- Clinical and Experimental Health Sciences
- Vol: 11 Issue: 4
- Does Double-layer Application of a Universal Adhesive Affect Its Bonding to Different Tooth Substrat...
Does Double-layer Application of a Universal Adhesive Affect Its Bonding to Different Tooth Substrates?
Authors : Aybüke Uslu Tekce, Cansu Atalay, Meltem Nermin Dursun, A. Atila Ertan, A. Rüya Yazici
Pages : 794-800
Doi:10.33808/clinexphealthsci.932520
View : 13 | Download : 3
Publication Date : 2021-10-26
Article Type : Research
Abstract :Objective: evaluate the influence of single- or double-layer application of a universal adhesive on the bond strength to different tooth substrates. Methods: To Seventy-two extracted sound human teeth were used for the study. The teeth were divided into three groups according to tooth substrates; enamel, coronal and radicular dentin (n=24). The roots of the teeth were separated from the crowns and then abraded to obtain flat surfaces. The specimens were randomly allocated into 2 groups in accordance with application layers of universal adhesive (n=12). The universal adhesive, Adhese Universal was applied in self-etch mode as single- or double-layer (without light-curing of the first layer) to different substrates. Following the adhesive application, enamel, coronal- and radicular dentin substrates were restored with a resin composite (Tetric N-Ceram). The specimens were subjected to shear bond strength (SBS) test after storage in distilled water (37℃,24 h). Representative fractured and interface samples from each group were examined by a scanning electron microscope. The data were analyzed using two-way ANOVA(α = 0.05). Results: There was no statistically difference in SBS values between single- and double-layer applications of the tested universal adhesive on different dental substrates (p>0.05). Whilst no difference was occurred between the different dental substrates in the single-layer application (p>0.05), double-layer application on coronal dentin presented significantly higher bond strength than enamel (p<0.05). Conclusion: Double-layer application of the tested universal adhesive did not improve the bond strength regardless of different dental substrates.Keywords : Universal adhesive, Shear bond strength, Double-layer application