CLINICAL EFFICIENCY OF NEW GENERATION ELASTOMERIC LIGATURES OVER CONVENTIONAL: AN IN-VIVO STUDY

Abdul Shameer,
Vimala G..,
Prema Anbarasu,
Gayathri Mathivanan

Abstract

ABSTRACT Background: Friction being an imperative element in clinical orthodontics affects all stages of treatment and high frictional forces can affect the treatment duration and outcome in a deleterious manner. This study was done to appraise frictional resistance of non-conventional elastomeric modules in comparison with conventional elastomeric modules, during the retraction of teeth. Materials and Methods: The study sample size includes 30 patients (11 males and 19 females) undergoing orthodontic treatment. They were grouped into 3, namely, Group A- Slide nonconventional elastomeric ligatures Group B- super slick nonconventional elastomeric ligatures, and Group C- the conventional ligature. The study models were obtained to assess canine retraction rate, anchor loss, canine rotation, and molar rotations at different time intervals and subjected to statistical analysis. Result: The canine retraction rate(maxilla) for Group A, B and C was 1.674+/-0.092, 1.187+/-0.156, and 1.147+/-0.113,(mandible)1.765+0.099, 1.300+0.099 and 1.270+0.111 respectively. Mean anchorage loss(maxilla) group A- 1.054mm, group B- 1.080mm, group C -1.715mm (mandible) 1.024mm, 0.952mm and 1.664mm respectively. Canine rotation(maxilla) of Group A, B and C is 8.550+/-1.506, 5.300+/-1.386, 6.100+/-1.315and(mandible) 8.930/-+1.474, 5.830+/-1.096, 6.880+/-1.813 respectively. Mean molar rotation (maxilla) 2.580+0.735, 2.210+0.549 and 2.210+0.700 (mandible)2.900+0.541, 2.650+0.639 and 2.780+0.604 in group A, B and C respectively. Conclusion: Mean anchor loss was lesser in non-conventional modules, canine retraction rate was higher with Slide ligature, canine rotations were least in superslick more in Slideligature, and rotation of molar was apparent for all the groups. Keywords: Slide ligatures, Superslick modules, friction, space closure