IADR Abstract Archives
Bond Strength of All-in-one Adhesives With and Without Acid Etch
Objectives: This study compares the shear bond strengths (SBS) of all-in-one adhesives on cut enamel and dentin with (E) and without (SE) a 15s phosphoric acid etch, and of etch-and-rinse adhesives.
Materials and methods: Bovine incisors were embedded in cold-cure acrylic resin. The labial surface of each tooth was ground to expose enamel or dentin. Cylindrical buttons of FiltekTM Z250 (4.67mm diameter, 2mm height) were cured on the tooth surfaces treated with Adper Easy Bond (AEB,3M ESPE), iBond SE (IBSE,Heraeus Kulzer), Xeno V (XV,Dentsply), AdheSE One (AO,Ivoclar-Vivadent), Syntac Classic (SC,Ivoclar-Vivadent), Prime&Bond NT (PBNT,Dentsply), XP-Bond (XPB,Dentsply), ExciTE (EX,Ivoclar-Vivadent), Scotchbond 1XT (SB1XT,3M ESPE) according to the instructions for use by 6 dentists (n=12). For the all-in-one adhesives, an additional set of specimens was prepared after a 15s phosphoric acid etch. After storage of 24h in water at 37°C, the specimens were tested in shear mode using a Zwick Z010 universal testing machine (crosshead speed 2mm/min).
Results: The table shows the SBS in MPa. The standard deviations (SD) are given in parentheses. All data were analyzed by ANOVA and multiple comparisons using Fisher's LSD procedure (p<0.05). Same letters indicate statistically the same means.
Material | E_Enamel_SBS | SE_Enamel_SBS | E_Dentin_SBS | SE_Dentin_SBS |
AEB | 28.2(4.0)ab | 19.4(3.3)fghij | 23.8(6.5)cdef | 22.2(4.0)efgh |
IBSE | 26.9(3.2)bcd | 21.0(5.6)efghi | 15.4(8.5)jklmn | 18.1(2.9)hijk |
XV | 26.8(6.9)bcd | 18.5(3.3)ghijk | 16.7(4.6)ijkl | 16.3(4.5)jklm |
AO | 22.8(6.6)defg | 16.3(3.6)jklm | 17.6(5.6)hijk | 5.4(4.5)o |
PBNT | 32.0(7.6)a | - | 11.7(4.2)n | - |
XPB | 27.9(6.3)abc | - | 13.4(7.5)lmn | - |
EX | 24.9(5.6)bcde | - | 11.9(5.0)mn | - |
SB1XT | 28.9(4.6)ab | - | 14.8(9.3)klmn | - |
Conclusion: Multiple statistically significant differences were found. Overall AEB provided the most consistent bond strengths.