Journal
COMPOSITES PART B-ENGINEERING
Volume 153, Issue -, Pages 393-397Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2018.09.024
Keywords
Interface; Microstructures; Fluoride calcium silicate; Mineralization; Enamel
Funding
- Sichuan Science and Technology Department [2017GZ0402]
- National Key Research and Development Program of China [18YFB1105602, 2018YFC1106802]
- Sichuan Province Major Scientific & Technological Achievements Transformation Demonstration Project [2016CZYD0004]
- Sichuan Province Science & Technology Department Key Projects [2017SZ0001]
- Key R&D project of Sichuan Province [2018GZ0142]
- 111 Project [B16033]
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Tooth enamel is easily demineralization due to all kinds of food or drinking attacking, and fluoride calcium silicate (F-CaSiO4) is widely used in demineralized enamel repair due to its good biocompatibility and bioactivity. In this study, F-CaSiO4 as remineralized enamel reagent was used to repair acidic enamel by simulated tooth brushing. The surface morphology of F-CaSiO4 was observed by scanning electron microscope (SEM) and atomic force microscope (AFM). Altrathin section samples were prepared by Dual-beam focused ion-beam (FIB) system for further observing the interface structure and crystalline by high resolution transmission electron microscopy (HRTEM) selected-area electron diffraction (SAED). Composition was evaluated by energy dispersion X-ray spectroscopy (EDX). The results indicated that F-CaSiO4 can rapidly induce apatite formation for 24 h in human saliva and the mineralized layer's thickness was at 200-370 nm, and interface between mineralized layer and enamel matrix bonded well. This study indicated that F-CaSiO4 may be a promising toothpaste additives/dentifrices as demineralized enamel restoration.
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