Relationship between palatal coverage and accuracy of texture perception: A preliminary study using an experimental...

Area of Science:

• Oral sensory science
• Dental prosthetics
• Human sensory perception

Background:

• Accurate texture perception is crucial for oral functions like eating.
• Denture use can alter oral sensations, potentially impacting user experience.
• Understanding how palatal coverage affects sensory input is key for improving denture design.

Purpose of the Study:

• To investigate the impact of palatal coverage on texture perception accuracy.
• To assess effects on thickness discrimination, roughness discrimination, and roughness detection.
• To evaluate these effects in healthy young adults using an experimental palatal plate.

Main Methods:

• Thirty-four healthy participants underwent texture perception testing.
• An experimental palatal plate was used to simulate palatal coverage.
• Thresholds for thickness discrimination (T_dis), roughness discrimination (R_dis), and roughness detection (R_det) were measured with and without the plate.

Main Results:

• The palatal plate significantly reduced accuracy for T_dis and R_dis.
• No significant effect was observed on R_det.
• Reduced accuracy was more pronounced in individuals with higher baseline sensory performance.

Conclusions:

• Palatal coverage negatively affects texture discrimination abilities.
• Individual differences in texture perception are significant.
• Findings suggest texture perception assessment could inform prosthodontic treatments for denture wearers.