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Effect of different sizes of bioactive glass-coated mesoporous silica nanoparticles on dentinal tubule occlusion and mineralization.
- Source :
-
Clinical Oral Investigations . May2019, Vol. 23 Issue 5, p2129-2141. 13p. 3 Diagrams, 3 Charts, 4 Graphs. - Publication Year :
- 2019
-
Abstract
- Objectives: To synthesize two different sizes of bioactive glass-coated mesoporous silica nanoparticles (BGN@MSNs) and to investigate their effects on dentinal tubule occlusion and remineralization. Materials and methods: Two different sizes of mesoporous silica nanoparticles (MSNs) were synthesized using the Stöber method (368A, 1840A) and coated with bioactive glass nanoparticles (BGNs) using a modified quick alkali-mediated sol-gel method (368B, 1840B). Sensitive tooth disc models were prepared and divided into six groups and the following treatments were applied: group 1—no treatment, group 2—bioglass, group 3—368A, group 4—368B, group 5—1840A, and group 6—1840B. Then, five discs were selected from each group and soaked in 6 wt% citric acid to test acid resistance. Dentinal tubule occlusion and occlusion ratio were observed using field-emission scanning electron microscopy. In vitro mineralization tests using simulated body fluid solution were performed to evaluate the remineralization effect of the treatment. Results: All samples effectively occluded the dentinal tubule and formed a membrane-like layer. After acid treatment, 1840B (group 6) exhibited the highest rate of dentinal tubule occlusion. Remineralization was observed in 368B and 1840B, and 1840B exhibited the fastest remineralization. Conclusions: Dentinal tubule remineralization induced by the BGN@MSN biocomposite can be used to stabilize long-term prognosis in dentin hypersensitivity. The 1840B induced the most efficient remineralization, and its smaller size and larger surface area were effective for remineralization. Clinical relevance: The BGN@MSN biocomposite with its smaller size and larger surface area was more effective for remineralization and dentinal tubule sealing. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14326981
- Volume :
- 23
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Clinical Oral Investigations
- Publication Type :
- Academic Journal
- Accession number :
- 136162616
- Full Text :
- https://doi.org/10.1007/s00784-018-2658-9