Human dental age estimation combining third molar(s) development and tooth morphological age predictors

In the subadult age group, third molar development, as well as age-related morphological tooth information can be observed on panoramic radiographs. The aim of present study was to combine, in subadults, panoramic radiographic data based on developmental stages of third molar(s) and morphological me...

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Bibliographic Details
Published in:International journal of legal medicine 2012-11, Vol.126 (6), p.883-887
Main Authors: Thevissen, P. W., Galiti, D., Willems, G.
Format: Article
Language:English
Subjects:
Adolescent
Age Determination by Teeth - methods
Age groups
Dentition, Permanent
Female
Forensic Medicine
Humans
Image Interpretation, Computer-Assisted - methods
Male
Mathematical Computing
Medical Law
Medicine
Medicine & Public Health
Molar, Third - diagnostic imaging
Morphology
Odontogenesis - physiology
Odontology
Original Article
Radiography, Panoramic
Regression Analysis
Software
Teeth
Young Adult
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Summary:In the subadult age group, third molar development, as well as age-related morphological tooth information can be observed on panoramic radiographs. The aim of present study was to combine, in subadults, panoramic radiographic data based on developmental stages of third molar(s) and morphological measurements from permanent teeth, in order to evaluate its added age-predicting performances. In the age range between 15 and 23 years, 25 gender-specific radiographs were collected within each age category of 1 year. Third molar development was classified and registered according the 10-point staging and scoring technique proposed by Gleiser and Hunt (1955), modified by Köhler (1994). The Kvaal (1995) measuring technique was applied on the indicated teeth from the individuals’ left side. Linear regression models with age as response and third molar-scored stages as explanatory variables were developed, and morphological measurements from permanent teeth were added. From the models, determination coefficients ( R 2 ) and root-mean-square errors (RMSE) were calculated. Maximal-added age information was reported as a 6 % R ² increase and a 0.10-year decrease of RMSE. Forensic dental age estimations on panoramic radiographic data in the subadult group (15–23 year) should only be based on third molar development.
ISSN:0937-9827
1437-1596
DOI:10.1007/s00414-012-0755-x