Abstract

Comparison between Lingual and Labial Orthodontics Based on Treatment of overbite by Using Rocking Chair Arch Wire-A Biomechanical Study

Highlights

  • A deep overbite is a common and complex orthodontic problem of many malocclusions[1]

  • In the intrusion using Lingual Rocking Chair Arch (RCA), to avoid the traumatic force to teeth, the curve depth should be lesser than Labial RCA or apply more elastic arch material; Aligning different inclined teeth into normal inclination firstly and proceed with the application of intrusive force can be the best approach

  • The force produced by all wires of Standard and Mushroom shaped RCA was measured using Electromechanical Universal Testing Machine and the obtained data is shown in Table-II

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Summary

Introduction

A deep overbite is a common and complex orthodontic problem of many malocclusions[1]. Due to the potential deleterious effects on the temporomandibular joint, periodontal health and facial aesthetics, correction of a deep overbite is considered as an important part of orthodontic treatment[1]. The action of the orthodontic appliance in overbite correction is based on the incisor Two major orthodontic intrusion techniques for maxillary anterior dentition has been developed: the segmented arch and bioprogressive[4]. Lingual orthodontics (LiO) has developed rapidly in recent years and research on treatment of overbite by using Rocking Chair Arch (RCA) wire of different curve depths is still limited, especially with 3-dimensional Finite Element (FE) models. The main objectives are to study the biomechanical differences in maxillary anterior teeth between lingual and labial orthodontics and observe the lingual mechanics on different inclinations of teeth

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