대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)

  • 제53권4호
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  • Pages.325-329
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  • 2015
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  • 0301-2875(pISSN)
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  • 2005-3789(eISSN)
대한치과보철학회 (The Korean Academy of Prosthodonitics)
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레진 시멘트의 혼합 후 시간에 따른 피막도의 변화

Effect of working time on the film thickness of dental resin cements

  • 이유승 (서울대학교 치의학대학원) ;
  • 김성훈 (서울대학교 치의학대학원 치과보철학교실) ;
  • 이재봉 (서울대학교 치의학대학원 치과보철학교실) ;
  • 한중석 (서울대학교 치의학대학원 치과보철학교실) ;
  • 여인성 (서울대학교 치의학대학원 치과보철학교실) ;
  • 하승룡 (아주대학교 의과대학 치의학과) ;
  • 김희경 (중앙보훈병원 치과병원 치과보철과)
  • Yi, Yu-Seung (School of Dentistry, Seoul National University) ;
  • Kim, Sung-Hun (Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University) ;
  • Lee, Jai-Bong (Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University) ;
  • Han, Jung-Suk (Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University) ;
  • Yeo, In-Sung (Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University) ;
  • Ha, Seung-Ryong (Department of Dentistry, School of Medicine, Ajou University) ;
  • Kim, Hee-Kyung (Department of Prosthodontics, Veterans Health Service Medical Center)
  • 투고 : 2015.07.22
  • 심사 : 2015.09.03
  • 발행 : 2015.10.30
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초록

목적: 본 연구에서는 임상에서 사용되는 몇 가지 레진 시멘트의 혼합 후 부하를 가하기까지의 시간에 따른 피막도의 변화를 비교하고, 혼합 후 작업 시간과 레진 시멘트의 피막도의 관계를 알아 보고자 하였다. 재료 및 방법: 네 종류의 레진 시멘트(Panavia F2.0, Clearfil SA Luting, Zirconite, RelyX U200)를 제조사의 지시대로 혼합한 후 두 장의 투명한 Mylar matrix strip 사이에 소량의 시멘트를 넣고 다양한 시간 간격(20, 40, 60, 80, 100, 120, 140, 160, 180, 200초) 후에 50 N의 부하를 가하고 광중합을 시행하였다. 각 시점에서의 피막도는 $1{\mu}m$ 단위까지 측정 가능한 디지털 피막도 측정기를 이용하여 각 시편 당 세 번씩 측정하여 평균값을 구하였으며, 선형회귀분석을 통하여 시간에 따른 측정값의 변화를 알아 보았다. 또한 Wilcoxon 검정을 사용하여 각 측정값과 제조사에서 제시한 작업 시간을 유의수준 0.05로 비교 분석하였다 ($\alpha$=.05). 결과: 본 연구에 사용된 모든 레진 시멘트에서 혼합 후 부하를 가하기까지 걸린 시간과 피막도는 선형회귀분석 결과 양의 상관관계를 갖는 일차함수적 패턴을 보였다. ISO기준에 따라 피막도가 $50{\mu}m$가 되는 시점까지의 시간은 각 레진 시멘트의 제조사가 제시한 작업 시간과 차이가 있었으나 통계적인 유의성은 없었다. 결론: 레진 시멘트의 피막도는 작업 시간의 증가에 따라 증가한다. 임상에서의 레진 시멘트의 작업 시간은 제조사에서 제시한 작업 시간과 차이가 있을 수 있다.

Purpose: The aim of this study was to compare the film thicknesses of several resin cements as a function of time after mixing and to examine the effect of working time on the film thicknesses. Materials and methods: The film thickness (${\mu}m$) of 4 resin cements (n=10), 1 composite resin (Panavia F 2.0), 3 self-adhesive resin (Clearfil SA luting, Zirconite, RelyX U200) cements was measured at 20-second intervals after mixing of the cements up to 200 seconds under a load of 50 N. Linear regression was fitted to verify the effect of working time on the film thickness of each cement. Data were compared to the working time recommended by manufacturers using Wilcoxon test ($\alpha$=.05). Results: All of the materials showed a positive linear correlation between the film thickness and working time. There was no statistically significant difference between the working time based on our results and the values recommended by the manufacturers even though there was a discrepancy between those two values. Conclusion: The film thickness of resin cements could increase with the increase of working time. Working time to meet the ISO standard of $50-{\mu}m$ maximum film thickness could be different from the manufacturer's recommended value.

키워드

참고문헌

  1. Shillingburg HT, Sather DA Jr, Wilson EL Jr, Cain JR, Mitchell DL, Blanco LJ, Kessler JC. Fundamentals of fixed prosthodontics. 4th ed. Quintessense Pub., Co.; 2012. p. 71-96.
  2. Schwartz IS. A review of methods and techniques to improve the fit of cast restoration. J Prosthet Dent 1986;56:279-83. https://doi.org/10.1016/0022-3913(86)90003-X
  3. Pilo R, Cardash HS, Baharav H, Helft M. Incomplete seating of cemented crowns: a literature review. J Prosthet Dent 1988;59: 429-33. https://doi.org/10.1016/0022-3913(88)90037-6
  4. White SN, Yu Z. Film thickness of new adhesive luting agents. J Prosthet Dent 1992;67:782-5. https://doi.org/10.1016/0022-3913(92)90582-U
  5. Rosenstiel SF, Land MF, Crispin BJ. Dental luting agents: A review of the current literature. J Prosthet Dent 1998;80:280-301. https://doi.org/10.1016/S0022-3913(98)70128-3
  6. White SN, Yu Z, Kipnis V. Effect of seating force on film thickness of new adhesive luting agents. J Prosthet Dent 1992; 68:476-81. https://doi.org/10.1016/0022-3913(92)90414-6
  7. Oilo G, Evje DM. Film thickness of dental luting cements. Dent Mater 1986;2:85-9. https://doi.org/10.1016/S0109-5641(86)80058-6
  8. Manhart J, Scheibenbogen-Fuchsbrunner A, Chen HY, Hickel R. A 2-year clinical study of composite and ceramic inlays. Clin Oral Investig 2000;4:192-8. https://doi.org/10.1007/s007840000086
  9. Peumans M, Van Meerbeek B, Lambrechts P, Vanherle G. Porcelain veneers: a review of the literature. J Dent 2000;28:163-77. https://doi.org/10.1016/S0300-5712(99)00066-4
  10. Mitchell CA, Abbariki M, Orr JF. The influence of luting cement on the probabilities of survival and modes of failure of cast fullcoverage crowns. Dent Mater 2000;16:198-206. https://doi.org/10.1016/S0109-5641(00)00009-9
  11. Knox J, Kralj B, Hubsch PF, Middleton J, Jones ML. An evaluation of the influence of orthodontic adhesive on the stresses generated in a bonded bracket finite element model. Am J Orthod Dentofacial Orthop 2001;119:43-53. https://doi.org/10.1067/mod.2001.110987
  12. el-Mowafy O, Rubo MH. Retention of a posterior resin-bonded fixed partial denture with a modified design: an in vitro study. Int J Prosthodont 2000;13:425-31.
  13. Kious AR, Roberts HW, Brackett WW. Film thicknesses of recently introduced luting cements. J Prosthet Dent 2009;101: 189-92. https://doi.org/10.1016/S0022-3913(09)60026-3
  14. Windeler AS. The use of film thickness to measure working time of zinc phosphate cements. J Dent Res 1978;57:697-701. https://doi.org/10.1177/00220345780570050601
  15. ISO 4049. Dentistry - Polymer-based filling, restorative and luting materials. International Organization for Standardization, Geneva, Switzerland, 2000.
  16. Zortuk M, Bolpaca P, Kilic K, Ozdemir E, Aguloglu S. Effects of Finger Pressure Applied By Dentists during Cementation of All-Ceramic Crowns. Eur J Dent 2010;4:383-8.
  17. Smith DC. Dental cements. Dent Clin North Am 1971;15:3-31.