In Vitro Effect of Strontium-Doped ۴۵S۵ Bioglass and Nd:YAG Laser on Microhardness of Demineralized Enamel
محل انتشار: مجله تحقیقات دندانپزشکی، دوره: 14، شماره: 1
سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 173
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شناسه ملی سند علمی:
JR_AJDR-14-1_005
تاریخ نمایه سازی: 30 آبان 1401
چکیده مقاله:
Background: This study aimed to assess the effect of strontium-doped ۴۵S۵ bioglass (BG) and Nd:YAGlaser on the microhardness of demineralized enamel.Materials and Methods: In this in vitro, experimental study, ۶۵ sound enamel samples were preparedof human premolars and polished, and then immersed in a demineralizing solution for ۱۰ weeks. Thesamples were randomly divided into ۵ groups of control, BG, laser, laser plus BG, and BG plus laser.Two samples of each group underwent assessment of surface morphology under a scanning electronmicroscope. Finally, the microhardness of samples was measured using a Vickers hardness tester, and datawere analyzed by ANOVA.Results: The mean microhardness of the BG group was significantly higher than that of other groups(P < ۰.۰۵). The lowest microhardness was noted in the control group. The difference in microhardnesswas significant between laser and laser plus BG groups (P < ۰.۰۵). Further, the BG plus laser group hada significant difference in microhardness with BG and control groups (P < ۰.۰۵). The difference betweenlaser plus BG and control groups was also significant in this respect (P < ۰.۰۵). Eventually, maximummorphological changes were observed in the BG group.Conclusions: Overall, BG seems to be effective for the treatment of incipient enamel caries. It effectivelyincreases enamel microhardness and decreases mineral loss while preserving the integrity of the enamel surface.
کلیدواژه ها:
نویسندگان
Bahareh Asgartooran
Department of Restorative Dentistry, Dental School, Hamedan University of Medical Sciences, Hamedan, Iran
Erfan Akbari
Dentist
Loghman Rezaei-Soufi
Department of Restorative Dentistry, Dental School, Hamedan University of Medical Sciences, Hamedan, Iran
Roya Najafi-Vosough
Department of Biostatistics and Epidemiology, School of Public Health, Hamedan University of Medical Sciences, Hamedan, Iran