Effect of adhesive luting agents on the marginal seating of cast restorations.

This study determined the effect of new adhesive luting agents on the marginal seating of cast restorations. Standardized preparations were completed on freshly extracted premolars, impressions were made, and complete metal veneer crowns were cast with a base metal alloy. The castings were placed on their respective teeth and the extent of marginal opening was recorded. They were then assigned to a luting agent group: glass ionomer cement (GI), polycarboxylate cement (PC), microfilled BIS-GMA composite resin with NPG-GMA/PMDM dentinal bonding agent (GMA + NPG), microfilled BIS-GMA/phosphate ester composite resin (GMA/PE), or zinc phosphate cement (ZP). The castings were cemented and marginal openings remeasured. ANOVA revealed that the cement groups were similar before cementation (p 0.35) but were different after cementation (p < 0.0001). Tukey's multiple comparisons test identified statistically similar groups that were different from other groups and ranked them from lesser to greater marginal opening: (GI, ZP, PC) (GMA/PE, GMA + NPG).

[1]  Z. Yu,et al.  Film thickness of new adhesive luting agents. , 1992, The Journal of prosthetic dentistry.

[2]  V. Kipnis,et al.  Effect of seating force on film thickness of new adhesive luting agents. , 1992, The Journal of prosthetic dentistry.

[3]  Smith Dc.  A new dental cement. , 1968, Australian dental journal.

[4]  John F. Johnston,et al.  A laboratory and clinical investigation of certain resin restorative and cementing materials: Part II. A twenty-eight month clinical evaluation of a resin cement☆ , 1955 .

[5]  Takao Fusayama,et al.  Relief of resistance of cement of full cast crowns , 1964 .

[6]  J. Mclean,et al.  Experimental luting agents based on the glass ionomer cements , 1977, British Dental Journal.

[7]  R. G. Craig,et al.  Physical and mechanical properties of zinc polyacrylate dental cements. , 1974, Journal of the American Dental Association.

[8]  R. Bowen.  Adhesive bonding of various materials to hard tooth tissues. IX. The concept of polyfunctional surface-active comonomers. , 1975, Journal of biomedical materials research.

[9]  H. Lee,et al.  Evaluation of a Composite Resin Crown and Bridge Luting Agent , 1972, Journal of dental research.

[10]  G. Øilo.  The extent of slits at the interfaces between luting cements and enamel, dentin and alloy. , 1978 .

[11]  R. Phillips,et al.  An evaluation of a carboxylate adhesive cement. , 1970, Journal of the American Dental Association.

[12]  A. Caputo,et al.  Microleakage of new crown and fixed partial denture luting agents. , 1992, The Journal of prosthetic dentistry.

[13]  G. Christensen.  Marginal fit of gold inlay castings. , 1966, The Journal of prosthetic dentistry.

[14]  J. Mclean,et al.  The estimation of cement film thickness by an in vivo technique , 1971, British Dental Journal.

[15]  K. D. Jørgensen.  Factors Affecting the Film Thickness of Zinc Phosphate Cements , 1960 .

[16]  R. Bowen,et al.  Adhesive Bonding of Various Materials to Hard Tooth Tissues: Improvement in Bond Strength to Dentin , 1982, Journal of dental research.

[17]  W B Eames,et al.  Techniques to improve the seating of castings. , 1978, Quintessence of dental technology.