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Can etching help to increase bond strength?

April 26, 2017Bond etching help increase strength

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Can etching help to increase bond strength?

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RelyX™ Unicem cement shows good bond strength to enamel and very high bond strength to dentin without any pre-treatment. If enamel is selectively etched the bond strength to enamel can be improved to a degree. However, etching of dentin does NOT increase bond strength, whereas it generates the risk of post-operative sensitivities and microleakage. Therefore, if selective etching of enamel is desired, care ought to be taken not to etch adjacent dentin.