Aneta Munteanu, Mihaela Tănase, Arina Vinereanu, Ioana-Andreea Stanciu
Abstract
Aim: to assess the characteristics of second premolar agenesis patterns in a sample of patients attending a University Pedodontics Department from Bucharest, Romania.
Material and methods: Cross-sectional study on a sample of 210 patients (91 boys, 119 girls) aged between 6 and 17 years diagnosed with hypodontia in permanent teeth (excluding third molars). The frequency of second premolar agenesis, sex and age distribution of patients with this pathology, distribution of second premolar agenesis according to the topography and number and its association with anomalies of other permanent teeth were assessed.
Results: a) The sequence of missing teeth – in boys: lower second premolars>upper lateral incisors>lower central incisors, in girls: lower second premolars>upper lateral incisors>upper second premolars; b) The frequency rate of agenesis of second premolars was 57.61% (n=121) for the entire sample, 56.04% for boys and 58.82% for girls (NS, p=0.688); c) One second premolar was missing most frequently in boys, while the percentage of girls with 2-4 missing second premolars was almost double than in boys; d) Boys had a similar proportion of unilateral and bilateral agenesis of second premolars, while girls exhibited more frequently bilateral agenesis of these teeth; e) 21.48% of the patients with agenesis of second premolars exhibited anomalies of other permanent teeth, excluding third molars and the most commonly association was between missing second premolars and agenesis of upper lateral incisors.
Conclusion: Lower second premolar was the most commonly missing tooth both in boys and girls. In one fifth of the cases, agenesis of second premolar was associated with anomalies of other permanent teeth. Early diagnosis of this dental anomaly is important to allow best long-term approach.
DOI : 10.62610/RJOR.2025.1.17.2
Loading...
Reload document 
Open in new tab