الفهرس 
DeseriptionOnly 14 pages are availabe for public view
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Abstract
Heat cured acrylic resin is the most commonly used material for construction of removable complete dentures. With the continuous progress in science and technology many investigations were designed to improve not only physical and mechanical properties but also working properties by addition of modifiers like zirconium oxide nanofillers which greatly affects physical and mechanical properties of PMMA polymer.
Addition of fillers may contribute to the dimensional accuracy and the dimensional stability of the processed dentures, so this study was carried out to investigate the effect of addition of zirconium oxide nanofillers on vertical dimension, teeth movement and adaptation of maxillary heat cured acrylic dentures.
Thirty six identical maxillary waxed up dentures were constructed then divided into two equal groups, control group in which waxed up dentures were processed into conventional heat cured acrylic resin dentures and test group in which waxed up dentures were processed into 5% zirconium oxide nanofiller reinforced heat cured acrylic resin dentures.
The changes in linear teeth movements were measured using digital software and vertical dimension of occlusion using digital caliper before and after processing. The changes in denture adaptation were measured immediately after processing and after hydration for seven days in distilled water using digital software. The means of changes were collected, tabulated and statistically analyzed. Data analyses were carried out using computer software Statistical Package for Social Science SPSS (IBM-SPSS ver. 26.0 for Mac OS.