Seating and retention of complete crowns with a new adhesive resin cement.
The retentive property of cast gold complete crowns cemented with an adhesive resin cement (Panavia Ex) was compared with retention of crowns cemented with zinc phosphate cement (Flecks) and the conventional resin cement (Comspan). The effect of these agents on seating of crowns also was evaluated. Panavia cement exhibited the highest retentive strength, with values almost twice those obtained with zinc phosphate cement. However, the difference in mean retention values of crowns cemented with Comspan cement or with zinc phosphate cement was not statistically significant. Both resin cements used in this study provided better seating of crowns than did zinc phosphate cement.
Tjan
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Department of Restorative Dentistry, Loma Linda University, School of Dentistry.
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D000269:Adhesives / Q000737:chemistry*; D002484:Cementation; D003442:Crowns; D001840:Dental Bonding; D003738:Dental Cements / Q000737:chemistry*; D003781:Denture Retention; D006047:Gold Alloys; D006801:Humans; D010710:Phosphates / Q000737:chemistry; D019279:Resin Cements; D012117:Resins, Synthetic / Q000737:chemistry*; D013314:Stress, Mechanical; D013499:Surface Properties; D013718:Tensile Strength; D015036:Zinc Phosphate Cement / Q000737:chemistry
D000269:Adhesives; D003738:Dental Cements; C061504:Flecks; D006047:Gold Alloys; D010710:Phosphates; D019279:Resin Cements; D012117:Resins, Synthetic; C061503:Comspan; D015036:Zinc Phosphate Cement; C052304:Panavia EX