Marginal microleakage of restorations and the transmission of bacteria, liquids and molecules between the cavity surface and the restorative material results in hypersensitivity, secondary caries, pulp stimulation and marginal discoloration.[1]
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One of the major objectives of tooth restoration is the protection of exposed dentine against bacteria and their toxins. The interface between the restoration and dental hard tissue is an area of clinical concern as insufficient sealing can result in marginal discoloration, secondary caries, and pulpitis.
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