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Effect of a functional monomer ( MDP ) on the enamel bond durability of single‐step self‐etch adhesives
Author(s) -
Tsuchiya Kenji,
Takamizawa Toshiki,
Barkmeier Wayne W.,
Tsubota Keishi,
Tsujimoto Akimasa,
Berry Thomas P.,
Erickson Robert L.,
Latta Mark A.,
Miyazaki Masashi
Publication year - 2016
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/eos.12232
Subject(s) - distilled water , adhesive , durability , bond strength , materials science , enamel paint , composite material , phosphoric acid , etching (microfabrication) , shear strength (soil) , chemistry , chromatography , metallurgy , environmental science , soil science , soil water , layer (electronics)
The present study aimed to determine the effect of the functional monomer, 10‐methacryloxydecyl dihydrogen phosphate ( MDP ), on the enamel bond durability of single‐step self‐etch adhesives through integrating fatigue testing and long‐term water storage. An MDP ‐containing self‐etch adhesive, Clearfil Bond SE ONE ( SE ), and an experimental adhesive, MDP ‐free ( MF ), which comprised the same ingredients as SE apart from MDP , were used. Shear bond strength ( SBS ) and shear fatigue strength ( SFS ) were measured with or without phosphoric acid pre‐etching. The specimens were stored in distilled water for 24 h, 6 months, or 1 yr. Although similar SBS and SFS values were obtained for SE with pre‐etching and for MF after 24 h of storage in distilled water, SE with pre‐etching showed higher SBS and SFS values than MF after storage in water for 6 months or 1 yr. Regardless of the pre‐etching procedure, SE showed higher SBS and SFS values after 6 months of storage in distilled water than after 24 h or 1 yr. To conclude, MDP might play an important role in enhancing not only bond strength but also bond durability with respect to repeated subcritical loading after long‐term water storage.