• Dantagnan, Claire-Adeline
• Boudrot, Maureen
• François, Philippe
• Attal, Jean-Pierre
• Abdel-Gawad, Sarah

Abstract

<jats:title>Abstract</jats:title><jats:sec><jats:title>Objective</jats:title><jats:p>To evaluate the shear bond strength (SBS) of a restorative resin-modified glass ionomer cement (RMGIC) for orthodontic bracket bonding.</jats:p></jats:sec><jats:sec><jats:title>Materials and methods</jats:title><jats:p>One hundred twenty-one human teeth were randomly divided into 11 groups (<jats:italic>n</jats:italic> = 11) according to the surface treatment applied (H<jats:sub>3</jats:sub>PO<jats:sub>4</jats:sub> ± Transbond Plus (TSEP) or Scotchbond Universal (SU)), and the adhesive used (Riva LC HV (RIVA), Fuji Ortho (FUJI), and Transbond XT (TXT)). For each sample, a metal button was bonded. SBS tests were performed at 1 week and debonded specimens were observed for failure modes determination. One-way ANOVA followed by Tukey’s post hoc test was used to compare SBS differences and Fisher’s exact test to analyze the failure modes (<jats:italic>p</jats:italic> &lt; 0.05).</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>TSEP + FUJI and H<jats:sub>3</jats:sub>PO<jats:sub>4</jats:sub> + SU + TXT showed the highest SBS values while H<jats:sub>3</jats:sub>PO<jats:sub>4</jats:sub> + TSEP + RIVA showed the lowest value. Cohesive failure and mixed failure were found in the groups with SU and TXT and adhesive failure in the other groups.</jats:p></jats:sec><jats:sec><jats:title>Discussion/Conclusions</jats:title><jats:p>The bonding of orthodontic attachments to enamel could be performed with any of the three materials studied. The use of a universal adhesive in the bonding protocol could optimize the adhesion values. Clinical studies would be needed to confirm the results obtained.</jats:p></jats:sec>

Topics

• surface
• glass
• glass
• strength
• cement
• resin
• size-exclusion chromatography
• liquid chromatography