Assessment of the effect of accelerated aging on the surface roughness of blend effect and microhybrid resin composites
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academicJournal
Zugriff:
Introduction: Today, patients are looking for tooth-colored restorations such as laminates and composite resins. Some studies emphasize that the biggest current challenge for composites is to maintain and enhance the factors associated with tooth color coordination and restorative composites. One of the latest developments is the introduction of blend effect composites. Due to the optical properties of their fillers, these composites have the ability to reflect the shadows of their environment. Surface roughness is considered as a very important feature for the life of restorations, where values> 0.2 μM show a significant increase in bacterial retention. In addition, this roughness may be related to other variables. The aim of this study was to investigate the changes in surface roughness of blend effect composites due to accelerated aging. Materials and Methods: 28 composite disks were prepared from two types of composites with blend effect and conventional properties and from two shadows a2 and xbw. The surface roughness of the composites was investigated twice before and after accelerated aging with a profilometer. Accelerated aging included 2,000 thermocycle cycles. T-test was used to compare changes in surface roughness in a group. ANOVA test was used to compare the changes in surface roughness in the two groups. Results: The difference between accelerated surface roughness before and after aging between the two shadows of each group in both GC gradia and Solafil groups was significant (P <.05). The difference between surface roughness before and after accelerated aging in Shade XBW was significantly different between the two composite groups. Regarding Shade A2, the relationship between the two groups was not significant in the present study, but the P value was at a high level of confidence. Conclusion: Blend effect composites had better resistance to accelerated aging than the other group, although Shade XBW was more sensitive than Shade A2
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Assessment of the effect of accelerated aging on the surface roughness of blend effect and microhybrid resin composites
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Autor/in / Beteiligte Person: | مولایی, شادیه ; کامران, عزیز ; رهبر, مهدی ; محمودی, سامان |
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Veröffentlichung: | 1400 |
Medientyp: | academicJournal |
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