Agenesias dentárias em pacientes portadores de fissuras labiopalatinas : estudo de prevalência.

Abstract

Cleft lip and palate are facial congenital malformations, and are often associated with dental agenesis, which occur more frequently on the cleft side and site. Among the most prevalent dental agenesis, the maxillary lateral incisor stands out. The objective of this study was to determine the prevalence of dental agenesis of maxillary lateral incisor and second premolar in patients with orofacial clefts treated at Fundação para Reabilitação das Deformidades Crânio-Faciais (Lajeado, RS). In this cross-sectional study it was evaluated the orthodontic documentation and treatment plans in 959 records, including the variables: age, gender, place of birth, cleft type and dental agenesis related to the fissure or cleft. The variables were associated through non-parametric statistical test Chi-square. The prevalence of tooth agenesis in the study population was 74.1% (711); the most affected teeth were the maxillary lateral incisors,12 and 22, presenting 44.2% (424) and 54.0% (518) respectively. The dental agenesis was significantly associated with male gender (p <0.001) and left unilateral transforaminal fissure (p <0.001). It was concluded that in the study population, the most prevalent dental agenesis is the maxillary lateral incisor, the uttermost affected gender is male and the greater cleft was the transforaminal fissure.