Comparative Evaluation of Root Resorption in Correction of Class II Malocclusion

Priyanka Priyanka,Yagyeshwar Malhotra Yagyeshwar Malhotra

doi:10.26440/ihrj/0411.02393

Abstract

INTRODUCTION: External apical root resorption is a common iatrogenic side effect of orthodontic treatment and has been reported particularly in anterior teeth. The etiology of resorption is multifactorial, complex and individual susceptibility to resorption depends on various factors.MATERIALS AND METHOD: The degree of root resorption during orthodontic treatment was evaluated on the post-treatment RVGs of the maxillary and mandibular central and lateral incisors of 28 skeletal Class II patients with mandible retrusion treated with non-extraction treatment protocol using elastics and PowerScope. RESULTS: There was no statistically significant difference in root resorption between the groups for the overall score and comparison of root resorption in individual teeth between two groups showed significantly more resorption in PowerScope group in mandibular lateral incisors.CONCLUSION: Both elastic and PowerScope groups showed mostly mild to moderate root resorption which is clinically acceptable and lower lateral incisors showed statistically more root resorption in PowerScope group.

Highlights

External apical root resorption is a common iatrogenic side effect of orthodontic treatment and has been reported in anterior teeth
RVGs of the maxillary and mandibular central and lateral incisors of 28 skeletal Class II patients with mandible retrusion treated with non-extraction treatment protocol using elastics and PowerScope
With the pioneer work of Calvin S Case and Henry A Baker, use of intermaxillary elastics has been a standard procedure for the correction of class II malocclusion.[7,8]

Summary

Introduction

External apical root resorption is a common iatrogenic side effect of orthodontic treatment and has been reported in anterior teeth. Class II malocclusion with mandibular retrusion is one of the major reasons for patients seeking orthodontic treatment.[1,2] Different treatment modalities are available for its treatment depending upon the age, severity of antero-posterior discrepancy, clinical evaluation, cephalometric hard and soft tissue analysis and patient’s compliance etc.[3] One of the most widely used techniques to correct Class II malocclusion in growing patients is functional jaw orthopedics through mandibular advancement to stimulate mandibular growth by forward positioning of the mandible.[4,5,6]. It is simple in design, hygienic, and requires less inventory, delivering consistent forces than the other fixed functional appliances.[11,12,13]

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