Evaluation of angulation between labial & lingual surfaces of crown of anterior teeth & 3D mapping lingual surface for development of concept of new preadjusted lingual bracket

Abstract

Introduction: Lingual orthodontics grew slowly in North America in the 1980s as orthodontists grappled with the lingual technique, which needed distinct treatment planning and a different approach to biomechanics, as well as ergonomics and treatment efficacy difficulties. The early excitement of lingual orthodontic treatment faded with the discovery of "tooth-colored" labial brackets manufactured from single-crystal sapphire and later from ceramics, and much of the improvement of lingual orthodontics occurred outside the United States. Removable orthodontic aligners, rather than lingual braces, have become the treatment option for patients seeking invisible orthodontics with the introduction. The present work focuses of digital analysis and evaluation of angulation between labial & lingual surface of crown of each anterior tooth and lingual curvature for the development of pre adjusted lingual bracket system. Material & Methods: Sample consists of 100 dental cast (maxillary & mandible) and 100 CBCT scans made at Santosh Dental College, Ghaziabad which were selected on the basis of Angle’s Class I molar relationship without any crowding, rotation, attrition, abrasion, erosion, abfraction & anomaly on any tooth with the patient age group between 16 years to 20 years. CBCT scans were taken by KODAK 9500 Cone Beam 3D System (Carestream Health, Inc.