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시효된 복합레진 표면에 다양한 표면 처리 후 부착한 교정용 브라켓의 전단응력

Effect of Various Surface Treatment Methods on Shear Bond Strength of Orthodontic Brackets to Aged Composite Resin

  • 박종철 (강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소) ;
  • 박호원 (강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소) ;
  • 이주현 (강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소) ;
  • 서현우 (강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소)
  • Park, Jongcheol (Department of Pediatric Dentistry, Oral Science Research Center, College of Dentistry, Gangneung-Wonju National University) ;
  • Park, Howon (Department of Pediatric Dentistry, Oral Science Research Center, College of Dentistry, Gangneung-Wonju National University) ;
  • Lee, Juhyun (Department of Pediatric Dentistry, Oral Science Research Center, College of Dentistry, Gangneung-Wonju National University) ;
  • Seo, Hyunwoo (Department of Pediatric Dentistry, Oral Science Research Center, College of Dentistry, Gangneung-Wonju National University)
  • 투고 : 2013.12.31
  • 심사 : 2014.03.15
  • 발행 : 2014.05.30

초록

이 연구의 목적은 시효된 복합레진 수복물에 이산화탄소 레이저로 표면처리한 경우와 기존의 여러 가지 표면처리 방법에 따른 교정용 브라켓의 전단응력을 측정하여 비교하기 위함이다. 복합레진을 이용하여 직경 6 mm, 두께 5 mm의 시편을 96개 제작하였다. 제작된 시편을 인공타액에 침적시켜 $37^{\circ}C$의 온도로 2주 동안 시효처리 하였다. 그 후 96개의 시편을 무작위적으로 16개씩 6개의 군으로 나누었다. 1군은 표면처리를 하지 않았고, 2군은 37% 인산으로, 3군은 4% 불산으로, 4군은 입자 분사 연마로, 5군은 고속 다이아몬드 버로, 6군은 이산화탄소 레이저로 표면처리하였다. 만능 시험기를 이용하여 전단응력을 측정하였으며, 주사전자 현미경을 이용하여 표면처리 양상을 관찰하였다. 버를 사용한 5군이 가장 큰 전단응력 값을 보였으며, 이산화탄소 레이저를 사용한 6군이 그다음으로 큰 값을 보였다. 버를 사용한 5군과 이산화탄소 레이저를 사용한 6군은 나머지 표면처리 방법들보다 통계적으로 유의하게 높은 전단응력 값을 보여주었다(p < 0.05). 또한, 주사전자 현미경 사진을 통해 분석한 결과 레이저를 이용한 6군에서 표면이 가장 거칠었으며 불규칙한 요철구조가 형성되었다. 이산화탄소 레이저를 이용한 표면처리 방법은 브라켓 접착시 적절한 결합강도를 제공하므로, 시효된 레진 수복물에 교정용 브라켓을 접착하기 위한 유용한 방법이 될 수 있다.

The purpose of this study was to investigate the effect of various surface treatment methods on the shear bond strength of orthodontic brackets in vitro. Ninety six specimens, 6 mm in diameter and 5 mm in height, were made with composite resin ($Filtek^{TM}$ Z350 XT, 3M ESPE, USA) and treated with an aging procedure. After aging, the specimens were randomly separated in six groups: (1) control with no surface treatment, (2) 37% phosphoric acid gel, (3) 4% hydrofluoric acid gel, (4) sodium bicarbonate particle abrasion, (5) diamond bur, and (6) 1 W carbon dioxide laser for 5s. The metal brackets were bonded to composite surfaces by means of an orthodontic adhesive (Transbond XT, 3M Unitek, USA). Shear bond strength values were evaluated with a universal testing machine (R&B Inc., Korea). Analysis of variance showed a significant difference between the groups. Group 5 had the highest mean shear bond strength (11.9 MPa), followed by group 6 (11.1 MPa). Among the experimental groups, group 2 resulted in the weakest mean shear bond strength (5.22 MPa). The results of this study suggest that the repair shear bond strength of the aged composite resin was acceptable by surface treatment with a carbon dioxide laser.

키워드

참고문헌

  1. Emre O, Meric K, Gunduz B, et al. : Two-year follow- up of fractured anterior teeth restored with direct composite resin : report of three cases. Dent Traumatol, 24:589-592, 2008. https://doi.org/10.1111/j.1600-9657.2008.00580.x
  2. Brunthaler A, Lucas T, Sperr W, et al. : Longevity of direct composite in posterior teeth. Clin Oral Investig, 7:63-70, 2003. https://doi.org/10.1007/s00784-003-0206-7
  3. Maijer R, Smith DC : Variables influencing the bond strength of metal orthodontic bracket bases. Am J Orthod, 79:20-34, 1981. https://doi.org/10.1016/0002-9416(81)90098-1
  4. Van Kerckhoven H, Lambrechts P : Unreacted methacrylate groups on the surfaces of composite resins. J Dent Res, 61:791-795, 1982. https://doi.org/10.1177/00220345820610062801
  5. Kao EC, Eliades T, Rezvan E, et al. : Torsional bond strength and failure pattern of ceramic bracket bonded to composite resin laminate veneers. Eur J Orthod, 17:533-540, 1995. https://doi.org/10.1093/ejo/17.6.533
  6. Chunhacheevachaloke E, Tyas MJ: Shear bond strength of ceramic brakcets to resin-composite surface. Aust Orthod J, 15:10-15, 1997.
  7. Lai PY, Woods MG, Tyas MJ : Bond strength of orthodontic brackets to restorative resin composite surface. Aust Orthod J, 15:235-245, 1999.
  8. Viwattanatipa N, Jermwiwatkul W, Nanthavanich N, et al. : The effect of different surface preparation techniques on the survival probabilities of orthodontic brackets bonded to nanofill composite resin. J Orthod, 37:162-173, 2010. https://doi.org/10.1179/14653121043065
  9. Viwattanatipa N, Prasertsangwal J, Juntavee N : Weibull analysis of shear/peer bond strength of orthodontic buccal tubes bonded to five resin composites. Orthod Waves, 67:120-127, 2008. https://doi.org/10.1016/j.odw.2008.02.002
  10. Bishara SE, Ajlouni R, Oonsombat C : Bonding orthodontic brackets to composite using different surface preparations and adhesive/primers: a comparative study. World J Orthod, 4:343-347, 2003.
  11. Schwartz RE, Tyas MJ, West VC : The bonding of orthodontic brackets to composite resin surfaces. Aust Orthod J, 35:472-473, 1990.
  12. Eslamian L, Borzabadi-Farahani A, Ghasemi A, et al.: The effects of various surface treatments on the shear bond strengths of stainless steel brackets to artificially aged composite restorations. Aust Orthod J, 27:28-32, 2011.
  13. Kinersly T, Jarabak JP, Dement J, et al. : Laser effects on tissue and materials related to dentistry. J Dent Res, 47:311-317, 1972.
  14. Lukac M, Hocevar F, Nemes K, et al. : Effects of pulsed $CO_2$ and Er:YAG lasers on enamel and dentin. Lasers Surg Med, 1880:169-175, 1993.
  15. Ertl T, Muller G : Hard tissue ablation with pulsed $CO_2$ lasers. Lasers Surg Med, 1880:176-181, 1993.
  16. Featherstone JDB, Fried D, Seka W : Effect of pulse duration and repetation rate on $CO_2$ laser effects. J Dent Res, 51:455-460, 1972. https://doi.org/10.1177/00220345720510023501
  17. Walsh LJ : Clinical evaluation of dental hard tissue applications of carbon dioxide lasers. J Clin Laser Med Surg, 12:11-15, 1994.
  18. Walsh LJ, Abood D, Brockhurst PJ : Bonding of resin composite to carbon dioxide laser-modified human enamel. Dent Mater, 10:162-166, 1994. https://doi.org/10.1016/0109-5641(94)90026-4
  19. Walsh LJ : Split-mouth study of sealant retention with carbon dioxide laser versus acid etch conditioning. Aust Dent J, 41:124-127, 1996. https://doi.org/10.1111/j.1834-7819.1996.tb05925.x
  20. Cooper LF, Myers ML, Mowery AS, et al. : Shear strength of composite bonded to laser-pretreated detin. J Prosthet Dent, 60:45-49, 1988. https://doi.org/10.1016/0022-3913(88)90348-4
  21. Fraunhofer JA, Allen DJ, Orbell GM : Lawer etching of direct bonding. Angle Orthod, 63:73-76, 1992.
  22. Roberts-Harry D : Laser ethcing of teeth for orthodontic bracket placement: a preliminary clinical study. Lasers Surg Med, 12:467-470, 1992. https://doi.org/10.1002/lsm.1900120502
  23. Caneppele TM, Borges AB, Torres CR, et al. : Influence of Nd:YAG or Er:YAG laser surface treatment on microtensile bond strength of indirect resin composites to resin cement. Eur J Prosthodont Restor Dent, 20:135-140, 2012.
  24. Mansore M, Esmaeil Y, Nasim C, et al. : Effect of laser treatment of surface morphology of indirect compsote resin: scanning electron microscope evaluation. Lasers Med Sci, 4:92-95, 2013.
  25. Parnian AO, Narmin M, Maryam S, et al. : Effect of surface treatment with Er;Cr:YSSG, Nd:YAG, and $CO_2$ lasers on repair shear bond strength of a silorane- based composite resin. J Dent Res Dent Clin Dent Prospects, 7:61-66, 2013.
  26. Artun J, Bergland S : Clinical trials with crystal growth conditioning as an alternative to acid-etch enamel pretreatment, Am J Orthod Dentofacial Orthop, 85:333-340, 1984. https://doi.org/10.1016/0002-9416(84)90190-8
  27. Brosh T, Pilo R, Bichacho N, et al. : Effect of combination of surface treatment and bonding agents on the bond strength of repaired composites. J Prosthet Dent, 77:122-126, 1997. https://doi.org/10.1016/S0022-3913(97)70224-5
  28. Lee HS, Kim JS, Yoo SH : A comparative study of the shear bond strength and adhesive failure pattern of metal brackets bonded on natural teeth and porcelain teeth, J Korean Acad Pediatr Dent, 35: 195-204, 2008.
  29. Li J : Effects of surface properties on bond strength between layers of newly cured dental composites. J Oral Rehabil, 24:358-360, 1997. https://doi.org/10.1046/j.1365-2842.1997.00508.x
  30. Ferracane JL, Marker VA : Solvent degradation and reduced fracture toughness in aged composites. J Dent Res, 71:13-19, 1992. https://doi.org/10.1177/00220345920710010101
  31. Ozcan M, Barbosa SH, Melo RM, et al. : Effect of surface conditioning methods on the microtensile bond stength of resin composite to composite after aging conditions. Dent Mater, 23:1276-1282, 2007. https://doi.org/10.1016/j.dental.2006.11.007
  32. Hajrassie MKA, Khier SE : In-vivo and in-vitro comparison of bond strengths of orthodontic brackets bonded to enamel and debonded at various times. Am J Orthod Dentofacial Orthop, 131:384-390, 2007. https://doi.org/10.1016/j.ajodo.2005.06.025
  33. Eslamian L, Mousavi N, Ghasemi A, et al. : The effects of various surface treatments on the shear bond strengths of stainless steel brackets to artificially-aged composite restorations. Aust Orthod J, 27:28-32, 2010.
  34. Brantley WA : Orthodontic materials: scientific and clinical aspects. Thieme, 105-122, 2001.
  35. Swift EJ, Le Valley BD, Boyer DB : Evaluation of new methods for composite repair. Dent Mater, 8:362-365, 1992. https://doi.org/10.1016/0109-5641(92)90020-D
  36. Mehmet B, Cemal Y, Metin N, et al. : Shear bond strength of orthodontic brackets to aged resin composite surfaces: effect of surface conditioning, Eur J Orthod, 33:174-179, 2011. https://doi.org/10.1093/ejo/cjq048
  37. Fawzy AS, El-Askary FS, Amer MA : Effect of surface treatments on the tensile bond strength of repaired water-aged anterior resotrative micro-fine hybrid resin composite. J Dent, 36:969-976, 2008. https://doi.org/10.1016/j.jdent.2008.07.014
  38. Featherstone JDB, Nelson DGA : Laser effects on dental hard tissues. Adv Dent Res, 1:21-26, 1987. https://doi.org/10.1177/08959374870010010701
  39. Gagri U, Tolga K, Murat K : The effect of laser treatment on bonding between zirconia ceramic surface and resin cement. Acta Odontologica Scandivanica, 68:354-359, 2010. https://doi.org/10.3109/00016357.2010.514720
  40. Akova T, Yoldas O, Uysal H, et al. : Porcelain surface treatment by laser for bracket-porcelain bonding. Am J Orthod Dentofacial Orthop, 107:159-164, 2005.
  41. Zach L, Cohen G : Pulp response to externally applied heat. Oral Surg Oral Med Oral Pathol, 19:515-530, 1965. https://doi.org/10.1016/0030-4220(65)90015-0
  42. Shin JS, Kim JS : A study of shear bond strength of orthodontic bracket under blood-contaminated conditions, J Korean Acad Pediatr Dent, 32:191-199, 2005.
  43. Boyer DB, Chan KC, Reinhardt JW : Build-up and repair of light-cured composites: bond strength. J Dent Res, 63:1241-1244, 1984. https://doi.org/10.1177/00220345840630101501
  44. Chiba K, Hosoda H, Fusayama T : The addition of an adhesive composite resin to the same meterial: bond strength and clinical techniques. J Prosthet Dent, 61:669-675, 1989. https://doi.org/10.1016/S0022-3913(89)80039-3
  45. Kao EC, Pryor HG, Johnston WM : Strength of composites repaired by laminating with dissimilar composites. J Prosthet Dent, 60:328-333, 1988. https://doi.org/10.1016/0022-3913(88)90278-8