IADR Abstract Archives
Adhesion Bond-Strength Measurements after a Novel In-Office Fluoride Treatment
Objectives: A novel in-office fluoride treatment provides both efficiency and efficacy of enamel-fluoride-uptake in a short time compared with typical fluoride varnish treatments. This enables other dental procedures to be performed within the same office appointment. This study investigated the impact a novel fluoride treatment had on restorative adhesion values to enamel and dentin after use.
Methods: An experimental in-office NaF containing coating treatment, Scotchbond Universal Adhesive (SBU) in self-etch mode and Z250 composite restorative material (3M) were tested for adhesion bond-strength on different substrates. Bovine incisors were potted in acrylic molds, polished with 120-grit sandpaper and smoothed with 320-grit sandpaper to expose enamel or dentin. Enamel and dentin specimens were treated with the novel fluoride coating and stored in 37C artificial saliva for 15 minutes. The coating was removed, and specimens were rinsed. Some tooth samples were polished again with 320-grit sandpaper before bonding to simulate clinical preparation. Specimens were bonded with SBU and Z250 following ISO-29022 Adhesion-Notched-Edge Shear Bond Strength Test. Bonded adhesion samples were stored in DI water at 37C for at least 24-hr prior to debonding. Shear bond strength was measured via a notched-edge test method (crosshead speed: 1 mm/min) on an Instron testing system. Adhesion strength data after different procedures were compared using one-way ANOVA with Tukey’s Test (p<0.05).
Results: The table shows the shear bond strength measurements after different procedures on enamel and dentin.
Conclusions: This study showed there was no statistically significant difference amongst the treatment procedures used with both the enamel and dentin substrates, highlighting the potential to combine the novel fluoride treatment with a restorative procedure in same dental appointment.
Methods: An experimental in-office NaF containing coating treatment, Scotchbond Universal Adhesive (SBU) in self-etch mode and Z250 composite restorative material (3M) were tested for adhesion bond-strength on different substrates. Bovine incisors were potted in acrylic molds, polished with 120-grit sandpaper and smoothed with 320-grit sandpaper to expose enamel or dentin. Enamel and dentin specimens were treated with the novel fluoride coating and stored in 37C artificial saliva for 15 minutes. The coating was removed, and specimens were rinsed. Some tooth samples were polished again with 320-grit sandpaper before bonding to simulate clinical preparation. Specimens were bonded with SBU and Z250 following ISO-29022 Adhesion-Notched-Edge Shear Bond Strength Test. Bonded adhesion samples were stored in DI water at 37C for at least 24-hr prior to debonding. Shear bond strength was measured via a notched-edge test method (crosshead speed: 1 mm/min) on an Instron testing system. Adhesion strength data after different procedures were compared using one-way ANOVA with Tukey’s Test (p<0.05).
Results: The table shows the shear bond strength measurements after different procedures on enamel and dentin.
Conclusions: This study showed there was no statistically significant difference amongst the treatment procedures used with both the enamel and dentin substrates, highlighting the potential to combine the novel fluoride treatment with a restorative procedure in same dental appointment.
