Quantification of dental macrowear using 3D occlusal surface topographic measurements in deciduous and permanent molars of children
Bibliographic Data
OBJECTIVES: Childhood paleodietary reconstruction via dental macrowear analysis is limited in part by available methods to measure dental macrowear. We describe a method to quantify dental macrowear progression (in both deciduous and permanent molars) using a handheld intraoral scanner and two 3D occlusal topographic measurements. We assess the agreement of our macrowear proxies with an established qualitative wear scoring system and their relationship to age. MATERIAL AND METHODS: We scanned 92 well-preserved dentitions of immature individuals from the medieval cemetery of St. Pölten in Lower Austria using an intraoral scanner. Two measurements were made on the resulting mesh files-the relative flat surface area in % of the occlusal surface (RFSA%) and the mesial interior slope angle. We estimated the technical error of measurement (TEM). Comparisons were made with the macrowear scoring system-tooth wear index. RESULTS: We found that TEM for both measurements was between 1 and 3%, except the interobserver TEM of RFSA% which was above 5%. Both quantitative measurements generally agree with the established qualitative scores and correlate with age; however, RFSA% does not reliably indicate the progression of macrowear for teeth after dentine exposure occurs. DISCUSSION: The proposed 3D topographic measurements can be made reliably, and within a certain range of wear provide good quantitative proxies of the progression of dental macrowear. Such measurements constitute a promising approach for improving dental macrowear analysis in contexts such as childhood paleodietary reconstruction, which benefit from additional precision in wear rate estimation and present less dentine exposure
Biology · Deciduous · Deciduous teeth · Molar · Permanent teeth · Scanner · Tooth surface · Artificial Intelligence · Computer Science · Dental Erosion and Treatment · Dental Health and Care Utilization · Dentistry · Forensic Anthropology and Bioarchaeology Studies · Geology · Medicine · Orthodontics
Dental Anthropology
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Quantification of dental macrowear using 3D occlusal surface topographic measurements in deciduous and permanent molars of children
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Technical note
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Dental wear scoring technique
Principal axis analysis of dental attrition data
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| Unique citing works | 2 |
|---|---|
| Citations per year | 0,4 |
| Citation span | 2021 - 2024 (4) |
| Citation velocity | recent |
| Highly cited | No |
| Citation types | Neutral: 2 |