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LED와 플라즈마 광원의 완속기시 광중합 방식이 복합레진의 수축응력에 미치는 영향

Effect of soft-start curing on the contraction stress of composite resin restoration polymerized with LED and plasma curing unit

이상호|이난영|정양석
대한소아치과학회 (The Korean Academy Of Pediatric Dentistry)|2007.11|대한소아치과학회지 (Journal of the Korean academy of pediatric dentistry)|제34권 제4호|pp. 623-631

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키워드

중합수축완속기시플라즈마 광원Soft-start light curingContraction stressPlasma curing unit
주제분류치의학

초록

본 연구는 LED와 플라즈마 광원의 복합레진의 중합시 완속기시 중합방식(soft-start curing)이 수축응력에 미치는 효과를 비교, 평가하고자 하였다. 할로겐 광원으로 40초간 조사하여 복합레진을 중합한 경우와 LED와 플라즈마 광원의 단일광도 중합방식과 완속기시 중합방식으로 할로겐 40초 동안의 광에너지와 총량이 동일하도록 조사시간을 설정하였고 수축응력은 스트레인 게이지(Strain gauge)를 사용하여 측정하였다. 발생되는 수축응력을 비교, 분석 및 평가한 결과 다음과 같은 결론을 얻었다. 1. 모든 군에서 중합 후 200초까지 수축응력이 급격하게 증가하였으나 이후 마지막 측정시간인 800초까지 완만한 증가를 보였다(P<0.05). 2. LED와 플라즈마 광원의 완속기시 중합방법이 단일광도 중합방법에 비해 수축응력이 낮게 나타났다(P<0.05). 3. 할로겐 광원과 LED와 플라즈마 광원의 완속기시 중합의 수축응력 비교에는 유의차가 없었다(P>0.05). 완속기시 중합 방식을 사용할 경우 단일광도 중합 방식보다 수축응력을 감소시킬 수 있어 임상적으로 고광도 광원인 LED와 플라즈마 광원의 경우 완속기시 중합 방식의 사용이 유리하다고 보여진다. 그러나 완속기시 중합시 불충분한 중합을 방지하기 위해서는 완속기시를 보완하는 추가적인 중합시간이 요구될 것으로 사료된다.

Abstract

Effect of Soft-start curing on the contraction stress of composite resin restoration polymerized with LED and plasma curing unit The purpose of this study was to evaluate the influence of soft-start light curing on contraction stress and hardness of composite resin. Composite resin (Filtek Z-250TM, 3M ESPE, USA) was cured using the one-step continuous curing method with three difference light sources ; conventional halogen light (XL3000TM, 3M ESPE, USA) cure for 40 seconds at 400 mw/cm2, LED light (Elipar Freelight 2TM, 3M-ESPE, USA) cure for 20 seconds at 800 mW/cm2 a and plasma arc light (FlipoTM, LOKKI, France) cure for 12 seconds at 1300 mW/cm2. For the soft-start curing method ; LED light (Elipar Freelight 2TM, 3M-ESPE, USA) cure exponential increase with 5 seconds followed by 17 seconds at 800 mW/cm2 and plasma arc light (FlipoTM, LOKKI, France) cure 2 seconds light exposure at 650 mW/cm2 followed by 11 seconds at 1300 mW/cm2 The strain guage method was used for determination of polymerization contraction. Measurements were recorded at each 2 second for the total of 800 seconds including the periods of light application. Obtained data were analyzed statically using Repeated measures ANOVA, One way ANOVA, and Tukey test. The results of present study can be summarized as follows: 1. Composite resin restoration showed transient expansion just after irradiation of curing light. Contraction stress was increased rapidly at the early phase of polymerization and reduced slowly as time elapsed (P<0.05). 2. Contraction stress was not revealed significant difference between Halogen curing light groups and LED and Plasma Light curing with soft-start group (P>0.05). 3. LED and Plasma Light curing with soft-start showed lower contraction stress than the one-step continuous light curing (P<0.05).

참고문헌 (53)

  1. "Setting stress in composite resin in relation to configuration of the restoration. J Dent Res", pp.1636~1639 (1987)
  2. "Polymerization contraction stress of resin composite restoration in a model class I cavity configuration using photoelastic analysis", 12, pp.309~319 (2000)
  3. "Curing contraction of composites and glass ionomer cements. J Prosthet Dent", pp.297~300 (1988)
  4. "A review of polymerization contraction : the influence of stress development versus stress relief", 21, pp.17~24 (1996)
  5. "Cusp movement in premolars resulting from composite polymerization shrinkage. Dent mater", pp.6~12 (1993)
  6. "Finite element analysis of dental polymeric restorations", 15, pp.238~242 (1999)
  7. "Physical properties and gap formation of light-cured composites with and without soft start-polymerization", 25, pp.321~330 (1997)
  8. "The effect of two configuration factors, time, and thermal cycling on resin to dentin bond strengths", 24, pp.1013~1021 (2003)
  9. "Contraction stress of flowable composite materials and their efficacy as stress-relieving layers", 134, pp.721~728 (2003)
  10. "Cavity wall adaptation of resin-based composites lined with flowable composites", 13, pp.192~194 (2000)
  11. "Marginal and internal adaptation of extended classⅠrestorations lined with flowable composites", 31, pp.231~239 (2003)
  12. "Polymerization shrinkage and elasticity of flowable composites and filled adhesives", 14, pp.128~137 (1999)
  13. "Marginal adaptation of a restorative resin polymerized at reduced rate. Scand J Dent Res", pp.440~444 (1991)
  14. "Critical configuration analysis of four methods for measuring polymerization shrinkage strain of composites", 20, pp.388~396 (2004)
  15. "Does an incremental filling technique reduce polymerization shrinkage stresses?", 75, pp.871~878 (1996)
  16. "Finite element stress analysis of three filling techniques for class V light cured composite restorations", 75, pp.1477~1483 (1996)
  17. "Influence of c-factor and layering technique on microtensile bond strength to dentin", 20, pp.579~585 (2004)
  18. "The effects of filling techniques and a low-viscosity composite liner on bond strength to class II cavities", 31, pp.59~66 (2003)
  19. "Curing light intensity and marginal leakage of resin composite restorations", 27, pp.355~362 (1996)
  20. "Guidance of shrinkage vectors vs irradiation at reduced intensity for improving marginal seal of class Ⅴ resin-based composite restorations in vitro", 27, pp.510~515 (2002)
  21. "The effect of different power densities and method of exposure on the marginal adaptation of four lightcured dental restorative materials", 24, pp.3593~3598 (2003)
  22. "Influence of different light sources on microleakage of class Ⅴ composite resin restorations", 31, pp.500~504 (2004)
  23. "완속기시 광조사 방식이 복합레진의 중합 및 수축 응력에 미치는 효과", 32, pp.332~343 (2005)
  24. "Effect of stepped light intensity on polymerization force and conversion in a photoactivated composite", 12, pp.23~32 (2000)
  25. "Influence of light intensity on polymerization shrinkage and integrity of restoration-cavity interface", 103, pp.322~326 (1995)
  26. "Effect of stepped vs continuous light curing exposure on bond strengths to dentin", 13, pp.123~128 (2000)
  27. "The influence of plasma arc vs. halogen standard or soft-start irradiation on polymerization shrinkage kinetics of polymer matrix composites", 31, pp.383~393 (2003)
  28. "Effect of sequential versus continuous irradiation of a light-cured composite on shrinkage, viscosity, adhesion, and degree of polymerization", 11, pp.17~22 (1998)
  29. "Soft-start polymerization: influence on effectiveness of cure and post-gel shrinkage", 26, pp.260~266 (2001)
  30. "Soft-start polymerization and marginal gap formation in vitro", 14, pp.145~147 (2001)
  31. "Post-gel shrinkage with different modes of LED and halogen light curing units", 29, pp.317~324 (2004)
  32. "Lightpolymerization. The principles and practical tips for its correct use. Schweiz Monatsschr Zahnmed", pp.574~588 (1992)
  33. "Effect of variable light intensity on composite shrinkage", 84, pp.499~505 (2000)
  34. "단계별 관중합 방식이 복합레진수복물의 수축응력과 변연 접합도에 미치는 영향", 32, pp.221~232 (2006)
  35. "Effect of sequential versus continuous irradiation of a light-cured resin composite on shrinkage, viscosity, adhesion, and degreee of polymerization", 10, pp.17~22 (1998)
  36. "Reduced light energy density decreases post-gel contraction while main taining degree of conversion in composite. J Dent", pp.695~700 (1988)
  37. "An evaluation of four light-curing units comparing soft and hard curing", 11, pp.125~132 (1999)
  38. "Stress reduction in resin-based composites cured with a twostep light-curing unit", 13(2), pp.69~72 (2000)
  39. "Marginal adaptation of Class V restoration with and without “Soft start-polymerization”", 25, pp.26~32 (2000)
  40. "Effect of light intensity on polymerization of light cured composite resins. Dent Mater J", (moto r)
  41. "Effects of polymerization contraction in composite restorations. J Dent", pp.178~182 (1992)
  42. "Post-irradition polymerization of different anterior and posterior visible light-activated resin composites. Dent Mater", pp.299~304 (1992)
  43. "Stress analysis of a bulk filled Calss V light cured composite restoration. J Dent Res", pp.1470~1477 (1994)
  44. "True linear polymerization shrinkage of unfilled resins and composites determined with an linometer. Dent Mater", pp.11~14 (1993)
  45. "A simple method for the measurement of polymerization shrinkage in dental composites", 15, pp.447~449 (1999)
  46. "Curing light performance and polymerization of composite restorative materials. J Dent"
  47. "Strain gauge method for measuring polymerization contraction of composite restoratives. J Dent", pp.312~316 (1991)
  48. "Finite element stress analysis of three filling techniques for class V light-cured composite restorations", 75, pp.1477~1483 (1996)
  49. "Polymerization contraction stress of resin composite restorations in a model Class I cavity configuration using photoelastic analysis", 12, pp.309~319 (2000)
  50. "Determination of polymerization shrinkage stress by means of a photoelastic investigation", 20, pp.313~321 (2004)
  51. "Stress analysis of a bulk filled Calss V light-cured composite restoration. J Dent Res", pp.1470~1477 (1994)
  52. "A light curing method for improving marginal sealing and cavity wall adaptation of resin composite restorations", 17, pp.359~366 (2001)
  53. "Two step curing : influence on conversion and softening of a dental polymer", 19, pp.466~470 (2003)

관련 논문AI추천

완속기시(Soft-start)광조사 방식이 복합레진의 중합 및수축응력에 미치는 효과오유향, 위유민, 이난영, 이상호, 이창섭대한소아치과학회 · 대한소아치과학회지2005 · 제32권 제2호LED 광중합기의 조사 mode가 복합레진의 미세경도 및수축응력에 미치는 영향박인호, 오유향, 이난영, 이상호, 이창섭대한소아치과학회 · 대한소아치과학회지2005 · 제32권 제2호Double curing unit system을 이용한 복합 레진의 광중합 수축에 관한 연구김종수, 유승훈, 한미란대한소아치과학회 · 대한소아치과학회지2009 · 제36권 제2호스트레인 게이지를 이용한 적층방법에 따른 복합레진의 중합수축에 관한 연구김응학, 김종수, 유승훈대한소아치과학회 · 대한소아치과학회지2008 · 제35권 제1호Plasma arc light curing unit을 이용한 광중합형 수복재의 중합양상김신, 우연선, 정태성대한소아치과학회 · 대한소아치과학회지2002 · 제29권 제2호단계별 광중합 방식이 복합레진 수복물의 수축 응력과변연 접합도에 미치는 영향박종휘, 이난영, 이상호대한소아치과학회 · 대한소아치과학회지2006 · 제33권 제2호

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