Microtensile bond strength and sealing efficiency of all-in-one self-etching adhesives

Abstract

This study aimed to evaluate the microtensile bond strength and amount of microleakage with self-etch adhesives. For the bond strength study, 50 human third molars were randomly assigned to five groups according to the adhesive system used. In each group, half of the specimens were subjected to the microtensile test immediately after the bonding procedures and tooth sectioning, while the remaining half were subjected to the test after storage in distilled water for 3 months. For the microleakage study, following the preparation and restoration of class V cavities, 70 human molars were divided into two groups for the five adhesives; the specimens in one group were stored in distilled water for 24 h and those in the other group were stored for 3 months. In both groups, the teeth were sectioned and evaluated for dye penetration after the storage time. After 24 h, the microtensile bond strengths in descending order were as follows: Clearfil SE Bond > G Aenial Bond > Optibond All-in-One (AiO) > Adper Prompt L Pop (hereafter L Pop) > Futurabond M. After 3 months, the mTBS of all five bonding agents was decreased, although the decrease was significant only for L Pop, which showed the highest scores for leakage around the enamel margins, whereas Futurabond M showed the highest scores for leakage around the gingival margins. After 3 months, the microleakages scores significantly increased for G Aenial Bond, Futurabond M and OptibondAiO.

Evaluation of the Bond Strength at the Resin-Dentin Interface Using Self-Etching Adhesive Systems Containing Different Functional Monomers / Avaliação Da Resistência De União Na Interface Resina-Dentina Usando Sistemas Adesivos Autocondicionantes Contendo Diferentes Monômeros Funcionais

“…These characteristics allow Clearfil SE Bond adhesive results to be better than others, being considered the gold standard of adhesives in the literature [13][14][15]. Its high bond strength to dental substrates has also been confirmed in other studies [6,12]. Wang et al, 2017 [6] showed that the stable chemical bond produced by 10-MDP to the calcium of hydroxyapatite is advantageous for the durability of the bond between the adhesive and the dentin immediately and after thermocycling, because the alkyl, long and hydrophobic chain of 10-MDP leaves free from contact with water.…”

“…The best performance of Clearfil SE Bond can be explained by the joint action of the unsaturated 10-MDP monomer with the acid monomer, associated with HEMA, improving the wetting of the tooth surface and the chelation of calcium ions to dentin [11]. In addition, Clearfil SE Bond has the ability to produce less time-sensitive hybrid layers and improved polymerization degree by high camphorquinone concentration [12]. These characteristics allow Clearfil SE Bond adhesive results to be better than others, being considered the gold standard of adhesives in the literature [13][14][15].…”

Effect of hydrogel-based antibiotic intracanal medicaments on crown discoloration

“…The reasons for using the 1-step self-etch adhesive bonding agent (G-aenial) are the simplicity of the application technique, the high bond strength, and the good sealing abilities to dentine [ 38 39 ]. These abilities arise from the presence of 4-methacryloxyethyl trimellitic acid (4-META), which has a hydrophilic (carboxylic) group that is suitable for dentine bonding [ 39 ].…”

Effects of the Contents of Various Solvents in One-step Self-etch Adhesives on Shear Bond Strengths to Enamel and Dentin

“…42 Another study, by Tekce and colleagues, revealed the same findings. 43 The resistance of G-aenial Bond to deterioration could be attributed to the absence of HEMA, considering the deteriorating effect of HEMA over time. Further studies are needed to support these hypotheses.…”