الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The most typical material for creating removable complete dentures is
heat-cured acrylic resin. Numerous studies have been conducted as a result of
current developments in science and technology to enhance not only physical
properties but also Modifiers like zirconium oxide and silica dioxide nanofillers,
which have a significant impact on the physical and mechanical properties of
PMMA polymer, are added to modify not only the mechanical properties but
also the working properties.
This study was carried out to know which type of fillers show less tooth
movement, and better adaptation of maxillary heat cured acrylic dentures before
and after thermocycling process .
Twenty maxillary waxed-up dentures were made, then divided into two
equal groups: the first group is a ten dentures reinforced by 5% zircon oxide
nanoparticles by wight and the second group is a ten dentures reinforced by 5%
silica dioxide nanoparticles by weight .
The changes in teeth movements and denture base adaptation were
measured before and after thermocycling by Geomagic control x software
(software for 3D coordinate measuring technology) ,The means of changes were
collected, tabulated and statistically analyzed. Data analyses were carried out
using computer software Statistical Package for Social Science SPSS (IBMSPSS ver. 29.0 for Mac OS).