Impact of tooth wear on masticatory performance

Area of Science:

• Dental Science
• Biomechanics
• Human Physiology

Background:

• Masticatory performance is influenced by factors including age, gender, bite force, and occlusal units.
• Tooth wear can alter occlusal area and vertical dimension, potentially affecting chewing efficiency.
• Understanding the relationship between tooth wear and masticatory function is crucial for dental health assessment.

Purpose of the Study:

• To evaluate the impact of varying degrees of tooth wear on masticatory performance.
• To investigate the correlation between tooth wear, bite force, occlusal units, and chewing efficiency.

Main Methods:

• Participants with different levels of tooth wear were assessed using the Tooth Wear Index (TWI).
• Occlusal units and bite force were quantified, and masticatory performance was measured via a communition test (median particle size, X50).
• A multiple regression model analyzed the relationship between TWI, age, gender, bite force, occlusal units, and X50.

Main Results:

• 52 participants (40 male, 12 female, mean age 40 years) were included.
• No significant correlation was found between the degree of tooth wear (post-canine TWI score), age, gender, bite force, occlusal units, and masticatory performance (X50).
• Statistical analysis indicated no significant relationship (p > 0.13).

Conclusions:

• The degree of tooth wear did not demonstrate a significant effect on masticatory performance in the studied group.
• While individual effects might exist, group analysis suggests no direct relationship between tooth wear and chewing efficiency as measured.
• These findings indicate that other factors may play a more dominant role in masticatory performance within a larger patient cohort.