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Journal of Dental Materials and Techniques، جلد ۱۳، شماره ۴، صفحات ۱۶۲-۱۶۸
عنوان فارسی
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عنوان انگلیسی Biofilm formation and surface characteristics of conventional glass ionomer, resin-modified glass ionomer, and GC gold hybrid restorative material
چکیده انگلیسی مقاله Objective: The present study aimed to evaluate the surface roughness, microhardness, and biofilm formation of conventional glass-ionomer cement (GIC) and two GIC-based restorative materials.Methods: Twenty-four samples were prepared from each of the following restorative materials: Group 1) GIC, Group 2) resin-modified glass-ionomer cement (RMGIC), and Group 3) GC Gold Hybrid restorative material. The surface roughness and microhardness of specimens were evaluated using a surface profilometer and a Vickers microhardness tester, respectively. Half of the samples in each group were exposed to Streptococcus mutans suspension and the other half to Streptococcus oralis suspension. The bacterial colonies were counted using a digital colony counter. Data were compared using the Kruskal Wallis and Wilcoxon signed rank tests (α=0.05).Results: The surface roughness and microhardness values were significantly different among the groups (P = 0.001). RMGIC showed significantly lower surface roughness and significantly higher microhardness among the groups (P<0.05). There was a significant difference in S. mutans biofilm formation among the groups (P< 0.001), but S. oralis biofilm was not significantly different (P=0.063). GC Gold Hybrid had a significantly higher S. mutans biofilm formation compared to other groups (P<0.05). The formation of S. oralis biofilms was significantly higher than that of S. mutans biofilms in all materials (P < 0.05).Conclusions: RMGIC had the most favorable surface properties among the groups. GC Gold Hybrid had a higher bacterial adhesion and less favorable surface properties, which might increase the rate of secondary caries around the restoration.
کلیدواژه‌های انگلیسی مقاله Colony Count, Glass ionomer cement, hardness, Restorative material, Streptococcus mutans, Surface characteristics
نویسندگان مقاله | Amutha Mathu Vimala Soorya
Department of Pedodontics and Preventive Dentistry, Sathyabama Dental College and Hospital, Kelambakkam, India.


| Vishnu Rekha Chamarthi
Department of Pedodontics and Preventive Dentistry, Sathyabama Dental College and Hospital, Kelambakkam, India.


| Mahalakshmi Krishnan
Department of Microbiology, Sree Balaji Dental College and Hospital, Chennai, India.


| Dhanraj Kalaivanan
Department of Pedodontics and Preventive Dentistry, Sathyabama Dental College and Hospital, Kelambakkam, India.


| Santham Krishnamoorthy
Department of Pedodontics and Preventive Dentistry, Sathyabama Dental College and Hospital, Kelambakkam, India.


| Sumaiyya Saleem
Department of Pedodontics and Preventive Dentistry, Sathyabama Dental College and Hospital, Kelambakkam, India.


| Sai Sarath Kumar Kothimbakkam
Department of Pedodontics and Preventive Dentistry, Sathyabama Dental College and Hospital, Kelambakkam, India.


| Santhosh Priya Appiya Krishnan Ramnath Babu
Department of Pedodontics and Preventive Dentistry, Sathyabama Dental College and Hospital, Kelambakkam, India.
نشانی اینترنتی https://jdmt.mums.ac.ir/article_25361.html
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