Three-dimensional palatal anatomic characteristics' correlation with dermatoglyphic heterogeneity in Angle...

Area of Science:

• Orthodontics and Dental Anthropology
• Biometrics and Human Genetics

Background:

• Malocclusion, a common dental condition, presents challenges in prediction and diagnosis.
• Dermatoglyphics (DG), the study of fingerprint patterns, has been explored for potential correlations with various health conditions.
• Three-dimensional (3D) scanning offers precise measurement of palatal anatomy.

Purpose of the Study:

• To investigate the correlation between dermatoglyphic patterns and quantitative palatal dimensions.
• To explore the predictive potential of dermatoglyphic characteristics for malocclusion development.
• To analyze these relationships across different Angle malocclusion classes.

Main Methods:

• Analysis of pretreatment dental casts from 477 Saudi Arabian patients across Class I, II, and III malocclusion groups.
• Digital biometric recording of fingerprints for all hand digits.
• 3D scanning of maxillary arches to measure intercanine distance, intermolar distance, palatal height, and palatal area.

Main Results:

• The highest mean palatal surface area was observed in the Class II malocclusion group.
• While most DG patterns were not significantly associated with malocclusion type, the double loop showed a marginal association (P = .05).
• Strong correlations were found between specific DG patterns (simple arch, loop, double loop) and palatal dimensions, suggesting DG heterogeneity can predict palatal size.

Conclusions:

• A novel correlation between dermatoglyphic patterns and 3D palatal anatomy in different malocclusion classes was established.
• While some significant correlations exist between DG characteristics and palatal dimensions, their predictive power for Angle malocclusion is limited.
• Certain DG patterns and palatal area were identified as weak but significant predictors of Angle malocclusion.