| Autor: |
Delikan, Ebru, Çaliskan, Seçil, Çalışkan, Ahmet, Özdemir, Canan |
| Předmět: |
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| Zdroj: |
BMC Oral Health; 8/1/2023, Vol. 23 Issue 1, p1-8, 8p |
| Abstrakt: |
Background: Since the effects of sterilization on the Fiberglass Reinforced Resin Crowns (FRRCs) is not well-known the aim of current study was to evaluate the effects of autoclave sterilization on the fracture resistance, color stability, and surface composition of FRRCs. Methods: A total of 48 crowns were used. The crowns were divided into three groups according to the sterilization number: no sterilization (Control Group), one sterilization (Group 1), and four sterilizations (Group 2). The microstructure of the three crowns from each group was evaluated using scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) spectroscopy. Thirteen FRRCs from each group were first used for color stability testing and then for the fracture resistance analysis. One-way analysis of variance (ANOVA), one-way repeated measures ANOVA, and paired t-tests were used in the statistical analysis. Results: EDX results revealed that the weight% of surface silicon atoms in group 2 was significantly higher. Some crack lines could be observed on the SEM images. Statistically significant differences were found in color stability following the first and fourth sterilization cycles (p <.01). The increase in the sterilization cycle did not statistically decrease the fracture resistance of the FRRCs (p =.055); however, overall, a decreasing trend was observed in fracture resistance as the sterilization cycle increased. Conclusions: Autoclave sterilization caused some changes in the surface elemental composition and surface morphology of FRRCs. Avoiding unnecessary FRRC trials is important to reduce the number of sterilizations. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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