In vivo solubility of three types of luting cement.
The in vivo solubility of glass-ionomer, zinc polycarboxylate, and zinc phosphate luting cements was compared. The specimens were inserted in the lingual flanges of the mandibular dentures of 10 edentulous patients. After 8 months, the cement specimens were removed and the amount of solubility was measured with direct techniques. Scanning electron microscopy was used to evaluate surface topography after disintegration. The elements present in each cement were determined with energy-dispersive spectroscopy. The zinc phosphate and zinc polycarboxylate cements demonstrated approximately equal solubility. Glass-ionomer cement exhibited significantly less solubility than did either zinc phosphate or polycarboxylate cement.
Hersek
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Department of Prosthodontics, University of Hacettepe, Faculty of Dentistry, Ankara, Turkey.
Canay
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D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003738:Dental Cements / Q000737:chemistry*; D003826:Denture, Complete, Lower; D005069:Evaluation Studies as Topic; D005899:Glass Ionomer Cements / Q000737:chemistry; D006801:Humans; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D011076:Polycarboxylate Cement / Q000737:chemistry; D012995:Solubility; D015036:Zinc Phosphate Cement / Q000737:chemistry
D003738:Dental Cements; D005899:Glass Ionomer Cements; D011076:Polycarboxylate Cement; D015036:Zinc Phosphate Cement