IADR Abstract Archives

Compatibility of Self-adhesive Cement with Bonding Agents

Objective: This study was conducted to evaluate compatibility of self-adhesive cement SmartCem2 (SC2) with selected bonding agents.  Methods: Four bonding agents were used with SmartCem2: Prime&Bond NT (PBNT), XP Bond (XB), Xeno III (XN3) and Xeno IV (XN4). OptiBond All-In-One (OAIO) and NX3 were used as control. Extracted human molars were wet ground to expose flat surfaces using 320 and 600 grit abrasive paper. Adhesives were applied and light-cured per manufacturers' instructions except for XB, which was not light cured. Cement was loaded to plastic straw, placed onto tooth surface and allowed self-cure. Specimens were stored in 37°C water for 24-hr. Shear bond strength (SBS) was obtained with Instron 4400 at crosshead speed of 1 mm/min. The data was analyzed with ANOVA (n=6, a=0.05, Tukey HSD test).  Results: Mean values for SBS (MPa) with standard deviations are listed below:

 

 

PBNT-SC2

XB-SC2

XN3-SC2

XN4-SC2

OAIO-NX3

Dentin

16.4(3.5)A

14.4(3.3)A

14.8(2.9)A

17.4(2.8) A

8.5(3.1) B

Enamel

17.6(2.7)A

19.0(3.0)A

14.7(1.4)A

14.9(2.8) A

16.8(5.1) A

*Within the same row, groups connected by the same letter are not significantly different.

 

Conclusion: Within limitation of this study, all light cured adhesives exhibited adequate bond strength with SmartCem2 in self-cure mode without use of accessory self-cure activator. This suggests compatibility of light cured adhesives with SmartCem2. In comparison with control of OAIO-NX3, PBNT, XB, XN3 and XN4 have significantly higher bond strength on dentin when used with SmartCem2. In addition, with XB, there is no need to light cure adhesive before cement placement.  Therefore, an option to use bonding agents together with SmartCem2 is provided to dentists for non-retentive tooth preps or situations where moisture control is difficult.


AADR/CADR Annual Meeting
2010 AADR/CADR Annual Meeting (Washington, D.C.)
Washington, D.C.
2010
234
Dental Materials 3: Ceramic-based Materials and Cements
  • Liu, Huaibing  ( Dentsply International, Milford, DE, USA )
  • Hayes, Linda  ( Dentsply International, Milford, DE, USA )
  • Waller, Marnita  ( Dentsply International, Milford, DE, USA )
    • Poster Session
    Ceramics — Strength, Fatigue, and Wear; Cements — Bonding to Ceramics, Hard Tissues, Media Interactions, and Provisional Materials
    03/04/2010