Resin Cement Classification — MFDS Part 1 MCQ

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ModerateDental MaterialsResin Cement ClassificationMFDS Part 1

A clinician is comparing resin-based luting cements for the adhesive cementation of an indirect ceramic restoration. When these cements are classified according to their polymerisation mechanism, which classification is correct?

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Correct answer: E — Light-cured, chemically cured, or dual-cured

The correct answer is E. Resin-based luting cements can be classified by polymerisation mechanism as light-cured, chemically cured (self-cured), or dual-cured. Dual-cured products combine light-initiated and chemical polymerisation, allowing setting where light transmission through a ceramic restoration may be reduced. Option B describes categories associated principally with glass-ionomer materials, while option C lists separate families of conventional water-based cements rather than polymerisation modes. Option A classifies materials by intended duration of use, not setting reaction. Option D includes terminology used for lining materials and does not represent the recognised polymerisation classification of resin cements.

Reference: Santos M et al. The impact of inorganic fillers, organic content, and polymerization mode on the degree of conversion of monomers in resin-matrix cements for restorative dentistry: a scoping review. Clinical Oral Investigations. 2024;28:454. https://pubmed.ncbi.nlm.nih.gov/39066793/