Influence of Polishing Methods on the Bonding Effectiveness and Durability of Different Resin Cements to Dentin.

Abstract:

:The purpose of this study was to investigate the impact of polishing methods on the bonding effectiveness and durability of different resin cements to dentin. The dentin surfaces were either treated with a fine-grit diamond bur (polishing A) or further polished by polishing disks (polishing B), and then they were bonded with any one of the three resin cements, namely, etch-and-rinse, self-etch, and self-adhesive resin cements. After 24-hour or 2-year water storage, a microtensile bond strength (μTBS) test was performed. A scanning electron microscope (SEM) was used to observe the morphology of the smear layer as well as the resin-dentin bonding interface. The results indicated that a thinner smear layer thickness was created by polishing B compared with polishing A. Although self-etch and self-adhesive resin cements achieved a relatively high primary bond strength before water degradation, etch-and-rinse resin cement obtained a stable bond strength during water degradation. The application of an additional polishing procedure could improve the bond strength of self-etch and self-adhesive resin cements.

journal_name

Biomed Res Int

authors

Ren L,Li M,Pan Y,Meng X

doi

10.1155/2018/9189354

subject

Has Abstract

pub_date

2018-02-28 00:00:00

pages

9189354

eissn

2314-6133

issn

2314-6141

journal_volume

2018

pub_type

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