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Open AccessArticle

Fluorinated Montmorillonite and 3YSZ as the Inorganic Fillers in Fluoride-Releasing and Rechargeable Dental Composition Resin

Institute of Biomedical Engineering, National Taiwan University, No.49, Fanglan Rd., Da’an Dist., Taipei 10672, Taiwan
Department of Neurosurgery, Mackay Memorial Hospital, No.92, Sec. 2, Zhongshan N. Rd., Zhongshan Dist., Taipei 10449, Taiwan
Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, No.1, Sec. 1, Ren’ai Rd., Zhongzheng Dist., Taipei 10051, Taiwan
National Taiwan University Hospital, College of Medicine, National Taiwan University, No.1, Changde St., Zhongzheng Dist., Taipei 10048, Taiwan
Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, No.35, Keyan Rd., Zhunan Township, Miaoli County 35053, Taiwan
Authors to whom correspondence should be addressed.
Polymers 2020, 12(1), 223;
Received: 30 December 2019 / Revised: 11 January 2020 / Accepted: 13 January 2020 / Published: 16 January 2020
(This article belongs to the Special Issue Polymeric Materials for Dental Applications)
Dental caries (tooth decay) is the most frequent oral disease in humans. Filling cavities with a dental restorative material is the most common treatment, and glass ionomer cements are the main fluoride ion release restorative materials. The goal of this study was to develop a restorative compound with superior fluoride ion release and recharge abilities. Previously developed fluorinated bentolite and hydrophobized 3YSZ were used as two different inorganic fillers mixed in a bisphenol A-glycidyl methacrylate (Bis-GMA) matrix. XRD, FTIR, and TGA were used to determine the hydrophobic modification of these two inorganic fillers. In mechanical tests, including diameter tensile strength, flexural strength, and wear resistance, the developed composite resin was significantly superior to the commercial control. A WST-1 assay was used to confirm that the material displayed good biocompatibility. Furthermore, the simulation of the oral environment confirmed that the composite resin had good fluoride ion release and reloading abilities. Thus, the composite resin developed in this study may reduce secondary caries and provide a new choice for future clinical treatments. View Full-Text
Keywords: dental caries; fluorides; composite resins; Bis-GMA; bentonite; zirconium dental caries; fluorides; composite resins; Bis-GMA; bentonite; zirconium
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MDPI and ACS Style

Li, K.-Y.; Tsai, C.-C.; Lin, T.-C.; Wang, Y.-L.; Lin, F.-H.; Lin, C.-P. Fluorinated Montmorillonite and 3YSZ as the Inorganic Fillers in Fluoride-Releasing and Rechargeable Dental Composition Resin. Polymers 2020, 12, 223.

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