摘要
目的探讨颌面数字X线片(DigitalRadiology,DR)的全口牙型32位编码和测量6项骨性指标的变化特征,评估其在法医学同一认定的价值。方法随机选取颌面DR全景片300例,按设计的编码标准和原则对其全口牙型逐一编码,分析编码的多样性;随机选取颌面DR侧位片100例,由口腔放射科医生和培训过的法医研究生各一人对6项骨性指标(N-S,N-Me,Cd-Gn,Cd-Go,NP-SN,MP-SN)进行准确测量,计算指标的变异系数(CV),并对两人测量结果的一致性进行相关分析。结果(1)300例个人全口牙型编码,总体多样性为75%;牙齿有病变或治疗组的多样性为99.53%;(2)颌面DR侧位片中6项指标变异系数较大;(3)两次测量结果的相关系数均接近1,表明所选指标的测量结果稳定,有高度一致性。结论颌面DR全景片全口牙型32位编码和颌面DR侧位片中6项骨性指标可用于同一认定。
Objective To discuss the coding of full dentition with 32 locations and measure the characteristics of some bony indexes in occlusal-facial digital radiology （DR）. Methods To select randomly three hundred DR orthopantomogram and code the full dentition, then analyze the diversity of dental patterns. To select randomly one hundred DR lateral cephalogram and measure six indexes （N-S,N-Me,Cd-Gn,Cd-Go,NP-SN,MP-SN） separately by one odontologist and one trained forensic graduate student, then calculate the coefficient variation （CV） of every index and take a correlation analysis for the consistency between two measurements. Results （1） The total diversity of 300 dental patterns was 75%.It was a very high value. （2）All six quantitative variables had comparatively high CV value. （3） After the linear correlation analysis between two measurements, all six coefficient correlations were close to 1. This indicated that the measurements were stable and consistent. Conclusion The method of coding full dentition in DR orthopantomogram and measuring six bony indexes in DR lateral cephalogram can be used to forensic identification.
出处
《法医学杂志》
CAS
CSCD
2006年第1期32-35,38,共5页
Journal of Forensic Medicine
关键词
法医放射学
法医牙科学
数字X线片
同一认定
计算机辅助头影测量
forensic radiology
forensic dentistry
digital radiology（DR）
identification
computer-assistedcephalometric
