Prevalence and Associated Factors of Maxillary Canine Transposition in Subjects Visiting a University Hospital Setup

Tooth transposition is defined as a type of eruption anomaly where there is either an exchange of position between two adjacent teeth, or the development and eruption of a tooth in a position normally occupied by another non-adjacent tooth. The canine is one of the most commonly involved teeth in the transposition phenomenon. Early diagnosis of a developing transposition is extremely important and has a great influence on prognosis. The aim of this study was to assess the prevalence of maxillary canine transposition among patients visiting a private dental college. A retrospective study was conducted using the patient records from Saveetha Dental College, Chennai from June 2019 - April 2020. The study population included case records of patients who reported for orthodontic treatment. Records of 986 patients were screened for transposition of maxillary canines and it was found that only 6 patients had maxillary canine transposition. Data was collected and then subjected to statistical analysis. Microsoft Excel 2016 (Microsoft office 10) data spreadsheet was used to collect data and later exported to SPSS IBM (version 20.0). Descriptive statistics and chi square test were employed with a level of significance set at p<0.05. About 59.4% of the patients who reported for orthodontic treatment were adolescents between the age group of 15-20 years and 40.6% were adults between 20-45 years. 48.02% were male patients and 51.98% were females. The overall prevalence of maxillary canine transposition was 0.61%. The site of transposition was greater in lateral incisors (66.67%) followed by premolars (33.33%). There was a greater prevalence of maxillary canine transposition among adults, female population and patients with class I malocclusion, however it was not statistically significant (p>0.05)