Conventional microscopy makes perikymata count and spacing data feasible for large samples.

Area of Science:

• Paleopathology
• Bioarchaeology
• Developmental Biology

Background:

• Quantifying dental enamel defects (DDE) is crucial for understanding developmental stress.
• Current methods like histological analysis and SEM are often destructive, costly, or miss subtle defects.

Purpose of the Study:

• To introduce and validate digital light microscopy (DLM) as a non-destructive, accessible method for DDE analysis.
• To assess DLM's efficacy in identifying widened perikymata spacing (WPS) compared to SEM.

Main Methods:

• Photomontages of human canine teeth were created using DLM and SEM.
• Perikymata spacing was measured, and widened perikymata spacing (WPS) was identified using statistical thresholds.
• DLM and SEM data were compared for WPS detection and characterization.

Main Results:

• DLM detected more instances of WPS than SEM.
• Both DLM and SEM provided comparable data on the timing and frequency of developmental stress.
• DLM is a high-power (100×) microscopy technique that is non-destructive and inexpensive.

Conclusions:

• DLM provides a viable, cost-effective, and non-destructive alternative for DDE quantification.
• The DLM method facilitates large-scale population studies for a sophisticated understanding of dental development.
• WPS analysis using DLM enables robust data acquisition for bioarchaeological and paleopathological research.