IADR Abstract Archives
Bond Strength of an Experimental Universal Adhesive
Objectives: Universal dental adhesives are versatile bonding agents that may be used on dentin and enamel with or without etch and rinse systems. The aim of this study was to assess the shear bond strength (SBS) of an experimental universal adhesive (ADH-XTE,3M) to enamel and dentin in total-etch (TE) and self-etch (SE) applications in comparison to other universal adhesives.
Methods: Bovine incisors were embedded in cold-cure acrylic resin. The labial surface of each tooth was ground to expose enamel or dentin. Teeth were randomized into groups and tooth surfaces were treated with the experimental universal adhesive ADH-XTE (3M), ScotchbondTM Universal(3M), G-Premio Bond(GC), Prime&Bond ActiveTM(Dentsply-Sirona), or i-BondÒ Universal(Kulzer GmbH) according to manufacturer’s instructions for self-etch or total-etch using ScotchbondTM Universal Etchant(3M) on enamel and dentin (n=10). A 2.36mm diameter and 2mm high cylindrical button of FiltekTM Z250 A3(3M) was light-cured onto the treated surface using EliparTM S10 Curing Light(3M). Samples were stored at 36°C for 24 hours and SBS was measured using the notched-edge method according to ISO 29022:2013. SBS was calculated by dividing the force measurement (N) from the notched-edge testing method by the area calculated from the average of three measurements of sample diameter (mm).
Results: SBS values are given in MPa with their standard deviations. Data per substrate and etching mode were analyzed by ANOVA and multiple comparisons using the Tukey test (p<0.05). Means with same letters are statistically not different. (Table 1)
Conclusions: SBS for ADH-XTE was not statistically different from SBS for Scotchbond UniversalTM in all etching modes and substrates. There was no statistically significant difference between ADH-XTE and the material with the highest mean SBS in each treatment group.
Methods: Bovine incisors were embedded in cold-cure acrylic resin. The labial surface of each tooth was ground to expose enamel or dentin. Teeth were randomized into groups and tooth surfaces were treated with the experimental universal adhesive ADH-XTE (3M), ScotchbondTM Universal(3M), G-Premio Bond(GC), Prime&Bond ActiveTM(Dentsply-Sirona), or i-BondÒ Universal(Kulzer GmbH) according to manufacturer’s instructions for self-etch or total-etch using ScotchbondTM Universal Etchant(3M) on enamel and dentin (n=10). A 2.36mm diameter and 2mm high cylindrical button of FiltekTM Z250 A3(3M) was light-cured onto the treated surface using EliparTM S10 Curing Light(3M). Samples were stored at 36°C for 24 hours and SBS was measured using the notched-edge method according to ISO 29022:2013. SBS was calculated by dividing the force measurement (N) from the notched-edge testing method by the area calculated from the average of three measurements of sample diameter (mm).
Results: SBS values are given in MPa with their standard deviations. Data per substrate and etching mode were analyzed by ANOVA and multiple comparisons using the Tukey test (p<0.05). Means with same letters are statistically not different. (Table 1)
Conclusions: SBS for ADH-XTE was not statistically different from SBS for Scotchbond UniversalTM in all etching modes and substrates. There was no statistically significant difference between ADH-XTE and the material with the highest mean SBS in each treatment group.
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