Dental cements: zinc oxide eugenol, zinc phosphate, glass ionomer
Dental Materials · Dental (BDS)
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Study notes
A deep cavity filling needs a protective layer under it. Which cement and why? A glass ionomer (or ZOE) lining is chosen: it bonds to dentin, releases fluoride that helps resist further decay, and is kinder to the pulp than a strongly acidic cement. Zinc phosphate, though strong, is initially very acidic and is used for cementing crowns, not as a pulp-friendly lining.
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