치위생과학회지 (Journal of dental hygiene science)

  • 제14권3호
  • /
  • Pages.405-410
  • /
  • 2014
  • /
  • 1598-4478(pISSN)
  • /
  • 2233-7679(eISSN)
한국치위생과학회 (The Korean Society of Dental Hygiene Science)
권호 표지
DOI QR코드

DOI QR Code

도재 소성과정이 Ni-Cr 금속도재관의 변연 및 내면 적합도에 미치는 영향

Effect of Porcelain Firing Process on the Marginal and Internal Fit of Ni-Cr Alloy Metal-Ceramic Crown

  • 김기백 (고려대학교 보건과학대학 보건과학연구소) ;
  • 김석환 (김천대학교 의료경영학과) ;
  • 김재홍 (고려대학교 보건과학대학 보건과학연구소)
  • Kim, Ki-Baek (Institute for Health Science, College of Health Science, Korea University) ;
  • Kim, Seok-Hwan (Department of Medical Management, Gimcheon University) ;
  • Kim, Jae-Hong (Institute for Health Science, College of Health Science, Korea University)
  • 투고 : 2014.07.30
  • 심사 : 2014.08.30
  • 발행 : 2014.09.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 연구는 심미보철 치료에서 사용되는 금속도재관 제작시 Ni-Cr alloy 하부 구조물에 상부도재를 축성하고 소성하는 과정이 완성된 보철물의 적합도에 미치는 영향을 조사함으로써 임상적 허용을 재확인하기 위함이다. 1차로 lost wax technique으로 제작된 NCC (Ni-Cr alloy core)의 변연 및 내면 적합도를 측정하였고, 2차로 NCC에 상부도재 축성, 소성하여 금속도재관을 최종 완성하여 2차로 측정한 뒤비교한 결과는 다음과 같다. 금속도재관 제작 시 Ni-Cr alloy로 제작된 코어 위에 상부도재를 축성하고 소성하는 과정이 금속 도재관의 적합도를 악화시키는 결과를 보였으며, 부위 별 구분 없이 두 그룹에서 측정된 모든 값의 평균을 비교한 결과 NCC 그룹에서는 $67.1{\pm}23.3{\mu}m$, NMC 그룹에서는 $74.4{\pm}21.9{\mu}m$로 나타났으며 통계적으로 유의한 차이를 보였다(p<0.05). 이와 같은 결과를 토대로 Ni-Cr alloy로 금속도재관 제작 시 상부도재를 축성하는 과정에서 적합도를 악화시킨다는 결론을 얻었으나, 본 실험에서 측정된 결과 값은 임상적 허용 수치($120{\mu}m$)를 넘지 않아 적합도의 기준으로 평가하였을 때 임상적으로 허용 가능할 것으로 생각된다.

The purpose of this study in vitro investigation was to compare the marginal and internal fit of Ni-Cr alloy metal ceramic crown before and after porcelain veneering. Furthermore, this study evaluated whether the influence of the porcelain firing on the precision of fit of dental prostheses. The maxillary right incisor was selected as an abutment for experiments. Ten working models were prepared. Ni-Cr alloy cores appropriate for each abutment were prepared by lost wax technique. The marginal area and four internal areas of the crowns were measured at two stages: before veneering process and after upper porcelain firing. Silicone replica techniques were used. The data were statistically analyzed with the paired t-test (${\alpha}=0.05$). $Mean{\pm}SD$ marginal and internal gap were $67.1{\pm}23.3{\mu}m$ for the nickle chrome alloy core group and $74.4{\pm}21.9{\mu}m$ for the metal ceramic crown group. There were statistically significant differences in all investigated areas (p<0.05). Within the limitations of this study, none of the Ni-Cr alloy metal crown values measured after porcelain firing process exceeded $120{\mu}m$, which is the clinically acceptable threshold.

키워드

참고문헌

  1. Azer SS, Ayash GM, Johnston WM, Khalil MF, Rosenstiel SF: Effect of esthetic core shades on the final color of IPS Empress all-ceramic crowns. J Prosthet Dent 96: 397-401, 2006. https://doi.org/10.1016/j.prosdent.2006.09.020
  2. Brecker SC: Porcelain bakes to gold-a new medium in prosthodontics. J Prosthet Dent 6: 801-810, 1956. https://doi.org/10.1016/0022-3913(56)90077-4
  3. Rosenstiel SF, Land MF, Fujimoto J: Contemporary fixed prosthodontics. 4th ed. Mosby, St. Louis, pp.599-608, 2006.
  4. Wataha JC: Alloys for prosthodontic restorations. J Prosthet Dent 87: 351-363, 2002. https://doi.org/10.1067/mpr.2002.123817
  5. Eliasson A, Arnelund CF, Johansson A: A clinical evaluation of cobalt-chromium metal-ceramic fixed partial dentures and crowns: A three- to seven-year retrospective study. J Prosthet Dent 98: 6-16, 2007. https://doi.org/10.1016/S0022-3913(07)60032-8
  6. Shillingburg HT Jr, Hobo S, Fisher DW: Preparation design and margin disortion in porcelain-fused-to-metal restorations. J Prosthet Dent 29: 276-284, 1973. https://doi.org/10.1016/0022-3913(73)90007-3
  7. Buchanan WT, Svare CW, Turner KA: The effect of repeated firings and strength on marginal distortion in two ceramometal systems. J Prosthet Dent 45: 502-506, 1981. https://doi.org/10.1016/0022-3913(81)90035-4
  8. Dederich DN, Svare CW, Peterson LC, Turner KA: The effect of repeated firings on the margins of nonprecious ceramometals. J Prosthet Dent 51: 628-630, 1984. https://doi.org/10.1016/0022-3913(84)90406-2
  9. Anusavice KJ, Carroll JE: Effect of incompatibility stress on the fit of metal-ceramic crowns. J Dent Res 66: 1341-1345, 1987. https://doi.org/10.1177/00220345870660081101
  10. Shokry TE, Attia M, Mosleh I, Elhosary M, Hamza T, Shen C: Effect of metal selection and porcelain firing on the marginal accuracy of titanium-based metal ceramic restorations. J Prosthet Dent 103: 45-52, 2010. https://doi.org/10.1016/S0022-3913(09)60216-X
  11. Pierce LH, Goodkind RJ: A status report of possible risks of base metal alloys and their components. J Prosthet Dent 62: 234-238, 1989. https://doi.org/10.1016/0022-3913(89)90320-X
  12. Passon C, Lambert RH, Lambert RL, Newman S: The effect of multiple layes of die-spacer on crown retention. Oper Dent 17: 42-49, 1992.
  13. Abbate MF, Tjan AH, Fox WM: Comparison of the marginal fit of various ceramic crown systems. J Prosthet Dent 61: 527-531, 1989. https://doi.org/10.1016/0022-3913(89)90270-9
  14. Reich S, Uhlen S, Gozdowski S, Lohbauer U: Measurement of cement thickness under lithium disilicate crowns using an impression material technique. Clin Oral Investig 15: 521- 526, 2011. https://doi.org/10.1007/s00784-010-0414-x
  15. Colpani JT, Borba M, Della Bona A: Evaluation of marginal and internal fit of ceramic crown copings. Dent Mater 29: 174-180, 2013. https://doi.org/10.1016/j.dental.2012.10.012
  16. Komine F, Shiratsuchi H, Kakehashi Y, Matsumura H: Influence of porcelain-firing procedures on the marginal distortion of electroformed metal-ceramic restorations. Quintessence Int 38: E583-E588, 2007.
  17. Balkaya MC, Cinar A, Pamuk S: Influence of firing cycles on the margin distortion of 3 all-ceramic crown systems. J Prosthet Dent 93: 346-355, 2005. https://doi.org/10.1016/j.prosdent.2005.02.003
  18. Campbell SD, Pelletier LB: Thermal cycling distortion of metal ceramics: part I―metal collar width. J Prosthet Dent 67: 603-608, 1992. https://doi.org/10.1016/0022-3913(92)90155-4
  19. Council on Dental Materials and Devices: Revised American National Standards Institute/American Dental Association specification No. 8 for zinc phosphate cement. J Am Dent Assoc 96: 121-123, 1978. https://doi.org/10.14219/jada.archive.1978.0032
  20. Sorensen SE, Larsen IB, Jörgensen KD: Gingival and alveolar bone reaction to marginal fit of subgingival crown margins. Scand J Dent Res 94: 109-114, 1986.
  21. Assif D, Rimer Y, Aviv I: The flow of zinc phosphate cement under a full coverage restoration and its effect on marginal adaptation according to the location of cement application. Quintessence Int 18: 765-774, 1987.
  22. Hung SH, Hung KS, Eick JD, Chappell RP: Marginal fit of porcelain-fused-to metal and two types of ceramic crown. J Prosthet Dent 63: 26-31, 1990. https://doi.org/10.1016/0022-3913(90)90260-J
  23. McLean JW, von Fraunhofer JA: The estimation of cementfilm thickness by an in vivo technique. Br Dent J 131: 107-111, 1971. https://doi.org/10.1038/sj.bdj.4802708

피인용 문헌

  1. 지대주 경사각이 지르코니아 전부도재관의 변연적합도에 미치는 영향 vol.38, pp.3, 2016, https://doi.org/10.14347/kadt.2016.38.3.111