Dentists' performance in dentin-composite resin bonding before and after hands-on course learning

Autor: Yu-Hsin Huang, Yin-Lin Wang, Po-Yen Lin, Yu-Jung Lai, Chun-Wen Cheng, Yu-Chih Chiang
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Journal of the Formosan Medical Association, Vol 119, Iss 1, Pp 260-267 (2020)
Druh dokumentu: article
ISSN: 0929-6646
DOI: 10.1016/j.jfma.2019.05.008
Popis: Background/Purpose: 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. Methods: We recruited 30 general practitioners to perform shear bond strength (SBS) tests using five adhesives: one Peak® 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 Mantel–Haenszel chi-square tests. The fracture surfaces of the samples were examined by scanning electron microscopy (SEM). Results: Using PUB caused no significant differences in SBS between pre- and post-demo samples, whereas the SBS of the two self-etch adhesives (SBU and VOB) improved in post-demo samples (p
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