Abstract:
:The objective of the study was to compare 1) the mean micro-shear bond strength and 2) failure mode of cements to metals in nonenclosed and mold-enclosed specimens. Specimens were prepared in mold-enclosed and non-enclosed formats from two RMGIC's and a self-adhesive resin-cement. 3-way ANOVA analysis and Tukey post hoc tests were used to compare mean µSBS results (α=0.05). Failure mode was analysed with Pearson's chi-square test (α=0.05). µSBS was significantly affected by the factors substrate and method (p<0.001) but not by material (p=0.077). There was an interaction between substrate, method and material F (2,144)=3.57, p=0.031, and method and material (2,144)=5.86, p=0.004. All mold-enclosed specimens for the three cements bonded to titanium and non-precious metal exhibited higher (p<0.001) mean µSBS than the non-enclosed specimens. Within this study, mold-enclosed specimens exhibited significantly higher (p<0.001) mean µSBS and adhesive failure compared to non-enclosed specimens.
journal_name
Dent Mater Jjournal_title
Dental materials journalauthors
Cheetham JJ,Palamara JE,Tyas MJ,Burrow MFdoi
10.4012/dmj.2013-065subject
Has Abstractpub_date
2013-01-01 00:00:00pages
896-905issue
6eissn
0287-4547issn
1881-1361pii
DN/JST.JSTAGE/dmj/2013-065journal_volume
32pub_type
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