Restorative & Materials · single question
Anterior tooth with SUBGINGIVAL decay extending below the gumline. Best restorative material?
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Correct answer: C. Glass ionomer
- A. Incorrect. Composite requires a dry, well-isolated field; subgingival margins are moisture-prone, compromising the bond.
- B. Incorrect. Amalgam is not esthetic for anterior teeth and is unnecessary here.
- C. Correct. Glass ionomer chemically bonds to tooth structure even in a slightly moist field, releases fluoride, and is well suited to subgingival/cervical margins where isolation is difficult.
- D. Incorrect. Sealants are for caries-free pits and fissures, not for restoring a cavitated subgingival lesion.
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