Comprehensive analysis of clinical characteristics of supernumerary teeth in 1218 adolescents from Xuzhou City
Objective This study reviewed and analyzed the clinical data for adolescents with impacted supernu-merary teeth and summarized disease characteristics.Methods A retrospective analysis of clinical and radiographic data was conducted.We examined 1218 cases of supernumerary teeth in adolescents,focusing on parameters such as the sex dis-tribution,number and location of supernumerary teeth,dental developmental stage,and associated complications.Results In the cohort of 1 218 patients,a total of 1 927 supernumerary teeth were detected.The prevalence of supernumerary teeth was significantly higher in boys than in girls,with a ratio of approximately 3.44:1.Most supernumerary teeth(94.48%)oc-curred in the maxillary arch.The presence of two supernumerary teeth was predominant in the primary dentition stage.The mixed dentition period exhibited a varied combination of single and dual supernumerary teeth,whereas the permanent denti-tion was characterized primarily by single supernumerary teeth.Conical-shaped supernumerary teeth were prevalent in the anterior and premolar regions,whereas tuberculate-shaped teeth were frequently observed in the molar areas.Among all su-pernumerary teeth,85.94%were located palatally within the dental arch,8.72%were positioned internally,and 5.35%were situated labially.The complication rate due to supernumerary teeth was 30.36%.Conclusion Supernumerary teeth were observed predominantly in boys and in the maxilla,and presented primarily as one or two teeth,particularly in the palatal aspect of the dental arch.