Document Details

Document Type : Thesis 
Document Title :
Evaluation of bioactive glass and low viscosity resin as orthodontic enamel sealer: an in vitro study.
تقييم مادة الزجاج الحيوي و مادة راتنجية كمواد واقية لميناء الأسنان : دراسة مخبرية
 
Subject : Faculty of Dentistry 
Document Language : Arabic 
Abstract : Objectives: The study aimed to evaluate the effect of applying Fluoride bioactive glass (FBAG group) and Alpha-Glaze ® (Resin sealer) on the shear bond strength of orthodontic brackets to enamel. The brushing-abrasion durability and the protective effect against simulated cariogenic acidic attack were also investigated. Methods: One Hundred Thirty-five extracted premolars were divided into 3 groups ( FBAG, Alpha-Glaze , and control group). The shear bond strength test was measured using an Instron Universal Testing Machine. The brushing Abrasion Challenge took place with a tooth-brushing simulator. Transmitted light microscopy examinations were performed after the specimens were soaked in demineralizing solution for 4 days. Results: Shear Bond Strength values of the three groups did not report any statistically significant differences FBAG group (28.1±5.5 Mpa); Alpha-Glaze group (32.5±7.4 Mpa), Control group (30.7±6.5 Mpa) p > 0.05. Adhesive remanent index study showed chipping of enamel in 6.6% of Alpha-glaze and control specimens and 40% of specimens had enamel surfaces covered with resin. 30% of the FBAG and 100% Alpha-Glaze sealer specimens resisted the abrasion test. There was no statistically significant difference between the Control and Alpha glaze groups in the lesion depth. However, FBAG showed less lesion depth. Conclusions: FBAG can serve as an orthodontic-sealers capable of protecting the enamel surface surrounding orthodontic brackets, However, alpha glaze sealer didn’t offer the capability of protecting the enamel. Resin sealer increased the bonding strength of the brackets. However, the application of FBAG did not affect the bond strength of orthodontic brackets to the enamel. FBAG and alpha glaze sealer are present after one year of brushing twice a day. 
Supervisor : Prof. Mona Aly Abbassy 
Thesis Type : Master Thesis 
Publishing Year : 1445 AH
2023 AD 
Co-Supervisor : Prof. Fahad Alsulaimani 
Added Date : Monday, November 13, 2023 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
عبدالله حسين آل شهابAl-Shehab, Abdullah HussainResearcherMaster 

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