Abstract
Introduction: Very few studies have been done on impacted maxillary central incisors and supernumerary teeth.Objective: To find the prevalence of maxillary central incisor impaction and supernumerary teeth among orthodontic patients attending Dhulikhel Hospital, Kathmandu University Teaching Hospital.Materials & Method: The retrospective study consisted of 787 records of orthodontic patients of age 10-35 years. Dental model and orthopantomograph were retrieved and searched for impacted maxillary central incisors and supernumerary teeth. Incomplete records and patients with known syndromes were excluded from the study. Descriptive statistics was applied to find the prevalence rate and comparison between male and female was done by chi-square test.Result: Out of total samples, 14(1.8%) and 11(1.4%) samples were found to have impacted maxillary central incisors and supernumerary teeth respectively. There was no significant difference in prevalence of impacted maxillary central incisors between male and female samples (p=0.78), however there was significant difference in occurrence of supernumerary teeth between gender groups (p=0.025).Conclusion: The prevalence of impacted maxillary central incisor and supernumerary teeth among orthodontic patients attending Dhulikhel Hospital, Kathmandu University Teaching Hospital is 1.8% and 1.4% respectively. Male patients have higher chance of having supernumerary teeth than female patients
Highlights
Very few studies have been done on impacted maxillary central incisors and supernumerary teeth
There was no significant difference in prevalence of impacted maxillary central incisors between male and female samples (p=0.78), there was significant difference in occurrence of supernumerary teeth between gender groups (p=0.025)
The most common cause of maxillary central incisor impaction is the presence of midline supernumerary tooth.[11,12,13]
Summary
Very few studies have been done on impacted maxillary central incisors and supernumerary teeth. Traumatic causes are obstruction due to soft tissue repair, dilacerations, arrested root development and intrusive luxation.[10] The most common cause of maxillary central incisor impaction is the presence of midline supernumerary tooth.[11,12,13] A recent study by Fardi et al reported the prevalence of supernumerary teeth as 1.8% in which majority were mesiodens. Though there are very few research papers conducted on this aspect, there are plenty of case reports on management of impacted maxillary impacted central incisors.[14,15,16,17,18,19,20,21] The objective of present study is to find the prevalence of maxillary central incisor impaction and supernumerary teeth in patients seeking orthodontic treatment at Dhulikhel Hospital, Kathmandu University Teaching Hospital (DH, KUTH)
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