Tensile Bond Strength of Composite Resin Treated with Er:YAG Laser

Er:YAG 레이저를 활용한 와동형성시 컴포짓 결합강도

  • Shin, Min (Department of Oral Medicine and Wonkwang Dental Research Center, School of Dentistry, Wonkwang University) ;
  • Ji, Young-Duk (Department of Oral Medicine and Wonkwang Dental Research Center, School of Dentistry, Wonkwang University) ;
  • Rhu, Sung-Ho (Department of Oral Medicine and Wonkwang Dental Research Center, School of Dentistry, Wonkwang University) ;
  • Cho, Jin-Hyoung (Department of Oral Medicine and Wonkwang Dental Research Center, School of Dentistry, Wonkwang University)
  • 신민 (원광대학교 치과대학 구강내과학교실 및 원광치의학연구소) ;
  • 지영덕 (원광대학교 치과대학 구강내과학교실 및 원광치의학연구소) ;
  • 류성호 (원광대학교 치과대학 구강내과학교실 및 원광치의학연구소) ;
  • 조진형 (원광대학교 치과대학 구강내과학교실 및 원광치의학연구소)
  • Published : 2005.06.30


This in vitro study evaluated the influence of a flowable composite resin on the tensile bond strength of resin to enamel and dentin treated with Er:YAG laser and diamond bur. 96 Buccal enamel and mid-coronal dentin were laser-irradiated using an Er:YAG laser and treated with diamond bur. Each groups(48) were divided two small groups depends on acid-etching procedure. Light-cure flowable resin(Metafil Flo) and self-cure resin(Clearfil FII New Bond) were used in this study. After surface etching with 37% phosphoric acid and the application of an adhesive system, specimens were prepared with a hybrid composite resin. After 24hours storage in distilled water at 37$^{\circ}C$, all samples were submitted to the tensile bond strength evaluation, using a universal testing machine(Z020, Zwick, Germany). The obtained results were as follows: 1. TBS of acid-etching group were higher than those of non-etching group in both enamel and dentin treated with Er:YAG laser and diamond bur. Laser 'conditioning' was clearly less effective than acid-etching. Moreover, acid etching lased enamel and dentin significantly improved the microTBS of M-Flo. 2. In enamel, TBS of laser-irradiated group were lower than those of bur-prepared group. However, in flowable resin subgroup, there were not differed those between two groups in dentin. 3. In laser-treated group, TBS of flowable composite resin were higher than those of self-curing resin in dentin, however, there was no difference in enamel. From this study, we can conclude that the self- and light-cure composite resin bonded significantly less effective to lased than to bur-cut enamel and dentin, and that acid-etch procedure remains mandatory even after laser ablation. We suggest that Er:YAG laser was useful for preparing dentin cavity with flowable resin filling.


  1. Hibst R, Keller U, Stainer R. The effect of pulsed Er:YAG laser radiation on dental hard tissues. Laser Med Surg 1988; 4: 163-165
  2. Hibst R, Keller U. Experimental stuies of the application of the Er:YAG laser on the dental hard substances: I. Measurement of the ablation rate. Laser Surg Med 1989;9:338-344 https://doi.org/10.1002/lsm.1900090405
  3. Paghdiwala AF, Vaidyanahan TK. Evaluation of Er:YAG laser radiation of hard dental tissue: analysis of temperature change, depth of cuts and structural effects. Scanning Micros. 1993;7:989-997
  4. Hibst R, Keller U. Effect of water spray and repetition rate on the temperature elevation during Er:YAG laser ablation of dentin. SPIE 1995;2623:139-144
  5. Tyas MJ, Anusavice KJ, Frencken JE. Minimal intervention dentistry a review. Int Dent J 2000; 50:1-12 https://doi.org/10.1111/j.1875-595X.2000.tb00540.x
  6. Degrange H, Roulet JF. Minimally Invasive Dentistry with Bonding. Chicago: Quintessence Publishing, 1997
  7. Keller U, Hibst R. Er:YAG laser effects on oral hard and soft tissues. In: Miserendino LJ, Pick RM, eds. Lasers in dentistry. Chicago: Quintessence Publishing, 1995; 161-172
  8. Visuri SR, Gilbert JL, Wright DD, Wigdor HA, Walsh JT. Shear strength of composite bonded to Er:YAG laser-prepared dentin. J Dent Res 1996; 75: 599-605 https://doi.org/10.1177/00220345960750011401
  9. Attrill DC, Farrar SR, King TA, Dickinson MR, Davies RM, Blinkhon AS. Er: YAG ( = 2.94 $\mu m$) laser etching of dental enamel as an alternative to acid etching. Lasers Med Sci 2000; 15: 154-161 https://doi.org/10.1007/PL00011311
  10. Armengol V, Jean A, Rohanizadeh R, Hamel H. Scanning electron microscopic analysis of diseased and healthy dental hard tissues after Er:YAG laser irradiation: in vitro study. J Endodont 1999; 25:543-546 https://doi.org/10.1016/S0099-2399(99)80376-8
  11. Kameyama A, Kawada E, Takizawa M, Oda Y, Hirai Y. Influence of different acid conditioners on the tensile bond strength of 4-META/MMA-TBB resin to Er:YAG laser- irradiated bovine dentin. J Adhesive Dent 2000; 2: 297-304
  12. van Meerbeek B, Vargas M, Inoue S, Yoshida Y, Peumans M, Lambrechts P, Vanherle G. Adhesives and cements to promote preservation dentistry. Oper Dent 2001; 26: 119-144
  13. Kataumi M, Nakajima M, Yamada T, Tagami J. Tensile bond strength and SEM evaluation of Er:YAG laser irradiateddentin using dentin adhesive. Dent Mat J 1998; 17: 125-138 https://doi.org/10.4012/dmj.17.125
  14. Donadio-Moura J, Gouw-Soares S, Freitas PM, Navarro RS, Powell LG, Edurado CP. Tensile bond strength of a flowable composite resin to Er:YAGlaser-treated dentin. Laser Surg Med 2005; 9999:1-5
  15. Pashley DH, Carvalho RM, Sano H, Nakajima M, Yoshiyama M, Shono Y, Fernandes CA, Tay F. The microtensile bond test: a review. J Adhesive Dent 1999; 1: 299-309
  16. Inoue S, Vargas MA, van Meerbeek B, Abe Y, Yoshida Y, Lambrechts P, Vanherle G, Sano H. Micro-tensile bond strength of eleven modern adhesives to dentin. J Adhesive Dent 2001; 3: 237-246
  17. Tay FR, Carvalho R, Sano H, Pashley DH. Effect of smear layers on the bonding of a self-etching primer to dentin. J Adhesive Dent 2000; 2: 99-116
  18. Carvalho RM, Santiago SL, Fernandes CAO, Suh BI, Pashley DH. Effects of prism orientation on tensile strength of enamel. J Adhesive Dent 2000; 2: 251-257
  19. Yoshiyama M, Matsuo T, Ebisu S, Pashley D. Regional bond strengths of self-etching/self-priming adhesive systems. J Dent 1998; 26: 609-616 https://doi.org/10.1016/S0300-5712(97)00046-8
  20. Shono Y, Terashita M, Pashley EL, Brewer PD, Pashley DH. Effects of cross-sectional area on resin-enamel tensile bond strength. Dent Mater 1997; 13: 290-296 https://doi.org/10.1016/S0109-5641(97)80098-X
  21. de Munck J, van Meerbeek B, Inoue S, Vargas M, Yoshida Y, Armstrong S, Lambrechts P, Vanherle G. Micro-tensile bond strengths of one- and two-step self-etch adhesives to bur-cut enamel and dentin. Am J Dent 2002; 15: in press
  22. Wahle JJ, Wendt SL Jr. Dentinal surface roughness: a comparison of tooth preparation techniques. J Prosthet Dent 1993; 69: 160-164 https://doi.org/10.1016/0022-3913(93)90135-B
  23. van Meerbeek B, Perdigão J, Lambrechts P, Vanherle G. The clinical performance of adhesives. J Dent 1998; 26: 1-20 https://doi.org/10.1016/S0300-5712(96)00070-X
  24. Kinney JH, Haupt DL, Balooch M, White JM, Bell WL, Marshall SJ, Marshall GW. The threshold effects of Nd and Ho:YAG laser-induced surface modification on demineralisation of dentin surfaces. J Dent Res 1996; 75: 1388-1395 https://doi.org/10.1177/00220345960750061001
  25. Yamamoto H, Sato K. Prevention of dental caries by Nd:YAG laser irradiation. J Dent Res 1980; 59:2171-2177
  26. Kameyama A, Oda Y, Hirai Y, Kawada E, Takizawa M, Resin bonding to Er:YAG laser-irradiated dentin: combined effects of pre-treatments with citric acid and glutaraldehyde. Eur J Oral Sci 2001; 109: 354-360 https://doi.org/10.1034/j.1600-0722.2001.00075.x
  27. Goncalves M, Corona SAM, Borsatto MC, Silva PCG, Pecora JD. Tensile bond strength of dentin-resinous system interfaces conditioned with Er:YAG laser irradiation. J Clin Laser Surg Med 2002; 20: 89-93 https://doi.org/10.1089/104454702753768070
  28. Souza AE, Corona SAM, Palma-Dibb RG, Borsatto MC, Pécora JD. Influence of Er:YAG laser on tensile bond strength of a self-etching system and a flowable resin in different dentin depths. J Dent 2004; 32: 269-275 https://doi.org/10.1016/j.jdent.2003.12.003
  29. Ramos RP, Chinelatti MA, Chimello DT, Borsatto MC, Pecora JD, Palma-Dibb RG. Bonding of self-etching and total-etch systems to Er:YAG laser-irradiated dentin. Tensile bond strength and scanning electron microscopy. Braz Dent J 2004; 15: SI9-SI20 https://doi.org/10.1590/S0103-64402004000100002
  30. Nakabayashi N, Kojima K, Masuhara E. The promotion of adhesion by the infiltration of monomers into tooth substrates. J Biomed Mater Res 1982; 16: 265-273 https://doi.org/10.1002/jbm.820160307
  31. 김근아, 안용우, 고명연, 박준상. Er:YAG 레이저를 이용한 법랑질과 상아질의 절삭율 연구. 대한구강내과학회지. 2005;30:131-140
  32. Glockner K, Rumpler J, Ebeleseder K, Stadtler P. Intrapulpal temperature during preparation with the Er:YAG laser compared to the conventional bur: An in vitro study. J Clin Laser Med Surg 1998; 16: 153-157
  33. Gouw-Soares S, Pelino JEP, haypek P, Bachmann L, Eduardo CP. Temperature rise in cavities prepared in vitro by Er:YAG Laser. J Oral Laser Appl 2001; 1:119-123
  34. Mehl A, Folwaczny M, Haffner C, Hickel R. Bactericidal effects of 2.94 microns Er:YAG-laser irradiation in dental root canals. J Endod 1999; 25:490-493 https://doi.org/10.1016/S0099-2399(99)80288-X
  35. Schoop U, Moritz A, Kluger W, Patruta S, Goharkhay K, Sperr W, Wernisch J, Gattringer R, Mrass P, Georgopoulos A. The Er:YAG laser in endodontics: Results of an in vitro study. Lasers Surg Med 2002;30: 360-364 https://doi.org/10.1002/lsm.10054
  36. Perin FM, Franca SC, Silva-Souza YT, Alfredo E, Saquy PC, Estrela C, Souza-Neto MD. Evaluation of Er:YAG laser irradiation versus 1% sodium hypochlorite irrigation for root canal disinfection. Aust Endod J 2004; 30: 20-22 https://doi.org/10.1111/j.1747-4477.2004.tb00162.x