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Bond Strength of Fiber Posts to Composite Core: Effect of Surface Treatment With Er,Cr:YSGG Laser and Thermocycling

Sedighe Sadat HashemiKamangar, Masoome Hasani Tabatabaii, Saman Kalantari, Mehrzad GholampourDehaki, Ladan Ranjbar Omrani, Hooman Ebrahimi




Introduction: This study aimed to determine the bond strength of fiber post to composite core following surface treatment with Er,Cr:YSGG laser at different powers and sandblasting with and without thermocycling.
Methods: In this experimental study, 30 fiber posts (Glassix, Nordin, Switzerland) were randomly divided into 5 groups of sandblasting, no treatment and laser irradiation at 1, 1.5 and 2 W powers. Following composite filling and mounting, 1-mm thick sections were made for push-out bond strength testing. Half of the samples in each group were subjected to thermocycling (n=15). Two-way analysis of variance (ANOVA) was used to analyze the bond strength values. Pairwise comparisons were made using Tukey test (P < 0.05).
Results: Effect of treatment method on push-out bond strength of fiber post to composite core was significant (P = 0.017), while thermocycling had no significant effect on bond strength (P = 0.964). Pairwise comparison of surface treatment methods revealed no significant difference in groups with and without thermocycling (P > 0.05), but Er,Cr:YSGG laser irradiation with 1 W power yielded significantly higher bond strength than the control group (P =0.01).
Conclusion: Irradiation of Er,Cr:YSGG laser at 1 W power increased the bond strength of fiber post to composite core. Thermocycling slightly decreased the bond strength at the fiber post-core interface.


Bond strength; Composite; Er,Cr:YSGG laser; Post.


Balbosh A, Kern M. Effect of surface treatment on retention of glass-fiber endodontic posts. J Prosthet Dent. 2006;95(3):218-223. doi:10.1016/j.prosdent.2006.01.006.

Fredriksson M, Astback J, Pamenius M, Arvidson K. A retrospective study of 236 patients with teeth restored by carbon fiber-reinforced epoxy resin posts. J Prosthet Dent. 1998;80(2):151-157.

Monticelli F, Grandini S, Goracci C, Ferrari M. Clinical behavior of translucent-fiber posts: a 2-year prospective study. Int J Prosthodont. 2003;16(6):593-596.

Malferrari S, Monaco C, Scotti R. Clinical evaluation of teeth restored with quartz fiber-reinforced epoxy resin posts. Int J Prosthodont. 2003;16(1):39-44.

Robbins JW. Guidelines for the restoration of endodontically treated teeth. J Am Dent Assoc. 1990;120(5):558.

Gutmann JL. The dentin-root complex: anatomic and biologic considerations in restoring endodontically treated teeth. J Prosthet Dent. 1992;67(4):458-467.

Schwartz RS, Robbins JW. Post placement and restoration of endodontically treated teeth: a literature review. J Endod. 2004;30(5):289-301. doi:10.1097/00004770-200405000- 00001.

Kallio TT, Lastumaki TM, Vallittu PK. Bonding of restorative and veneering composite resin to some polymeric composites. Dent Mater. 2001;17(1):80-86.

Lastumaki TM, Lassila LV, Vallittu PK. The semi-interpenetrating polymer network matrix of fiber-reinforced composite and its effect on the surface adhesive properties. J Mater Sci Mater Med. 2003;14(9):803-809.

Mannocci F, Sherriff M, Watson TF, Vallittu PK. Penetration of bonding resins into fibre-reinforced composite posts: a confocal microscopic study. Int Endod J. 2005;38(1):46-51. doi:10.1111/j.1365-2591.2004.00900.x.

Bouillaguet S, Troesch S, Wataha JC, Krejci I, Meyer JM, Pashley DH. Microtensile bond strength between adhesive cements and root canal dentin. Dent Mater. 2003;19(3):199- 205.

Ferrari M, Cagidiaco MC, Grandini S, De Sanctis M, Goracci C. Post placement affects survival of endodontically treated premolars. J Dent Res. 2007;86(8):729-734. doi:10.1 177/154405910708600808.

Vano M, Goracci C, Monticelli F, et al. The adhesion between fibre posts and composite resin cores: the evaluation of microtensile bond strength following various surface chemical treatments to posts. Int Endod J. 2006;39(1):31-39. doi:10.1111/j.1365-2591.2005.01044.x.

Faria MI, Gomes E, Messias DC, Silva Filho JM, Souza Filho CB, Paulino SM. Tensile strength of glass fiber posts submitted to different surface treatments. Braz Dent J. 2013;24(6):626-629. doi:10.1590/0103-6440201302365.

Soares CJ, Santana FR, Pereira JC, Araujo TS, Menezes MS. Influence of airborne-particle abrasion on mechanical properties and bond strength of carbon/epoxy and glass/ bis-GMA fiber-reinforced resin posts. J Prosthet Dent. 2008;99(6):444-454. doi:10.1016/s0022-3913(08)60106-7.

Kriznar I, Jevnikar P, Fidler A. Effect of Er:YAG laser pretreatment on bond strength of a composite core build-up material to fiber posts. Lasers Med Sci. 2015;30(2):733- 740. doi:10.1007/s10103-013-1412-4.

Aksornmuang J, Foxton RM, Nakajima M, Tagami J. Microtensile bond strength of a dual-cure resin core material to glass and quartz fibre posts. J Dent. 2004;32(6):443-450. doi:10.1016/j.jdent.2004.03.001.

Matinlinna JP, Lassila LV, Ozcan M, Yli-Urpo A, Vallittu PK. An introduction to silanes and their clinical applications in dentistry. Int J Prosthodont. 2004;17(2):155-164.

Goracci C, Raffaelli O, Monticelli F, Balleri B, Bertelli E, Ferrari M. The adhesion between prefabricated FRC posts and composite resin cores: microtensile bond strength with and without post-silanization. Dent Mater. 2005;21(5):437- 444. doi:10.1016/j.dental.2004.07.012.

Harashima T, Kinoshita JI, Kimura Y, et al. Morphological comparative study on ablation of dental hard tissues at cavity preparation by Er: YAG and Er, Cr: YSGG lasers. Photomedicine and Laser Therapy. 2005;23(1):52-5.

Hossain M, Nakamura Y, Yamada Y, Murakami Y, Matsumoto K. Microleakage of composite resin restoration in cavities prepared by Er,Cr:YSGG laser irradiation and etched bur cavities in primary teeth. J Clin Pediatr Dent. 2002;26(3):263-268.

Arslan H, Barutcigil C, Yilmaz CB, Ceyhanli KT, Topcuoglu HS. Push-out bond strength between composite core buildup and fiber-reinforced posts after different surface treatments. Photomed Laser Surg. 2013;31(7):328-333. doi:10.1089/pho.2013.3478.

Tuncdemir AR, Yildirim C, Guller F, Ozcan E, Usumez A. The effect of post surface treatments on the bond strength of fiber posts to root surfaces. Lasers Med Sci. 2013;28(1):13-18. doi:10.1007/s10103-012-1053-z.

Kurtulmus-Yilmaz S, Cengiz E, Ozan O, Ramoglu S, Yilmaz HG. The effect of Er,Cr:YSGG laser application on the micropush-out bond strength of fiber posts to resin core material. Photomed Laser Surg. 2014;32(10):574-581. doi:10.1089/pho.2014.3780.

Cekic-Nagas I, Sukuroglu E, Canay S. Does the surface treatment affect the bond strength of various fibre-post systems to resin-core materials? J Dent. 2011;39(2):171- 179. doi:10.1016/j.jdent.2010.11.008.

Elsaka SE. Influence of chemical surface treatments on adhesion of fiber posts to composite resin core materials. Dent Mater. 2013;29(5):550-558. doi:10.1016/j. dental.2013.03.004.

Kulunk S, Kulunk T, Yenisey M. Effects of different surface pre-treatments on the bond strength of adhesive resin cement to quartz fiber post. Acta Odontol Scand. 2012;70(6):547-554. doi:10.3109/00016357.2011.629623.

Valandro LF, Yoshiga S, de Melo RM, et al. Microtensile bond strength between a quartz fiber post and a resin cement: effect of post surface conditioning. J Adhes Dent. 2006;8(2):105-111.

D’Arcangelo C, D’Amario M, Vadini M, De Angelis F, Caputi S. Influence of surface treatments on the flexural properties of fiber posts. J Endod. 2007;33(7):864-867. doi:10.1016/j.joen.2007.03.004.

Kern M, Thompson VP. Sandblasting and silica coating of a glass-infiltrated alumina ceramic: volume loss, morphology, and changes in the surface composition. J Prosthet Dent. 1994;71(5):453-461.

Yenisey M, Kulunk S. Effects of chemical surface treatments of quartz and glass fiber posts on the retention of a composite resin. J Prosthet Dent. 2008;99(1):38-45. doi:10.1016/s0022-3913(08)60007-4.

Spohr AM, Borges GA, Junior LH, Mota EG, Oshima HM. Surface modification of In-Ceram Zirconia ceramic by Nd:YAG laser, Rocatec system, or aluminum oxide sandblasting and its bond strength to a resin cement. Photomed Laser Surg. 2008;26(3):203-208. doi:10.1089/ pho.2007.2130.

Arslan H, Kurklu D, Ayranci LB, et al. Effects of post surface treatments including Er:YAG laser with different parameters on the pull-out bond strength of the fiber posts. Lasers Med Sci. 2014;29(5):1569-1574. doi:10.1007/s10103- 013-1485-0.

Sipahi C, Piskin B, Akin GE, Bektas OO, Akin H. Adhesion between glass fiber posts and resin cement: evaluation of bond strength after various pre-treatments. Acta Odontol Scand. 2014;72(7):509-515. doi:10.3109/00016357.2013.87 5586.

Akin GE, Akin H, Sipahi C, Piskin B, Kirmali O. Evaluation of surface roughness and bond strength of quartz fiber posts after various pre-treatments. Acta Odontol Scand. 2014;72(8):1010-1016. doi:10.3109/00016357.2014.93 9710.

Hossain M, Nakamura Y, Yamada Y, Kimura Y, Matsumoto N, Matsumoto K. Effects of Er,Cr:YSGG laser irradiation in human enamel and dentin: ablation and morphological studies. J Clin Laser Med Surg. 1999;17(4):155-159. doi:10.1089/clm.1999.17.155.

Garbui BU, de Azevedo CS, Zezell DM, Aranha AC, Matos AB. Er,Cr:YSGG laser dentine conditioning improves adhesion of a glass ionomer cement. Photomed Laser Surg. 2013;31(9):453-460. doi:10.1089/pho.2013.3546.

Kursoglu P, Motro PF, Yurdaguven H. Shear bond strength of resin cement to an acid etched and a laser irradiated ceramic surface. J Adv Prosthodont. 2013;5(2):98-103. doi:10.4047/jap.2013.5.2.98.

Cho SD, Rajitrangson P, Matis BA, Platt JA. Effect of Er,Cr:YSGG laser, air abrasion, and silane application on repaired shear bond strength of composites. Oper Dent. 2013;38(3):E1-9. doi:10.2341/11-054-l.

Rizoiu I, Kohanghadosh F, Kimmel AI, Eversole LR. Pulpal thermal responses to an erbium,chromium: YSGG pulsed laser hydrokinetic system. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1998;86(2):220-223.

Boschian Pest L, Cavalli G, Bertani P, Gagliani M. Adhesive post-endodontic restorations with fiber posts: push-out tests and SEM observations. Dent Mater. 2002;18(8):596- 602.

Bell AM, Lassila LV, Kangasniemi I, Vallittu PK. Bonding of fibre-reinforced composite post to root canal dentin. J Dent. 2005;33(7):533-539. doi:10.1016/j.jdent.2004.11.014.

Monticelli F, Toledano M, Tay FR, Sadek FT, Goracci C, Ferrari M. A simple etching technique for improving the retention of fiber posts to resin composites. J Endod. 2006;32(1):44-47. doi:10.1016/j.joen.2005.10.005.

Salameh Z, Papacchini F, Ounsi HF, Goracci C, Tashkandi E, Ferrari M. Adhesion between prefabricated fiber-reinforced posts and different composite resin cores: a microtensile bond strength evaluation. J Adhes Dent. 2006;8(2):113-117.

Xie C, Han Y, Zhao XY, Wang ZY, He HM. Microtensile bond strength of one- and two-step self-etching adhesives on sclerotic dentin: the effects of thermocycling. Oper Dent. 2010;35(5):547-555. doi:10.2341/10-025-l.

Goracci C, Tavares AU, Fabianelli A, et al. The adhesion between fiber posts and root canal walls: comparison between microtensile and push-out bond strength measurements. Eur J Oral Sci. 2004;112(4):353-361. doi:10.1111/j.1600-0722.2004.00146.x.

Drummond JL, Sakaguchi RL, Racean DC, Wozny J, Steinberg AD. Testing mode and surface treatment effects on dentin bonding. J Biomed Mater Res. 1996;32(4):533-541. doi:10.1002/(SICI)1097-4636(199612)32:4<533::AID-JBM6>3.0.CO;2-S.