You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.

    Volume 40, Issue 5 (September 1995)

    Studies on Age Estimation Using Racemization of Aspartic Acid in Cementum

    (Received 19 October 1994; accepted 10 January 1995)

    CODEN: JFSOAD

      Format Pages Price  
    PDF 3 $25   ADD TO CART

    Cite this document

    X Add email address send
    X
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word



    Abstract

    An attempt was made to estimate the age of cementum using the racemization method, which focuses on the ratio of D- and L-aspartic acids (referred to as the ‘D/L ratio’). Using the whole cementum, the correlation coefficients between the D/L ratio and age were r = 0.984 to 0.997. When the use of incisors and premolars was compared, the former gave better results than the latter. We then made a comparison of cementum, enamel and dentin, using a first premolar from the same individual. For each component tissue the correlation of D/L ratio with the actual age was calculated and the highest value was shown for dentin at r = 0.992, followed by cementum at r = 0.988 and enamel at r = 0.961. These results show that the racemization reaction in cementum proceeds at a constant rate, and confirm that cementum, like dentin, is a tissue with very low metabolism. Therefore, it is clear that accurate estimation of age is practically possible using the amino acid racemization method for cementum.


    Author Information:

    Ohtani, S
    Kanagawa Dental College,


    Stock #: JFS15388J

    ISSN: 0022-1198

    DOI: 10.1520/JFS15388J

    ASTM International
    is a member of CrossRef.

    Author
    Title Studies on Age Estimation Using Racemization of Aspartic Acid in Cementum
    Symposium , 0000-00-00
    Committee E30