Chewing patterns in dentate and complete denture wearers - recorded by light-emitting diodes

Area of Science:

• Biomedical Engineering
• Dental Mechanics
• Biomechanics

Background:

• Chewing is a complex biomechanical process crucial for mastication and overall health.
• Complete dentures can alter the natural biomechanics of the mandible during mastication.
• Understanding these alterations is vital for optimizing denture design and patient function.

Purpose of the Study:

• To compare the chewing patterns of dentate (natural teeth) and edentulous (complete denture wearers) individuals.
• To analyze differences in chewing rhythm, mandibular displacement, and velocity.
• To investigate potential adaptations in chewing patterns due to complete denture use.

Main Methods:

• Utilized a computer-based Selspot system with light-emitting diodes and photosensitive detectors.
• Recorded and analyzed the chewing patterns of ten dentate and eleven edentulous subjects.
• Compared key parameters including chewing rhythm, mandibular displacement, and velocity.

Main Results:

• Dentate subjects demonstrated a significantly higher chewing rhythm compared to edentulous subjects.
• Mandibular velocity during chewing was greater in the dentate group.
• Dentate individuals exhibited larger chewing cycles than those wearing complete dentures.

Conclusions:

• Significant differences exist in chewing patterns between dentate and edentulous individuals.
• The observed differences suggest adaptation to the biomechanical demands of complete denture use.
• Findings highlight the impact of masticatory status on mandibular motor control during function.