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Complete denture soft liners improve bite force, mastication, and life quality: A systematic review and meta-analysis
Yasir Nabeel Al-Mohammad1, Caroline Kelly1,2, Eszter Ágnes Szalai1,2
1Centre for Translational Medicine, Semmelweis University, Budapest, Hungary.
Summary
Soft liners in complete dentures significantly improve bite force, mastication, and quality of life, while reducing pain. Electromyography (EMG) measurements showed no significant changes in masticatory muscle activity.
Area of Science:
- Dentistry
- Prosthodontics
- Biomaterials
Background:
- Complete dentures can lead to discomfort and reduced oral function.
- Soft liners and reliners are used to improve denture fit and patient comfort.
Purpose of the Study:
- To evaluate the effectiveness of soft liners/reliners in complete dentures.
- To assess improvements in mastication, bite force, quality of life, and pain reduction.
Main Methods:
- Systematic literature search of clinical studies in MEDLINE, EMBASE, and CENTRAL databases.
- Included studies compared removable prostheses with and without soft liners.
- Quality and certainty assessed using ROB Tool 2, ROBINS-I, and GRADE.
Main Results:
- Thirty-two articles with 710 patients were analyzed.
- Soft liners significantly improved bite force, masticatory performance, and quality of life.
- A trend of reduced pain was observed, statistically significant with the Visual Analog Scale (VAS).
- No significant differences were found in masticatory muscle EMG amplitude or duration.
Conclusions:
- Soft liners for complete dentures enhance bite force, mastication, and quality of life, while decreasing pain.
- The use of soft liners does not affect masticatory muscle EMG activity.
