Non-syndromic hypodontia (NSH) in permanent teeth – epidemiological study

Abstract

Aim. Assessment of characteristics of non-syndromic hypodontia (NSH) in permanent teeth (PT) in a group of Romanian children and adolescents. Material and method. Descriptive retrospective observational study on dental files and orthopantomograms of 138 patients (59 boys) aged between 5-17 years (mean age = 11.96±3.13 years) from Pedodontics Clinic Bucharest and from 3 private clinics. The topography of hypodontia, number of missing teeth and their distribution according to age and sex were assessed. Statistical analysis was performed using SPSS 20.0 (p 0.05). The most frequent teeth affected by NSH were second lower premolars (37.27%), followed by upper lateral incisors (29.75%) and upper second premolars (16.48%). Conclusions. In the study sample reduced unilateral lower hypodontia was most frequent. Early diagnose of NSH is important in order to apply specific treatments as quickly as possible, ensuring the harmonious growth and development of the dento-maxillary apparatus.

Keywords

• non-syndromic hypodontia
• permanent teeth
• children
• adolescents