Year : 2017

Volume : Volume 7

Issue : Issue 3

Address for correspondence :
Dr. Shafeeq Rahman.
abinz143@gmail.com

Abstract

Aim:  The present study was conducted to compare the rate of relapse with DAMON Q and conventional MBT brackets in extraction cases. Materials and methods: The first group (Group A) consisted of 10 patients who had undergone treatment with Ormco Damon Q Brackets. The second group (Group B) consisted of 10 patients who had undergone treatment with Conventional Brackets (MBT). Complete records including plaster models were taken before treatment (T1), immediately after treatment (T2), six months after treatment (T3). The following variables were measured: inter canine width, inter molar width, arch length, irregularity index. The following measurements were made on each dental cast with 150 mm of Vernier calliper (work zone). Width of the arches in canine and premolar region were measured with the Vernier calliper from the tip of the facial cusp of one premolar or canine, across the dental arch to the corresponding point on the homologous tooth. Arch length was measured in the maxilla and mandible from mesiolingual surface of first molar to mesial surfaces of central incisors. The mandibular irregularity index was measuring the displaced contact points of the anterior teeth as described by Little. Results: The overall rate of relapse using Damon Q Group and Conventional MBT Group were similar. There were highly significant differences in the amount of relapse in lower arch length between Damon Q and MBT systems during 6 month of post retention. Conclusion: Mandibular incisor irregularity was increase in postretention period (0.823) showing relapse in irregularity index in lower arch treated by Damon system. Total lower arch length was increased in cases were treated by Damon SL brackets(0.86 mm) showing relapse in arch length. During post retention period.

Keywords: Evidence, Implantology, Periodontal disease.