Journal of Dental Rehabilitation and Applied Science (구강회복응용과학지)

Korean Academy of Stomatognathic Function and Occlusion (대한턱관절교합학회)
권호 표지

Retention of CAD/CAM Metal Copings Cemented on Short Titanium Abutments with Different Cements

짧은 티타늄 지대주에 합착된 CAD/CAM 금속 코핑의 시멘트 종류에 따른 유지력 비교

  • Kim, Hyo-Jung (Department of Dentistry, Inha University School of Medicine) ;
  • Song, Eun-Young (Department of Dentistry, Inha University School of Medicine) ;
  • Yoon, Ji-Young (Department of Dentistry, Inha University School of Medicine) ;
  • Lee, Si-Ho (Department of Dentistry, Inha University School of Medicine) ;
  • Lee, Yong-Keun (Department of Dental Biomaterials and Bioengineering, College of Dentistry, Yonsei University) ;
  • Oh, Nam-Sik (Department of Dentistry, Inha University School of Medicine)
  • 김효정 (인하대학교 의과대학 치과학교실) ;
  • 송은영 (인하대학교 의과대학 치과학교실) ;
  • 윤지영 (인하대학교 의과대학 치과학교실) ;
  • 이시호 (인하대학교 의과대학 치과학교실) ;
  • 이용근 (연세대학교 치과대학 치과생체재료공학교실) ;
  • 오남식 (인하대학교 의과대학 치과학교실)
  • Received : 2012.04.05
  • Accepted : 2012.06.25
  • Published : 2012.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

State of problem: Cement-retained implant-supported prostheses are routinely used in dentistry. The use of high strength cements has become more popular with the increasing confidence in the stability of the implant-abutment screw connection and the high survival rates of osseointegrated implants. No clinical data on retention of metal copings using CAD/CAM. To evaluate retention of metal copings using CAD/CAM system bonded to short titanium abutment with four different cements and compare retentive strength of metal copings with sandblasting or without sandblasting before cementation. Forty titanium abutment blocks were fabricated and divided into 4 groups of 10 samples each. Forty metal copings with occlusal hole to allow for retention testing were fabricated using CAD/CAM technology. The four cements were Fujicem(Fuji, Japan), Maxcem Elite(Kerr, USA), Panavia F2.0(Kurarary, Japan) and Superbond C&B(Sunmedical, Japan). The copings were cemented on the titanium abutment according to manufacture's recommendation. All samples were stored for 24h at 37oC in 100% humidity and tested for retention using universal testing machine(Instron) at a crosshead speed of 1.0mm/min. Force at retentive failure was recorded in Newton. The mode of failure was also recorded. Means and standard deviations of loads at failure were analyzed using ANOVA and Paired t-test. Statistical significance was set at P<0.05. Panavia F2.0 provided significantly higher retentive strength than Fujicem, Maxcem Elite(P<0.05). Sandblasting significantly increased bond strength(P<0.05). The mode of failure was cement remaining principally on metal copings. Within the limitation of this study, Panavia F2.0 showed significantly stronger retentive strength than Fujicem, Maxcem Elite(p<0.05). The Ranking order of the cements to retain the copings was Panavia F2.0, Fujicem = Maxcem Elite. Sandblasting significantly increased bond strength(P<0.05). The retentive strength of metal copings on implant abutment were influenced by surface roughness and type of cements.

시멘트 유지 임플란트 지지 수복물은 치과 치료에 일상적으로 사용된다. 임플란트와 지대주 나사연결의 안정적인 견고함과 골유합 임플란트의 높은 생존율로 인해 높은 강도를 가진 시멘트의 사용이 점차 늘어나고 있다. 그러나 CAD/CAM을 이용하여 제작한 금속 코핑의 유지력에 대해 이용할 수 있는 임상 자료가 없다. 네 종류의 시멘트를 이용하여 티타늄 지대주와 CAD/CAM을 이용하여 제작한 금속 코핑의 유지력을 평가하는 것과 시멘트 유지력에 대한 sandblasting의 효과를 알아보고자 함이다. 40개의 티타늄 지대주 블록(Innovium, 세라젬바이오시스, 대한민국)을 제작하여 네 그룹으로 나누었다. 40개의 금속 코핑을 CAD/CAM을 이용하여 제작하고 금속 코핑의 교합면 상방부에 유지력 테스트를 위해 구멍을 형성하였다. 네 종류의 시멘트는 Fujicem(Fuji, Japan), Maxcem Elite(Kerr, USA), Panavia F2.0(Kurarary, Japan), Superbond C&B(Sunmedical, Japan)이다. 금속 코핑과 티타늄 지대주를 제조사의 지시대로 시멘트 혼합하여 합착하고 100% 습도 하에 37도에서 24시간 동안 보관 후 유지력 테스트하였다. 유지 실패가 발생하는 힘을 newton으로 기록하고 실패의 양상 또한 기록하였다. 유지력의 평균과 표준 편차를 ANOVA와 Paired t-test 로 통계분석하였다. Panavia F2.0이 Fujicem과 Maxcem Elite보다 통계적으로 유의하게 높은 유지력을 보였다(p<0.05). Sandblasting이 모든 시멘트에서 유의하게 유지력을 증가시켰다(p<0.05). 유지력 실패의 양상은 대부분의 시멘트가 금속 코핑 내부에 남아있는 접착성 실패였다. 본 연구의 한계 내에서 Panavia F2.0이 Fujicem이나 Maxcem Elite보다 통계적으로 유의하게 큰 유지력을 보였고(p<0.05), Fujicem과 Maxcem Elite는 유지력의 차이를 보이지 않았다. Sandblasting처리는 모든 실험군에서 유지력의 향상을 보였다. 따라서 임플란트 지대주에 합착된 금속 코핑의 유지력은 표면 거칠기와 시멘트의 종류에 영향을 받는다.

Keywords

References

  1. Michalakis KX, Hirayama H, Garefis PD. Cementretained versus screw-retained implant restorations: a critical review. Int J Oral Maxillofacial Implants 2003; 18(5):719-728
  2. Hebel KS, Gajjar RC. Cement-retained versus screwretained implant restorations: achieving optimal occlusion and esthetics in implant dentistry. J Prosthet Dent 1997;77(1):28-35
  3. Covey DA, Kent DK, St Germain HA Jr, Koka S. Effect of abutment size and luting cement type on the uniaxial retention force of implant supported crowns. J Prosthet Dent 2000; 83:344-348
  4. Abbo Bill, Razzoog ME, Vivas Jose, Sierraalta Marianella. Resistance to dislodgement of zirconia copings cemented onto titanium abutments of different heights. J Prosthet Dent 2008; 99:25-29
  5. Bindl A, Mormann WH. Marginal and internal fit of all-ceramic CAD/CAM crown-copings on chamfer preparations. J Oral Rehabil 2005; 32:441-447
  6. Grenade Charlotte, Mainjot Amelie, Vanheusden Alain. Fit of single tooth zirconia copings: comparison between various manufacturing processes. J Prosthet Dent 2011; 105:249-255
  7. Han H.S, Yang H.S, Lim H.P, Park Y.J. Marginal accuracy and internal fit of machine-milled and cast titanium crowns. J Prosthet Dent 2011; 106:191-197
  8. Palacios RP, Johnson GH, Phillips KM, Raigrodski AJ. Retention of zirconium oxide ceramic crowns with three types of cement. J Prosthet Dent 2006; 96(2):104-114
  9. Mansour A, Ercoli C, Graser G, Tallents TD. Comparative evaluation of casting retention using the ITI solid abutment with six cements. Clin Oral Implants Res 2002; 13:343-348
  10. Al Hamad KQ, Al Rashdan BA, Abu-Sitta EH. The effects of height and surface roughness of abutments and the type of cement on bond strength of cement-retained implant restorations. Clin Oral Implant Res 2011;22(6):638-644
  11. Ergin S, Gemalmaz D. Retentive properties of five different luting cements on base and noble metal copings. J Prosthet Dent 2002; 88:491-497
  12. Maeyama H, Sawase T, Jimbo R, Kamada K, Suketa N, Fukui J. & Atsuta M. Retentive strength of metal copings on prefabricated abutments with with five different cements. Clin Implant Dent Relat Res 2005; 7(4):229-234
  13. Sadig WM, Al Hardi MW. Effects of surface conditioning on the retentiveness of titanium crowns over short implant abutments. Implant Dent 2007; 16(4):387-396
  14. Kanchanavasita W, Anstice HM, Pearson GJ. Longterm flexural strength of resin modified glass ionomer cements Biomaterials 1998; 19(18):1703-13
  15. Johnson GH, Lepe X, Zhang H, Wataha JC. Retention of metal-ceramic crowns with contemporary dental cements. J Am Dent Assoc 2009;140(9):1125-1136
  16. Taira Y, Yoshida K, Matsumura H, Atsuta M. Phosphate and thiophosphate primers for bonding prosthodontic luting materials to titanium. J Prosthet Dent 1998; 79(4):384-388
  17. Abreu A, LozaMA, Elias A et al. Tensile bond strength of an adhesive resin cement to different alloys having various surface treatments. J Prosthet Dent 2009; 101(2):107-118
  18. Yang TJ, Lim JH, Jo IH. A research examining the impacts of non-precious alloy surface treatments and the different types of resin cements on tensile bonding strength. The Korean Academy of Prosthodontics. 1996;34:335.
  19. Ebert A, Hedderich J, Kern M. Retention of zirconia ceramic copings bonded to titanium abutments. J Oral Maxillofac Implants 2007;22(6): 921-927 (abstract)
  20. Ernst CP,Wenzl N,Stender E,Willershausen B. Influence of different luting concepts on long term retentive strength of zirconia crown. Am J Dent 2009 22(2):122-128