25th Scientific Congress of Turkish Prosthodontics and Implantology Association, Muğla, Türkiye, 4 - 07 Kasım 2021, ss.96
Purpose: The purpose of this study was to investigate the effect of simulated gastric fluid on the
surface hardness of different provisional prosthetic materials.
Materials and Methods: A total of fourty-eight specimens (Acrytemp, Protemp 4, Temdent Classic
Dark, Bisco Temp S) were prepared using a PTFE mould. After polishing, the specimens were
immersed simulated gastric fluid for 24 hours. Surface hardness was measured using a Vickers
hardness tester. Surface hardness measurements was carried out before and after the specimens
immersed in simulated gastric fluid. Data were analyzed using the statistical software and
subjected to one-way ANOVA and a post hoc Tukey test were used for multiple comparisons
( =0.05).
Results: The results of revealed that the simulated gastric fluid effects the hardness of provisional
prosthetic materials. There were statistically significant differences in values of hardness of
prosthetic materials (P<.001).
Conclusions: Based on the results of the study, the hardness of provisional prosthetic materials
were affected by simulated gastric fluid. The patients with gastroesophageal reflux disease should
be warned by the dentists about the strength of the provisional prosthetic materials
Keywords: Surface hardness, provisional prosthetic materials, gastric fluid