Dental anomalies in an orthodontic patient population with maxillary lateral incisor agenesis

Abstract

Introduction: The purpose of this study was to evaluate the prevalence of dental anomalies in a subpopulation of orthodontic patients with agenesis of maxillary lateral incisors (MLI). Methods:The material of the present study included the records of the 1964 orthodontic patients. Panoramic radiographs and dental casts were used to analyze other associated eight dental anomalies, including agenesis of other teeth, dens invaginatus, dens evaginatus, peg shaped MLI, taurodontism, pulp stone, root dilaceration and maxillary canine impaction. Results: Out of the 1964 patients examined, 90 were found to have agenesis of MLI, representing a prevalence of 4.6%. The most commonly found associated-anomalies were agenesis of other teeth (23.3%), peg-shaped MLIs (15.6%), taurodontism (42.2%), and dilacerated teeth (18.9%). Conclusion:Permanent tooth agenesis, taurodontism, peg-shaped maxillary lateral incisor, and root dilacerations are frequently associated with maxillary lateral incisor agenesis.

Relation of Dental Anomalies with Occlusal Alterations in the Pediatric Patients

“…Agenesis may also be associated with other dental malformations such as taurodontism, transposition, microdontia, ectopic eruption and supernumerary teeth [1,3,6,18,21]. Supernumerary teeth are teeth that exceed the normal serial number [28].…”

“…There are a myriad of expressions of dental agenesis, including microdontia, deviations in dental morphology and ectopic [1]. Dental developmental anomalies may have their etiology related by factors of traumatic nature, genetic and environmental factors in particular during the stages of morphodifferentiation or histodifferentiation of dental development, these changes in odontogenesis being characterized as deviations from normality [1][2][3][4][5][6][7][8].…”

“…Evidence indicates the importance of early diagnosis of dental anomalies, since it favors prognosis, better planning of orthodontic and / or surgical-prosthetic treatment, and may prevent or minimize extensive interventions and / or intercept in problems of development of permanent dentition [6,9,10,15,21]. However, previous studies report only the association and the frequency between dental agenesis and other dental anomalies, and few studies have identified, through evidence, the relation of dental anomalies with malocclusion in the infant patient [8], without considering the findings with the skeletal facial pattern of each child patient.…”

Avaliação da prevalência de agenesia de incisivos laterais superiores dos pacientes da Faculdade de Odontologia do Centro Universitário da Serra Gaúcha

“…De acordo com Citak et al (18), os incisivos laterais superiores apresentaram uma predominância de 4,58% de agenesia, para o sexo feminino 5,3% e para o masculino 3,5%, sendo a diferença entre homens e mulheres não significativa neste estudo. Foi encontrado a agenesia bilateral (68,9%) e para unilateral (31,1%).…”

“…As agenesias em dentes permanentes ocorrem entre 2 a 17% na população, podendo ocorrer de forma unilateral ou bilateral. No caso do ILS, a frequência de 1 a 2% bilateral, acometendo tanto homens quanto mulheres, entretanto estudos mostram superioridade no sexo feminino (5,6).…”