Journal
BMC ORAL HEALTH
Volume 20, Issue 1, Pages -Publisher
BMC
DOI: 10.1186/s12903-020-1038-4
Keywords
Artificial caries; Dentine; Remineralisation; Bioactive glass; CPP-ACP
Categories
Funding
- Science and Technology Development Fund of Nanjing Medical University [NMUB2018171]
- project of dentine allergy and bioactive glass research [22011-001]
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Background This study investigated the remineralisation effect of bioactive glass on artificial dentine caries. Methods Dentine disks with artificial caries were treated with bioactive glass (group BAG), casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) (group CPP-ACP), sodium fluoride glycerol (group F) or deionized water (group W). All disks were subjected to pH cycling for 28 days subsequently. The topography, microhardness and remineralisation depth of the dentine carious lesion were assessed by atomic force microscopy (AFM), microhardness testing and confocal laser scanning microscope (CLSM), respectively. Results AFM images indicated mineral depositions on the surface of the carious lesion in group BAG. The changes of Vickers hardness number (Delta VHN, mean +/- SD) after pH cycling were 9.67 +/- 3.60, 6.06 +/- 3.83, 5.00 +/- 2.19 and - 1.90 +/- 2.09 (p < 0.001) in group BAG, group CPP-ACP, group F and group W, respectively. The remineralisation depth (mean +/- SD) of the carious lesion in group BAG, group CPP-ACP, group F and group W were 165 +/- 11 mu m, 111 +/- 11 mu m, 75 +/- 6 mu m and 0 mu m (p < 0.001), respectively. Conclusion Bioactive glass possessed a promising remineralisation effect on artificial dentine caries and could be a therapeutic choice for caries management.
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