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Remaining Dentin Thickness (RDT) is the most critical factor; 2 mm of dentin provides the best protection against thermal and chemical irritants. Incorrects:

: A structured 45-question professional exam covering restoration techniques and dental materials. operative+dentistry+mcqs+pdf+new

Comparison between amalgam (mechanical retention) and composite (micromechanical bonding). Top 2026 PDF & Practice Links Remaining Dentin Thickness (RDT) is the most critical

B) Bonded to unbonded surface area ratio (higher C-factor = higher shrinkage stress) and pulp to guide instrumentation.

: Understanding the histological structure of enamel, dentin, and pulp to guide instrumentation.