Palatal rugae pattern in a Portuguese population: a preliminary analysis

Area of Science:

• Forensic Anthropology
• Dental Morphology

Background:

• Palatal rugae, the ridges on the anterior palate, have been investigated for their potential in racial classification and sex determination.
• Understanding rugae patterns can aid in forensic identification and anthropological studies.

Purpose of the Study:

• To characterize the patterns of the first and third palatal rugae in a Portuguese population.
• To investigate the association between palatal rugae shape and sex in this demographic group.

Main Methods:

• Analysis of 50 plaster casts of palates from a Portuguese population.
• Evaluation of the shape and frequency of first and third rugae.
• Statistical analysis to determine sex-based differences.

Main Results:

• In females, the most common first rugae were straight (right) and curved (left); in males, straight rugae were most prevalent bilaterally.
• The sinuous type was the most frequent third rugae in both sexes and on both sides.
• No statistically significant sexual dimorphism was observed in palatal rugae shape (p > 0.05).

Conclusions:

• Distinct palatal rugae patterns were identified in the Portuguese population studied.
• The findings suggest that palatal rugae patterns may vary between ethnic groups.
• Larger sample sizes are recommended to validate these observations and confirm the absence of sexual dimorphism.