Comparing and checking for personal identification by using bite mark
- VernacularTitle:咬痕个体识别的比对方法
- Author:
Li LIU
;
Jiacheng REN
;
Hua XU
- Publication Type:Journal Article
- Keywords:
Forensic odontology;
Position of tooth;
Dental arch;
Bite mark;
Personal identification
- From:
Chinese Journal of Forensic Medicine
1986;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a database for models of teeth, which could provide a new technology for personal identification based upon teeth and bite mark for forensic medical practice. Method The (X, Y) digital coordinates were established based up on materials concerning shape and arrangement of the teeth by analyzing samples of 400 models of teeth. The position of every tooth's key point corresponding to the origin was obtained, thus, the characters of tooth and dental arch could be calculated rapidly according to Borland C ++ 5.0 computer language under DOS system. Results The models of teeth could be identified automatically. Among the correlative precision indexes, the length was 1.3mm, the angle was 3?. It seems reasonable to select 12-14 teeth points for studying, which needed about 5-7 complete tooth marks. Conclusion This method is one of the bases in studying personal identification relating to tooth and bite mark.
