간접 레진수복시 상아질 접착제의 중합 여부에 따른 결합 효능
Bonding efficacy of cured or uncured dentin adhesives in indirect resin
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연구목적: 본 연구는 간접 레진수복시 상아질 접착제의 중합 여부가 레진인레이와 상아질간의 미세인장결합강도와 결합계면의 형태에 미치는 영향을 공초점 현미경 관찰을 통하여 평가하고자 하였다. 연구 재료 및 방법: 24개의 발거된 대구치를 절단하여 교합면 상아질을 노출시켰다. 수복 방법에 따라 크게 간접 레진수복과직접 레진수복의 두 군으로 나누었다. 간접 레진수복군은 임시 수복하여 1주일 후, 상아질 접착 과정에 따라 4군(OB-C와OB-NC군, OS-C와 OS-NC군)으로 나누었다. 간접 레진수복군은 산부식 처리된 상아질면에 OptiBond FL (Kerr) 또는One-Step (Bisco) 상아질 접착제를 중합 여부에 따라 나누어 적용하였다. 처리된 상아질면에 제작된 3 mm 높이의 레진 인레이(Tescera, Bisco)를 Variolink II (Ivoclar Vivadent)를 사용하여 제조사의 지시에 따라 합착하였다. 직접 레진수복군은산부식 처리된 상아질면에 상아질 접착 후, 복합레진 (EsteliteΣ, Tokuyama)으로 즉시 수복하였다(OB-D군, OS-D군). 수복을 마친 모든 치아는 24시간 후, 미세인장 결합 강도 평가와 공초점 레이저 주사 현미경 관찰(CLSM)을 시행하였다. 결과: 간접 레진수복군은 직접 레진수복군에 비하여 낮은 미세인장결합강도를 나타내었으며, 상아질 접착제를 광중합한 군(OB-C군, OS-C군)이 광중합을 시행하지 않은 군(OB-NC군, OS-NC군)에 비하여 높은 미세인장결합강도를 나타내었다. 접착 계면에 대한 CLSM 관찰에서 상아질 접착제를 광중합한 군에서 더 분명하고 균일한 혼성층이 관찰되었다. 상아질 접착제를 광중합하지 않은 군에서는 혼성층이 불분명하거나 거의 관찰되지 않았다. 결론: 간접 레진수복물의 합착시 레진시멘트의 적용 전에 상아질 접착제의 광중합은 분명하고 균일한 혼성층의 형성하며, 이는 결합강도의 향상에 기여한다.
Abstract
Objectives: This study examined the effect of the uncured dentin adhesives on the bond interface between the resin inlay and dentin. Materials and Methods: Dentin surface was exposed in 24 extracted human molars and the teeth were assigned to indirect and direct resin restoration group. For indirect resin groups, exposed dentin surfaces were temporized with provisional resin. The provisional restoration was removed after 1 wk and the teeth were divided further into 4 groups which used dentin adhesives (OptiBond FL, Kerr; One-Step, Bisco)with or without light-curing, respectively (Group OB-C, OB-NC, OS-C and OS-NC). Pre-fabricated resin blocks were cemented on the entire surfaces with resin cement. For the direct resin restoration groups, the dentin surfaces were treated with dentin adhesives (Group OB-D and OS-D), followed by restoring composite resin. After 24 hr, the teeth were assigned to microtensile bond strength (μTBS) and confocal laser scanning microscopy (CLSM), respectively. Results: The indirect resin restoration groups showed a lower μTBS than the direct resin restoration groups. The μTBS values of the light cured dentin adhesive groups were higher than those of the uncured dentin adhesive groups (p < 0.05). CLSM analysis of the light cured dentin adhesive groups revealed definite and homogenous hybrid layers. However, the uncured dentin adhesive groups showed uncertain or even no hybrid layer. Conclusions: Light-curing of the dentin adhesive prior to the application of the cementing material in luting a resin inlay to dentin resulted in definite, homogenous hybrid layer formation, which may improve the bond strength. [J Kor Acad Cons Dent 2011;36(6):490-497.]
참고문헌 (32)
- Jayasooriya PR, "The effect of a “resin coating”on the interfacial adaptation of composite inlays", Oper Dent, 28, pp.28~35 (2003)
- Tyas MJ, "Minimal intervention dentistry-a review. FDI commission project 1-97", Int Dent J, 50, pp.1~12 (2000)
- Silikas N, "Light intensity effects on resin-composite degree of conversion and shrinkage strain", Dent Mater, 16, pp.292~296 (2000)
- Jayasooriya PR, "Efficacy of a resin coating on bond strengths of resin cement to dentin", J Esthet Restor Dent, 15, pp.105~113 (2003)
- Udo T, "Enhancement of adhesion between resin coating materials and resin cements", Dent Mater J, 26, pp.519~525 (2007)
- Hikita K, "Bonding effectiveness of adhesive luting agents to enamel and dentin", Dent Mater, 23, pp.71~80 (2007)
- Carvalho RM, "Adhesive permeability affects coupling of resin cements that utilise self-etching primers to dentine", J Dent, 32, pp.55~65 (2004)
- Magne P, "Immediate dentin sealing improves bond strength of indirect restorations", J Prosthet Dent, 94, pp.511~519 (2005)
- Mota CS, "Tensile bond strength of four resin luting agents bonded to bovine enamel and dentin", J Prosthet Dent, 89, pp.558~564 (2003)
- Ozturk N, "Dentin bond strengths of two ceramic inlay systems after cementation with three different techniques and one bonding system", J Prosthet Dent, 89, pp.275~281 (2003)
- Ferrari M, "Efficacy of different adhesive techniques on bonding to root canal walls: an SEM investigation", Dent Mater, 17, pp.422~429 (2001)
- Lee JI, "The Effect of Three Variables on Shear Bond Strength When Luting A Resin Inlay to Dentin", Operative Dentistry, 34(3), pp.288~292 (2009)
- Magne P, "Immediate dentin sealing supports delayed restoration placement", J Prosthet Dent, 98, pp.166~174 (2007)
- Pashley EL, "Dentin permeability: sealing the dentin in crown preparations", Oper Dent, 17, pp.13~20 (1992)
- Dong CC, "Effect of mode of polymerization of bonding agent on shear bond strength of autocured resin composite luting cements", J Can Dent Assoc, 69, pp.229~234 (2003)
- Dietschi D, "In vitro evaluation of marginal and internal adaptation of class II resin composite restorations after thermal and occlusal stressing", Eur J Oral Sci, 106, pp.1033~1042 (1998)
- 이흥배, "즉시 상아질 봉쇄와 지연 상아질 봉쇄에 따른 상아질 접착의 미세인장 결합강도 비교", 대한치과보철학회지, 46(4), pp.372~380 (2008), 대한치과보철학회
- D’Alpino PH, "Efficacy of composite surface sealers in sealing cavosurface marginal gaps", J Dent, 34, pp.252~259 (2006)
- D'Alpino PH, "Use of fluorescent compounds in assessing bonded resin-based restorations: a literature review", J Dent, 34, pp.623~634 (2006)
- 김동준, "상아세관의 주행방향에 따른 상아질 접착제의 침투양상에 대한 공초점레이저주사현미경 연구", Restorative Dentistry and Endodontics, 28(5), pp.392~401 (2003), 대한치과보존학회
- Pioch T, "Applications of confocal laser scanning microscopy to dental bonding", Adv Dent Res, 11, pp.453~461 (1997)
- Kanno T, "Microtensile bond strength of dual-cure resin cement to root canal dentin with different curing strategies", Dent Mater J, 23, pp.550~556 (2004)
- Magne P, "Immediate dentin sealing: a fundamental procedure for indirect bonded restorations", J Esthet Restor Dent, 17, pp.144~154 (2005)
- Labella R, "Polymerization shrinkage and elasticity of flowable composites and filled adhesives", Dent Mater, 15, pp.128~137 (1999)
- Mak YF, "Micro-tensile bond testing of resin cements to dentin and an indirect resin composite", Dent Mater, 18, pp.609~621 (2002)
- Monticelli F, "Cement system and surface treatment selection for fiber post luting", Med Oral Patol Oral Cir Bucal, 13, pp.214~221 (2008)
- Goracci C, "Evaluation of the adhesion of fiber posts to intraradicular dentin", Oper Dent, 30, pp.627~635 (2005)
- Valandro LF, "The effect of adhesive systems on the pullout strength of a fiberglass-reinforced composite post system in bovine teeth", J Adhes Dent, 7, pp.331~336 (2005)
- De Munck J, "A critical review of the durability of adhesion to tooth tissue: methods and results", J Dent Res, 84, pp.118~132 (2005)
- Peumans M, "Clinical effectiveness of contemporary adhesives: a systematic review of current clinical trials", Dent Mater, 21, pp.864~881 (2005)
- Tay FR, "Dental adhesives of the future", J Adhes Dent, 4, pp.91~103 (2002)
- Tay FR, "Single-step adhesives are permeable membranes", J Dent, 30, pp.371~382 (2002)