0341 Bond Strength of Composite Resins Using a New One-step Adhesive System
H. JUNG, K.-H. FRIEDL, K.-A. HILLER, and G. SCHMALZ, University of Regensburg, Germany

Objectives: The aim of this study was to compare bond strengths of four composite resins (Tetric Ceram [Vivadent], Filtek Z250 [3MESPE], Spectrum TPH [DeTrey/Dentsply], and Herculite XRV [Kerr]) using (1) the adhesive systems provided by the manufacturers (Excite [Vivadent], Scotchbond 1 [3MESPE], Prime & Bond NT [De Trey/Dentsply], Optibond Solo Plus [Kerr]) or (2) a new one-step adhesive system (Adper Prompt L-Pop [3MESPE]).

Methods: Shear bond strengths to enamel and dentin were determined according to ISO TS 11405. Pairwise comparisons among groups were made using the Mann-Whitney-U-test (p < 0.05). Median values and 25- and 75% quartiles calculated from 10 replications are shown in the following table:

Results:

Tetric Ceram/

Excite

Tetric Ceram/

Adper

Filtek Z250/

Scotchbond 1

Filtek Z250/

Adper

Enamel

33.6 (31.0/37.0)

39.6 (29.0/42.9)

32.2 (30.4/37.8)

33.0 (31.9/39.2)

Dentin

34.5 (16.3/39.7)

7.9 (4.0/10.8)

30.0 (24.8/39.9)

20.0 (12.9/26.0)

 

Spectrum TPH/

Prime&Bond NT

Spectrum TPH/

Adper

Herculite XRV/

Optibond Solo Plus

Herculite XRV/

Adper

Enamel

44.1 (39.3/45.5)

37.1 (23.2/39.4)

29.7 (26.5/34.3)

28.9 (23.6/31.6)

Dentin

32.3 (20.9/37.9)

3.9 (2.7/8.5)

32.1 (27.5/37.1)

2.7 (1.7/17.1)

Conclusions: For enamel median bond strengths were higher than 28.9 MPa for all test combinations with no system showing significantly better values. Only Tetric Ceram/Excite, Filtek Z250/Scotchbond 1, and Herculite XRV/Optibond Solo Plus showed no significant differences between enamel and dentin. Adper Prompt L-Pop provided lower values in dentin compared to enamel for each composite. In dentin Adper Prompt L-Pop always showed significantly lower bond strengths when not used with the recommended composite. This study was supported by 3MESPE, Seefeld, Germany.

Seq #49 - Self-etching Adhesive Systems 3
11:00 AM-12:15 PM, Thursday, 26 June 2003 Svenska Massan Exhibition Hall B

Back to the Dental Materials: I - Adhesion-Composite Bond Strength Program
Back to the 81st General Session of the International Association for Dental Research (June 25-28, 2003)

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