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Lip prints (cheiloscopy).

B Sivapathasundharam1, P A Prakash, G Sivakumar

  • 1Department of Oral and Maxillofacial Pathology, Meenakshi Ammal Dental College, Alpakkam Rd, Maduravoyal, Chennai 602102, India.

Indian Journal of Dental Research : Official Publication of Indian Society for Dental Research
|May 4, 2002
PubMed
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Lip prints, or cheiloscopy, offer unique identification patterns similar to fingerprints. This forensic technique analyzes the distinct arrangements of lines on human lips for individual identification.

Area of Science:

  • Forensic Odontology
  • Anthropology

Background:

  • Lip prints, characterized by unique patterns of elevations and depressions on the external lip surface, have been recognized since the early 20th century.
  • Early anthropological descriptions noted lip furrows but lacked practical application until later research.
  • Extensive Japanese research since the 1950s, including studies from 1968-1971, confirmed the individuality of lip print patterns.

Purpose of the Study:

  • To investigate the uniqueness and forensic applicability of lip prints for human identification.
  • To establish the scientific basis for cheiloscopy as a reliable identification method.

Main Methods:

  • Examination of lip prints from 1364 individuals at the department of forensic odontology, Tokyo University.
  • Analysis of the arrangement, patterns, and characteristics of lines on the red part of human lips.

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Main Results:

  • The study confirmed that the arrangement of lines on the red part of human lips is individual and unique.
  • Lip print recording is a valuable tool in forensic investigations for human identification based on lip traces.
  • Clear lip prints with distinct line patterns facilitate individual identification.

Conclusions:

  • Lip prints provide a unique biological characteristic for individual identification, akin to fingerprints.
  • The distinct patterns of lip furrows and grooves can be used in forensic odontology for identification purposes.
  • While clear prints with individual characteristics like scars enhance identification, unclear prints may only allow for group identification.