Brushing abrasion of eroded enamel using bioactive glass toothpaste in different time after acid etching

doi:10.3969/j.issn.2095-4344.2015.25.017

Abstract

Abstract:

BACKGROUND: Bioactive glass has good biocompatibility, which can promote the remineralization effects of demineralized enamel and enhance the resistance of enamel to erosion.
OBJECTIVE: To evaluate the effect of bioactive glass toothpaste versus fluoride toothpaste on brushing abrasion of enamel after acid etching.
METHODS:Fifty-six enamel specimens were prepared from bovine incisors, and were embedded in acrylic resin with exposed buccal surface. The exposed area was 6 mm×6 mm and two amalgam fillings were placed into the enamel and polished. All specimens were divided into seven groups with eight specimens each. In six groups, specimens were brushed with ordinary toothpaste, fluoride toothpaste, bioactive glass toothpaste immediately and 30 minutes after being eroded by the Sprite. The last one group was brushed with ordinary toothpaste without acid etching as control. The treatment course was cycled 60 times. The surface abrasion loss of the specimens between two amalgam fillings compared with respective amalgam reference surfaces was finally observed and calculated under laser scanning confocal microscope.
RESULTS AND CONCLUSION: The abrasion loss amount of teeth with no acid etching was significantly lower than that with acid etching (P < 0.05). The abrasion loss amount of teeth brushed with bioactive glass toothpaste
was less than that with fluoride toothpaste at the same brushing time (P < 0.05). For the same toothpaste, the abrasion loss amount of teeth brushed 30 minutes after eroded was less than that bushed instantly after eroded (P < 0.05). Use of bioactive glass toothpaste can effectively reduce enamel loss caused by acid etching and brushing. The loss amount can also be reduced by brushing teeth 30 minutes after acid etching.

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

Key words: Dental Enamel, Acid Etching, Dental, Toothpastes

CLC Number:

R318

Zhao Yu-long, Yang De-sheng. Brushing abrasion of eroded enamel using bioactive glass toothpaste in different time after acid etching [J]. Chinese Journal of Tissue Engineering Research, 2015, 19(25): 4022-4026.

Figures/Tables 1

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