Dental Research Journal

ORIGINAL ARTICLE
Year
: 2021  |  Volume : 18  |  Issue : 1  |  Page : 25-

Effect of accelerated aging and double application on the dentin bond strength of universal adhesive system


Mahmoud Bahari1, Siavash Savadi Oskoee3, Mohammad Esmaeel Ebrahimi Chaharom3, Mehdi Abed Kahnamoui3, Sarah Gholizadeh2, Farnaz Davoodi3 
1 Dental and Periodontal Research Center, Dental Faculty; Department of Operative Dentistry, Dental Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
2 Department of Restorative Dentistry, Dental Faculty, Ahvaz Jundishapur University of Medical Science, Khuzestan, Ahvaz, Iran
3 Department of Restorative Dentistry, Dental Faculty, Urmia University of Medical Sciences, Urmia, Iran

Correspondence Address:
Dr. Sarah Gholizadeh
Department of Restorative Dentistry, Dental Faculty, Ahvaz Jundishapur University of Medical Science, Khuzestan, Ahvaz
Iran

Background: Despite the many advantages of simplified adhesive systems, there are concerns about the durability of the adhesive layer over time. The aim was to investigate the effects of various aging methods and double application of an adhesive layer on the bond strength of the universal adhesive system using etch-and-rinse (ER) and self-etch (SE) strategies. Materials and Methods: In this in vitro study, the occlusal enamel of 120 extracted, intact human third molars was removed to expose the dentin. Then, the samples were randomly divided into four groups of thirty according to All-Bond Universal (ABU) adhesive application strategy (ER and SE) and the number of adhesive layers (1 or 2). Then, each group was subdivided into three subgroups of ten according to aging method (control, thermal cycling, and 10% sodium hypochlorite [NaOCl]). The shear bond strength was measured at the strain rate of 0.5 mm/min. Data were analyzed using three-way ANOVA and Tukey's post hoc tests (P < 0.05). Results: The effect of adhesive application strategy (P < 0.001) and aging method (P < 0.001) on the bond strength was statistically significant, but the effect of the double application was not statistically significant (P > 0.05). In addition, the interactive effect of adhesive application strategy–aging method was significant (P = 0.005). Conclusion: Using ABU with ER strategy leads to higher dentin bond strength compared to the SE method in the control and thermal cycling groups. However, no significant differences were observed between ER and SE strategies after aging with the NaOCl. Furthermore, the double application might not have any effect on the bond strength and durability.


How to cite this article:
Bahari M, Oskoee SS, Chaharom ME, Kahnamoui MA, Gholizadeh S, Davoodi F. Effect of accelerated aging and double application on the dentin bond strength of universal adhesive system.Dent Res J 2021;18:25-25


How to cite this URL:
Bahari M, Oskoee SS, Chaharom ME, Kahnamoui MA, Gholizadeh S, Davoodi F. Effect of accelerated aging and double application on the dentin bond strength of universal adhesive system. Dent Res J [serial online] 2021 [cited 2021 Apr 17 ];18:25-25
Available from: https://www.drjjournal.net/article.asp?issn=1735-3327;year=2021;volume=18;issue=1;spage=25;epage=25;aulast=Bahari;type=0