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2-Methacryloyloxyethyl Phosphorylcholine Polymer Treatment of Complete Dentures to Inhibit Denture Plaque Deposition
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Adaptation to new complete dentures-is the neuromuscular system outcome-oriented or effort-oriented?
Lydia Eberhard1, Keunyoung Oh2, Constantin Eiffler2
1Department of Prosthodontics, University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany. Lydia1.eberhard@med.uni-heidelberg.de.
Clinical Oral Investigations
|February 28, 2018
Summary
Complete denture wearers experience improved masticatory performance after a 3-month adaptation period. While muscle work initially decreased, it returned to baseline levels, indicating functional adaptation. Subjective improvements, however, did not fully align with objective measures.
Area of Science:
- Dentistry
- Biomedical Engineering
- Biomechanics
Background:
- Complete dentures are essential for restoring masticatory function in edentulous patients.
- The stomatognathic system requires an adaptation period to optimize function with new complete dentures.
- Understanding the interplay between masticatory performance, muscle activity, and subjective well-being is crucial for complete denture success.
Purpose of the Study:
- To investigate the adaptation strategy of the stomatognathic system in complete denture wearers.
- To evaluate changes in masticatory performance and muscle workload during the adaptation period.
- To compare objective functional measures with subjective patient-reported outcomes.
Main Methods:
- Thirty-two patients were fitted with new complete dentures.
- Masticatory performance was assessed using artificial test food (Optocal) and particle size analysis.
- Surface electromyography (EMG) of masticatory muscles and the OHIP-49 questionnaire were used to measure muscle work and subjective well-being, respectively.
Main Results:
- Masticatory performance significantly improved after 3 months of denture adaptation (p=0.016).
- Total muscle work initially decreased post-denture insertion but recovered to baseline levels after adaptation (p=0.004, p=0.028).
- Subjective outcomes (OHIP-49 scores) showed significant improvements across all subscales (p<0.001).
Conclusions:
- Masticatory performance and function improve over the adaptation period with complete dentures.
- Subjective improvements may overestimate actual functional gains, highlighting the need for objective assessment.
- A dedicated adaptation period is essential for accurately evaluating functional outcomes in complete denture wearers.
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