Parkinson’s disease impairs masticatory function
Clinical Oral Investigations
pp 1-8
pp 1-8
First online:
Abstract
Objective
To evaluate
masticatory function in individuals with Parkinson’s disease (PD) during
levodopa “on” period using new removable dental prosthesis.
Materials and methods
A total of 34 elderly individuals with PD (n = 17, mean age = 69.41 ± 4.65 years) or without PD (n = 17,
mean age = 70.71 ± 4.65 years) were recruited for this study.
Participants received new complete dentures and/or removable partial
dentures. Two months after the subjects were free of any prostheses
discomfort, masticatory function was assessed. A kinesiographic device
was used to measure the range of jaw motion and jaw movements while
chewing a silicone test material (Optocal). Masticatory performance was
determined by median particle size (X50) of the Optocal after
40 masticatory cycles. Maximum bite force was assessed by a strain
sensor placed in the bilateral first molars region. Data were analyzed
by t test (P < 0.05).
Results
The PD group showed a decreased range of jaw motion, longer duration and slower velocity of the masticatory cycle (P < 0.05), higher X50 value, and lower maximum bite force (P < 0.05).
Conclusion
PD patients have impaired masticatory function during levodopa “on” periods compared to controls.
Clinical relevance
Knowledge that PD is
associated with impaired masticatory function is important to dental
professionals in decision making related to prosthetics and general
dental treatment.
Comments