If saliva contaminates etched enamel before sealant placement, the best next step is to

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Multiple Choice

If saliva contaminates etched enamel before sealant placement, the best next step is to

Explanation:
Saliva contamination blocks the microporosities created by etching, preventing the sealant from bonding effectively. The surface must be restored to its etched state so the resin can infiltrate and lock in. Re-etching reopens those microscopic pores, followed by thorough rinsing and drying until the enamel looks chalky white. Only after this can you properly apply and cure the sealant. Applying sealant over saliva would not bond, proceeding without re-etching risks failure, and sealing dry areas while other parts remain contaminated won’t restore adhesion.

Saliva contamination blocks the microporosities created by etching, preventing the sealant from bonding effectively. The surface must be restored to its etched state so the resin can infiltrate and lock in. Re-etching reopens those microscopic pores, followed by thorough rinsing and drying until the enamel looks chalky white. Only after this can you properly apply and cure the sealant. Applying sealant over saliva would not bond, proceeding without re-etching risks failure, and sealing dry areas while other parts remain contaminated won’t restore adhesion.

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