타이타늄의 표면개질에 따른 도재 결합 특성

THE BOND CHARACTERISTICS OF PORCELAIN FUSED BY TITANIUM SURFACE MODIFICATION

  • 최택휴 (전남대학교 치의학 전문 대학원 보철학교실) ;
  • 박상원 (전남대학교 치의학 전문 대학원 보철학교실) ;
  • 방몽숙 (전남대학교 치의학 전문 대학원 보철학교실) ;
  • 양홍서 (전남대학교 치의학 전문 대학원 보철학교실) ;
  • 박하옥 (전남대학교 치의학 전문 대학원 보철학교실) ;
  • 임현필 (전남대학교 치의학 전문 대학원 보철학교실) ;
  • 오계정 (전남대학교 치의학 전문 대학원 보철학교실) ;
  • 김현승 (전남대학교 치의학 전문 대학원 보철학교실) ;
  • 이광민 (전남대학교 신소재공학부 및 기능성 표면공학연구소) ;
  • 이경구 (타이타늄.특수합금부품개발지원센터)
  • Choi, Taek-Huw (Department of Prosthodontics, College of Dentistry, Chonnam National University) ;
  • Park, Sang-Won (Department of Prosthodontics, College of Dentistry, Chonnam National University) ;
  • Vang, Mong-Sook (Department of Prosthodontics, College of Dentistry, Chonnam National University) ;
  • Yang, Hong-So (Department of Prosthodontics, College of Dentistry, Chonnam National University) ;
  • Park, Ha-Ok (Department of Prosthodontics, College of Dentistry, Chonnam National University) ;
  • Lim, Hyun-Pil (Department of Prosthodontics, College of Dentistry, Chonnam National University) ;
  • Oh, Gye-Jeong (Department of Prosthodontics, College of Dentistry, Chonnam National University) ;
  • Kim, Hyun-Seung (Department of Prosthodontics, College of Dentistry, Chonnam National University) ;
  • Lee, Kwang-Min (Division of Materials Science and Engineering, Research Institute for Functional Surface, Chonnam National University) ;
  • Lee, Kyung-Ku (R&D Center for Titanium and Special Alloys)
  • 발행 : 2007.04.30

초록

Statement of problem: Titanium is well known as a proper metal for the dental restorations, because it has an excellent biocompatibility, resistance to corrosion, and mechanical property. However, adhesion between titanium and dental porcelains is related to the diffusion of oxygen to the reaction layers formed on cast-titanium surfaces during porcelain firing and those oxidized layers make the adhesion difficult to be formed. Many studies using mechanical, chemical and physical methods to enhance the titanium-ceramic adhesion have been actively performed. Purpose: This study meant to comparatively analyse the adhesion characteristics depending on different titanium surface coatings after coating the casts and wrought titanium surfaces with Au and TiN. Material and method: In this study, the titanium specimens (CP-Ti, Grade 2, Kobe still Co. Japan) were categorized into cast and wrought titanium. The wrought titanium was cast by using the MgO-based investment(Selevest CB, Selec). The cast and wrought titanium were treated with Au coating($ParaOne^{(R)}$., Gold Ion Sputter, Model PS-1200) and TiN coating(ATEC system, Korea) and the ultra low fusing dental porcelain was fused and fired onto the samples. Biaxial flection test was done on the fired samples and the porcelain was separated. The adhesion characteristics of porcelain and titanium after firing and the specimen surfaces before and after the porcelain fracture test were observed with SEM. The atomic percent of Si on all sample surfaces was comparatively analysed by EDS. In addition, the constituents of specimen surface layers after the porcelain fracture and the formed compound were evaluated by X-ray diffraction diagnosis. Result: The results of this study were obtained as follows : 1. The surface characteristics of cast and wrought titanium after surface treatment(Au, TiN, $Al_2O_3$ sandblasting) were similar and each cast and wrought titanium showed similar bonding characteristics. 2. Before and after the biaxial flection test, the highest atomic weight change of Si component was found in $Al_2O_3$ sandblasted wrought titanium(28.6at.% $\rightarrow$ 8.3at.%). On the other hand, the least change was seen in Au-Pd-In alloy(24.5at.% $\rightarrow$ 9.1at.%). 3. Much amount of Si components was uniformly distributed in Au and TiN coated titanium, but less amount of Si's was unevenly dispersed on Al2O3 sandblasting surfaces. 4. In X-ray diffraction diagnosis after porcelain debonding, we could see $Au_2Ti$ compound and TiN coating layers on Au and TiN coated surfaces and $TiO_2$, typical oxide of titanium, on all titanium surfaces. 5. Debonding of porcelain on cast and wrought titanium surface after the biaxial flection is considered as a result of adhesion deterioration between coating layers and titanium surfaces. We found that there are both adhesive failure and cohesive failure at the same time. Conclusion: These results showed that the titanium-ceramic adhesion could be improved by coating cast and wrought titanium surfaces with Au and TiN when making porcelain fused to metal crowns. In order to use porcelain fused to titanium clinically, it is considered that coating technique to enhance the bonding strength between coating kKlayers and titanium surfaces should be developed first.

키워드

참고문헌

  1. Cai Z, Bunce N, Nunn ME, Okabe T. Porcelain adherence to dental cast CP titanium: effects of surface modifications. Biomaterials 2001;22:979-986 https://doi.org/10.1016/S0142-9612(00)00263-5
  2. Abdulaziz Sadeq, Zhuo Cai, Ronald D. Woody, Amp W. Miller. Effects of interfacial variables on ceramic adherence to cast and machined commercially pure titanium. J Prosthet Dent 2003;90:10-17 https://doi.org/10.1016/S0022-3913(03)00263-4
  3. Lee KM, Cai Z, Griggs JA, Guiatas L, Lee DJ, Okabe T. SEM/EDS Evaluation of Porcelain Adherence to Gold-Coated Cast Titanium. J Biomed Mater Res Part B: Appl Biomater 2004;68B:165-173
  4. Derand T, Heru H. Bond strength of porcelain on cast vs. wrought titanium. Scand J Dent Res 1992;100:184-188
  5. Saadet A, Semih B. Bond strength of three porcelains to two forms of titanium using two firing atmospheres. J Prosthet Dent 2000;84;567-574 https://doi.org/10.1067/mpr.2000.110267
  6. Russell R. Wang, Gerhard E. Welsch, Othon Monteriro. Silicon nitride coating on titanium to enable titanium-ceramic bonding. J Biomed Mater Res 1999;46: 262-270 https://doi.org/10.1002/(SICI)1097-4636(199908)46:2<262::AID-JBM16>3.0.CO;2-1
  7. Taira M, Moser JB, Greener EH. Face coats for dental casting of titanium alloys. J Dent Res 1985;64:317
  8. Bagby M, Marshall SJ, Marshall GW. Metal ceramic compatibility: A review of the literature. J Prosthet Dent 1990;63:21- 25 https://doi.org/10.1016/0022-3913(90)90259-F
  9. Dent RJ, Preston JD, Moffa JP. Effect of oxidation on ceramometal bond strength. J Prosthet Dent 1982;47:59-62 https://doi.org/10.1016/0022-3913(82)90243-8
  10. Park SY, Jeon YC, Jeong CM. Comparison of the bond strength of ceramics fused to titanium and Ni-Cr alloy. J Korean Acad Prosthodont 2003;41:89-98
  11. Hruska AR, Borelli P. Quality criteria for pure titanium casting, laboratory soldering, intraoral welding, and a device to aid in making uncontaminated castings. J Prosthet Dent 1991;66:561-565 https://doi.org/10.1016/0022-3913(91)90524-Z
  12. Pang IC, Gilbert JL, Chai J, Lautenschlager EP. Bonding characteristics of low-fusing porcelain bonded to pure titanium and palladium- copper alloy. J Prosthet Dent 1995;73:17-75 https://doi.org/10.1016/S0022-3913(05)80267-7
  13. Donachie MJ, editor. Titanium: a technical guide. Metals Park, OH: ASM International. 1988 p.28,69,71
  14. Kimura H, Horning CJ, Okazaki M, Takahashi J. Thermal compatibiltiy of titanium-porcelain system. J Osaka Uni Dent Sch 1990;30:43-52
  15. Andersson M, Bergman B, Bessing C, et al. Clinical results wity titanium crowns fabricated with machine duplication and spark erosion. Acta Odontol Scand 1989;47:279-286 https://doi.org/10.3109/00016358909007713
  16. Gilbert JL, Covey DA, Lautenschlager EP. Bond characteristics of porcelain fused to milled titanium. Dent Mater 1994;10:134-140 https://doi.org/10.1016/0109-5641(94)90054-X
  17. Lautenschlager EP, Monaghan P. Titanium and titanium alloys as dental materials. Int Dent J 1993;43:245-253
  18. Andersson M, Bergman B, Bessing C, Ericson G, Lundquist P, Nilson H. Clinical results with titanium crowns fabricated with machine duplication and spark erosion. Acta Odontol Scand 1989;47:279-286 https://doi.org/10.3109/00016358909007713
  19. Einar B, Warren CW, Geir D, Edward Rd. Mechanical properties of laser-welded cast and wrought titanium. J Prosthet Dent 1995;74:250-257 https://doi.org/10.1016/S0022-3913(05)80131-3
  20. Togaya T, Suzuki M, Tsutsumi A, Ida K. An application of pure titanium to metal porcelain system. J Dent Mater 1983;2:210-219 https://doi.org/10.4012/dmj.2.210
  21. Wang R, Welsch G, Monterio O. Silicon nitride coating on titanium to enable titaniumceramic bonding. J Biomed Mater Res 1999;46:262-270 https://doi.org/10.1002/(SICI)1097-4636(199908)46:2<262::AID-JBM16>3.0.CO;2-1
  22. Wang RR, Fung KK. Oxidation behavior of surface-modified titanium for titanium-ceramic restorations. J Prosthet Dent 1997;77:423-434 https://doi.org/10.1016/S0022-3913(97)70168-9
  23. Kononen M, Varpaveara P, Kivilahti J. Bonding of low-fusing dental porcelain to silver-coated titanium. J Dent Res 1999;78:127
  24. Varpaveara P, Kivilahti J, Kononen M. Comparison of a novel titanium-ceramic system with the commercial systems. J Dent Res 2000;79:27
  25. Oshida Y, Fung L, Isikbay S. Titaniumporcelain system. Part II: Bond strength of fired porcelain on nitrided pure titanium. Biomed Mater Eng 1997;7:13-34
  26. Cai Z, Carrasco L, Okabe T. Porcelain adherence to titanium cast in oxide-coated patterns. Trans Soc Biomater 2002; 25:103
  27. Okazaki M, Wang X, Toguchi MS, Taira M, Takahashi J, Matsuo C, Hino Y. Improvement of bond strength in metal ceramic systems using a gold intermediate layer. J Dent Mater 1998;17:163-173 https://doi.org/10.4012/dmj.17.163
  28. MP Borom, JA Pask. Role of adherence oxides in the development of chemical bonding at glass-metal interfaces. J Am Ceram Soc 1966;49:1-6
  29. M Szantho von Radnoth, EP Lautenschagler. Metal surface changes during porcelain firing. J Dent Res 1969;48:321-326 https://doi.org/10.1177/00220345690480022901
  30. EP Lautenschagler, EH Grenner, WE Elingtion. Microprobe analysis of goldporcelain bonding. J Dent Res 1969; 48: 1206-1209 https://doi.org/10.1177/00220345690480061901
  31. Shell JS, Nielsen JP. Study of the bond between gold alloys and porcelain. J Dent Res 1962;41:1424-1437 https://doi.org/10.1177/00220345620410062101
  32. Rosenstiel SF, Land MF, Fujimoto J. Contemporay fixed prosthodontics, 3rd ed. St. Louis: Mosby, pp.488-512, 2001
  33. Kelly JR, Rose TC. Nonprocious alloys for use in fixed prosthodontics, A Literature review. J Prosthet Dent 1983;49:363 https://doi.org/10.1016/0022-3913(83)90279-2
  34. Kimura H, Horning CJ, Okazak Mi. Oxidation effect on porcelain titanium interface reaction and bond strength. J Dent Mater 1990;9:91-99 https://doi.org/10.4012/dmj.9.91
  35. Adachi M, Mackert JR Jr, Parry EE, Fairhurst CW. Oxide adherence and porcelain bonding to titanium and Ti-6Al-4V alloy. J Dent Res 1990;69:1230-1235 https://doi.org/10.1177/00220345900690060101
  36. Hautaniemi JA, Hero H, Juhanoja JT. On the bonding of porcelain on titanium. J Mater Sci 1992;3:186-191
  37. Atsuo S, Berksun S. Bond strength of three porcelain to two forms of titanium using two firing atmospheres. J Prosthet Dent 2000;84:567-574 https://doi.org/10.1067/mpr.2000.110267
  38. Cai Z, Watanabe I, Mitchell JC, Brantley WA, Okabe T. X-ray diffraction investigation of gold casting alloy-ceramic interfaces. J Mater Sci Mater Med 2001;21:215-223
  39. Kim YM. The Effects of Surface Coating of Titanium on Ceramic Adhesion. Chonnam National University, Doctor's Degree Thesis, 2005
  40. Anusavice K. Meta-Ceramics and dental ceramics for the 21st century, Proceeding of international Symposium on titanium in dentistry. 1995;3: 137-154
  41. Papazoglou E, Brantley WA, Carr AB, Johnston WM. Porcelain adherence to high-palladium alloys, J Prosthet Dent 1993;70:386-394 https://doi.org/10.1016/0022-3913(93)90072-V