Open AccessEffect of different self-etch adhesive application methods on the shear bond strengths of composite resin to dentin
Author(s) -
BERNADETTE KEREKES-MATHE,
MELINDA SZEKELY,
ORSOLYA CSISZER,
MELINDA KIS,
Vanda Roxaimigean,
Victor Nimigean,
KINGA DORNER
Publication year - 2020
Publication title -
romanian biotechnological letters
Language(s) - English
Resource type - Journals
eISSN - 2248-3942
pISSN - 1224-5984
DOI - 10.25083/rbl/25.6/2188.2193
Subject(s) - dentin , adhesive , materials science , bond strength , composite material , composite number , adhesion , dentistry , shear strength (soil) , dental bonding , layer (electronics) , medicine , environmental science , soil science , soil water
Dental adhesion is a complex phenomenon that has challenged the conventional biomechanical principles applied to Dental Medicine. Many of the advances in aesthetic restorative dentistry are due to dental adhesion: bond of direct resin-based restorations, bond of all ceramic restorations, bond of orthodontic brackets, bond of indirect resin-based restorations and improving tooth shape and colour. An adhesive is a material that not only joins two substrates together, but also transfers loads from one surface to another. Therefore, the performance of dental adhesion is measured through adhesion strength. This paper aims at investigating the influence of application method and the optional preliminary acid etching on the shear bond strengths of a composite resin to dentin, using self-etch adhesives in single or double layer. Buccal surfaces of 40 extracted human teeth were prepared and dental adhesives were applied on the dentin surfaces. Microshear bond strength increased when double-layer application was used, but this improvement was adhesive dependent. The use of optional preliminary acid etching did not improve significantly the bond strength to dentin.