TY - JOUR
T1 - Dental Age Estimation—Root Pulp Visibility (RPV) patterns
T2 - A reliable Mandibular Maturity Marker at the 18 year threshold
AU - Lucas, Victoria S.
AU - McDonald, Fraser
AU - Andiappan, Manoharan
AU - Roberts, Graham
PY - 2017/1/1
Y1 - 2017/1/1
N2 - The purpose of this paper was to explore the potential application of Root Pulp Visibility (RPV) to determine whether or not a subject of unknown date of birth is under or over the 18 year threshold. Patients, materials and methods Two thousand Dental Panoramic Radiographs comprising equal numbers of females and males evenly distributed between the ages of 16 and 26 years were examined. All third molars were scored using the Anglo-Canadian 8 Stage Tooth Development system [1]. The Lower Left Third Molar was censored to avoid redundant data being included in the data array for the Age at Attainment of Stage H, the final stage of tooth development (Roberts et al., 2015 [2]). A filter cascade was applied to the data to select the data array for 1. Teeth in the final stage of development, 2. Female or male gender, 3. The definitive stage of RPV: RPV-A, RPV-B, RPV-C, or RPV-D. Results The summary data for each of these stages was derived and the minimum value for each was used to determine the relationship of the minimum value of A, B, C or D to the 18 Year threshold. It was found that for both females and males the minimum value for RPV-A and RPV-B indicated that subjects displaying this could be under 18 years old. For RPV-C and RPV-D, the minimum values show unequivocally that for both females and males the subject was over 18 years old. Conclusion RPV has an important role in unambiguously determining whether a subject is below or above the 18 year threshold.
AB - The purpose of this paper was to explore the potential application of Root Pulp Visibility (RPV) to determine whether or not a subject of unknown date of birth is under or over the 18 year threshold. Patients, materials and methods Two thousand Dental Panoramic Radiographs comprising equal numbers of females and males evenly distributed between the ages of 16 and 26 years were examined. All third molars were scored using the Anglo-Canadian 8 Stage Tooth Development system [1]. The Lower Left Third Molar was censored to avoid redundant data being included in the data array for the Age at Attainment of Stage H, the final stage of tooth development (Roberts et al., 2015 [2]). A filter cascade was applied to the data to select the data array for 1. Teeth in the final stage of development, 2. Female or male gender, 3. The definitive stage of RPV: RPV-A, RPV-B, RPV-C, or RPV-D. Results The summary data for each of these stages was derived and the minimum value for each was used to determine the relationship of the minimum value of A, B, C or D to the 18 Year threshold. It was found that for both females and males the minimum value for RPV-A and RPV-B indicated that subjects displaying this could be under 18 years old. For RPV-C and RPV-D, the minimum values show unequivocally that for both females and males the subject was over 18 years old. Conclusion RPV has an important role in unambiguously determining whether a subject is below or above the 18 year threshold.
KW - 18 year threshold
KW - Dental Age Estimation
KW - Mandibular Maturity Marker
KW - Root Pulp Visibility
KW - Tooth Development Stage
UR - http://www.scopus.com/inward/record.url?scp=85000979528&partnerID=8YFLogxK
U2 - 10.1016/j.forsciint.2016.11.004
DO - 10.1016/j.forsciint.2016.11.004
M3 - Article
AN - SCOPUS:85000979528
SN - 0379-0738
VL - 270
SP - 98
EP - 102
JO - Forensic Science International
JF - Forensic Science International
ER -