Apical root resorption due to orthodontic treatment detected by cone beam computed tomography
Data
2013
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Resumo
Objective: To determine the frequency of apical root resorption (ARR) due to orthodontic
treatment using cone beam computed tomography (CBCT) in a sample of 1256 roots from 30
patients.
Materials and Methods: All patients had Class I malocclusion with crowding. Of the 30 patients
evaluated, 11 were boys and 19 were girls; their mean age was 13 years (11 to 16 years).
Orthodontic treatment followed the nonextraction treatment. CBCT images were obtained before
and after orthodontic treatment, and ARR was determined using Axial Guided Navigation of CBCT
images.
Results: All patients had ARR. No statistically significant association was found between
resorption frequency, gender, and age. ARR was detected using CBCT in 46% of all roots that
underwent orthodontic treatment.
Conclusions: CBCT was effective for detecting in vivo even minimal degrees of ARR due to
orthodontic treatment and allowed three-dimensional evaluation of dental roots and visualization of
palatine roots of maxillary molars. The highest frequencies and the most significant ARR occurred
in incisors and distal roots of first maxillary and mandibular molars. (Angle Orthod. 2013;83:196–
203.)
Descrição
Palavras-chave
Cone beam computed tomography, Orthodontic treatment, Diagnostic imaging, Root resorption
Citação
CASTRO, Iury O. et al. Apical root resorption due to orthodontic treatment detected by cone beam computed tomography. Angle Orthodontist, Appleton, v. 83, n. 2, p. 196-203, 2013.