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Cements

Dental cements have several functions in restorative dentistry. One is to serve as a luting agent to fill the space between a restoration fabricated outside the mouth and the tooth structure. By flowing into irregularities in both materials and then hardening, the cement provides mechanical retention as previously discussed. A second function is to serve as a filling material for either permanent or temporary restorations. Cements are also used as bases for other restorative materials as previously described.

Types of Cements

Dental cements include zinc phosphate, zinc oxide and eugenol, polycarboxylate (zinc oxide powder mixed with polyacrylic acid) and glass ionomer cements (GICs).