Journal of Oral Medicine and Pain

Korean Academy of Orofacial Pain and Oral Medicine (대한안면통증구강내과학회)
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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
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Abstract

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.

재래의 고속핸드피스 bur를 이용한 와동 형성시 레진 접착력과 레이저를 사용한 와동형성시 접착력을 비교하여 레이저의 임상적용 여부를 평가하는 것이 본 연구의 목적이다. 총 96개 치아 표본의 법랑질 협면과 상아질 mid-coronal 부에 Er:YAG laser를 사용하여 조사하였다. 사전에 산부식을 시킨 군(48개)과 부식시키지 않은 군(48개)으로 구별하고 각각 flowable 접착시스템(Metafil Flo)과 자가중합 시스템(Clearfil FII New Bond)를 레진에 접착시켰다. 37$^{\circ}C$ 증류수에서 24시간동안 보관한 후 미세 결합강도(micro-tensile shear strength)를 만능시험기(universal testing machine)로 측정하여 다음과 같은 결과를 얻었다. 1. 법랑질과 상아질 모두 산부식 전처리를 한 경우에 산처리를 하지 않은 경우보다 결합강도가 높았고, 레이저 처리 표본에서도 마찬가지여서 레이저만으로 처리하는 것보다는 산부식 처리를 하는 것이 강도면에서 유리한 것으로 나타났다. 2. 법랑질의 경우 레이저 처치한 경우가 bur로 삭제한 경우보다 두 레진군 모두에서 결합강도가 낮았으나(P<0.05), 상아질의 경우에는 flowable 레진군에서는 두 군 간의 차이가 없었다. 3. 레이저 처치군내에서 상아질의 경우, 광중합 flowable 레진의 결합강도가 자가중합형 레진의 강도보다 높았으나, 법랑질에서는 차이가 없었다. 따라서 레이저를 활용하여 와동을 형성하는 것은 상아질까지 확대된 와동의 경우에 법랑질에 국한된 경우보다 결합강도면에서 유리하며, flowable레진을 사용하는 것이 자가중합형 레진보다 유리한 것으로 판단되었다.

Keywords

References

  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