conocer los distintos tipos de colgajo, sus indicaciones y opciones en cirugía reconstructiva de cabeza y cuello, lo cual es de suma importancia para los servicios que manejen patología oncológica de esta región anatómica.


ABSTRACT Encompassing with the advances in the preferred treatment modalities for head and neck cancer, the management of surgical defects has changed significantly over the last decades. With the advent of improved perioperative management in the 1940-50s, radical ablative surgery became the mainstay for treatment of advanced tumors in this region, which was routinely followed by radiation therapy. Unfortunately, reconstructive surgery did not advance at the same pace, and there were no reliable reconstructive options to rehabilitate these patients. Furthermore, head and neck surgeons and otolaryngologists of the time did not consider reconstruction as an important part of the surgical treatment. However, in the last decades, reconstructive surgery has presented different advances that have made it possible to complement the management of these pathologies, delivering an oncological therapy with less cosmetic and functional morbidity. This review aims in general to make known the different types of flap, its indications and options in reconstructive surgery of the head and neck, of utmost importance for the services that handle oncological pathology of this anatomical region.


Subject(s)
Humans , Surgical Flaps , Reconstructive Surgical Procedures/methods , Head and Neck Neoplasms/surgery , Radiotherapy , Mandibular Reconstruction/methods , Maxilla/surgery
20.
Rev. Odontol. Araçatuba (Impr.) ; 39(2): 17-21, maio/ago. 2018. ilus
Article in Portuguese | LILACS, BBO | ID: biblio-913464

ABSTRACT

Cirurgias de ressecção parcial ou total da maxila em pacientes oncológicos geram comprometimento funcional e estético, alterando a deglutição, mastigação, fonética e aspiração, diminuindo a qualidade de vida do paciente. Assim, o objetivo deste estudo foi descrever a reabilitação oral de um paciente com prótese total maxilar estendida e uma prótese total mandibular convencional. Tal paciente havia sido submetido à uma cirurgia de ressecção parcial do rebordo alveolar maxilar, sem comunicação bucossinusal, por ser portador de Carcinoma espinocelular grau I. Paciente do sexo masculino, 69 anos, procurou atendimento no Centro de Oncologia Bucal da FOA ­ UNESP, para confecção de suas próteses, após dois anos da realização de sua cirurgia. Foi observado declínio do suporte labial no local onde havia sido feita a ressecção cirúrgica gerando comprometimento estético e funcional ao paciente. Desta forma, foi proposta a realização de confecção de prótese total maxilar estendida e prótese inferior convencional, as quais foram instaladas e ajustadas adequadamente. Após 1 ano de acompanhamento, paciente encontra-se satisfeito com o tratamento, o qual devolveu sua estética, função e fonética(AU)


Surgeries of partial or total resection of the maxilla in oncological patients generate functional and aesthetic impairment, altering swallowing, chewing, phonetics and aspiration, reducing the quality of life of the patient. Thus, the objective of this study was to describe the oral rehabilitation of a patient with maxillary total prosthesis and a conventional mandibular total prosthesis. This patient had undergone surgery of partial resection of the maxillary alveolar ridge, without bucosinusal communication, for being a carrier of grade I squamous cell carcinoma. A 69-year-old male patient sought care at the Oral Oncology Center of FOA - UNESP, for denture after two years of surgery. Decreased lip support was observed in the place where surgical resection had been performed, generating aesthetic and functional impairment to the patient. In this way, it was proposed to make a complete maxillary full prosthesis and conventional lower prosthesis, which were installed and adjusted properly. After 1 year of follow-up, the patient was satisfied with the treatment, which returned his aesthetics, function and phonetics(AU)


Subject(s)
Humans , Male , Aged , Carcinoma, Squamous Cell , Dental Prosthesis , Maxilla/surgery , Maxillofacial Prosthesis , Alveolar Process/surgery , Quality of Life
SELECTION OF CITATIONS
SEARCH DETAIL