Comparison of Increase in Masticatory Efficiency Between Removable Partial Dentures Retained With Clasps and Retained...

Area of Science:

• Dental Prosthetics
• Biomaterials Science
• Oral Rehabilitation

Background:

• Masticatory efficiency is crucial for patient well-being and nutritional intake.
• Removable partial dentures (RPDs) are common prosthetic solutions for missing teeth.
• Evaluating the performance of different RPD retention systems is essential for optimizing treatment outcomes.

Purpose of the Study:

• To compare the masticatory efficiency of clasp-retained versus attachment-retained removable partial dentures (RPDs).
• To assess the changes in masticatory efficiency over time following RPD insertion.
• To identify factors influencing masticatory performance in RPD users.

Main Methods:

• A cohort of 107 patients with 138 RPDs (87 clasp-retained, 51 attachment-retained) was studied.
• Masticatory efficiency was quantified by measuring peanut breakdown using spectrophotometry (590 µm).
• Measurements were recorded before insertion and at 1 and 3 months post-insertion.

Main Results:

• Masticatory efficiency improved significantly for all RPDs over the 3-month period.
• Attachment-retained RPDs demonstrated superior efficiency compared to clasp-retained RPDs at 3 months (p=0.001).
• Improvements were consistent across various denture support types, with Triangular and Quadrangular supports showing notable gains.

Conclusions:

• RPD use substantially enhances masticatory efficiency, with benefits becoming more pronounced at 3 months.
• Attachment-retained RPDs offer better long-term masticatory performance than clasp-retained RPDs.
• Time is a significant factor in improving masticatory function, regardless of RPD design, emphasizing tailored prosthetic rehabilitation.