Effect of different sintering procedures on marginal and internal fit, color, and fracture load of monolithic zirconia fixed partial prostheses

被引:0
作者
Eraslan, Ravza [1 ]
Sahin, Baharsayin
Albayrak, Haydar [1 ]
Ayata, Mustafa
Temizkanli, Ozan
机构
[1] Erciyes Univ, Fac Dent, Dept Prosthodont, Kayseri, Turkiye
关键词
color; fit; fracture load; sintering; zirconia; FLEXURAL STRENGTH; OPTICAL-PROPERTIES; GRAIN-SIZE; TEMPERATURE; TRANSLUCENT; THRESHOLDS; CERAMICS; ACCURACY;
D O I
10.3290/picd.b5114621
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Aim: The aim of the present in vitro study was to investigate the effects of different sintering procedures on the fit, color parameters, and fracture load of monolithic fixed partial prostheses (FPPs). Materials and methods: A metal master model was scanned and FPPs were designed. Groups were created by fabricating FPPs using four different sintering procedures (n = 10): Prettau-Standard (PST); Prettau-Slow (PSL); Ice-Speed (ISP); Ice-Standard (1ST). PST-PSL (Group P; N = 20) and ISP-IST (Group I; N = 20) were colored with different coloring liquids. The marginal and internal fit were measured using the silicone replica method. CIELAB values of the samples were measured using a spectrophotometer. Then, for each sample, the die was obtained from polymethyl methacrylate. The specimens were cemented into dies and tested in a universal testing machine for fracture load. One-way ANOVA was performed to assess the effect of the sintering procedure on the marginal and internal fit; fracture load; and AE00, AL', AC', and OH'values of the FPPs. Results: The PSL and PST groups showed significantly smaller internal and marginal fit values compared with the ISP group. Additionally, the internal fit values of the 1ST group were significantly higher than those of Group P. Sintering time reduction led to a decrease in AE00 values. Fracture load values were not statistically significantly affected by the different sintering procedures for both brands. Conclusion: Different sintering procedures did not have a clinically significant effect on fit and fracture load. Different sintering procedures were found to have an impact on the color change of monolithic zirconia restorations. (Int J Comput Dent 2024;27(3):281-290; doi: 10.3290/picd.b5114621)
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页数:100
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