In vitro hydrolytic degradation of composite quartz fiber-post bonds created by hydrophilic silane couplings

F. Monticelli, R. Osorio, M. Toledano, Franklin Chi Meng Tay, M. Ferrari

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The hydrolytic stability of a pre-activated MPS silane (Monobond-S) and a 2-component 4-META/ γ-MPTS silane (Porcelain Liner M) to H 2O2-etched quartz fiber posts was investigated using a modeling approach. Composite build-ups around silanized posts were stored dry for 24 hours, stored in deionized water at 37°C for 24 hours, 1 week, 1 month or they were thermocycled. Sectioned specimens were prepared for microtensile bond testing and SEM examination; 4-META/γ-MPTS silane produced a rapid decline in bond strength after 1 week and 1 month of water storage and after thermocycling. This was not apparent in pre-activated MPS silane. SEM revealed debonding along the post-composite interfaces, which were coupled with 2-component silane. The use of a hydrophilic resin monomer (4-META) for on-demand hydrolysis of the γ-MPTS silane expedited interfacial water sorption and hydrolytic degradation, which may be prevented with alternative coupling strategies.

Original languageEnglish (US)
Pages (from-to)728-733
Number of pages6
JournalOperative dentistry
Volume31
Issue number6
DOIs
StatePublished - Nov 1 2006

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Silanes
Quartz
Water
Dental Porcelain
In Vitro Techniques
Hydrolysis

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

In vitro hydrolytic degradation of composite quartz fiber-post bonds created by hydrophilic silane couplings. / Monticelli, F.; Osorio, R.; Toledano, M.; Tay, Franklin Chi Meng; Ferrari, M.

In: Operative dentistry, Vol. 31, No. 6, 01.11.2006, p. 728-733.

Research output: Contribution to journalArticle

Monticelli, F. ; Osorio, R. ; Toledano, M. ; Tay, Franklin Chi Meng ; Ferrari, M. / In vitro hydrolytic degradation of composite quartz fiber-post bonds created by hydrophilic silane couplings. In: Operative dentistry. 2006 ; Vol. 31, No. 6. pp. 728-733.
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