Dehiscence and fenestration in patients with Class I and Class II Division 1 malocclusion assessed with cone-beam computed tomography.
BACKGROUND
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.
Evangelista
Karine
K
Federal University of Goiás, Goiânia, GO, Brazil. karine@odontologiamaxima.com.br
Vasconcelos
Karla de Faria
Kde F
Bumann
Axel
A
Hirsch
Edgar
E
Nitka
Margarita
M
Silva
Maria Alves Garcia
MA
D000328:Adult; D016301:Alveolar Bone Loss / Q000209:etiology* / Q000473:pathology; D000539:Alveolar Process / Q000473:pathology*; D016723:Bone Remodeling; D054893:Cone-Beam Computed Tomography; D005145:Face / Q000033:anatomy & histology; D005147:Facial Bones / Q000033:anatomy & histology; D006801:Humans; D008311:Malocclusion, Angle Class I / Q000150:complications* / Q000000981:diagnostic imaging / Q000628:therapy; D008312:Malocclusion, Angle Class II / Q000150:complications* / Q000000981:diagnostic imaging / Q000628:therapy; D008334:Mandible; D008437:Maxilla; D014087:Tooth Movement Techniques / Q000009:adverse effects*; D055815:Young Adult