Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (44): 8246-8250.doi: 10.3969/j.issn.2095-4344.2012.44.015

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Identification for digital orthopantomography of adult Chinese Han population in Shenzhen Area

Wang Yao1, 2, Zhang Yan-fu2, Xu Zhen-bo2, Zhang Fu1, Yin Xiao-jun1, Lai Yue1, 2   

  1. 1Southern Medical University, Guangzhou 510515, Guangdong Province, China
    2Shenzhen Criminal Science and Technology Institute, Shenzhen 518040, Guangdong Province, China
  • Received:2012-03-21 Revised:2012-07-20 Online:2012-10-28 Published:2012-10-28
  • Contact: Lai Yue, Chief forensic physician, Master, Southern Medical University, Guangzhou 510515, Guangdong Province, China; Shenzhen Criminal Science and Technology Institute, Shenzhen 518040, Guangdong Province, China szlaiyue@sina.com
  • About author:Wang Yao★, Studying for master’s degree, Southern Medical University, Guangzhou 510515, Guangdong Province, China; Shenzhen Criminal Science and Technology Institute, Shenzhen 518040, Guangdong Province, China aliluyawy@126.com

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Abstract:

BACKGROUND: To date, we have reached a consensus of forensic dental identification according to physiological and anatomical characteristics and pathological changes of the teeth, jaw bones and its adjacent structures, as well as the individual identification of various treatments for teeth. However, with the growing of awareness of oral health and the development of dental treatment method, dental problems are gradually reducing. Thus, identification only depends on dental disease and treatment characteristics cannot meet the current situation.
OBJECTIVE: To investigate the distribution frequency of surveying indexes of mandibular teeth and mandible in segment assignment section for the digital panoramic tomography of Chinese Han population in Shenzhen with oral lesions and trauma, and to evaluate its value in individual identification.
METHODS: The digital dental orthopantomograms of 200 adults in Shenzhen were accurately measured with E-film Workstation2.12 software. And the data were statistically analyzed with Microsoft Office Excel 2003 and SPSS 16.0 software.
RESULTS AND CONCLUSION: The frequency of each observed index was different. The maximal one was 96.5%. The maximal matching probability of the section-numbers between two homologous dental orthopantomograms was 77.53% and the minimal was 69.66%. While the maximal matching probability of the section-numbers between two non-homologous dental orthopantomograms was 42.70％. The distribution frequencies surveying indexes of mandibular teeth and mandible in segment assignment section on dental orthopantomograms are polymorphic, and the method is suitable for forensic identification.

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