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Related Experiment Videos

Clinical study of the modified Equipoise clasp.

M de Kok1, C J Thomas

  • 1Department of Dental Prosthetics, University of Stellenbosch, South Africa.

Australian Prosthodontic Journal
|January 1, 1990
PubMed
Summary

The modified Equipoise clasp offers improved aesthetics for dental prosthetics. While patient-reported outcomes for retention and comfort are high, clinical assessments show variable results in retention and oral health.

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Area of Science:

  • Dental Prosthetics
  • Removable Partial Dentures

Background:

  • Traditional clasps for removable partial dentures often present aesthetic concerns, particularly in anterior regions.
  • The modified Equipoise clasp was developed to address these aesthetic limitations.

Purpose of the Study:

  • To evaluate the clinical performance of the modified Equipoise clasp in terms of retention, aesthetics, and oral health.
  • To assess patient satisfaction with the modified Equipoise clasp regarding retention, aesthetics, and comfort.

Main Methods:

  • A follow-up study involving fifteen patients and twenty-two modified Equipoise clasps.
  • Clinical evaluation of clasp retention, aesthetics, and oral health by examiners.
  • Patient-reported outcome measures for retention, aesthetics, and comfort.

Main Results:

  • Examiner-rated retention was good in 45.5% of cases, while patient-reported retention was good in 86.7%.
  • Aesthetics were rated good by 50% of examiners and 80% of patients.
  • Oral health was rated reasonable or good in 90.9% of cases, though the lingual window poses a hygiene challenge.

Conclusions:

  • The modified Equipoise clasp can be successfully used in specific cases, such as Kennedy Class IV, when proper procedures are followed.
  • The clasp is unsuitable for dentitions requiring significant posterior stability (e.g., Class I).
  • Careful patient selection is crucial due to potential adverse effects on oral hygiene from the lingual window.

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