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1.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 55(2): 86-92, 2020 Feb 09.
Artigo em Chinês | MEDLINE | ID: mdl-32074668

RESUMO

Objective: To investigate the influential factors related to the long-term effect of periodontal-orthodontic treatment in patients with aggressive periodontitis (AgP). Methods: A retrospective analysis was conducted in 25 AgP patients, who have received periodontal-orthodontic treatment in Peking University School and Hospital of Stomatology. Changes in the ratio of the residual alveolar bone height (RBH) was measured at three time points: baseline (T0), post orthodontic treatment (T1), and the last re-visit 3 years after orthodontic treatment (T2). Root abnormity was evaluated by observing periapical radiographs, and its relationship with alveolar bone loss after orthodontic treatment was analyzed. A multi-level analysis on factors related to the clinical outcome (alveolar bone height change) was performed. Results: Totally 693 teeth of 25 patients at T0 and T1 and 368 teeth of 14 patients at T2 were investigated. During the periodontal-orthodontic treatment, the RBH was mainly influenced by root abnormity (estimation value -2.392), tooth position (estimation value for upper teeth vs. lower teeth 3.139, and anterior teeth vs. posterior teeth -3.469) and the baseline RBH at T0 (estimation value -0.391) (P<0.05). Teeth with root abnormity, teeth in mandibular and anterior area, and teeth with higher RBH showed less change in T1-T0 RBH values. In the long-term follow-up, RBH was mainly influenced by tooth position (estimation value for upper teeth vs. lower teeth 3.735, and anterior teeth vs. posterior teeth -5.318), the baseline RBH and probing depth (PD) at T0. Teeth in mandibular and anterior area, teeth with higher RBH (estimation value -0.498) and PD (estimation value -1.594) (P<0.05) showed less change in T0-T2 RBH values. Conclusions: During orthodontic treatment, teeth with abnormal root, lower teeth, anterior teeth, and teeth with high RBH were unfavorable factors for bone gain. In the long-term observation, lower teeth, anterior teeth, teeth with high RBH and PD at first visit were unfavorable factors for bone gain.


Assuntos
Periodontite Agressiva/terapia , Má Oclusão/terapia , Dente/patologia , Perda do Osso Alveolar , Humanos , Ortodontia Corretiva , Estudos Retrospectivos
2.
Acta Odontol Scand ; 78(2): 118-125, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31509048

RESUMO

Objectives: To investigate the effectiveness of an upper removable appliance in the treatment of an anterior crossbite in term of quality of life, effectiveness, treatment time, long term stability and cost minimization.Design: Systematic reviewData source: A search strategy was implemented using both manual hand search and electronic databases, including Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, ScienceDirect, Scopus and Ebsco.Study eligibility criteria: Randomized controlled clinical trialsParticipants: Children in the early or late mixed dentition with an anterior crossbite affecting one or more incisors, and no underlying skeletal class III pattern.Interventions: Upper removable appliance compared with other orthodontic appliances.Study appraisal and synthesis: All potential articles were checked against the inclusion criteria independently, and in duplicate by two investigators. Risk of bias of eligible studies to be included in the final analysis was assessed independently by two authors using Cochrane risk of bias tool.Results: A total of 524 articles were identified in both manual and electronic searches as well as by checking the reference lists of the final articles to be included in the study. Only 7 reports of 3 RCTs met the inclusion criteria and thus were included in the final analysis. All but one of the 3 RCTs were judged to be of very low quality. No statistical methods were employed to combine the studies due to the heterogeneity of the studies.Conclusion: A fixed appliance was more cost-effective than a removable appliance in the correction of an anterior crossbite with a functional shift. There was no significant difference in terms of quality of life, pain intensity or long-term stability between the two appliances. On the other hand, both a removable appliance and cemented bite-pads were equally effective in the correction of an anterior dental crossbite without having any side effect.


Assuntos
Dentição Mista , Má Oclusão , Aparelhos Ortodônticos , Criança , Humanos , Má Oclusão/terapia , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto
3.
Eur J Orthod ; 42(1): 44-51, 2020 Jan 27.
Artigo em Inglês | MEDLINE | ID: mdl-31067324

RESUMO

OBJECTIVES: To evaluate the costs of quad-helix (QH) and removable expansion plate (EP) treatments performed either in specialist or general dentistry for the correction of unilateral posterior crossbite with functional shift in the mixed dentition. TRIAL DESIGN: Four-arm parallel group multicentre randomized controlled trial. MATERIALS AND METHODS: One hundred and ten patients with unilateral posterior crossbite with functional shift were recruited. The patients were randomized by an independent person not involved in the trial. The randomization used blocks of 20 and into the following four groups: QH treatments in specialist orthodontic clinics (QHS), QH treatments in general dentistry (QHG), EP treatments in specialist orthodontic clinics (EPS), and EP treatments in general dentistry (EPG). Blinding was accomplished of the outcome assessor and data analyst. A cost analysis was performed with reference to intention-to-treat (ITT), regarding direct costs, indirect costs, and societal costs (the sum of direct and indirect costs) for calculations of successful treatments alone and for retreatments when required. To determine which alternative has the lower cost, a cost-minimization analysis was undertaken, based on that the outcome of the treatment alternatives were broadly equivalent, so the difference between them reduces to a comparison of costs. RESULTS: In the QHS group, 28 of 28 patients were successfully corrected compared to 23 of 27 in the QHG group. Treatment with expansion plate was less successful: 18 of 27 patients in the EPS group and 18 of 28 in the EPG group. QH treatment performed in specialist orthodontic clinics had significantly lower costs than QH or EP treatment accomplished in general dentistry as well as EP treatments in specialist orthodontic clinics. LIMITATIONS: Costs depend on local factors and should not be directly extrapolated to other locations. CONCLUSION: Treatment of unilateral posterior crossbite in the mixed dentition is recommended to be performed by a specialist orthodontist using the QH appliance. TRIAL REGISTRATION: The trial was not registered.


Assuntos
Má Oclusão , Aparelhos Ortodônticos Removíveis , Controle de Custos , Custos e Análise de Custo , Odontologia , Dentição Mista , Economia em Odontologia , Humanos , Má Oclusão/terapia , Aparelhos Ortodônticos Removíveis/economia , Resultado do Tratamento
5.
Int. j. morphol ; 37(4): 1245-1251, Dec. 2019. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1040119

RESUMO

The aim of this study was to evaluate the effect of soft tissue thickness of upper lip on lip retraction in orthodonticaltreated females and identify the ratio of maxillary incisor retraction to upper lip retraction. Pre- and post-treatment lateral cephalograms of 100 adults were examined to measure the lip thickness in upper lip and establish the classification standard. All subjects were treated with 4 first premolar extractions followed by upper central incisors retraction. Pre- and post-treatment lateral cephalograms of 19 patients were reviewed to determine the changes of the upper lip and incisor positions through landmarks displacement. An independent-samples t test and one-way analysis of variance were performed. The correlations between maxillary incisor retraction and upper lip retraction were explored by the Pearson correlation method. P-values<0.05 were considered statistically significant. The lip thickness of adult male patients was greater than that of adult female patients. The average ratio of maxillary incisor retraction to upper lip repositioning was 1.6:1,1.9:1 and 2.2:1 in the thin lips group, normal lips group and thick lips group, respectively. Gender differences exist in the thickness of upper lip. Horizontal changes of the maxillary incisor showed a significant correlation to horizontal changes of the upper lip (P<0.001).There were negative correlations between the thickness of upper lip and the ratio between change in maxillary incisor protrusion and change in upper lip protrusion.


El objetivo de este estudio fue evaluar el efecto del grosor de los tejidos blandos del labio superior, sobre la retracción del labio en mujeres tratadas con ortodoncia e identificar la proporción de retracción del diente incisivo maxilar con respecto a la retracción del labio superior. Se examinaron cefalogramas laterales, previos y posteriores al tratamiento de 100 adultos, para medir el grosor del labio superior y establecer un estándar de clasificación. Todos los sujetos fueron tratados con 4 extracciones de los primeros premolares seguidas de retracción de los incisivos centrales superiores. Se revisaron los cefalogramas laterales, previos y posteriores al tratamiento de 19 pacientes, para determinar los cambios del labio superior y las posiciones de los incisivos a través del desplazamiento de los puntos de referencia. Se realizó una prueba t de muestras independientes y un análisis de varianza de una vía. Las correlaciones entre la retracción del incisivo maxilar y la retracción del labio superior se exploraron mediante el método de correlación de Pearson. Los valores de p<0,05 fueron considerados estadísticamente significativos. El grosor de los labios de los pacientes adultos masculinos fue mayor que el de las pacientes adultas. La relación promedio de la retracción del incisivo maxilar al reposicionamiento del labio superior fue de 1,6:1,1; 9:1 y 2,2:1 en el grupo de labios delgados, grupo de labios normales y grupo de labios gruesos, respectivamente. Existen diferencias de sexo en el grosor del labio superior. Los cambios horizontales del incisivo maxilar mostraron una correlación significativa con los cambios horizontales del labio superior (P<0,001). Hubo correlaciones negativas entre el grosor del labio superior y la relación entre el cambio en la protuberancia del incisivo maxilar y el cambio en la protrusión del labio superior.


Assuntos
Humanos , Masculino , Feminino , Adulto , Técnicas de Movimentação Dentária , Tecido Conjuntivo/anatomia & histologia , Lábio/anatomia & histologia , Ortodontia , Cefalometria , Má Oclusão/terapia
6.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 54(12): 793-797, 2019 Dec 09.
Artigo em Chinês | MEDLINE | ID: mdl-31874476

RESUMO

With the improvement of people's living standards and oral health education, the demand for orthodontic treatment is increasing. The comprehensive goal of orthodontic treatment is not only to obtain esthetic dentition and appearance, but also to obtain oral health, general health and mental and psychological health. Therefore, how to effectively prevent the risks in orthodontic treatment is particularly important, and it is also an important content that orthodontists must master. In this paper, the prevention of related risks in orthodontic treatment was discussed.


Assuntos
Assistência Odontológica , Ortodontia Corretiva , Gestão de Riscos , Estética Dentária , Humanos , Má Oclusão/terapia
7.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 54(12): 798-802, 2019 Dec 09.
Artigo em Chinês | MEDLINE | ID: mdl-31874477

RESUMO

Clear aligner, as a transparent and removable appliance, offers an alternative to conventional fixed appliance to patients with high demands for esthetics and comfort. Meanwhile, the rapid development of materials and techniques has made clear aligner more widely used in orthodontics. However, there are still several concerns and risks in clinical practice of clear aligners, which may result in unfavorable outcomes. Herein, we have discussed the clinical risks of clear aligner therapy, and provided some targeted strategies, in order to promote the clinical application of clear aligners.


Assuntos
Má Oclusão/terapia , Desenho de Aparelho Ortodôntico , Aparelhos Ortodônticos Removíveis , Assistência Odontológica , Estética Dentária , Humanos
8.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 54(12): 803-807, 2019 Dec 09.
Artigo em Chinês | MEDLINE | ID: mdl-31874478

RESUMO

Facial aesthetic defect is obviously different from facial aesthetic standard. Orthodontic treatment may expose or even magnify other facial aesthetic defects while solving patients' main problems. There are many aesthetic traps in facial bone structure, soft tissue and teeth. Orthodontists should comprehensively recognize patients' dentofacial aesthetic defects. When solving major problems, we should keep an eye on the changes of minor problems and other uncontrollable factors. Potential risks should be clearly recognized and prevented.


Assuntos
Estética Dentária , Má Oclusão/terapia , Ortodontia Corretiva , Gestão de Riscos , Assistência Odontológica , Humanos
9.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 54(12): 808-814, 2019 Dec 09.
Artigo em Chinês | MEDLINE | ID: mdl-31874479

RESUMO

Temporomandibular joint (TMJ) related signs and symptoms are frequently found in adolescent and adult orthodontic patients. TMJ health has long been considered important in orthodontic treatment for many decades, and routine screening and management of TMJ problems should be emphasized in orthodontic population. This paper was to review the TMJ problems in orthodontic patients and to set the strategy in clinical orthodontics.


Assuntos
Má Oclusão/terapia , Ortodontia Corretiva , Transtornos da Articulação Temporomandibular/etiologia , Humanos , Gestão de Riscos , Articulação Temporomandibular/fisiopatologia
10.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 54(12): 851-854, 2019 Dec 09.
Artigo em Chinês | MEDLINE | ID: mdl-31874487

RESUMO

Space reduction after the premature loss of the second primary molars is one of the important factors affecting the occurrence of malocclusion, often increasing the demand for orthodontic treatment. It has great significance to select and apply appropriate appliances to maintainthe space soon after the premature loss of the second primary molars. The space should be maintained until the adjacent teeth and the successors erupt successfully. This review summarizes the selection and clinical application of the space maintainer for the premature loss of the second primary molars in different periods, to improve dentists' awareness of the importance of space maintainers and to provide advises for clinical choices.


Assuntos
Má Oclusão/terapia , Dente Molar , Mantenedor de Espaço em Ortodontia , Dente Decíduo , Humanos
11.
Niger J Clin Pract ; 22(11): 1530-1538, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31719274

RESUMO

Background: Bimaxillary protrusion is a common dentofacial condition associated with proclination of maxillary and mandibular incisors in relation to the dental and cranial bases resulting in soft tissue procumbency. The present retrospective study aimed to investigate dental and soft tissue profile changes using cephalometric analysis to evaluate bimaxillary protrusion patients after extraction of the first four premolars and subsequent retraction of the anterior teeth. Materials and Methods: Pre-treatment and post-treatment cephalometric radiographs of 46 Saudi patients (16 males and 30 females), 18-30 years of age with bimaxillary protrusion, were selected based on inclusion criteria. Dental and soft tissue landmarks were traced using the Dolphin® imaging software and statistically analyzed with SPSS® 21 software. Results: The upper and lower incisors retroclined by a mean value of 9.6° and 9.65°, respectively, and an average distance of 4.1 mm. The level of maxillary incisor exposure was reduced by approximately 1.1 mm after treatment. A mean increase of 6.6° in the nasolabial angle was also observed. Multiple regression analysis showed that retraction of both upper and lower incisors by 1 mm would result in a 0.44 mm retraction of the upper and lower lips. Conclusion: A statistically significant increase in the nasolabial angle and upper lip length was found in relation to upper and lower incisor retraction and retroclination. A significant reduction was also evident in the post treatment upper incisor exposure, facial convexity angle and mentolabial sulcus depth.


Assuntos
Cefalometria/métodos , Face/anatomia & histologia , Incisivo/anormalidades , Má Oclusão/terapia , Extração Dentária , Adolescente , Adulto , Dente Pré-Molar/cirurgia , Feminino , Humanos , Incisivo/diagnóstico por imagem , Lábio/anatomia & histologia , Masculino , Má Oclusão/etnologia , Maxila , Aparelhos Ortodônticos , Radiografia , Estudos Retrospectivos , Adulto Jovem
12.
Am J Orthod Dentofacial Orthop ; 156(3): 391-400, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31474269

RESUMO

INTRODUCTION: Orthodontic traction of a maxillary impacted canine (MIC) increases the orthodontic treatment time. Therefore, the objective of this study was to evaluate the influence of MIC characteristics and factors associated with orthodontic treatment on the duration of active orthodontic traction. METHODS: This follow-up and retrospective study included 45 MICs orthodontically tractioned into the occlusal plane with the use of a standardized protocol. MIC characteristics, including type, sector, side, location, height, and complexity of impaction, as well as α and ß angles and canine root length and area were measured. Likewise, factors associated with orthodontic treatment, including sex, age, malocclusion, premolar extractions, previous incisor root resorption, ANB, APDI, and SNA angles, and PNS-ANS distance were also evaluated. The statistical analysis included multiple linear regressions to estimate the influence of all variables on the duration of traction (α = 0.05). RESULTS: Sex had significant influence (P = 0.027) on the time of traction; in female patients, the time was 2.05 months more than in male patients. Bilateral impaction treatment increased the time by 2.74 months compared with unilateral cases (P = 0.001). Traction of bicortically centered impacted canines increased the duration of traction by 2.85 months (P = 0.001). Finally, the traction time increased in 2.35 months (P = 0.046) when the impaction sectors were 4 or 5 (close to the midline). CONCLUSIONS: The duration of active orthodontic traction of MIC is mainly influenced by sex, bilateral type, bicortically centered location, or when MIC is located in sector 4 or 5 close to midline, increasing the traction time by some months.


Assuntos
Dente Canino/cirurgia , Maxila/cirurgia , Ortodontia Corretiva/métodos , Dente Impactado/complicações , Dente Impactado/terapia , Adolescente , Dente Canino/diagnóstico por imagem , Feminino , Seguimentos , Humanos , Incisivo , Masculino , Má Oclusão/classificação , Má Oclusão/terapia , Maxila/diagnóstico por imagem , Procedimentos Cirúrgicos Bucais , Procedimentos de Ancoragem Ortodôntica/instrumentação , Procedimentos de Ancoragem Ortodôntica/métodos , Aparelhos Ortodônticos Fixos , Ortodontia Corretiva/instrumentação , Avaliação de Processos e Resultados em Cuidados de Saúde , Planejamento de Assistência ao Paciente , Radiografia Dentária , Estudos Retrospectivos , Reabsorção da Raiz/complicações , Fatores Sexuais , Fatores de Tempo , Erupção Dentária , Raiz Dentária/anatomia & histologia , Raiz Dentária/diagnóstico por imagem , Dente Impactado/diagnóstico por imagem , Dente Impactado/cirurgia , Tração , Resultado do Tratamento
13.
Cochrane Database Syst Rev ; 8: CD012969, 2019 08 02.
Artigo em Inglês | MEDLINE | ID: mdl-31425614

RESUMO

BACKGROUND: Thalassaemia is a quantitative abnormality of haemoglobin caused by mutations in genes controlling production of alpha or beta globins. Abnormally unpaired globin chains cause haemolytic anaemia by causing membrane damage and cell death within organ systems and destruction of erythroid precursors in the bone marrow. The life-long management of the general health effects of thalassaemia in affected individuals is a highly challenging issue in and of itself; and failure to deal with dental and orthodontic complications in people with thalassaemia exacerbates the public health, financial and personal burden posed by the condition. There exists a lack of evidence-based guidelines for care-seekers and providers to best deal with such dental and orthodontic complications in thalassaemia, which this review seeks to address. OBJECTIVES: The main objective of this review was to assess different methods to treat dental and orthodontic complications in people with thalassaemia. SEARCH METHODS: We searched the Cochrane Cystic Fibrosis and Genetic Disorders Group's Haemoglobinopathies Trials Register, compiled from electronic database searches and handsearching of journals and conference abstract books. We searched the reference lists of relevant articles and reviews.Date of last search: 01 August 2019.We also searched nine online databases (PubMed, Google Scholar, ClinicalTrials.gov, WHO International Clinical Trials Registry Platform, Literature in the Health Sciences in Latin America and the Caribbean database, African Index Medicus, Index Medicus for South East Asia Region, Index Medicus for the Eastern Mediterranean Region, Indexing of Indian Medical Journals). We searched the reference lists of relevant articles and reviews and contacted haematologists, experts in fields of dentistry, organizations, pharmaceutical companies and researchers working in this field.Date of last search: 22 July 2019. SELECTION CRITERIA: We searched for published or unpublished randomised controlled trials for treatment of dental and orthodontic complications in individuals diagnosed with thalassaemia, irrespective of phenotype, severity, age, gender and ethnic origin. DATA COLLECTION AND ANALYSIS: Two review authors independently screened 35,202 titles from search results. We identified four unique randomised controlled trials, of which one seemed potentially relevant. Based on closer inspection, the trial was found not to be eligible for inclusion. MAIN RESULTS: We did not find any relevant trials for inclusion in the review. AUTHORS' CONCLUSIONS: We were unable to draw any conclusions due to the lack of available data and trials. This review highlights the need for conducting and appropriate reporting, of high-quality randomised controlled trials investigating the effectiveness of various treatment modalities for dental and orthodontic complications in people with thalassaemia.


Assuntos
Má Oclusão , Talassemia/complicações , Doenças Dentárias , Humanos , Má Oclusão/etiologia , Má Oclusão/terapia , Ensaios Clínicos Controlados Aleatórios como Assunto , Doenças Dentárias/etiologia , Doenças Dentárias/terapia
14.
Am J Orthod Dentofacial Orthop ; 156(2): 266-274, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31375237

RESUMO

Adult orthodontic treatment involving maxillary transverse deficiency is a challenge for an interdisciplinary team. Surgically assisted rapid palatal expansion to segment the maxilla was once the treatment of choice, but the invasiveness, bone deficiency, and gingival recession hindered its acceptance. Corticotomy-assisted rapid maxillary arch expansion with ridge augmentation has the advantage of augmenting alveolar bony housing to accommodate and facilitate tooth movement. This approach was used to correct a severely constricted maxilla with bilateral posterior crossbite and anterior crowding in a 46-year-old man. Treatment time was 14 months. The accelerated arch expansion overcame the crossbite in 7 months, increasing intercanine distance by 5.2 mm and intermolar distance by 9.8 mm. Subsequent implant prosthesis was able to be restored in a functional normal occlusion. Satisfactory and stable clinical outcome was followed for 7 years. Corticotomy-assisted rapid maxillary arch expansion with alveolar bone augmentation is a novel and effective interdisciplinary approach for correcting adult maxillary transverse deficiency. Well controlled prospective clinical trails are warranted for further investigation.


Assuntos
Aumento do Rebordo Alveolar/métodos , Má Oclusão/terapia , Técnica de Expansão Palatina , Técnicas de Movimentação Dentária/métodos , Cefalometria , Modelos Dentários , Oclusão Dentária , Seguimentos , Humanos , Masculino , Má Oclusão/diagnóstico por imagem , Má Oclusão/patologia , Má Oclusão/cirurgia , Má Oclusão de Angle Classe II/diagnóstico por imagem , Má Oclusão de Angle Classe II/patologia , Má Oclusão de Angle Classe II/cirurgia , Má Oclusão de Angle Classe II/terapia , Má Oclusão de Angle Classe III/diagnóstico por imagem , Má Oclusão de Angle Classe III/patologia , Má Oclusão de Angle Classe III/cirurgia , Má Oclusão de Angle Classe III/terapia , Maxila/anormalidades , Maxila/patologia , Maxila/cirurgia , Pessoa de Meia-Idade , Aparelhos Ortodônticos , Braquetes Ortodônticos , Fios Ortodônticos , Palato/cirurgia , Planejamento de Assistência ao Paciente , Estudos Prospectivos , Resultado do Tratamento
15.
Med Arch ; 73(2): 113-117, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31391699

RESUMO

Introduction: Malocclusion as an oral disorder can cause negative impact on individuals oral conditions, social interactions and self-esteem. Aim: The aim of this study was to compare oral health-related quality of life (OHQoL) of patients who had received fixed orthodontic treatment and patients who had not received fixed orthodontic treatment. Materials and Methods: Data were collected from 178 participants attended at professional dental office (mean age 22.71 years) in two groups (experimental and control). The experimental group comprised of 90 subjects who were in the retention phase, after their orthodontic treatment, and the control group comprised of 88 untreated subjects. Oral Health Impact Profile (OHIP-14) was used to assess the patients oral health related quality of life (OHQoL). Results: The control group had significantly higher OHIP-14 scores than experimental group (p < 0.001). Participants with treatment need reported a significantly greater negative impact on the overall OHRQoL score. Conclusion: Subjects with no history of orthodontic treatment had more negative oral health related quality (OHRQoL), than subjects who had completed orthodontic treatment. Dental malocclusion has significant negative impact on OHRQoL.


Assuntos
Má Oclusão/fisiopatologia , Má Oclusão/psicologia , Saúde Bucal , Ortodontia Corretiva , Qualidade de Vida , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Má Oclusão/terapia , Aparelhos Ortodônticos Fixos , Adulto Jovem
16.
Rev. ADM ; 76(4): 219-228, jul.-ago 2019. ilus
Artigo em Espanhol | LILACS | ID: biblio-1023759

RESUMO

El quad-hélix (QH) es un aparato de expansión maxilar, fabricado con alambre de acero inoxidable soldado a bandas en molares, que dispone de espirales o hélices que aumentan la longitud de alambre del aparato, lo que lo hace muy elástico y aligera la magnitud de la fuerza sobre los dientes, es ampliamente usado tanto en dentición mixta como en permanente temprana, fácil de fabricar, higiénico y bien tolerado por los pacientes. Su principal acción es mover hacia vestibular los procesos dentoalveolares de la arcada maxilar, influyendo secundariamente en la expansión de la sutura palatina media en pacientes con dentición mixta o permanente temprana. El QH es muy práctico y tiene muchos usos y adaptaciones y se puede utilizar como auxiliar en el tratamiento de problemas de hábito de dedo o lengua, para abrir mordida, rotar y dar torque a molares permanentes o para mover sólo un diente en particular. En este artículo describimos una nueva aplicación del QH que consiste en la tracción, de dientes anteriores superiores permanentes retenidos, después del abordaje quirúrgico para localizarlos. También revisaremos las indicaciones, contraindicaciones, ventajas y desventajas del aparato QH soldado a bandas en molares así como su elaboración, variantes y forma de activación (AU)


The quad-helix (QH) is a maxillary expansion appliance, manufactured with stainless steel wire welded to bands in molars, which has spirals or helix to increase the length of wire of the device, which makes it very elastic and lightens the magnitude of the force on the teeth, is widely used both in mixed and in early permanent dentition, is easy to manufacture, hygienic and well tolerated by patients. Its major action is to move towards the dentoalveolar process of the maxillary arcade, secondarily influencing the expansion of the middle palatal suture in young patients with mixed or permanent early dentition. The QH is very practical and has many uses and adaptations as an aid in the treatment of problem of thumb sucking or tongue habit, to open bite, to rotate and torque permanent molars or to move only one particular tooth. In this article we describe a new application of the QH that consist of the traction or retained permanent upper teeth, after surgical approach to locate them. We will also review the indications, contraindications, advantages and disadvantages of the QH welded to molar bands, as well as its construction, variants and activation form (AU)


Assuntos
Humanos , Pré-Escolar , Criança , Técnica de Expansão Palatina , Má Oclusão/terapia , Fios Ortodônticos , Hábitos Linguais , Dentição Permanente , Torque , Dentição Mista
17.
Cient. dent. (Ed. impr.) ; 16(2): 87-92, mayo-ago. 2019. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-183717

RESUMO

El objetivo de este estudio fue determinar la presencia de asimetría del cóndilo mandibular en pacientes con mordida cruzada posterior unilateral que acudieron para posible tratamiento ortodóncico, comparando la altura y el ancho mandibular de ambos cóndilos. Métodos: Se midieron las anchuras y alturas condilares derechas e izquierdas en 42 ortopantomografías de pacientes infantiles de siete, ocho y nueve años, de ambos sexos, utilizando el método de Habets. Resultados: No se encontraron diferencias estadísticamente significativas, respecto al género y tipo de dentición, tanto en la altura como en la anchura condilar en la muestra compuesta por 42 pacientes. Conclusiones: No observamos la existencia de asimetría del cóndilo en el que se desarrolla la mordida cruzada posterior en relación al contralateral en los grupos de edad estudiados


The aim of this study was to determine the presence of asymmetry of the mandibular condyle in patients with a unilateral posterior crossbite who came for possible orthodontic treatment, comparing the mandibular height and width of both condyles. Methods: Right and left condyle widths and heights were measured in 42 orthopantomographies of seven, eight and nine year old children of both sexes, using the Habets method. Results: No statistically significant differences were found regarding gender and type of dentition, both in the height and in the condylar width in the sample composed of 42 patients. Conclusions: We did not observe the asymmetry of the condyle in which the posterior crossbite was developed in relation to the contralateral bite in the age groups studied


Assuntos
Humanos , Masculino , Feminino , Criança , Má Oclusão/diagnóstico por imagem , Má Oclusão/terapia , Ortodontia/métodos , Côndilo Mandibular/diagnóstico por imagem , Radiografia Panorâmica/métodos , Mandíbula/diagnóstico por imagem , Mandíbula/anatomia & histologia
18.
ScientificWorldJournal ; 2019: 2685437, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31281231

RESUMO

Objectives: To determine the prevalence of orthodontic treatment need in 12-year-old children in Hong Kong and its relationship with the psychosocial impact of malocclusion and to assess their associations with sociodemographic factors. Materials and Methods: A random sample of 687 12-year-old children was recruited from 45 secondary schools in Hong Kong. Orthodontic treatment need was assessed on study models by five indices: the Dental Health Component of the Index of Orthodontic Treatment Need (IOTN-DHC), the Aesthetic Component of the IOTN (IOTN-AC), the Dental Aesthetic Index (DAI), the Index of Complexity Outcome and Need (ICON), and the Peer Assessment Rating (PAR). The psychosocial impact of malocclusion on participants and sociodemographic factors were obtained from a questionnaire. Logistic regression was used to examine the correlations between treatment need and the psychosocial impact of malocclusion as well as their associations with sociodemographic factors. Results: The final number of participants was 667 (339 boys and 328 girls, participation rate 667/687 = 97.1%). The prevalence of orthodontic treatment need varied depending on the indices used (10.9-47.8%), but significant correlations were found among the five indices (p < 0.01). The uptake of treatment among the cohort was 2.3%. Boys had higher IOTN-DHC (p < 0.05), DAI (p < 0.05), and PAR (p = 0.05) scores than girls. IOTN-AC was significantly associated with the psychosocial impact of malocclusion (p < 0.05). Parents' level of education and household income were not significantly associated with either treatment need or the psychosocial impact of malocclusion (p > 0.05). Conclusion: The need for orthodontic treatment in 12-year-old children in Hong Kong remained high, and the uptake of treatment was low. Boys had a higher normative treatment need than girls. Among the five indices, IOTN-AC appears to be the best indicator of the psychosocial impact of malocclusion.


Assuntos
Necessidades e Demandas de Serviços de Saúde , Má Oclusão/epidemiologia , Ortodontia Corretiva , Fatores Etários , Criança , Estudos Transversais , Assistência Odontológica , Feminino , Hong Kong/epidemiologia , Humanos , Índice de Necessidade de Tratamento Ortodôntico , Masculino , Má Oclusão/psicologia , Má Oclusão/terapia , Razão de Chances , Ortodontia Corretiva/estatística & dados numéricos , Psicologia , Fatores Socioeconômicos
19.
Am J Orthod Dentofacial Orthop ; 156(1): 29-43.e5, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31256831

RESUMO

INTRODUCTION: Although conventional combined orthodontic-surgical treatment is frequently applied in orthodontic clinic practice, its actual effect on oral health-related quality of life (OHRQoL) remains inconclusive. We aimed to appraise trials investigating the effect of conventional combined orthodontic-surgical treatment on OHRQoL in patients with dentofacial deformities. METHODS: Electronic searches of 6 databases and manual searches were conducted up to January 2019. Randomized controlled trials, controlled clinical trials, and prospective cohort studies that investigated the impact of combined orthodontic-surgical treatment on OHRQoL using validated instruments were included. The risk of bias within individual studies was assessed with the use of the Cochrane tool or the Newcastle-Ottawa Scale according to study designs. Meta-analysis was conducted, and OHRQoL at different time points during conventional combined orthodontic-surgical treatment were statistically pooled and compared. RESULTS: Of the 893 records initially identified, 24 studies were included in this review. Relative to pretreatment, the condition-specific OHRQoL was significantly improved 6 months after surgery, particularly in the perceptions to social aspects (mean difference [MD] 4.88, 95% confidence interval [CI] 2.45 to 7.32), facial appearance (MD 5.48, 95% CI 4.18 to 6.79), and oral function (MD 4.49, 95% CI 3.27 to 5.72). In terms of changes during combined orthodontic-surgical treatment, the condition-specific OHRQoL worsened in the presurgical orthodontic treatment (MD -7.25, 95% CI -13.29 to -1.22) and improved postsurgically compared with pretreatment (MD 16.59, 95% CI 10.41 to 22.77). Similar patterns were observed in the general OHRQoL changes. CONCLUSIONS: For patients undergoing combined orthodontic-surgical treatment, the OHRQoL seems to decrease temporarily in presurgical orthodontic treatment compared with pretreatment and to increase to a level better than it was before treatment during postsurgical orthodontic treatment. Based on the present review, combined orthodontic-surgical treatment could be an effective choice to improve OHRQoL for patients affected with severe dentofacial deformities.


Assuntos
Saúde Bucal , Ortodontia Corretiva , Procedimentos Cirúrgicos Ortognáticos , Qualidade de Vida , Bases de Dados Factuais , Humanos , Má Oclusão/terapia , Cirurgia Ortognática
20.
Am J Orthod Dentofacial Orthop ; 156(1): 61-66, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31256840

RESUMO

OBJECTIVE: The objectives of this research were to investigate and compare general and pediatric dentists' subjective judgments of orthodontic case complexity and to determine how their perceptions of case complexity influence their decisions to refer the patient to an orthodontist. METHODS: Twenty pediatric dentists and 21 general dentists participated in the study. Pretreatment orthodontic records of 20 patients with a variety of malocclusions and a range of American Board of Orthodontics Discrepancy Index (DI) scores were used. Respondents were asked about their background and training in orthodontics. They were also asked to identify the subjective complexity of each case with the use of a 100-point visual analog scale (VAS) and whether they would refer the patient to an orthodontic specialist. A mixed-model multivariate data analysis was used to evaluate the subjective case complexity with the use of fixed factors such as DI score, type of panel member, experience, annual continuing education rate, and gender. Generalized linear mixed models were used to investigate the referral patterns of the general dentists and pediatric dentists. Level of significance was set at P < 0.05 for all statistical analyses. RESULTS: General dentists appeared to provide more overall orthodontic treatment than pediatric dentists; many general dentists provide limited orthodontic treatment and clear aligner therapy (P < 0.05). The perceived complexity score for cases was not significantly different between the 2 groups (P = 0.82). The association between DI score and perceived complexity was similar in both groups (P = 0.183) and there was a high correlation between DI and VAS score in the sample (r = 0.71; 95% Cl 0.38-0.87). Pediatric dentists had higher referral rates for cases with DI scores both below and above 20. Significant differences were noted between the pediatric and general dentists in the individual case referral decision as evaluated by the DI (P < 0.037) and VAS (P < 0.042) scores. CONCLUSIONS: General dentists provided more orthodontic care than the pediatric dentists. Both groups identified case complexity similarly, with only minor differences, but pediatric dentists had higher referral rates to orthodontic specialists regardless of the initial case complexity.


Assuntos
Tomada de Decisões , Odontólogos , Clínicos Gerais , Índice de Necessidade de Tratamento Ortodôntico , Ortodontistas , Encaminhamento e Consulta/normas , Atitude do Pessoal de Saúde , Odontólogos/educação , Clínicos Gerais/educação , Humanos , Julgamento , Má Oclusão/terapia , Análise Multivariada , Ortodontia Corretiva , Seleção de Pacientes , Projetos de Pesquisa , Inquéritos e Questionários
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