Oana Lăduncă, Zetu Irina, Petcu Ana, Nemtoi A, Dragan Eliza, Haba Danisia
Faculty of Dental Medicine, University of Medicine and Pharmacy Grigore T. Popa, Iasi.
Department of Orthodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy Grigore T. Popa, Iasi.
Rev Med Chir Soc Med Nat Iasi. 2013 Jan-Mar;117(1):212-6.
The impaction phenomenon is a pathological condition which is defined as the lack of eruption of a permanent tooth in the oral cavity. After third molar, the first permanent tooth impacted in the alveolar bone is the permanent maxillary canine, with varies from 1% to 3%. The aim of this study was to use the most recently imaging technique--CBCT, to evaluate the position of the impacted maxillary canine and to determinate the severity of root resorption of the adjacent teeth.
The all 230 patients of this study were referred to a CBCT scanning with Scanora machine and only the region of clinical interest was irradiated.
The age of the subjects was distributed between the ages of 11 and 42 years. From a total of 364 impacted canine teeth, 92 were side impacted canines, 97 right impacted canines and 87 were left impacted canines.
We report a lateral incisors root resorption present in 54.37% and 24.29% the resorption of central incisors.
The use of CBCT in patients with impacted canines has potential diagnostic and may influence the planning of treatment. Also the CBCT can be a genuine method used to rectify, to diagnose and to make a suggestive treatment for the resorption of the root of incisors.
阻生现象是一种病理状况,定义为口腔内恒牙萌出受阻。除第三磨牙外,牙槽骨中最常发生阻生的恒牙是上颌恒尖牙,发生率为1%至3%。本研究的目的是使用最新的成像技术——锥形束计算机断层扫描(CBCT),评估上颌阻生尖牙的位置,并确定相邻牙齿牙根吸收的严重程度。
本研究的230例患者均使用Scanora机器进行CBCT扫描,仅对临床感兴趣的区域进行照射。
受试者年龄分布在11岁至42岁之间。在总共364颗阻生尖牙中,92颗为侧切牙阻生,97颗为右侧尖牙阻生,87颗为左侧尖牙阻生。
我们报告侧切牙牙根吸收发生率为54.37%,中切牙牙根吸收发生率为24.29%。
CBCT在阻生尖牙患者中的应用具有潜在的诊断价值,可能会影响治疗方案的制定。此外,CBCT可作为一种用于矫正、诊断和提示切牙牙根吸收治疗的有效方法。