Retention of Probase Hot Versus the Conventional Heat-Cured Acrylic Resin Denture Bases

Noha A El Sharkawi¹, Ibrahim M Hamouda^2,3*, Amira M Gomaa⁴ and Ali H El Shkouki⁵

Received: August 14, 2017;   Published: September 06, 2017

DOI: 10.26717/BJSTR.2017.01.000329

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Abstract

This study compared the retention of proBase hot versus a conventional heat-cured acrylic resin denture bases. Two completely edentulous patients of U-shaped and V-shaped palatine vault. Primary and secondary impressions of the maxillary arch were done to produce two master casts. Each master cast was duplicated into twenty-one stone casts using duplicating hydrocolloid. Standardized maxillary waxed denture bases were produced by duplication using silicone impression material. Twenty-one standardized denture bases for each tested (U- and V- shaped) maxillary arches were obtained. Stainless steel wire loops were placed at a vertical direction in the marked center of each waxed denture base for dislodging each acrylic denture base from its basal seat to measure its retention. Fourteen waxed denture bases constructed for each of U- and V-shaped palatal vault were processed into conventional heat cured acrylic, while the other seven waxed denture bases were processed into ProBase Hot denture bases as recommended by the manufacturer. A digital force meter was used for retention measurement. The results indicated a significant differences between the tested materials and the two arch forms. ProBase Hot showed the highest retention than that of the conventional acrylic resin (Acrostone) either long- curing or short-curing method.

Keywords: Denture Base Materials; Probase Hot; Conventional Acrylic Resin; Long-Curing Method and Short- Curing Method

Abstract| Introduction| Materials and Methods| Statistical Analysis| Results| Discussion| Conclusions | References|