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Self-etching primer vs. phosphoric acid: An alternative concept for composite-to-enamel bonding
THE JOURNAL OF PROSTHETIC DENTISTRY
USHIWATA AND VIEIRA DE MORAES
19. Duncan JD. The casting accuracy of nickel-chromium alloys for fixed prostheses. J Prosthet Dent 1982;47:63-8. 20. Davis SH, Kelly JR, Campbell SD. Use of an elastomeric material to improve the occlusal seat and marginal seal of cast restorations. J Prosthet Dent 1989;62:288-91. 21. White SN, Sorensen JA, Kang SK. Improved marginal seating of cast restorations using a silicone disclosing medium. Int J Prosthodont 1991;4: 323-6. 22. Grajower R, Lewinstein I, Zeltser C. The effective minimum cement thickness of zinc phosphate cement for luted non-precious crowns. J Oral Rehabil 1985;12:235-45. 23. Christensen GJ. Marginal fit of gold inlay castings. J Prosthet Dent 1966; 16:297-305. 24. Saito T. Preparos dentais funcionais em prótese fixa. [In Portuguese]. Sao Paulo, Brazil: Quintessence; 1989. 25. McLean JW, Von Fraunhofer JA. The estimation of cement film thickness by an in vivo technique. Br Dent J 1971;131:107-11. 26. Ushiwata O. Study of marginal fit of NiCr copings before and after inter-
Noteworthy Abstracts of the Current Literature
nal adjustments using stone master die duplicates and a disclosing agent. Dissertation (Dentistry Master of Science degree). São Paulo, Brazil: University of the State of São Paulo–UNESP, São José dos Campos School of Dentistry, 1997. Reprint requests to: DR OSSAMU USHIWATA R. CARLOS SAMPAIO, 304 - CJ. 81 SÃO PAULO, SP CEP — 01311-000 BRAZIL FAX: 5511-289-6224 E-MAIL: [email protected] Copyright © 2000 by The Editorial Council of The Journal of Prosthetic Dentistry. 0022-3913/2000/$12.00 + 0. 10/1/104622 doi:10.1067/mpr.2000.104622
Self-etching primer vs. phosphoric acid: An alternative concept for composite-to-enamel bonding Hanning M, Reinhardt K-J, Bott B. Oper Dent 1999;24:17280.
Purpose. This investigation (1) measured the composite resin-to-enamel shear bond strength after enamel conditioning with 3 self-etching priming agents; (2) analyzed the etching effect of self-etching priming agents at the enamel surface; and (3) evaluated the marginal adaptation of composite resin restorations in class 2 cavities conditioned with self-etching primers in comparison to enamel etching with phosphoric acid. Material and methods. Labial surfaces of 24 bovine incisors were prepared and divided into 4 groups. Three groups were conditioned by the application of self-etching bonding agents: Clearfil Liner Bond 2, Etch & Prime or Resulcin AquaPrime MonoBond, and 1 group (control) had the enamel surfaces treated according to the conventional acid-etch technique using Ecusit-Mono bonding material. Samples were stored in water at 37°C for 24 hours before shear bond testing. Results. The application of Resulcin AquaPrime MonoBond resulted in the highest shear bond strength (34.0 MPa), which was significant. Application of Etch & Prime 3.0 resulted in significantly lower values of shear bond strength (21.9 MPa), compared with Ecusit-Mono applied after enamel etching with phosphoric acid (26.3 MPa). There were no significant differences in shear bond strength values with Clearfil Liner Bond 2 (24.2 MPa) or Ecusit-Mono (26.3 MPa). Conclusion. Self-etching primers can provide an effective alternative to conventional phosphoric acid etchants in conditioning the enamel surface to secure a durable bonding and marginal seal of composite resin restorations. 22 References. —ME Razzoog
366
VOLUME 83 NUMBER 3
USHIWATA AND VIEIRA DE MORAES
19. Duncan JD. The casting accuracy of nickel-chromium alloys for fixed prostheses. J Prosthet Dent 1982;47:63-8. 20. Davis SH, Kelly JR, Campbell SD. Use of an elastomeric material to improve the occlusal seat and marginal seal of cast restorations. J Prosthet Dent 1989;62:288-91. 21. White SN, Sorensen JA, Kang SK. Improved marginal seating of cast restorations using a silicone disclosing medium. Int J Prosthodont 1991;4: 323-6. 22. Grajower R, Lewinstein I, Zeltser C. The effective minimum cement thickness of zinc phosphate cement for luted non-precious crowns. J Oral Rehabil 1985;12:235-45. 23. Christensen GJ. Marginal fit of gold inlay castings. J Prosthet Dent 1966; 16:297-305. 24. Saito T. Preparos dentais funcionais em prótese fixa. [In Portuguese]. Sao Paulo, Brazil: Quintessence; 1989. 25. McLean JW, Von Fraunhofer JA. The estimation of cement film thickness by an in vivo technique. Br Dent J 1971;131:107-11. 26. Ushiwata O. Study of marginal fit of NiCr copings before and after inter-
Noteworthy Abstracts of the Current Literature
nal adjustments using stone master die duplicates and a disclosing agent. Dissertation (Dentistry Master of Science degree). São Paulo, Brazil: University of the State of São Paulo–UNESP, São José dos Campos School of Dentistry, 1997. Reprint requests to: DR OSSAMU USHIWATA R. CARLOS SAMPAIO, 304 - CJ. 81 SÃO PAULO, SP CEP — 01311-000 BRAZIL FAX: 5511-289-6224 E-MAIL: [email protected] Copyright © 2000 by The Editorial Council of The Journal of Prosthetic Dentistry. 0022-3913/2000/$12.00 + 0. 10/1/104622 doi:10.1067/mpr.2000.104622
Self-etching primer vs. phosphoric acid: An alternative concept for composite-to-enamel bonding Hanning M, Reinhardt K-J, Bott B. Oper Dent 1999;24:17280.
Purpose. This investigation (1) measured the composite resin-to-enamel shear bond strength after enamel conditioning with 3 self-etching priming agents; (2) analyzed the etching effect of self-etching priming agents at the enamel surface; and (3) evaluated the marginal adaptation of composite resin restorations in class 2 cavities conditioned with self-etching primers in comparison to enamel etching with phosphoric acid. Material and methods. Labial surfaces of 24 bovine incisors were prepared and divided into 4 groups. Three groups were conditioned by the application of self-etching bonding agents: Clearfil Liner Bond 2, Etch & Prime or Resulcin AquaPrime MonoBond, and 1 group (control) had the enamel surfaces treated according to the conventional acid-etch technique using Ecusit-Mono bonding material. Samples were stored in water at 37°C for 24 hours before shear bond testing. Results. The application of Resulcin AquaPrime MonoBond resulted in the highest shear bond strength (34.0 MPa), which was significant. Application of Etch & Prime 3.0 resulted in significantly lower values of shear bond strength (21.9 MPa), compared with Ecusit-Mono applied after enamel etching with phosphoric acid (26.3 MPa). There were no significant differences in shear bond strength values with Clearfil Liner Bond 2 (24.2 MPa) or Ecusit-Mono (26.3 MPa). Conclusion. Self-etching primers can provide an effective alternative to conventional phosphoric acid etchants in conditioning the enamel surface to secure a durable bonding and marginal seal of composite resin restorations. 22 References. —ME Razzoog
366
VOLUME 83 NUMBER 3