The objective of extension for prevention is to prevent recurrence of caries at the margins of restorations.

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Multiple Choice

The objective of extension for prevention is to prevent recurrence of caries at the margins of restorations.

Explanation:
Extension for prevention is about extending the preparation into areas that are prone to decay so the final restoration’s margins sit on sound, caries-resistant tooth structure. By removing plaque-retaining zones and ensuring a better seal at the margin, the approach aims to prevent new decay from starting right at the edge of the restoration. That’s why the objective is to prevent recurrence of caries at the margins of restorations. This is not primarily about esthetic improvement, simplifying the prep, or altering the margin seal for other reasons—the main goal is reducing margin-related recurrent decay.

Extension for prevention is about extending the preparation into areas that are prone to decay so the final restoration’s margins sit on sound, caries-resistant tooth structure. By removing plaque-retaining zones and ensuring a better seal at the margin, the approach aims to prevent new decay from starting right at the edge of the restoration. That’s why the objective is to prevent recurrence of caries at the margins of restorations. This is not primarily about esthetic improvement, simplifying the prep, or altering the margin seal for other reasons—the main goal is reducing margin-related recurrent decay.

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