Radiographic Survey of Third Molar Development in Relation to Chronological Age Among Japanese Juveniles

    Volume 49, Issue 3 (May 2004)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Published Online: 10 March 2004

    Page Count: 5


    Iino, M
    Akita University School of Medicine, Akita,

    Yoshioka, N
    Akita University School of Medicine, Akita,

    Arany, S
    Akita University School of Medicine, Akita,

    (Received 8 November 2003; accepted 10 January 2004)

    Abstract

    The aim of the present study was to establish Japanese reference material on the third molar development of Japanese juveniles for forensic application. Observations were performed on the orthopantomograms of 1282 Japanese patients between the ages of 14.0 and 24.0 years. Demirjian formation stages of the maxillary and mandibular third molars were recorded for chronological evaluation of wisdom teeth and applied for further statistical analysis. Statistically significant differences were noted between the upper and lower jaws and genders. Accordingly, males achieved root developmental grades earlier than females. We assessed the mean ages for all formation grades and predicted the probability that a Japanese juvenile would be older than the relevant ages of 14, 16, and 20 as defined by Japanese Juvenile Law. We determined the likelihood that a Japanese youth is older than the relevant age of 18 as defined by legislation in the United States.


    Paper ID: JFS2003372

    DOI: 10.1520/JFS2003372

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    Title Radiographic Survey of Third Molar Development in Relation to Chronological Age Among Japanese Juveniles
    Symposium , 0000-00-00
    Committee E30