Application of CBCT in the Evaluation of Impacted Teeth (a Review Study) Gahrouei Mahsa1, Javadpour Fataneh Ghorbany2,* 1Student of Dentistry, Dental School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran 2Assistant Professor of Orthodontics, Orthodontics Department, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran *Corresponding Author: Fataneh Ghorbany Javadpour, E-Mail: Fa.ghorbanyjavad@gmail.com, Academic E-Mail: ghorbany-f@ajums.ac.ir, Tel: + 98333205168, Cell phone: +989161118346, Fax: 33205320
Online published on 27 November, 2019. Abstract Introduction The treatment of impacted teeth in orthodontics requires precise work, therefore accurate instrumentation and imaging. For this purpose, the study aimed to investigate the application of CBCT as a high-resolution imaging technique in evaluation of impacted teeth. Methodology This review study was conducted by searching the authoritative electronic sources including PubMed, ISI Web of Science and Google Scholar between 2013 and 2018 using keywords like CBCT imaging, orthodontics, impacted teeth and orthodontic diagnosis, which were searched to obtain all studies in English and Persian for the last five years. In this review study, acceptance of studies to for inclusion to the research was carried out by a series of inclusion and exclusion criteria. Initially, the titles an. abstracts of the studies obtained from the search were examined by two people in terms of the inclusion criteria. Selected papers were evaluated in terms of scientific principles and inclusion criteria and methodology accuracy. The references to these papers were also examined manually to evaluate the related papers and include in the papers in the case of having the terms. Results In this study, after reviewing the present papers it was found that CBCT was applied to examine the relationship between the sella turcica bridge and maxillary canine impaction, the prediction of treatment duration for impacted maxillary canine, mandibular canine migraine and lateral tooth resorption, the relationship between dental follicle width and impacted maxillary canine, the effect of position of impacted canines (whether palatal or labial) on lateral tooth resorption, relationship between age and sex and place and severity of resorption as a result of impacted maxillary canine, 3D position of the impacted maxillary canine, the relationship between the maxillary transverse dimension and canine palatal displacement and prediction of problems of eruptive force of impacted maxillary canines. Conclusion According to the review of studies done on impacted teeth by CBCT, there was no relationship between canine impaction and sella turcica bridge, impacted canine dental follicle width and the risk of further resorption in lateral incisors, position of impacted canines (whether palatal or labial) with resorption of lateral teeth, age and sex and place and intensity of resorption due to impacted canine, maxillary transverse dimension and canine palatal displacement. It was also seen that the duration of treatment for maxillary impacted canine and maxillary canine eruptive problems can be predicted using CBCT, and further guidance in diagnosis and treatment can be provided by determining the precise 3D positioning of the impacted teeth. Top Keywords CBCT imaging, orthodontics, impacted teeth, diagnosis in orthodontics. Top |