Year : 2020

Volume : Volume 11

Issue : Issue 2s

Address for correspondence :
Dr. Ranjit Omprakash Pawar.
drranjitpawar@gmail.com

Abstract

Aim:  To clinically compare the space closure using various systems of force delivery in orthodontics. Material & Method: Forty patients from the 17-25 age group were divided into four groups based on mode of space closure as Group I by active ligature, Group II by power e-chain, Group III by Nickel-Titanium closed coil spring and Group IV by Stainless Steel closed coil spring. After every four weeks, the quantity of space closure was measured using the automated Vernier calliper.  Result: The mean (mm) of retraction achieved at the end of the 1stmonth was 0.597 in Group I with a SD of 0.208 and 0.815 in Group II with a SD of 0.146. Whereas, the mean was 1.165 with SD of 0.198 in Group III, and 0.928 with SD of 0.451 in Group IV. Conclusion: The order of force distribution systems according to the retraction rate for both Ni-Ti closed coil spring and Stainless-Steel closed coil spring was equal and more than both Power E-chain and Active ligatures.

Keywords: Space Closure;Ni-Ti closed coil spring; Stainless Steel closed coil spring; Power E-chain and Active ligatures.