The influence of different surface treatment protocols and bonding agents on the repair microtensile bond strength of six-month’ aged composite: An in vitro study




Objective: to compare the effect of three surface treatment protocols and two intermediate agents on repairing aged composite, regarding microtensile bond strength (µTBS) and mode of fracture, at two time intervals. Material and methods: Six-month aged microhybrid composite blocks, were randomly distributed into three groups, subjected to; Fine, Super Fine grit diamond burs or Erbium- Yag Laser surface treatment. Each block had both One Coat bond SL (Bond) and Brilliant Flow flowable composite (Flow) intermediate agents, alongside. Blocks were incrementally repaired using nanohybrid composite, cut into beams, then randomly subjected either immediately (IM) to µTBS test or after thermocycling (TC) for 5000 cycle. Mode of failure was determined using stereomicroscope. Data were analyzed through three-way ANOVA followed by pairwise comparison with Bonferroni correction. Kruskal Wallis test compared groups for failure mode analysis (?=0.05)

Results: Super Fine grit showed the highest mean µTBS compared to control for both intermediate agents, IM and after TC at P<0.05. No difference between Fine grit and Laser application for all groups (P>0.05). IM, Bond showed the highest µTBS compared to TC, Flow for all tested groups. Beams roughened with Fine and Super Fine burs showed significantly lower adhesive failures than those roughened with Laser. Flow suffers significantly higher adhesive failure than those with Bond. For TC tested groups; beams with Super Fine bur and Bond showed significantly lower adhesive failure at P=0.029.

Conclusions: Super Fine grit and Bond provide the highest µTBS and the least adhesive failure; moreover TC resulted in significant decrease in µTBS.

Author Biographies

Reham S Saleh, National research centre

Restorative and dental materials department

Engie M Safwat, National research centre

Restorative and dental materials department


Cavalcanti AN, De Lima AF, Peris AR, Mitsui FHO, Marchi GM. Effect of surface treatments and bonding agents on the bond strength of repaired composites. J Esthet Restor Dent. 2007;19(2):90-98.

Magni E, Ferrari M, Papacchini F, Hickel R, Ilie N. Influence of ozone on the composite-to-composite bond. Clin Oral Investig. 2011;15(2):249-256.

Rathke A, Tymina Y, Haller B. Effect of different surface treatments on the composite–composite repair bond strength. Clin Oral Investig. 2009;13(3):317.

Kanzow P, Wiegand A, Goestemeyer G, Schwendicke F. Understanding the management and teaching of dental restoration repair: systematic review and meta-analysis of surveys. J. Dent. 2018;69:1-21.

Kanzow P, Wiegand A, Schwendicke F, Göstemeyer G. Same, same, but different? A systematic review of protocols for restoration repair. J. Dent. 2019.

Özcan M, Cura C, Brendeke J. Effect of aging conditions on the repair bond strength of a microhybrid and a nanohybrid resin composite. J Adhes Dent. 2010;12(6):551.

Özcan M, Corazza PH, Marocho SMS, Barbosa SH, Bottino MA. Repair bond strength of microhybrid, nanohybrid and nanofilled resin composites: effect of substrate resin type, surface conditioning and ageing. Clin Oral Investig. 2013;17(7):1751-1758.

Yesilyurt C, Kusgoz A, Bayram M, Ulker M. Initial repair bond strength of a nano‐filled hybrid resin: Effect of surface treatments and bonding agents. J Esthet Restor Dent. 2009;21(4):251-260.

Blum IR, Lynch CD, Wilson NH. Factors influencing repair of dental restorations with resin composite. Clin Cosmet Investig Dent. 2014;6:81.

Eren D, Doğan CA, Bektaş ÖÖ. Effect of Different Surface Treatments and Roughness on the Repair Bond Strength of Aged Nanohybrid Composite. Photobiomodul Photomed Laser Surg. 2019.

Palasuk J, Platt J, Cho S, Levon J, Brown D, Hovijitra S. Effect of surface treatments on microtensile bond strength of repaired aged silorane resin composite. Oper Dent. 2013;38(1):91-99.

Junior SAR, Ferracane JL, Della Bona Á. Influence of surface treatments on the bond strength of repaired resin composite restorative materials. Dent Mater. 2009;25(4):442-451.

Batista GR, Kamozaki MBB, Gutierrez NC, Ferraz Caneppele TM, Gomes Torres CR. Effects of Different Surface Treatments on Composite Repairs. J Adhes Dent. 2015;17(5).

Valente LL, Silva MF, Fonseca AS, Münchow EA, Isolan CP, Moraes RR. Effect of Diamond Bur Grit Size on Composite Repair. J Adhes Dent. 2015;17(3).

Oskoee PA, Mohammadi N, Chaharom MEE, et al. Effect of surface treatment with Er; Cr: YSSG, Nd: YAG, and CO2 lasers on repair shear bond strength of a silorane-based composite resin. J Dent Res Dent Clin Dent Prospects. 2013;7(2):61.

Oskoee PA, Oskoee SS, Rikhtegaran S, et al. Effect of various laser surface treatments on repair shear bond strength of aged silorane-based composite. Lasers Med Sci. 2017;8(4):186.

Kiomarsi N, Saburian P, Chiniforush N, Karazifard M-J, Hashemikamangar S-S. Effect of thermocycling and surface treatment on repair bond strength of composite. J Clin Exp Dent. 2017;9(8):e945.

Papacchini F, Magni E, Radovic I, et al. Effect of intermediate agents and pre-heating of repairing resin on composite-repair bonds. Oper Dent. 2007;32(4):363-371.

Kiomarsi N, Espahbodi M, Chiniforush N, Karazifard MJ, Kamangar SSH. In vitro evaluation of repair bond strength of composite: Effect of surface treatments with bur and laser and application of universal adhesive. Laser Ther. 2017;26(3):173-180.

Papacchini F, Toledano M, Monticelli F, et al. Hydrolytic stability of composite repair bond. Eur J Oral Sci. 2007;115(5):417-424.

Papacchini F, Radovic I, Magni E, et al. Flowable composites as intermediate agents without adhesive application in resin composite repair. Am J Dent. 2008;21(1):53-58.

Baena E, Vignolo V, Fuentes M, Ceballos L. Influence of repair procedure on composite-to-composite microtensile bond strength. Am J Dent. 2015;28(5):255-260.

Kouros P, Koliniotou-Koumpia E, Spyrou M, Koulaouzidou E. Influence of material and surface treatment on composite repair shear bond strength. J Conserv Dent. 2018;21(3):251.

Papacchini F, Dall Oca S, Chieffi N, et al. Composite-to-composite microtensile bond strength in the repair of a microfilled hybrid resin: effect of surface treatment and oxygen inhibition. J Adhes Dent. 2007;9(1):25.

Vural U, Gurgan S. Repair potential of a new glass hybrid restorative system. Niger J Clin Pract. June 1, 2019 2019;22(6):763-770.

Souza R, Castilho A, Fernandes V, Bottino M, Valandro L. Durability of microtensile bond to nonetched and etched feldspar ceramic: self-adhesive resin cements vs conventional resin. J Adhes Dent. 2011;13(2):155-162.

Costa T, Ferreira S, Klein-Júnior C, Loguercio A, Reis A. Durability of surface treatments and intermediate agents used for repair of a polished composite. Oper Dent. 2010;35(2):231-237.






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