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1.
Rev. Odontol. Araçatuba (Online) ; 43(1): 24-30, jan.-abr. 2022. ilus
Article in Portuguese | LILACS, BBO | ID: biblio-1361646

ABSTRACT

Introdução: As próteses parciais removíveis são alternativas amplamente utilizadas na reabilitação oral de pacientes parcialmente desdentados. Na atualidade os implantes dentais têm sido indicados para tratamento de pacientes edêntulos em associação com próteses parciais removíveis convencionais. Objetivo: Relatar um caso clínico utilizando uma prótese parcial removível convencional associada a implantes osseointegrados em paciente portador de Classe I de Kennedy. Relato de Caso: Paciente N.A.A.S., sexo feminino, 65 anos, procurou atendimento clínico no Instituto de Estudos da Saúde (IES) para reabilitação protética das arcadas dentais superior e inferior. A sua queixa principal era "dificuldade de mastigação". A paciente apresentava prótese total removível insatisfatória na maxila e não utilizava nenhum tipo de prótese dentária na mandíbula, que se apresentava parcialmente edêntula. O tratamento realizado foi a confecção de uma prótese total na arcada superior. Na arcada inferior foram inseridos dois implantes de hexágono externo nas regiões correspondentes às áreas dos dentes 34 e 44, após quatro meses a prótese parcial removível convencional foi confeccionada e incorporada aos implantes osseointegrados utilizando o sistema de retenção do tipo attachments Equator. Conclusão: Os resultados revelaram que a técnica de associação da prótese parcial removível convencional aos implantes osseointegrados demonstrou ser uma opção viável de tratamento com capacidade de devolver a função, a estética e manter a integridade dos dentes e tecidos periodontais(AU)


Introduction: Removable partial dentures are alternatives widely used in the oral rehabilitation of partially edentulous patients. Currently, dental implants have been indicated for the treatment of edentulous patients in association with conventional removable partial dentures. Objective: To report a clinical case using a conventional removable partial denture associated with osseointegrated implants in a patient with Kennedy Class I. Case Report: Patient N.A.A.S., female, 65 years old, sought clinical care at the Institute of Health Studies (HEI) for prosthetic rehabilitation of the upper and lower dental arches. His main complaint was "chewing difficulty". The patient had unsatisfactory removable total prosthesis in the maxilla and did not use any type of dental prosthesis in the mandible, which was partially edentulous. The treatment performed was the manufacture of a total prosthesis in the upper arch. In the lower arch, two external hexagon implants were inserted in the regions corresponding to the tooth areas 34 and 44, after four months the conventional removable partial denture was made and incorporated into the osseointegrated implants using the equator attachments retention system. Conclusion: The results revealed that the technique of associating conventional removable partial dentures with osseointegrated implants proved to be a viable treatment option with the ability to restore function, aesthetics and maintain the integrity of teeth and periodontal tissues(AU)


Subject(s)
Humans , Female , Aged , Dental Implantation, Endosseous , Denture, Partial, Removable , Dental Implants , Dental Prosthesis Design , Esthetics, Dental , Bone-Anchored Prosthesis
2.
Rev. Odontol. Araçatuba (Impr.) ; 42(2): 35-41, maio-ago. 2021.
Article in Portuguese | LILACS, BBO | ID: biblio-1252912

ABSTRACT

O objetivo deste estudo é realizar uma revisão da literatura para identificar os principais fatores que levam às complicações em implantodontia. Os implantes osseointegráveis e sua aplicação na odontologia revolucionaram a reabilitação oral de pacientes sejam eles edêntulos totais ou parciais em busca de recuperação funcional e satisfação estética. A pesquisa científica em uma busca constante pela magnificação deste tratamento, possibilitaram o uso de reabilitações implantossuportadas como um método de tratamento previsível com um índice elevado de sucesso. No entanto, como qualquer modo de tratamento, complicações e falhas também podem ocorrer na implantodontia. Após a revisão de literatura pode-se concluir que as condições médicas do paciente, hábitos sociais e parafuncionais, inexatidão do planejamento cirúrgico e protético, conhecimento técnico e científico do cirurgião-dentista, a falta de relacionamento interdisciplinar e deficiente cooperação do paciente no pós-operatório, podem estar relacionadas às complicações no tratamento reabilitador com implantes dentários(AU)


The objective of this study is to carry out a complete literature review to elucidate and evaluate the factors that lead to complications in implantology. The osseointegrated implantsimplants and their application in dentistry have revolutionized the oral rehabilitation of patients who need this treatment, be they total or partial edentulous in search of functional recovery and aesthetic satisfaction. Scientific research and a constant search for the magnification of this treatment, allowed the use of implant-enhanced rehabilitation as a predictable treatment method with a high success rate. However, like any treatment mode, complications and failures can also occur in implantology. the patient's medical conditions, social and parafunctional habits, inaccuracy of surgical and prosthetic planning, technical and scientific knowledge of the dental surgeon, lack of interdisciplinary relationship and poor patient cooperation in the postoperative, may be related to complications in rehabilitating treatment with dental implants(AU)


Subject(s)
Dental Implants , Dental Implants/adverse effects , Dental Implantation, Endosseous , Tobacco Use Disorder , Dental Prosthesis, Implant-Supported , Diabetes Mellitus , Diphosphonates , Peri-Implantitis , Mouth Rehabilitation
3.
Rev. Odontol. Araçatuba (Impr.) ; 42(2): 47-51, maio-ago. 2021.
Article in Portuguese | LILACS, BBO | ID: biblio-1283886

ABSTRACT

A Odontologia atual apresenta relevantes mudanças no processo de reabilitação oral. Com isso, a instalação de implantes osseointegrados, constituem uma importante ferramenta neste âmbito, pois permitem a devolução da função mastigatória, permitindo também que os pacientes tenham a estética recuperada. O presente trabalho tem como objetivo realizar uma revisão de literatura, sobre a importância de um planejamento prévio, chamado também de planejamento reverso, o mesmo aponta um maior sucesso no processo reabilitador, apresentando-se como uma técnica que busca facilitar e estudar a correta reabilitação do paciente, proporcionando uma melhor previsibilidade para o tratamento, a partir do momento em que se planeja a reabilitação oral protética antes mesmo de se pensar no processo cirúrgico de implantes osseointegrados. Conclui-se com esse trabalho que o sucesso do tratamento com implantes depende diretamente de um prévio plano de tratamento, independentemente da extensão da área edêntula, quando é realizado um planejamento reverso diminuiu-se a taxa de intercorrências, além de aumentar a taxa de sucesso no processo de reabilitação(AU)


Current Dentistry presents relevant changes in the oral rehabilitation process. As a result, the installation of osseointegrated implants is na important tool in this context, as it allows the return of lost teeth, also allowing patients to have their function and aesthetics recovered. For greater success of the rehabilitation process, reverse planning presents itself as a technique that seeks to facilitate the correct rehabilitation of the patient, allowing better predictability for the treatment from the moment that the prosthetic oral rehabilitation is planned before even thinking about the surgical process of osseointegrated implants. The success of treatment with implants depends directly on a properly planned treatment plan, regardless of the extent of the edentulous area. This paper aims to conduct a literature review on the importance of reverse planning in implantology(AU)


Subject(s)
Dental Prosthesis Design , Dental Implantation, Endosseous , Dental Implants , Dental Implantation, Endosseous/methods , Esthetics, Dental , Mouth Rehabilitation
4.
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
5.
Article in English | WPRIM | ID: wpr-887749

ABSTRACT

The correct implant site design and placement are the basic clinical techniques that must be known for implant restoration. For a long time, most implants have been placed by free hands, and the choice of site is mostly dependent on the accumulation of long-term experience of the surgeon. The selection of implant site guided by this experience analogy logic is often based on the surgeon's level of experience,which often makes it very easy to produce complications related to the implant restoration of the incorrect site. In contrast, a clinical program using digital guidance and real-time measurable verification has emerged based on the restoration-oriented implantation concept, which marks the formation of an accurate, measurable and verifiable whole-process digital implant prototype. Furthermore, from the perspective of surveying, the numerical requirements that digital implant restoration relies on are actually incomplete to the four elements of measurement, which leading to the doubts about its authenticity. This article will question the numbers in implant restoration, and conduct a preliminary demonstration, and propose a new reliable actual measurement and verification method of the correct location and the numerical requirements of the restoration space and a new clinical program that relies on numbers from the perspective of the evolution of digital restoration, guided implantology and actual measurement technology. And this article further discusses the current mainstream implant restoration technology based on experience analogy which cannot effectively support the whole process of digital implant restoration and provides a new logical cognitive basis for the final realization of the entire process of digital implant restoration.


Subject(s)
Computer-Aided Design , Dental Implantation, Endosseous , Dental Implants , Humans , Prosthodontics
6.
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
7.
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
8.
Article in Chinese | WPRIM | ID: wpr-878437

ABSTRACT

When design an implant restoration for edentulous patients, many doctors ignore the sufficiency of the interarch distance (vertical distance) or horizontal distance of the patient to accommodate the superstructure and restoration before designing the implant plan. However, the connotation of measuring the interarch distance or horizontal distance has not been clarified in clinical practice. It is often based on visual estimation after operation, and the decision-making path of implant restoration is inverted, resulting in many mistakes regarding the restoration after implantation. The main reason is the lack of standardized paths and practical methods to use before surgery. This article recommended initially establishing a maxillo-mandibular relationship based on natural teeth, old dentures, or new ones and then using the height and horizontal distance or angle of the target restorative space, which was easier to grasp as the measured index. The minimum vertical distance (including the height of the gingival surface and the bone surface) and the horizontal distance (or the angle from the bone or gingival surface to the proposed occlusal plane) should be measured before operation. A decision tree of edentulous jaw restoration guided by the values of the repair space was established based on the measured values. This article clarified the measuring points and planes and thus provided a quantitative relationship basis for the design of implant restoration.


Subject(s)
Dental Implantation, Endosseous , Dental Implants , Dental Prosthesis, Implant-Supported , Humans , Jaw, Edentulous , Mandible , Mouth, Edentulous
9.
J. appl. oral sci ; 29: e20200568, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1143153

ABSTRACT

Abstract Objective The aim of this study is to evaluate the new bone and connective tissue formation and the biomaterial remaining after maxillary sinus bone augmentation using 5 different bone substitutes. The osteocalcin immunolabeling was performed to demonstrate their calcification and the possibility of receiving dental implants. Methodology 40 patients underwent maxillary sinus bone augmentation and were divided in 5 groups: Group 1 with 8 maxillary sinuses were grafted with autogenous bone graft (AB); Group 2 with 8 maxillary sinuses grafted with bioactive glass (BG); Group 3 with 8 maxillary sinuses grafted with bioactive glass added to autogenous bone graft (BG + AB) 1:1; Group 4 with 8 maxillary sinuses grafted with Bio-Oss (BO) and Group 5 with 8 maxillary sinuses grafted with Bio-Oss added to autogenous bone graft (BO + AB) 1:1. Results In group AB, 37.8% of bone was formed in the pristine bone region, 38.1% in the intermediate and 44.5% in the apical region. In group BG, 43.6% was formed in the pristine bone, 37% in the intermediate and 49.3% in the apical region. In group BG + AB 1:1, 39.0% was formed in the pristine bone region, 34.8% in the intermediate and 36.8% in apical region. In group BO, 33.4% was formed in the pristine bone, 32.5% in the intermediate and 34.3% in the apical region. In group BO + AB 1:1, 32.8% was formed in the pristine bone, 36.1% in intermediate and 27.8% in the apical regions. The immunolabeling for osteocalcin showed an intensive staining for all groups, which could demonstrate the calcification of the bone formed. Conclusion This study showed that the groups evaluated formed a suitable lamellar bone in the maxillary sinus reconstruction after six months of bone healing, thus being indicated to receive dental implants.


Subject(s)
Humans , Osteogenesis , Dental Implants , Bone Transplantation , Bone Substitutes , Sinus Floor Augmentation , Dental Implantation, Endosseous , Maxillary Sinus/surgery , Maxillary Sinus/diagnostic imaging
10.
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
11.
Braz. dent. sci ; 24(3): 1-16, 2021. tab, ilus
Article in English | LILACS, BBO | ID: biblio-1281922

ABSTRACT

Objective: This study was performed to evaluate the use of PEEK abutments versus zirconium abutments with lithium disilicate superstructure on the esthetic acceptance and peri-implant clinical parameters. Zirconium abutments were found to have high surface roughness even after polishing. This causes a remarkable collapse of the soft tissue papilla that is a primary factor in the Pink Esthetic Score(PES), resulting in failed esthetic restoration in the anterior esthetic zone. Material and Methods:Twenty patients who needed a single implant restoration in the esthetic zone were included in this study. Eighteen patients completed screening, baseline, three-month, six-month, and twelve-month follow-up visits. At the screening visit, the patients were randomly allocated into two groups: Zirconia abutments (A) Group, and PEEK abutments (B) Group, both of which were restored with IPS e.max CAD superstructure. Patients Satisfaction was assessed by visual analogue scale (VAS). Pink esthetics score (PES), modified plaque index (mPI) and modified gingval index (mGI) were also assessed. Results: All implants were successfully osseo-integrated with a 100% survival rate over one year. Patient satisfaction was significantly higher for the PEEK group than the zirconium group. The pink esthetic score showed no statistical significance between both groups. The modified plaque index was significantly lower for the PEEK group than the zirconium group. The modified gingival index showed no statistical difference between both groups. Conclusion: PEEK revealed to be a versatile material to replace zirconium for implant abutments, due to its lower plaque affinity and higher patient satisfaction (AU)


Objetivo: Este estudo foi realizado para avaliar o uso de pilares PEEK versus pilares de zircônia com estrutura de dissilicato de lítio quanto a aceitação estética e parâmetros clínicos peri-implantares. Os pilares de zircônia apresentam alta rugosidade superficial, mesmo após o polimento. Isso causa um colapso notável da papila do tecido mole, que é um fator primário no índice estético rosa (Pink Esthetic Score - PES), resultando em falha na restauração estética na zona estética anterior. Materiais e Métodos:Vinte pacientes que precisavam de um implante unitário na zona estética foram incluídos neste estudo. Dezoito pacientes completaram a triagem, a consulta inicial e as visitas de acompanhamento de três, seis e doze meses. Durante a triagem, os pacientes foram aleatoriamente divididos em dois grupos: Grupo Pilares de Zircônia (A) e Grupo de Pilares PEEK (B), ambos foram restaurados com IPS e.max CAD. A satisfação dos pacientes foi avaliada pela escala visual analógica (VAS). O PES, o índice de placa modificado (mPI) e o índice gengival modificado (mGI) também foram avaliados. Resultados: Todos os implantes foram osseointegrados com sucesso, com uma taxa de sobrevivência de 100% ao longo de um ano. A satisfação do paciente foi significativamente maior para o grupo PEEK quando comparado com o grupo de pilares de zircônia. O índice da estética rosa não apresentou significância estatística entre os dois grupos. O índice de placa modificado foi significativamente menor para o grupo PEEK quando comparado com o grupo de pilares de zircônia. Conclusão: O PEEK revelou-se um material versátil para substituir a zircônia em pilares de implante, devido a sua menor afinidade de placa e maior satisfação do paciente. (AU)


Subject(s)
Humans , Dental Abutments , Patient Satisfaction , Dental Implantation , Dental Implantation, Endosseous
12.
Rev. Asoc. Odontol. Argent ; 108(3): 97-103, dic. 2020. ilus, graf
Article in Spanish | LILACS | ID: biblio-1147414

ABSTRACT

Objetivo: Evaluar el porcentaje de implantes oseointegrados colocados en pacientes edéntulos para la confección de sobredentaduras inferiores, en el marco de la formación de recursos humanos. Materiales y métodos: Se analizaron las historias clínicas de los pacientes que recibieron dos implantes dentales inferiores para la confección de sobredentaduras en el servicio de residentes de la carrera de Especialización en Cirugía y Traumatología Bucomaxilofacial de la Facultad de Odontología de la Universidad de Buenos Aires, entre agosto de 2012 y diciembre de 2018. Se consideraron para el análisis el porcentaje de implantes oseointegrados y su relación con el tipo de operador (docente o residente), la situación del reborde óseo y el hábito de fumar. Resultados: De los 176 implantes colocados en 88 pacientes (edad promedio = 67 años), a los 3-4 meses el 98% (IC95: 94-99%) se hallaba oseointegrado. No se encontró una relación estadísticamente significativa entre el tipo de operador y el fracaso (P>0,99) Conclusión: En un servicio de formación, la tasa de éxito, evaluada en la segunda cirugía, de dos implantes dentales colocados en el maxilar inferior para sobredentaduras fue de 98%. No se hallaron diferencias entre los resultados logrados por residentes y docentes del servicio (AU)


Aim: To evaluate the percentage of osseointegrated im- plants placed in edentulous patients to restore with mandib- ular overdentures, within the post graduate dental training framework. Materials and methods: Medical records of patients who received two dental implants in the mandible for the placement of overdentures in the resident clinic of the special- ization career in Oral and Maxillofacial Surgery and Trauma- tology from the Facultad de Odontología de la Universidad de Buenos Aires, between August 2012 and December 2018. The percentage of osseointegrated implants was analysed, and the association with the variables: operator (teacher or resident), mediate or immediate placement, and smoking. Results: 176 implants were placed in 88 patients with an average age of 67 years old. 98% (IC95: 94-99%) of the implants were osseointegrated at 3-4 months. No statistically significant association was detected between the type of oper- ator and implant failure (P>0.99). Conclusion: In the teaching dental training clinic, the success rate, evaluated at the second implant stage surgery, of two dental implants placed in the mandibule for overden- tures was 98%. No differences were found between the results achieved by residents and teachers (AU)


Subject(s)
Humans , Male , Female , Aged , Mouth, Edentulous , Dental Implantation, Endosseous , Denture, Overlay , Education, Dental, Graduate , Argentina , Schools, Dental , Data Interpretation, Statistical , Retrospective Studies , Osseointegration , Treatment Outcome
13.
Rev. Asoc. Odontol. Argent ; 108(3): 129-137, dic. 2020. ilus, tab
Article in Spanish | LILACS | ID: biblio-1147924

ABSTRACT

Objetivo: Presentar el uso de la cirugía guiada para la resolución quirúrgico-protética de un caso clínico con colocación de implantes de longitud estándar (>7 mm) en un maxilar inferior atrófico, sin regeneración ósea guiada. Caso clínico: Una paciente que requería terapia con implantes en sectores posteroinferiores se presentó en la Cátedra de Odontología Integral Adultos de la Facultad de Odontología de la Universidad de Buenos Aires. Primero se realizó una tomografía computarizada de haz cónico del maxilar inferior para evaluar la disponibilidad ósea. La planificación se efectuó siguiendo un protocolo digital a fin de optimizar la selección de los implantes y su instalación en función de la futura rehabilitación protética y el tejido óseo disponible. Después se escanearon ambos maxilares y el registro intermaxilar; estas imágenes ­junto con las correspondientes a la tomografía (DICOM)­ fueron importadas como archivos (STL) a un software específico de diseño para determinar digitalmente la posición 3D ideal de los implantes y diseñar una guía quirúrgica de precisión. Luego se realizó la cirugía de instalación de los implantes con la guía quirúrgica, y finalmente los implantes fueron rehabilitados por medio de coronas cemento-atornilladas. Conclusión: El uso de la cirugía guiada permitió optimizar el tejido óseo disponible para la instalación de implantes en función de la futura rehabilitación protética (AU)


Aim: To present the use of guided surgery for the prosthetic resolution of a clinical case with placement of implants of standard length (>7 mm) in an atrophic posterior mandible, with no need of bone regeneration. Clinical case: A patient who required implants in the posterior sectors of the mandible attended to the department of Odontología Integral Adultos, Facultad de Odontología, Universidad de Buenos Aires, Argentina. A dental cone beam computed tomography (CBCT scan) of the lower jaw was done to assess bone availability and was decided to perform guided surgery for accurate implant placement. Both maxillaries and intermaxillary occlusal registration were scanned and imported into files (STL) together with those of the CBCT scan (DICOM) into specific design software. Following the digital protocol using a surgical guide the implants were placed and then restored with cemented-screwed crowns. Conclusion: Guided surgery allowed planning implant placement, guided by the final position of the prosthetic restoration, and optimizing the available bone (AU)


Subject(s)
Humans , Female , Aged , Alveolar Bone Loss/surgery , Surgery, Computer-Assisted , Dental Implantation, Endosseous , Mandible , Argentina , Schools, Dental , Bone Regeneration , Denture, Partial, Fixed , Cone-Beam Computed Tomography , Mouth Rehabilitation
14.
Int. j. odontostomatol. (Print) ; 14(4): 602-609, dic. 2020. tab, graf
Article in Spanish | LILACS | ID: biblio-1134546

ABSTRACT

RESUMEN: Comparar mediante una revisión sistemática los resultados clínicos de los procedimientos de cirugía plástica periodontal/periimplantar (CP) con injerto de tejido blando autógeno (ITB) obtenido del área lateral del paladar (ALP) versus del área de la tuberosidad (AT). Se realizó una búsqueda electrónica de ensayos clínicos en la base de datos Medline/Pubmed, Cochrane y las revistas de Periodoncia e Implantes de mayor impacto según la Web of Science, para hallar artículos publicados hasta abril del 2020. Se valoró el riesgo de sesgo de los artículos añadidos según el manual Cochrane Versión 5.1.0 para ensayos clínicos aleatorizados y la escala Newcastle-Ottawa para ensayos clínicos controlados. De una muestra inicial de 930 artículos, cuatro ensayos clínicos (tres aleatorizados) fueron incluidos en el presente estudio, donde se realizaron un total de 87 CP alrededor de piezas e implantes dentales, de las cuales 42 cirugías fueron realizadas con ITB del ALP y 45 cirugías con ITB del AT, se evaluó los resultados desde las 8 semanas hasta los 12 meses. No se hallaron diferencias estadísticamente significativas en los resultados clínicos entre ambos grupos, se mejoró el fenotipo gingival en la zona receptora para el grupo que obtuvo el ITB del AT y el nivel del dolor del sitio donador del AT fue menor en las dos primeras semanas que el sitio donante del ALP. Los estudios incluidos manifestaron un bajo riesgo de sesgo en promedio. Ambas áreas donantes de injerto de tejido blando proporcionan resultados clínicos similares, el injerto del área de la tuberosidad mejora el fenotipo gingival de la zona receptora y reduce el dolor post operatorio en las primeras semanas del sitio donador.


ABSTRACT: The objective of the study was to compare, through a systematic review, the clinical results of periodontal / peri-implant plastic surgery (CP) procedures with autogenous soft tissue graft (ITB) obtained from the lateral palate area (ALP) versus the tuberosity area (AT). We conducted an electronic search of clinical trials in the Medline/Pubmed, Cochrane database and the journals of Periodontics and Implants with the greatest impact according to the Web of Science, to find articles published until April 2020. The risk of bias of the articles added was assessed according to the Cochrane Manual Version 5.1.0 for randomized clinical trials and the Newcastle-Ottawa scale for controlled clinical trials. From the initial sample of 930 articles, four clinical trials were included (three randomized) in the present study, where a total of 87 PC were performed around dental pieces and implants, of which 42 surgeries were performed with ITB of the ALP and 45 surgeries with ITB of the AT, the results were evaluated from the 8 weeks to 12 months. No statistically significant differences were found in the clinical results between the two groups, the gingival phenotype in the receiving area was improved for the group that obtained the ITB of the AT and the level of pain at the donor site was lower in the first two weeks than the ALP donor site. The studies showed a lowrisk of bias on average. Both soft tissue graft donor areas provide similar clinical results, grafting the tuberosity area improves the gingival phenotype of the recipient area and reduces post-operative pain of the donor site in the first few weeks.


Subject(s)
Humans , Dental Implants/statistics & numerical data , Oral Surgical Procedures , Dental Implantation, Endosseous , Palate , Transplantation, Autologous , Selection Bias , Tissue Transplantation , Connective Tissue/transplantation , Gingival Recession
15.
Int. j. odontostomatol. (Print) ; 14(4): 678-684, dic. 2020. graf
Article in English | LILACS | ID: biblio-1134557

ABSTRACT

ABSTRACT: The present study aims to describe, through a case report, the functioning of bone grafts, where they are obtained including bone banks and the different dental areas in which it is used. A 50-year.old female patient HMR, sought the postgraduate college of dentistry CECAPE for oral rehabilitation. The initial clinical examination revealed the absence of several dental elements in both the maxilla and mandi ble, bone resorption in the entire maxillary extension where there was an absence of elements in the anterior region and the presence of a torus in the palatal region. Initial tomographic examinations of the maxilla and mandible were performed, looking for the best conduct regarding the diagnosis and planning of the case. After the clinical and radiographic examinations was performed, and the diagnosis was reached, it was determined as a treatment for oral rehabilitation of the maxilla, bone grafting and an Implant-supported Removable Partial Prosthesis and for the mandible a Dento-muco-supported Removable Partial Prosthesis. Dental treatments and oral rehabilitation from the use of bone tissues and bone grafting have become commonly used. Procedures that would normally lead to failure started to increase the percentage of successes due to the use of these biomaterials. The use of bone grafts in dentistry has been shown to be a very effective and useful resource, considering its great applicability in bone reconstructions in different areas of dentistry.


RESUMEN: El presente estudio tiene como objetivo describir a través de un informe de caso, el funcionamiento de los injertos óseos, donde se obtienen, incluidos los bancos de huesos y las diferentes áreas dentales en las que se emplea. Una paciente HMR, de 50 años de edad, asistió el centro universitario de posgrado CECAPE para rehabilitación oral. El examen clínico inicial reveló la ausencia de varios dientes tanto en el maxilar como en la mandíbula, la resorción ósea en toda la extensión maxilar donde había ausencia de dientes en la región anterior y la presencia de un torus en la región palatina. Se realizaron exámenes tomográficos iniciales del maxilar y mandíbula, buscando la mejor conducta con respecto al diagnóstico y la planificación del caso. Después de los exámenes clínicos y radiográficos realizados y el diagnóstico listo, se determinó como un tratamiento para la rehabilitación oral del maxilar, el injerto óseo y una prótesis removible implantosoportada y para la mandíbula una prótesis parcial removible dento-muco-soportada. Los tratamientos dentales y la rehabilitación oral a partir del uso de tejidos óseos y el injerto óseo se han utilizado comúnmente. Los procedimientos que normalmente conducirían al fracaso comenzaron a aumentar el porcentaje de éxitos debido al uso de estos biomateriales. Se ha demostrado que el uso de injertos óseos en odontología es un recurso muy eficaz y útil, considerando su gran aplicabilidad en las reconstrucciones óseas en diferentes áreas de la odontología.


Subject(s)
Humans , Female , Middle Aged , Bone Transplantation/methods , Dental Implantation, Endosseous/methods , Bone-Implant Interface/diagnostic imaging , Tomography, X-Ray Computed , Mandible/diagnostic imaging , Mouth Rehabilitation
16.
Rev. ADM ; 77(6): 321-328, nov.-dic. 2020. ilus
Article in Spanish | LILACS | ID: biblio-1151475

ABSTRACT

La periimplantitis se define como la patología inflamatoria e irreversible que afecta al hueso periimplantario y le hace perder soporte y función al implante según la definición del European Workshop on Periodontology (EWOP). La prevalencia estimada de la periimplantitis es de 28 a 77%. Los diferentes protocolos de abordaje de la periimplantitis nos ofrecen diversas posibilidades: destoxificación de la superficie y regeneración, limpieza mecánica y resección del tejido inflamado, extracción del implante, entre otros. El principal problema de los tratamientos regenerativos es limpiar y desintoxicar correctamente la superficie del implante expuesto, ya que al tratarse de superficies generalmente muy rugosas, las bacterias del medio bucal las colonizan con mucha facilidad y es prácticamente imposible eliminar por completo el biofilm. El protocolo de tratamiento para la periimplantitis se basa en un algoritmo de tratamiento, en el que se retiran los implantes gravemente afectados por periimplantitis de forma atraumática, lo cual garantiza la conservación del lecho al 100% al no retirarse volumen óseo, y cuándo deben utilizarse las trefinas, pues las que se utilizan en el protocolo únicamente rompen la unión ósea de los primeros milímetros sin retirarlo. En el siguiente caso clínico mostramos el retratamiento de un caso de periimplantitis en el que se ha realizado una nueva rehabilitación implantosoportada (AU)


Periimplantitis is defined as the inflammatory and irreversible pathology that affects the peri-implantary bone and causes it to lose support and function to the implant as defined by the European Workshop on Periodontology (EWOP). The estimated prevalence of periimplantitis figures ranging from 28 to 77%. The different protocols for approaching periimplantitis offer different possibilities: detoxification of the surface and re-generation, mechanical cleaning and resection of inflamed tissue and extraction of the implant mainly. The main problem with regenerative treatments is to correctly clean and detoxify the surface of the exposed implant, since as these are generally highly rough surfaces, bacteria in the oral environment colonise them very easily and it is practically impossible to completely eliminate the biofilm. This treatment algorithm, in which implants severely affected by periimplantitis are removed atraumatically, guarantees the conservation of the bed at 100% since no bone volume is removed and trephines must be used, since those used in the protocol only break the bone union of the first few millimetres, without removing it. In the following clinical case, we show the re-treatment of a case of peri-implantitis where a new implant-supported rehabilitation has been performed (AU)


Subject(s)
Humans , Male , Aged , Osseointegration , Minimally Invasive Surgical Procedures/methods , Dental Implantation, Endosseous , Peri-Implantitis/therapy , Bone Regeneration , Algorithms , Clinical Protocols , Dental Prosthesis, Implant-Supported , Retreatment , Mouth Rehabilitation/methods
17.
Braz. dent. j ; 31(6): 650-656, Nov.-Dec. 2020. tab, graf
Article in English | LILACS, BBO | ID: biblio-1132343

ABSTRACT

Abstract Patients with a history of cancer are increasingly common in the dental office. Treating cancer patients requires a multidisciplinary team, which should include the dentist, in order to control the complications that occur in the oral cavity and also to recover the patient undergoing treatment in any of its types: surgical, medical, radiotherapeutic, or its possible combinations. Dental implants can be a safe and predictable treatment option for prosthetic rehabilitation. The aim of this paper is to describe in retrospect the success rate of osseointegrated implants in oncology and non-oncology patients placed by the Master of Dentistry in Oncology and Immunocompromised Patients, as well as the Master of Medicine, Surgery and Oral Implantology of the University of Barcelona Dental Hospital, between July 2011 and March 2016. 466 patients were reviewed, with a total of 1405 implants placed, considering the oncological history of the patients and the implant success rate. The total success rate in the concerned period was 96.65%. When comparing cancer patients with healthy ones, the success rate has been 93.02% in the first case, and 97.16% in the latter. According to the literature review, our results encourage implant placement in cancer patients, it is important to recognize that this is an analysis of a complex care pathway with a large number of confounding variables. However, the findings should not be considered as generalizable.


Resumo Pacientes com histórico de câncer são cada vez mais comuns no consultório odontológico. O tratamento de pacientes com câncer requer uma equipe multidisciplinar, que deve incluir o dentista, a fim de controlar as complicações que ocorrem na cavidade oral e também para tratar o paciente com qualquer uma das modalidades de tratamento: cirúrgica, médica, radioterápica ou suas possíveis combinações. Os implantes dentários podem ser uma opção de tratamento segura e previsível para reabilitação protética. O objetivo deste artigo é propor um estudo retrospectivo sobre a taxa de sucesso de implantes osseointegrados em pacientes oncológicos e não oncológicos atendidos no Mestrado em Odontologia em Pacientes Oncológicos e Imunodeprimidos, bem como no Mestrado em Medicina, Cirurgia e Implantodontia Oral do Hospital Odontológico da Universidade de Barcelona, entre julho de 2011 e março de 2016. Foram revisados 466 pacientes, com um total de 1405 implantes instalados, considerando o histórico oncológico dos pacientes e a taxa de sucesso do implante. Resultados: A taxa de sucesso total no período em questão foi de 96,65%. Na comparação entre pacientes com câncer e saudáveis, a taxa de sucesso foi de 93,02% no primeiro caso e 97,16% no segundo. Conclusão: De acordo com a revisão da literatura, nossos resultados encorajam a colocação de implantes em pacientes com câncer, é importante reconhecer que esta é uma análise complexa que requer cuidado devido ao grande número de variáveis. No entanto, os resultados não devem ser considerados de forma generalizada.


Subject(s)
Humans , Dental Implants , Neoplasms , Retrospective Studies , Treatment Outcome , Dental Prosthesis, Implant-Supported , Dental Restoration Failure , Dental Implantation, Endosseous
18.
Braz. dent. j ; 31(4): 368-373, July-Aug. 2020. tab, graf
Article in English | LILACS, BBO | ID: biblio-1132318

ABSTRACT

Abstract The aim of this study was to clinically and radiographically compare extra short and standards implants. Forty-two implants were installed in 10 selected patients. They received prosthetic loading only after the conventional waiting time for osseointegration and the prostheses were made ferulized. Radiographic shots were performed to evaluate vertical and horizontal bone losses at times T1 (prosthetic installation), T2 (6 months follow-up) and T3 (12 months follow-up). Biological parameters such as bone level around the implants (CBL) were evaluated, CBL alteration (CBLC), total crown length (TCL) and implant/crown ratio (ICR) were digitally calculated. All implants included in the study were submitted to the analysis of the implant stability quotient (ISQ) at the time of implant installation (T0) and at 12 months of prosthetic function (T3). Data were statistically tested. The ICR was higher in the test group than in the control group (p<0.0001). The CBL measurements at the beginning of the study were 0.21±0.19 mm and 0.32±0.38 mm and at 12 months 0.65±0.24 mm and 0.87±0.34 mm, respectively in the test and control groups. CBLCs and CBL were similar at all times (p>0.05). No correlation was found between CBLC and ICR parameters, as well as between ISQ and implant length. We may conclude that standards and extra short implants can provide similar clinical results in prosthetic rehabilitation of the atrophic jaw over 12 months of follow-up.


Resumo O objetivo deste estudo foi comparar clínica e radiograficamente implantes extra curtos e padrões. Quarenta e dois implantes foram instalados em 10 pacientes selecionados. Eles receberam carga protética somente após o tempo de espera convencional para a osseointegração e as próteses foram feitas ferulizadas. As imagens radiográficas foram realizadas para avaliar as perdas ósseas verticais e horizontais nos tempos T1 (instalação protética), T2 (6 meses de acompanhamento) e T3 (12 meses de acompanhamento). Parâmetros biológicos como nível ósseo ao redor dos implantes (CBL) foram avaliados, alteração CBL (CBLC), comprimento total da coroa (TCL) e relação implante / coroa (ICR) foram calculados digitalmente. Todos os implantes incluídos no estudo foram submetidos à análise do quociente de estabilidade do implante (ISQ) no momento da instalação do implante (T0) e aos 12 meses de função protética (T3). Os dados foram testados estatisticamente. A ICR foi maior no grupo teste do que no grupo controle (p<0,0001). As medidas de CBL no início do estudo foram de 0,21±0,19 mm e 0,32±0,38 mm e em 12 meses 0,65±0,24 mm e 0,87±0,34 mm, respectivamente nos grupos teste e controle. CBLCs e CBL foram semelhantes em todos os momentos (p>0,05). Não foi encontrada correlação entre os parâmetros CBLC e ICR, bem como entre o ISQ e o comprimento do implante. Podemos concluir que padrões e implantes extra curtos podem fornecer resultados clínicos semelhantes na reabilitação protética da mandíbula atrófica ao longo de 12 meses de acompanhamento.


Subject(s)
Humans , Dental Implants , Dental Implantation, Endosseous , Osseointegration , Dental Prosthesis Design , Crowns
19.
Int. j. odontostomatol. (Print) ; 14(2): 230-235, June 2020. tab, graf
Article in Spanish | LILACS | ID: biblio-1090679

ABSTRACT

La estabilidad primaria es un requisito importante para la supervivencia y éxito de los implantes durante la osteointegración. En los últimos años, los implantes inmediatos postextracción han demostrado ser una opción de tratamiento exitosa y predecible para la reposición de dientes con mal pronóstico, pero surge la duda de si dichos implantes alcanzan valores de estabilidad primaria comparables a aquellos colocados en hueso maduro. Comparar la estabilidad primaria de implantes inmediatos colocados en alveolos postextracción con la de implantes colocados en hueso maduro. Se llevó a cabo un estudio clínico retrospectivo, con los datos recogidos sobre 175 implantes, colocados en 175 pacientes. Todos los implantes colocados pertenecían al modelo Essential Cone (Klockner Implant System) y se dividieron en dos grupos: implantes inmediatos (Grupo A, n=31) e implantes colocados en hueso maduro (Grupo B, n=144). La estabilidad primaria de todos los implantes se midió mediante torque de inserción y análisis de frecuencia de resonancia con Osstell ISQ. No se encontraron diferencias estadísticamente significativas respecto a la estabilidad medida a través del torque de inserción (26,29+10,07 Vs 25,76+9,72 N/cm) pero sí que se encontraron diferencias significativas en la medida de la estabilidad primaria mediante AFR, siendo inferiores los valores correspondientes a los implantes colocados en los alveolos post exodoncia (60,74 ± 6,17 en sentido VL y 62,19 ± 7.64 en sentido MD frente a 68,34 ± 6.26 en sentido VL y 69,29 ± 7.98 en sentido MD obtenidos en los implantes colocados en hueso maduro). El torque de inserción de los implantes inmediatos es similar al de los implantes colocados en hueso maduro, pero sus valores ISQ son significativamente inferiores, lo que demuestra un mayor grado de micromovimiento, y por consiguiente, un mayor riesgo de fracaso durante el período de osteointegración.


Primary stability is an important requirement for the survival and success of implants during osseointegration. In recent years, immediate post-extraction implants have proven to be a successful and predictable treatment option for the replacement of teeth with a poor prognosis, but the question arises as to whether these implants reach primary stability values comparable to those placed in mature bone. The objective of the study was to compare the primary stability of immediate implants placed in post-extraction alveoli with that of implants placed in mature bone. A retrospective clinical study was carried out, with data collected on 175 implants, placed in 175 patients. All implants placed belonged to the Essential Cone model (Klockner Implant System) and were divided into two groups: immediate implants (Group A, n = 31) and implants placed in mature bone (Group B, n = 144). The primary stability of all implants was measured by insertion torque and resonance frequency analysis with Osstell ISQ. No statistically significant differences were found regarding the stability measured through the insertion torque (26.29 + 10.07 Vs 25.76 + 9.72 N / cm) but significant differences were found in the measurement of primary stability by means of AFR, the values corresponding to implants placed in the post-exodontic alveoli being lower (60.74 ± 6.17 in the VL direction and 62.19 ± 7.64 in the MD direction versus 68.34 ± 6.26 in the VL direction and 69.29 ± 7.98 in the MD direction obtained in implants placed in mature bone). The insertion torque of immediate implants is similar to that of implants placed in mature bone, but their ISQ values are significantly lower, which demonstrates a higher degree of micromotion, and therefore, a greater risk of failure during the period of osseointegration.


Subject(s)
Dental Prosthesis Retention , Dental Implantation, Endosseous/methods , Tooth Extraction , Vibration , Case-Control Studies , Retrospective Studies , Osseointegration , Torque , Immediate Dental Implant Loading , Resonance Frequency Analysis
20.
Int. j. odontostomatol. (Print) ; 14(2): 242-248, June 2020. graf
Article in Spanish | LILACS | ID: biblio-1090681

ABSTRACT

Los aumentos óseos previo a la instalación de implantes son cada vez mas utilizados y el diseño de nuevas estrategias para disminuir la morbilidad deben ser considerados. El objetivo de esta investigación fue definir el aumento óseo generado con la técnica "tent pole" en sector de mandíbula posterior. Se diseño un estudio longitudinal, prospectivo para estudiar la técnica. Se incluyeron sujetos con ancho óseo no mayor a 4 mm en el sector posterior y con altura no menor a 9 mm desde el margen superior del conducto alveolar inferior. Se realizaron cirugías bajo anestesia local realizando un acceso quirúrgico; se instalaron de 2 a 4 tornillos de osteosíntesis manteniendo 4 mm del tornillo extraóseo para luego reconstruir con biomaterial alógeno y L-PRF en conjunto con una membrana biológica absorbible; después de 4 meses se realizaron las re entradas estableciendo con tomografía computadorizada de haz cónico las ganancias óseas generadas. Fueron operados 14 sujetos con 27 sitios quirúrgicos; en todos los casos se pudo realizar la instalación de implantes a los 4 meses. En la evaluación inicial, el ancho óseo observado estaba entre 1,2 y 4,0 mm (promedio de 2,95 ± 0,75 mm); después de 4 meses de realizado el aumento horizontal el ancho observado fue de 3,79 y 10,05 mm (promedio de 7,15 mm ± 1,87 mm), confirmando una ganancia ósea promedio de 4,2 ± 1,26 mm. La diferencia obtenida fue significativa (p< 0,05). Se puede concluir que la técnica "tent pole" aplicada en esta investigación es predecible en el aumento óseo y aplicable para la rehabilitación sobre implante.


Bone augmentation prior to implant placement, is among strategies that should be considered to reduce morbidity rates in these procedures. The objective of this research was to define bone augmentation generator using the "tent pole " technique in the posterior jaw. A longitudinal, prospective study was designed, and subjects were included with ridge width no greater than 4 mm, height no less than 9 mm from the upper margin of the inferior alveolar canal. Surgeries were performed under local anesthesia for surgical approach; 2 to 4 osteosynthesis screws over ridge with 4 mm of the extra osseous screws were installed and were then regenerated, using allogeneic biomaterial and L-PRF together with an absorbable biological membrane. Re-entry was performed after four months and cone beam computed tomography analysis was used to confirm bone gain. Fourteen subjects were operated with 27 surgical sites; in all the cases, implant installation was possible at 4 months. In the initial evaluation, bone width observed was between 1.2 and 4.0 mm (average of 2.95 ± 0.75 mm); after 4 months of the horizontal increase, width was recorded at 3.79 and 10.05 mm (average of 7.15 mm ± 1.87 mm), confirming an average bone increase of 4.2 ± 1.26 mm. The difference obtained was significant (p <0.05). It can be concluded that the "tent pole" technique applied in this analysis is predictable in bone augmentation and applicable for implant rehabilitation.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Dental Implantation, Endosseous/methods , Alveolar Ridge Augmentation , Mandible/surgery , Prospective Studies , Longitudinal Studies , Bone Transplantation , Bone Substitutes , Cone-Beam Computed Tomography
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