DIMENSIONAL ACCURACY OF NANO ZIRCONIUM OXIDE REINFORCED MAXILLARY DENTURES VERSUS CONVENTIONAL HEAT CURED ACRYLIC RESIN

Paper ID : 1004-YRC2022

Authors

mina samy samy *, sayed el masry, Hala Mohamed Abd El-Hamid, kowkb mohammed eltamimi suez canal

Abstract

introduction: Addition of fillers to the denture base material in order to enhance its mechanical properties may contribute to the dimensional accuracy of the processed dentures. Aim: is to investigate the effect of zirconium oxide nanofillers addition on the dimensional accuracy of maxillary heat cured acrylic dentures. Materials and Methods: Thirty six identical maxillary waxed up dentures were constructed, divided into two equal groups, control group processed into conventional heat cured acrylic resin dentures and test group processed into 5% zirconium oxide nanofiller reinforced heat cured acrylic resin dentures. Changes in denture adaptation were measured immediately after processing and after seven days hydration in distilled water using digital software. Results: Test group showed significant more denture adaptation after processing. However, denture hydration caused decrease in denture adaptation in test group while causing enhancement in denture adaptation with the control group. Conclusion: zirconium oxide nanofillers reinforcement showed nearly comparable results of dimensional accuracy to the conventional dentures with negative results on aging.

Keywords

Acrylic resin denture base, zirconium oxide nano fillers, dimensional accuracy, denture base adaptation.

Status: Accepted (Poster Presentation)