Comparison between the Accuracy of Computer Aided Indirect Bracket Positioning with and without CBCT: A Randomized Clinical Trial

Abstract

The aim of this study was to compare the accuracy of computer-aided indirect bracket positioning with and without CBCT. The assessed primary outcome was the post leveling and alignment angulation of the maxillary and mandibular teeth from second premolar to second premolar and the measurements were compared for each group with the normal teeth angulations values and then compared for both groups. The sample was recruited from the outpatient’ clinic of the Orthodontic Department, Faculty of Dentistry, Ain-Shams University. The sample consisted of 20 adult patients that have all permanent teeth from 1st molar to 1st molar with no history of systemic disease affecting bone or teeth and no crown fractures or restorations. The patients were randomly allocated to one of 2 groups either CBCT.G group or CBCT.UG group. Two patients in the CBCT.G group and three patients in the CBCT.UG group were lost to follow up. The final sample included 8 patients in CBCT.G group and 7 patients in the CBCT.UG group After taking full orthodontic records, patient’s orthodontic models were scanned. Computer aided indirect bracket positioning was then performed for both groups. Bracket angulation was adjusted guided by clinical crowns for