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Research Question: What effect does using the dual cure component of
an adhesive system have on bond strengths to auto cure buildup resins?
All of the adhesives with dual cure components were tested with Ti Core
and Core-Flo. The three most popular adhesives that have made a change
to a dual cure component were chosen for expanded testing (increased sample
size for statistical analysis) with Core-Flo auto curing buildup resin.
Test time was 10 minutes after placement of core material.
Chart 1: 10 minute bond strengths (MPa) of 3 dual cure adhesives
to Core-Flo (auto cure buildup) with and without use of the adhesive dual
cure component.
| Adhesives |
Light cure
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Dual cure
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Prime & Bond NT
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9.7
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Clearfil Liner Bond 2V
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8.4
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 =
statistically lower |
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Summary of chart: Bond strengths were statistically lower for each
adhesive when it was used without its dual cure component. Other
CRA data showed all adhesives, but one, had higher bond strengths
when dual cure component was used. Bond 1 had higher bond strengths,
but they were still below 5 MPa. These data indicate dual cure
components of adhesive systems should be used with dual cure adhesives
when bonding to auto cure buildup resins.
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