Overview:

The restoration longevity depends on a high dentin-composite bond quality. This study investigated learning outcomes when using etch-and-rinse and self-etch adhesives among general practitioners in a hands-on bonding test course.

In this study they recruited 30 general practitioners to perform shear bond strength (SBS) tests using five adhesives: one Peakâ Universal Bond (PUB) etch-and-rinse and four Futurabond DC, Single Bond universal (SBU), Versa Optibond (VOB), and Tetric-N Bond Self-Etch (TNS)self-etch adhesives. SBS tests were conducted at pre-demonstration (pre-demo), post-demonstration (post-demo), and 24-h storage (delayed bonding) stages. SBS data were analyzed with paired Student’s t-tests. We defined 17 MPa as “qualified bond strength (QBS)”. The percentages of samples with SBS achieving QBS were analyzed using Mantele Haenszel chi-square tests. The fracture surfaces of the samples were examined by scanning electron microscopy (SEM).

This continuing education hands-on course does help dentists to improve the bond strength especially when the self-etch system is used.

Authors:

Yu-Hsin Huang, Yin-Lin Wang, Po-Yen Lin, Yu-Jung Lai, Chun-Wen Cheng, Yu-Chih Chiang

Journal:

Journal of the Formosan Medical Association