IADR Abstract Archives

Bond Strength Testing of All-in-One Adhesives on Enamel and Dentin

Objectives: To compare the shear bond strength (SBS) of 5 All-in-One (AIO) adhesive systems on enamel and dentin at 24hrs and 10,000cycles.

Methods: Adhesives: iBOND Self-Etch (IBSE, Heraeus Kulzer), Clearfil S3 Bond (S3B, Kuraray), Adper Easy Bond (AEB, 3M ESPE), Optibond solo Plus (OSP, Kerr) and Xeno IV (XIV, Dentsply-Caulk). Adhesives were applied according to manufacturers' instructions and light-activated. 160 human molars were randomly divided into 20 groups (n=8). Flat enamel and dentin surfaces were prepared on SiC paper, grit 120 through 320. Venus Diamond composite, shade A2 (Heraeus Kulzer) was filled in cylindrical plastic molds (Ultradent equipment) and cured for 20s. Light-activation of adhesives and composite was done with a LED curing unit (Translux Power Blue, Heraeus Kulzer). Shear bond strength (shear rate:1mm/min) was determined after 24h water-storage of specimens at 37°C and after additional thermocycling (10k, 5/55°C). Statistical analysis was done by three-way ANOVA, with post-hoc analysis conducted via Tukey's HSD.

Results:

Results after 24h at 37C

Enamel

Dentin

IBSE

AEB

S3B

OAO

XIV

IBSE

AEB

S3B

OAO

XIV

Mean Value [Mpa]

32.8

30.6

29.4

24.6

26.5

39.3

42.9

38.3

40.2

33.3

Standard Deviation [Mpa]

4

3.3

5

5.6

5

2.8

3.8

7.6

8.3

7.9

Results after 10,000 Thermocycles

Enamel

Dentin

IBSE

AEB

S3B

OAO

XIV

IBSE

AEB

S3B

OAO

XIV

Mean Value [Mpa]

31.3

25.3

25.5

32.4

13.1

33.7

39.5

39.5

35.6

28.9

Standard Deviation [Mpa]

2.6

3.9

3.6

6

4.4

5.7

3.1

5.1

6.9

13.4

Conclusion: The AIO adhesives had significantly higher SBS when applied to dentin than when applied to enamel (p<0.001). Bond values were significantly higher after 24hours at 37°C than after additional thermocycling (p=0.001). The adhesive system was also a statistically significant factor (p<0.001); the post-hoc analysis revealed that XIV exhibited lower SBS than all other systems. Sponsored in part by Heraeus Kulzer


AADR/CADR Annual Meeting
2010 AADR/CADR Annual Meeting (Washington, D.C.)
Washington, D.C.
2010
19
Dental Materials 1: Adhesion - Bond Strength Testing and Mechanisms
  • Kugel, Gerard  ( Tufts University, Boston, MA, USA )
  • Perry, Ronald D.  ( Tufts University, Boston, MA, USA )
  • Finkelman, Matthew  ( Tufts University, Boston, MA, USA )
  • Perry, Ross  ( Tufts University, Boston, MA, USA )
    • Oral Session
    Adhesive-Enamel/Dentin Bond Strength
    03/03/2010