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Master's Dissertation
DOI
https://doi.org/10.11606/D.61.2018.tde-06102020-142844
Document
Author
Full name
Oscar Stangherlin Gomes
Institute/School/College
Knowledge Area
Date of Defense
Published
Bauru, 2018
Supervisor
Committee
Carreira, Daniela Gamba Garib (President)
Corotti, Karyna Martins do Valle
Faco, Renato André de Souza
Pinheiro, Fabio
Title in English
Influence of bone-anchored maxillary protraction on secondary alveolar bone graft status in unilateral cleft lip and palate
Keywords in English
Alveolar bone grafting
Cleft lip
Cleft palate
Orthodontic anchorage procedures
Abstract in English
Introduction: Bone-anchored maxillary protraction (BAMP) using intermaxillary elastics has shown adequate orthopedic results in patients from 10 to 14 years of age. In cleft lip and palate, patients were favored esthetically and functionally during growth, having reduced the possibility or magnitude of future orthognathic surgery. Objective: To evaluate the effects of bone anchored maxillary protraction (BAMP) on the status of the secondary alveolar bone graft (SABG) in patients with unilateral cleft lip and palate (UCLP). Methods: The experimental group (EG) comprised 26 patients with UCLP and a mean age of 11.7 years submitted to SABG and BAMP therapy. Cone-beam computed tomography (CBCT) exams were taken 3 to 6 months after SABG and prior to BAMP (T1) and at the end of 12 months of therapy (T2). The control group (CG) was composed by 24 patients with UCLP submitted only to SABG, matched by initial age and sex with the EG. In the control group, CBCT exams were performed 6 months (T1) and 12 months (T2) after SABG surgery. CBCT axial sections were analyzed using the method by Garib et al. (2017) in both time points. Intra and intergroup comparisons were performed using Wilcoxon and Mann-Whitney tests (p<5%). Results: No intergroup differences were found at T1 and T2. The experimental group showed an increase of graft score from T1 to T2. No interphase differences were found for graft score in the control group. Conclusions: In spite of loads applied to the maxilla, no harm on the grafted alveolar bone was observed after BAMP therapy in patients with UCLP
Title in Portuguese
Influência da protração maxilar com ancoragem óssea no status do enxerto ósseo alveolar secundário em fissura labiopalatina unilateral
Keywords in Portuguese
Enxerto de osso alveolar
Fenda labial
Fissura palatina
Procedimentos de ancoragem ortodôntica
Abstract in Portuguese
Introdução: A protração maxilar ancorada em miniplacas (BAMP) utilizando elásticos intermaxilares mostrou resultados ortopédicos adequados em pacientes de 10 a 14 anos de idade. Em pacientes com fissura labiopalatina, houve favorecimento estético e funcional durante o crescimento, reduzindo a possibilidade ou magnitude de cirurgia ortognática futura. Objetivo: Avaliar os efeitos da protração maxilar ancorada em miniplacas (BAMP) sobre o status do enxerto ósseo alveolar secundário (SABG) em pacientes com fissura labiopalatina unilateral (UCLP). Métodos: O grupo experimental (EG) foi composto por 26 pacientes com UCLP e idade média de 11,7 anos submetidos à terapia com SABG e BAMP. Os exames de tomografia computadorizada de feixe cônico (CBCT) foram realizados 3 a 6 meses após a cirurgia de enxerto ósseo, antes (T1) e ao final de 12 meses de tratamento com BAMP (T2). O grupo controle (CG) foi composto por 24 pacientes com o mesmo tipo de fissura submetidos apenas ao enxerto ósseo alveolar secundário, pareados por idade inicial e sexo com o EG. No grupo controle, os exames de CBCT foram realizados 6 meses (T1) e 12 meses (T2) após a cirurgia de SABG. Secções axiais de CBCT foram analisadas utilizando o método de Garib et al. (2017). Comparações intra e intergrupos foram realizadas utilizando os testes Wilcoxon e Mann-Whitney (p <5%). Resultados: Não foram encontradas diferenças intergrupos em T1 e T2. O grupo experimental apresentou aumento do escore do enxerto de T1 para T2. Nenhuma diferença interfases foi encontrada no grupo controle. Conclusões: Apesar das cargas aplicadas na maxila, nenhum dano ao osso alveolar enxertado foi observado após a terapia com BAMP em pacientes com UCLP
 
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Publishing Date
2020-10-14
 
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