Abstract:
:In this study, effects of the degree of dissociation of acids on the hydrolysis rate of methoxy group in γ-methacryloxypropyltrimethoxysilane (γ-MPS) and the adsorption characteristics of γ-MPS on ceramic surfaces were studied using acetic, phosphoric, and hydrochloric acids. Hydrolytic stability of γ-MPS adsorption layer at the resin-ceramic interface was thus examined. (29)Si NMR observations of acidactivated γ-MPS and contact angle measurements following ceramic surface silanization were performed. Bond strengths of resin to the silanized ceramic surfaces were measured. Statistical analyses of shear bond strength and contact angle data were performed. Increase in the degree of dissociation of the acid used increased the hydrolysis rate of methoxy group in γ-MPS, but lowered the contact angle to the silanized ceramic surface. Decrease in the contact angle increased the hydrolytic stability of γ-MPS adsorption layer.
journal_name
Dent Mater Jjournal_title
Dental materials journalauthors
Aoki N,Kimoto S,Tanimura H,Nishiyama N,Aida Mdoi
10.4012/dmj.2013-319subject
Has Abstractpub_date
2014-01-01 00:00:00pages
614-20issue
5eissn
0287-4547issn
1881-1361pii
DN/JST.JSTAGE/dmj/2013-319journal_volume
33pub_type
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