The skeletal morphology of temporomandibular joints in patients with unilateral posterior scissors bite by using cone-beam computed tomography
10.3969/j.issn.1671-8348.2013.29.011
- VernacularTitle:基于锥形束CT 成像的单侧后牙正锁患者颞下颌关节骨性结构
- Author:
Lin LIU
;
Huiyi CHEN
;
Mengxuan DENG
;
Xiaoping YUAN
- Publication Type:Journal Article
- Keywords:
temporomandibular joint;
scissors bite;
condylar process;
articular fossa;
cone beam computer tomography
- From:
Chongqing Medicine
2013;(29):3493-3495
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the skeletal characteristics of temporomandibular joint in patients with unilateral posterior scis-sors bite by using the cone-beam computed tomography(CBCT) .Methods Thirty-five patients of Angle class Ⅰ were scanned by CBCT (19 cases with unilateral scissors bite as the experimental group and 16 cases without scissors bite as the control group ) The CT images were reconstructed into 3D computer models by using the Dental Volume Reformat Function of the Ondemand 3D pack-age .9 anatomical landmarks were located and all data of 11 measured value were statistically analyzed .Results There were statisti-cal differences in the skeletal characteristics of temporomandibular joint in the scissors-bite side of the experimental group compared with those in the non-scissors-bite side (P<0 .01) .The side-to-side differences of the skeletal characteristics of temporomandibular in the controlled group were not statistically significant (P>0 .05) .There were statistical significances in the skeletal characteris-tics of temporomandibular joint of the controlled group compared with those in the scissors-bite side of the experimental group ,and the same with those in the non-scissors-bite side (P<0 .01) .Conclusion The CBCT is an effective tool to analyze the skeletal char-acteristics of temporomandibular joint characteristics .There were differences in the morphology of the condyle and the glenoid fossa of patients with unilateral posterior scissors bite .
