期刊
JOURNAL OF DENTAL RESEARCH
卷 89, 期 5, 页码 482-487出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/0022034510363665
关键词
continuous etching; glycine buffer; hybrid layer thickness; remineralization; self-etching adhesive
资金
- National Institute of Dental and Craniofacial Research [R21 DE019213]
Continuous etching of aggressive all-in-one adhesives occurs in wet dentin tubules after polymerization of the adhesives. This study challenged the hypothesis that unpolymerized acidic monomers from an aggressive all-in-one self-etching adhesive continue to etch beyond dentin hybrid layers. Dentin surfaces bonded with Adper Prompt L-Pop were sectioned into 0.3-mm-thick slabs. Some of the slabs were stored in water (pH 6.8) or glycine buffer (pH 11.1) for six weeks and then examined by CLSM, SEM, and TEM. The rest were immersed in a biomimetic remineralizing medium for up to 4 months. Morphologic analysis indicated no difference in demineralization thickness between the two 6-week storage groups. However, increased permeability and loss of integrity occurred along the base of the hybrid layers in the glycine buffer group, but not in the water storage group. These findings were also confirmed by the results of biomimetic remineralization along the bases of those hybrid layers.
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