Restorative & Materials · single question
What is the BEST luting/cementing agent to use for an all-ceramic crown?
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Correct answer: C. Resin cement
✓ C) Resin cement is correct.
Resin cement is the preferred luting agent for all-ceramic crowns (especially lithium disilicate, zirconia, and feldspathic) because: (1) it provides excellent bond strength to ceramic via silane coupling agent + bonding, (2) it has superior marginal seal, (3) it reinforces the ceramic, reducing fracture risk, (4) it has minimal water sorption. RMGI and GIC are acceptable for zirconia but inferior for other ceramics. Glass ionomer alone is inadequate for all-ceramic restorations requiring strength.
Resin cement is the preferred luting agent for all-ceramic crowns (especially lithium disilicate, zirconia, and feldspathic) because: (1) it provides excellent bond strength to ceramic via silane coupling agent + bonding, (2) it has superior marginal seal, (3) it reinforces the ceramic, reducing fracture risk, (4) it has minimal water sorption. RMGI and GIC are acceptable for zirconia but inferior for other ceramics. Glass ionomer alone is inadequate for all-ceramic restorations requiring strength.
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