Analysis of dental agenesis patterns of the oligodontia patients using the method of tooth agenesis code

VernacularTitle:缺牙代码法分析单纯型多数恒牙先天缺失的缺牙模式
Author: Jun-Xia ZHU ¹ ; Shu-Guo ZHENG ; Li-Hong GE
Author Information

1. 100081,北京大学口腔医学院·口腔医院儿童口腔科
Keywords: Tooth loss; Tooth agenesis code; Dental agenesis pattern
From: Chinese Journal of Stomatology 2013;48(11):648-652
CountryChina
Language:Chinese
Abstract: Objective To analyze the common dental agenesis patterns of the oligodontiapatients.Methods The information of 64 oligodontia patients was collected,including the histories,oral examinations and panoramic radiographs.The Tooth Agenesis Code (TAC) procedure was used to analyze the agenesis pattern of each quadrant.Results In the maxilla,63％ (40/64) (right side) and 58％ (37/64) (left side) could be described using eight different patterns.The most common pattern was agenesis of the maxillary lateral incisor,canine and both premolars.In the mandible,52％ (33/64) (right side) and 53％(34/64) (left side) of the patients could be described using only five different patterns,the most common pattern was agenesis of both mandibular premolars.Conclusions Common patterns of tooth agenesis were successfully identified in non-syndromic oligodontia patients.