INTRODUCTION: The aim of this study was to compare the presence of alveolar defects (dehiscence and fenestration) in patients with Class I and Class II Division 1 malocclusions and different facial types. METHODS: Seventy-nine Class I and 80 Class II patients with no previous orthodontic treatment were evaluated using cone-beam computed tomography. The sample included 4319 teeth. All teeth were analyzed by 2 examiners who evaluated sectional images in axial and cross-sectional views to check for the presence or absence of dehiscence and fenestration on the buccal and lingual surfaces. RESULTS: Dehiscence was associated with 51.09% of all teeth, and fenestration with 36.51%. The Class I malocclusion patients had a greater prevalence of dehiscence: 35% higher than those with Class II Division 1 malocclusion (P <0.01). There was no statistically significant difference between the facial types. CONCLUSIONS: Alveolar defects are a common finding before orthodontic treatment, especially in Class I patients, but they are not related to the facial types. Copyright (c) 2010 American Association of Orthodontists. Published by Mosby, Inc. All rights reserved.
INTRODUCTION: The aim of this study was to compare the presence of alveolar defects (dehiscence and fenestration) in patients with Class I and Class II Division 1 malocclusions and different facial types. METHODS: Seventy-nine Class I and 80 Class II patients with no previous orthodontic treatment were evaluated using cone-beam computed tomography. The sample included 4319 teeth. All teeth were analyzed by 2 examiners who evaluated sectional images in axial and cross-sectional views to check for the presence or absence of dehiscence and fenestration on the buccal and lingual surfaces. RESULTS: Dehiscence was associated with 51.09% of all teeth, and fenestration with 36.51%. The Class I malocclusion patients had a greater prevalence of dehiscence: 35% higher than those with Class II Division 1 malocclusion (P <0.01). There was no statistically significant difference between the facial types. CONCLUSIONS:Alveolar defects are a common finding before orthodontic treatment, especially in Class I patients, but they are not related to the facial types. Copyright (c) 2010 American Association of Orthodontists. Published by Mosby, Inc. All rights reserved.
Authors: Maria Antonia Alvarez; Alejandra Mejia; Daniela Alzate; Diego Rey; Marcos Ioshida; Juan Fernando Aristizabal; Hector F Rios; Wilhelm Bellaiza-Cantillo; Marcela Tirado; Antonio Ruellas; Lucia Cevidanes Journal: Am J Orthod Dentofacial Orthop Date: 2021-01-21 Impact factor: 2.650