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Journal of Dental Research
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Application to Forensic Odontology of Aspartic Acid Racemization in Unerupted and Supernumerary Teeth

T. Ogino

Department of Oral Surgery, Tokyo Women's Medical College, Kawada-cho 10, Shinjuku-ku, Tokyo, 162, Japan

H. Ogino

Department of Industrial Chemistry, Tokyo Metropolitan University, Fukasawa 2-1-1,Setagaya-ku, Tokyo, 158, Japan

Racemization of aspartic acid in dentin protein during the human lifetime progresses with age. The extent of racemization of aspartic acid in coronal dentin of normal permanent teeth can be used in forensic odontology to estimate the age of an individual at the time of death (Ogino et al., 1985). A series of experiments was conducted with dentin separated from unerupted and supernumerary teeth of various ages in an attempt to evaluate the advantages and limitations of this age-estimation method. The current study on nine tooth specimens showed that some unerupted permanent teeth with normal-sized and -shaped crowns (impacted third molar, canine, and incisor) could be used to estimate the age of individuals at the time of death within ± 4 years. However, supernumerary teeth (mesiodens, paramolar) with extremely tiny (length of crown: 4~5 mm) and abnormally shaped crowns could not be used for analysis. In such cases, the estimated age of individuals analyzed by the racemization method deviated considerably from their actual age.

REFERENCES

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Journal of Dental Research, Vol. 67, No. 10, 1319-1322 (1988)
DOI: 10.1177/00220345880670101501
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This Article
Right arrow Abstract Freely available
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
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Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
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Right arrow Add to Saved Citations
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Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via Google Scholar
Right arrow Citing Articles via Scopus
Google Scholar
Right arrow Articles by Ogino, T.
Right arrow Articles by Ogino, H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Ogino, T.
Right arrow Articles by Ogino, H.
Social Bookmarking
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What's this?