website: AADR 37th Annual Meeting

ABSTRACT: 0828  

Eighteen-Month Storage Adhesion Study of AdperTM ScotchbondTM SE Self-Etch Adhesive

B.A. SHUKLA1, V.A. RUSSELL2, R.R. WERTISH1, and S.M. AASEN1, 13M ESPE Dental Products, Saint Paul, MN, USA, 23M ESPE Dental Products, St. Paul, MN, USA

Objectives:  This study investigated the effects of long-term storage on the shear bond strengths (SBS) of a new two-bottle self-etch adhesive AdperTM ScotchbondTM SE (SBSE, 3M ESPE) versus a fifth generation total-etch adhesive, AdperTM Single Bond Plus (SB+, 3M ESPE) on two substrates: bovine cut enamel (E) and superficial dentin (D).   

Methods:  A notched-edge shear method was used to measure the SBS to bovine E and D (composite: FiltekTM Z250 A2, 3M ESPE).  Bonded specimens were stored in water at 37C and tested after storage intervals of 24 hr (baseline data, "t=0") and 3, 6, 9, 12 and 18 months. 

Results: Mean (std dev) SBS in MPa and p-values (two-sample t-tests, p<0.05) are listed in the table.

Storage Time (mo)

SBSE, E

SB+, E

SBSE, D

SB+, D

0

41.6 (7.3) n=8

28.0 (6.2) n=7

36.0 (5.5) n=7

37.3 (6.7) n=7

3

38.6 (4.8) n=8

38.1 (2.9) n=8

42.1 (7.8) n=8

43.9 (6.5) n=7

6

37.8 (4.2) n=8

37.5 (5.8) n=8

37.3 (6.2) n=7

43.6 (5.3) n=8

9

37.3 (5.6) n=8

38.1 (4.4) n=7

35.6 (8.7) n=7

45.0 (10.4) n=7

12

39.5 (7.8) n=8

31.4 (8.0) n=8

31.8 (5.4) n=8

30.8 (5.2) n=6

18

38.4 (5.2) n=8

38.2 (3.6) n=8

32.6 (3.1) n=8

33.9 (5.7) n=8

p-value, t=0 vs. 18 mo.

0.330

0.002

0.149

0.308

Conclusions:  There were no statistical differences (p>0.05) in SBS for SBSE after bonded samples were aged for 3, 6, 9, 12 or 18 months for a given substrate (E or D), compared to baseline data.  SBSE was statistically equivalent (p>0.05) to the control SB+ at each of the aging time points for a given substrate (E or D).  The p-values for SBSE vs. SB+ at 18 months were 0.927 and 0.568 for E and D, respectively.
Seq #125 - Environment, Material, and Technique Impacts on Bond Strength
2:45 PM-3:45 PM, Friday, April 4, 2008
Hilton Anatole Hotel Trinity I - Exhibit Hall

Back to the Dental Materials 1: Adhesion - Bond Strength Testing and Mechanisms Program

Back to Top
1619 Duke Street, Alexandria, VA 22314-3406 · Phone +1.703.548.0066 · Fax +1.703.548.1883
©Copyright 2008 American Association for Dental Research. All Rights Reserved.