A Randomized Clinical Trial to Evaluate Labial Alveolar Bone Thickness and Apical Root Resorption between Two Types of Brackets Using Cone - Beam Computed Tomography
Journal Title: Indian Journal of Dental Advancements - Year 2017, Vol 9, Issue 4
Abstract
Context: There has always been a concern in determining the relationship between orthodontic tooth movement and the consequent biological costs to the periodontium and tooth root. To date, fewer studies have investigated the relationship between bracket type and labial alveolar bone thickness (LABT) of incisors in both mandible and maxilla, using cone beam computerized tomography (CBCT) data. This information will strengthen our understanding of labial movement and provide insights concerning the changes that occur. The present aims in studying the same. Objective: To assess LABT and apical root resorption (ARR) of incisors in patients undergoing the first phase of orthodontic treatment with two types of brackets. Materials and Methods: 21 Angle’s Class I patients (anterior crowding: 3–5 mm; mean age: 17.58 years ± 2.38 years) were included in the study and randomly divided into two groups: Group I ( n = 10, self-ligating brackets) and Group II ( n = 11, conventional preadjusted brackets). LABT in two levels (L1, L2) and ARR were evaluated in 152 incisors by using CBCT scans. The CBCT scans were assessed by the same researcher, requested both at the beginning (T0) and 6 months after the initiation of orthodontic treatment (T1), with a level of sensitivity fixed at 25% by using Ondemand three-dimensional application Software (Version 1, Cybermed, South Korea). The two groups were compared with Student t -test (parametric data) and Mann–Whitney test (non-parametric data) while paired groups were compared by paired t -test with 5% significance level. Results: On comparing the changes in ARR of lower incisors, the results showed statistically, but not clinically, significant change for the conventional group. However, no significant difference changes were observed between both groups regarding LABT at L1, LABT at L2 and ARR of upper incisors. Conclusions: There was tendency of incisors to suffer less resorption when using self-ligating brackets, but the results were inconclusive and clinically insignificant.
Authors and Affiliations
Shaza Hammad, Ahmed Fouda, Nader Giacaman
Keywords
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- EP ID EP471925
- DOI 10.5866/2017.9.10210
- Views 85
- Downloads 0
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