Effect of Silane Coupling Agent Combined with Different Adhesive Systems on Adhesive Strength and Microleakage of Aging Composite Resin

doi:10.13701/j.cnki.kqyxyj.2021.10.016

Abstract

Abstract: Objective: To investigate the effects of different bonding systems or combined silane coupling agents on the bonding strength and microleakage of aged composite resins. Methods: Nano-type composite resin was used to prepare resin blocks and stored in distilled water at (37±1) ℃ for 2 months. The surface was polished by carborundum bur and divided into five groups according to different surface treatment Methods: A, control group (without chemical treatment); B, two-step self-etching bonding system (Clearfil SE Bond, CSE group); C, silane coupling agent pretreatment and two-step self-etching bonding system (silane + CSE group); D, universal bonding system (Single Bond Universal, SBU group); and E, silane coupling agent pretreatment and general bonding system (silane+ SBU group). After treatment, the fresh resin was used for filling and curing, respectively. The samples were sliced longitudinally along two vertical directions using a low-speed diamond cutting machine, and 10 specimens with cross-sectional area of 1.0mm2 were prepared in each group. The microtensile test was carried out and all the fractures were observed under stereoscopic microscope. After the bonding was completed, the microleakage of the bonding interface was observed by methylene blue staining. Results: The microtensile bonding strength of the experimental group was significantly higher than that of the control group (P<0.05). Silane could increase the bonding strength between fresh and aged resin, and the microtensile bonding strength of silane SBU group was the largest (P<0.05). Under the stereoscopic microscope, the fracture modes of the samples in the experimental group were mainly cohesive fracture, while those in the control group were mainly adhesive interface fracture. The microleakage between fresh and aged resins in the experimental group was significantly less than that in the control group (P<0.05), but there was no significant difference among four experimental groups (P>0.05). Conclusion: The surface application of adhesive or combined silane coupling agent can significantly improve the bonding strength and reduce the microleakage between aged resin and fresh resin, and the repair effect of silane coupling agent combined with universal adhesive has better repair effect.

Key words: aged composite resin, bonding system, silane coupling agent, micro-tensile bonding strength, microleakage

LIU Xiaoxue, LI Yanping, HE Lina, LI Ji, DAI Xinrui, NIU Yumei. Effect of Silane Coupling Agent Combined with Different Adhesive Systems on Adhesive Strength and Microleakage of Aging Composite Resin[J]. Journal of Oral Science Research, 2021, 37(10): 936-939.

References

[1] 陈智,陈瑞甜.牙体修复新观念[J].口腔医学研究,2019,35(1):1-9.
[2] 林斐,刘伟,闫鹏, 等.复合树脂间粘结的微拉伸强度研究[J].北京大学学报(医学版),2015,47(1): 124-128.
[3] Irmak O, Celiksoz O, Yilmaz B, et al. Adhesive system affects repair bond strength of resin composite [J]. J Istanb Univ Fac Dent, 2017, 51(3):25-31.
[4] Wendler M, Belli R, Panzer R, et al. Repair bond strength of aged resin composite after different surface and bonding treatments [J]. Materials (Basel), 2016, 9(7):547.
[5] Flury S, Dulla FA, Peutzfeldt A. Repair bond strength of resin composite to restorative materials after short- and long-term storage [J]. Dent Mater, 2019, 35(9):1205-1213.
[6] Bayar Bilen H, Çokakolu S. Effects of one-step orthodontic adhesive on microleakage and bracket bond strength: An in vitro comparative study [J]. Int Orthod, 2020, 18(2):366-373.
[7] Alqarni D, Nakajima M, Hosaka K, et al. The repair bond strength to resin matrix in cured resin composites after water aging [J]. Dent Mater J, 2019, 38(2):233-240.
[8] Aquino C, Mathias C, Barreto SC, et al. Repair bond strength and leakage of non-aged and aged bulk-fill composite [J]. Oral Health Prev Dent, 2020, 18(1):783-791.
[9] Dursun MN, Ergin E, Ozgunaltay G. The effect of different surface preparation methods and various aging periods on microtensile bond strength for composite resin repair [J]. Niger J Clin Pract, 2021, 24(2):282-291.
[10] Ahmadizenouz G, Esmaeili B, Taghvaei A, et al. Effect of different surface treatments on the shear bond strength of nanofilled composite repairs [J]. J Dent Res Dent Clin Dent Prospects, 2016, 10(1):9-16.
[11] Yoshihara K, Nagaoka N, Sonoda A, et al. Effectiveness and stability of silane coupling agent incorporated in 'universal' adhesives [J]. Dent Mater, 2016, 32(10):1218-1225.
[12] 邢远航,林斐,岳林.硅烷偶联剂对复合树脂间粘接强度的影响[J].中华口腔医学杂志,2018,53(5):328-332.
[13] Yao C, Zhou L, Yang H, et al. Effect of silane pretreatment on the immediate bonding of universal adhesives to computer-aided design/computer-aided manufacturing lithium disilicate glass ceramics [J]. Eur J Oral Sci, 2017, 125(2):173-180.
[14] Loomans BA, Mesko ME, Moraes RR, et al. Effect of different surface treatment techniques on the repair strength of indirect composites [J]. J Dent, 2017, 59:18-25.
[15] Durmuşlar S, Ölmez A. Microtensile bond strength and failure modes of flowable composites on primary dentin with application of different adhesive strategies[J]. Contemp Clin Dent, 2017, 8(3):373-379.