The periodontal status of mandibular incisors in patients with angle’s class ii malocclusion treated with orthodontic therapy or orthognathic surgery with orthodontic therapy: A single centered retrospective study

Abstract

Malocclusion is any deviation from physiologically acceptable contact between opposing dental arches. Occlusal trauma is a term used to describe injury resulting in tissue change within the attachment apparatus which may occur in a healthy or reduced periodontium. Clinically one of the tests to assess trauma from occlusion is the fremitus test with confirmatory test for trauma from occlusions such as histological evaluation of a block section biopsy or modern aids like T-scan.  Considering these findings Angles Class  II molar relation with or without skeletal Class II relation has great influence in underlying peridium. The present study was aimed at correlating the relation between angles class II malocclusion treated with orthodontic therapy alone or combined with orthognathic surgery and the periodontal status of mandibular incisors. The study was a single centered retrospective university design, using patient records for the comparison of the entire patient outflow of a dental college in Chennai from 1st June 2019 till 1st March 2020. The included patients were individuals with angles class II malocclusion treated by orthodontic therapy alone or combined with orthognathic surgery. In this study, we observed that the periodontal status of mandibular incisors was mostly healthy with the incidence of gingivitis associated at a higher tendency in patients treated by fixed orthodontic appliance therapy along with orthognathic surgery. There was also a negative correlation of non-extraction cases and periodontal status suggesting orthodontic extraction cases have a relatively healthy periodontium which was both clinically and statistically significant.