Effect of Various Esthetic Clasp Materials on the Retentive Capacity of Circumferential Clasp Assembly - An Invitro Study.
Journal Title: International Journal of Dental Science and Innovative Research (IJDSIR) - Year 2019, Vol 2, Issue 1
Abstract
Introduction: Retention achieved in removable partial dentures through Cobalt Chromium clasp assemblies has shown to be clinically successful. However, due to poor aesthetics, attention has been drawn towards developing materials that could yield sufficient retentive forces with better aesthetic outcome. The role of resins as a replacement for metal components of clasp assemblies has been under study. Objective: To evaluate and to compare the retention of circumferential clasps made of different materials. (i.e Cobalt-Chromium, Flexible resin, Polyoxymethelene and Semi-flexible resin.). Methodology: A mandibular partially edentulous acrylic model of Kennedy’s class 1 situation was prepared using cold cure resin. The model incorporated natural teeth as abutments. Standardized clasp assemblies were fabricated with Cobalt-Chromium, Flexible resin, Acetal resin and Semi-flexible resin on this model. The clasps assemblies were attached to the universal testing machine and their dislodging forces were recorded. The data was statistically analyzed. Results: Cobalt Chromium clasp assemblies showed higher retentive capacity [12.40 N] than clasps fabricated with flexible resins [3.83 N-5.29 N] Conclusion: The study led to the conclusion that the retentive capacity of all the clasp materials tested in the study was sufficient for prostheses to withstand the dislodging forces. Clinical Significance: All the clasp materials tested in the study can be successfully incorporated into partial dentures with the additional advantages of favorable aesthetics.
Authors and Affiliations
Dr. Kondumahanti V. N. Avinash
Keywords
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