Avaliação de deiscência e fenestração por meio de tomografia computadorizada volumétrica em pacientes com maloclusão de Classe I e Classe II Divisão 1
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Data
2009-01-16
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Universidade Federal de Goiás
Resumo
The effects of orthodontic treatment on periodontal structures have been
studied in literature, especially regarding the integrity of alveolar bone and
gingival health of the teeth to be displaced. The aim of this study was to
evaluate the presence of alveolar defects (dehiscence and fenestrations) in
patients with Class I and Class II division 1 malocclusions and in different facial
types using cone beam computed tomography (CBCT). The sample comprised
159 tomography exams of patients with no previous orthodontic treatment,
giving a total of 4319 teeth. The presence or absence of dehiscence and
fenestration in the buccal and lingual surfaces was checked in axial and crosssectional
views. The results showed that 155 patients (96.9%) presented some
type of alveolar defect. The Class I malocclusion patients presented higher
prevalence of dehiscences (35%) than those with Class II division 1
malocclusion. There was no statistically significant difference between the facial
types. Lower incisors, lower canines and lower first premolars were respectively
the teeth with more occurrences of alveolar defects. This study concluded that
CBCT is indicated for patients who need extensive tooth movement and have
unfavorable gingival biotype.
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ARRUDA, Karine Evangelista Martins. Avaliação de deiscência e fenestração por meio de tomografia computadorizada volumétrica em pacientes com maloclusão de Classe I e classe II Divisão 1. 2009. 64 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Goiás, Goiânia, 2009.