Open AccessEffect of ultrasonic vibration on microshear bond strength of flowable composite to enamel
Author(s) -
Mahtab Ebrahimi Nezhad,
Dana Jafarpour,
Mahdi Gholamrezaei Saravi
Publication year - 2020
Publication title -
brazilian dental science
Language(s) - English
Resource type - Journals
ISSN - 2178-6011
DOI - 10.14295/bds.2021.v24i1.2224
Subject(s) - enamel paint , materials science , composite material , bond strength , composite number , universal testing machine , ultrasonic sensor , adhesive , ultimate tensile strength , physics , layer (electronics) , acoustics
Objective: The present study aimed to assess the influence of vibration effect on microshear bond strength (µSBS) of flowable composite to enamel. Material and Methods: Sixty non-carious extracted human premolar teeth were collected and randomly divided into six groups (n = 10) after being trimmed to produce a smooth flat surface: Flowable composites [Wave (SDI), Wave HV (SDI) and Grandioflow (Voco)] were used as bonding agents without or with vibration using an ultrasonic scaler (Mini Piezon, EMS, Switzerland). Composite resin, with an internal diameter of 0.7mm and height of 1mm, was cured on the substrate. The specimens’ µSBS was tested by a microtensile tester (Bisco, USA) at a crosshead speed of 0.5 mm/min. The bond strength values were analyzed using one-way ANOVA and post hoc Tukey test (p 0.05). Conclusions: The application of ultrasonic vibration might not be advantageous in terms of improving the shear bond strength of flowable composites to enamel.KEYWORDSBond strength; Enamel; Flowable composite; Ultrasonic; Vibration.