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Related Experiment Videos

Method for enhancing retention in complete denture bases.

M Kikuchi1, F Ghani, M Watanabe

  • 1Tohoku University School of Dentistry, Sendai, Japan. kikuchi@mandible.dent.tohoku.ac.jp

The Journal of Prosthetic Dentistry
|March 30, 1999
PubMed
Summary
This summary is machine-generated.

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Air-particle abrasion of denture fitting surfaces significantly improved retention by over twofold. This simple surface modification enhances denture stability and patient comfort, offering a practical solution for improved denture adhesion.

Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering
  • Prosthodontics

Background:

  • Denture retention relies on the adhesion of salivary films to the denture base and oral tissues.
  • Several factors can influence this crucial adhesion, impacting denture stability.

Purpose of the Study:

  • To investigate how altering the fitting surface texture affects denture retention.
  • Specifically, to determine the impact of air-particle abrasion on the retentive forces of palatal denture bases.

Main Methods:

  • Ten dentate subjects without oral pathologies were fitted with mucosal-supported palatal bases.
  • Retention forces were measured using a strain gauge transducer before and after air-particle abrasion (50-microm grit alumina) of the fitting surface.
  • Statistical analysis included a 2-sample Student t test and a paired t test.

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Main Results:

  • Significant variations in retention forces were observed within and between subjects.
  • Air-particle abrasion of the fitting surface resulted in a statistically significant (P <.05) increase in mean retention forces, exceeding twofold.
  • The enhanced retention values approached those of previously studied well-fitting denture bases.

Conclusions:

  • Good denture adaptation remains critical for retention.
  • Air-particle abrasion of the denture fitting surface offers a viable method to significantly improve denture retention.
  • This surface treatment presents a supplementary approach to enhance the stability and performance of dentures.