Micro Hardness Of Bleached Human Enamel Following Application Of Conventional Versus Nano Active Bioglass: An Invitro Study
Haridy, M., Alhussiny, H. (2018). Micro Hardness Of Bleached Human Enamel Following Application Of Conventional Versus Nano Active Bioglass: An Invitro Study. EKB Journal Management System, 64(Issue 1 - January (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)), 527-536. doi: 10.21608/edj.2018.78056
Mohammed F Haridy; Hossam A. Alhussiny. "Micro Hardness Of Bleached Human Enamel Following Application Of Conventional Versus Nano Active Bioglass: An Invitro Study". EKB Journal Management System, 64, Issue 1 - January (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), 2018, 527-536. doi: 10.21608/edj.2018.78056
Haridy, M., Alhussiny, H. (2018). 'Micro Hardness Of Bleached Human Enamel Following Application Of Conventional Versus Nano Active Bioglass: An Invitro Study', EKB Journal Management System, 64(Issue 1 - January (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)), pp. 527-536. doi: 10.21608/edj.2018.78056
Haridy, M., Alhussiny, H. Micro Hardness Of Bleached Human Enamel Following Application Of Conventional Versus Nano Active Bioglass: An Invitro Study. EKB Journal Management System, 2018; 64(Issue 1 - January (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)): 527-536. doi: 10.21608/edj.2018.78056

Micro Hardness Of Bleached Human Enamel Following Application Of Conventional Versus Nano Active Bioglass: An Invitro Study

Egyptian Dental Journal
Article 22, Volume 64, Issue 1 - January (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), January 2018, Page 527-536  XML PDF (577.43 K)
Document Type: Original Article
DOI: 10.21608/edj.2018.78056
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Authors
Mohammed F Haridy1; Hossam A. Alhussiny2
1Associate Professor of Operative Dentistry, Faculty of Dentistry, Cairo University, Egypt
2Lecturer of Operative Dentistry, Faculty of Dentistry, Suez Canal University, Egypt
Abstract
Objectives: The aim of this study was to compare the effect of conventional vesrsus nanosized bioactive glass on the microhardness values of bleached enamel.
Methods: Forty-five fresh extracted human incisors were divided into three main groups (15 each) according to the bleaching technique (B); unbleached (B0) as a Control, light activated bleaching (B1) and chemical activated bleaching (B2). Each group was further divided equally into three subgroups (5 each) according to application of remineralizing agent (R); either conventional bioactive glass (R1), nano bioactive glass (R2) and without application of any remineralizing agent as a control (R0). Teeth bleaching was done as per the manufacturer’s instructions, while, remineralizing agents were applied according to wang et al 2011. Microhardness assessment was done after bleaching as well as after remineralization using Digital Display Vickers Microhardness Tester.
Results: The unbleached group showed the highest mean microhardness followed by chemically activated bleaching group, then the light activated bleaching group. Regarding remineralization; nano bioactive glass groups showed higher microhardness results than conventional bioactive glass groups.
Conclusions: Bleaching has a deleterious effect on enamel microhardness. Bioactive glass can counter act the adverse effect of bleaching on enamel. Nanobioactive glass is a promising material for remineralization
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