The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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A comparative study on the fit and screw joint stability of ready-made abutment and CAD-CAM custom-made abutment

기성 지대주와 맞춤형 CAD-CAM 지대주의 적합 및 나사 안정성 비교

  • Kim, Jong-Wook (Department of Prosthodontics, School of Dentistry, Chosun University) ;
  • Heo, Yu-Ri (Department of Prosthodontics, School of Dentistry, Chosun University) ;
  • Kim, Hee-Jung (Department of Prosthodontics, School of Dentistry, Chosun University) ;
  • Chung, Chae-Heon (Department of Prosthodontics, School of Dentistry, Chosun University)
  • 김종욱 (조선대학교 치과대학 치과보철학교실) ;
  • 허유리 (조선대학교 치과대학 치과보철학교실) ;
  • 김희중 (조선대학교 치과대학 치과보철학교실) ;
  • 정재헌 (조선대학교 치과대학 치과보철학교실)
  • Received : 2013.08.19
  • Accepted : 2013.10.01
  • Published : 2013.10.31
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Abstract

Purpose: The purpose of this study was to investigate the fit and screw joint stability between Ready-made abutment and CAD-CAM custom-made abutment. Materials and methods: Osstem implant system was used. Ready-made abutment (Transfer abutment, Osstem Implant Co. Ltd, Busan, Korea), CAD-CAM custom-made abutment (CustomFit abutment, Osstem Implant Co. Ltd, Busan, Korea) and domestically manufactured CAD-CAM custom-made abutment (Myplant, Raphabio Co., Seoul, Korea) were fabricated five each and screws were provided by each company. Fixture and abutments were tightening with 30Ncm according to the manufacturer's instruction and then preloding reverse torque values were measured 3 times repeatedly. Kruskal-Wallis test was used for statistical analysis of the preloading reverse torque values (${\alpha}=.05$). After specimens were embedded into epoxy resin, wet cutting and polishing was performed and FE-SEM imaging was performed, on the contact interface. Results: The pre-loading reverse torque values were $26.0{\pm}0.30Ncm$ (ready-made abutment; Transfer abutment) and $26.3{\pm}0.32Ncm$ (CAD-CAM custom-made abutment; CustomFit abutment) and $24.7{\pm}0.67Ncm$ (CAD-CAM custom-made abutment; Myplant). The domestically manufactured CAD-CAM custom-made abutment (Myplant abutment) presented lower pre-loading reverse torque value with statistically significant difference than that of the ready-made abutment (Transfer abutment) and CAD-CAM custom-made abutment (CustomFit abutment) manufactured from the same company (P=.027) and showed marginal gap in the fixture-abutment interface. Conclusion: Within the limitation of the present in-vitro study, in domestically manufactured CAD-CAM custom-made abutment (Myplant abutment) showed lower screw joint stability and fitness between fixture and abutment.

연구 목적: 본 연구에서는 기성 지대주와 맞춤형CAD-CAM 지대주의 적합성 및 나사 사이의 안정성 대해 알아보고자 한다. 연구 재료 및 방법: 오스템 임플란트 시스템을 이용하였다. 동일회사에서 제작된 기성 지대주(Transfer abutment, Osstem Implant Co. Ltd, Busan, Korea) 및 맞춤형CAD-CAM 지대주(CustomFit abutment, Osstem Implant Co. Ltd, Busan, Korea)와 국내 외주 제작된 맞춤형CAD-CAM 지대주(Myplant, Raphabio Co., Seoul, Korea)를 5개씩 선택, 제작하였으며 나사는 각 회사에서 제공되는 것을 사용하였다. 제조사의 지시에 따라 고정체와 지대주를 30 Ncm으로 조인 후 초기 풀림 토크를 3회 반복 측정한 후 통계 분석하였다(${\alpha}=.05$). 고정체-지대주 연결체를 에폭시 레진에 매몰 후 습식 절삭 및 연마하여 계면 사이의 적합성을 FE-SEM으로 관찰하였다. 결과: 지대주의 초기 풀림 토크 값은 각각 기성 지대주(Transfer abutment)에서 $26.0{\pm}0.30Ncm$, 동일 회사에서 제작된 맞춤형CAD-CAM 지대주(CustomFit abutment)에서 $26.3{\pm}0.32Ncm$, 외주로 제작된 맞춤형CAD-CAM 지대주(Myplant abutment)에서 $24.7{\pm}0.67Ncm$였다. 국내 외주 제작된 맞춤형CAD-CAM 지대주에서 유의적으로 낮은 초기 풀림 토크 값을 보였으며(P=.027), 고정체-지대주 계면에서 변연 간극이 관찰되었다. 결론: 본 실험의 한계 내에서 국내 외주 제작된 맞춤형CAD-CAM 지대주는 동일 회사에서 제작된 기성 지대주나 맞춤형CAD-CAM 지대주에 비해 더 낮은 나사 안정성 및 적합성을 보인다고 볼 수 있다.

Keywords

References

  1. Sumi T, Braian M, Shimada A, Shibata N, Takeshita K, Vandeweghe S, Coelho PG, Wennerberg A, Jimbo R. Characteristics of implant-CAD/CAM abutment connections of two different internal connection systems. J Oral Rehabil 2012;39:391-8. https://doi.org/10.1111/j.1365-2842.2011.02273.x
  2. Lang LA, Sierraalta M, Hoffensperger M, Wang RF. Evaluation of the precision of fit between the Procera custom abutment and various implant systems. Int J Oral Maxillofac Implants 2003;18:652-8.
  3. Henriksson K, Jemt T. Evaluation of custom-made procera ceramic abutments for single-implant tooth replacement: a prospective 1-year follow-up study. Int J Prosthodont 2003;16:626-30.
  4. Kim HS. Fabrication of custom abutment using dental CAD/CAM system. J Korean Dent Assoc 2012;50:118-25.
  5. Wu T, Liao W, Dai N, Tang C. Design of a custom angled abutment for dental implants using computer-aided design and nonlinear finite element analysis. J Biomech 2010;43:1941-6. https://doi.org/10.1016/j.jbiomech.2010.03.017
  6. Sailer I, Zembic A, Jung RE, Siegenthaler D, Holderegger C, Hammerle CH. Randomized controlled clinical trial of customized zirconia and titanium implant abutments for canine and posterior single-tooth implant reconstructions: preliminary results at 1 year of function. Clin Oral Implants Res 2009;20:219-25. https://doi.org/10.1111/j.1600-0501.2008.01636.x
  7. Vigolo P, Fonzi F, Majzoub Z, Cordioli G. Evaluation of goldmachined UCLA-type abutments and CAD/CAM titanium abutments with hexagonal external connection and with internal connection. Int J Oral Maxillofac Implants 2008;23:247-52.
  8. Baldassarri M, Hjerppe J, Romeo D, Fickl S, Thompson VP, Stappert CF. Marginal accuracy of three implant-ceramic abutment configurations. Int J Oral Maxillofac Implants 2012;27:537-43.
  9. Lee CJ, Yang SE, Kim SG. Evaluation of reverse torque value of abutment screws on CAD/CAM custom-made implant abutments. J Korean Acad Prosthodont 2012;50:128-34. https://doi.org/10.4047/jkap.2012.50.2.128
  10. Kim NH, Chung CH, Son MK, Back DH. A study on the fit of the implant-abutment-screw interface. J Korean Acad Prosthodont 2003;41:503-18.
  11. Jung SH, Ma JS, Chung CH. A comparative study on the fit in prostheses using premade gold cylinder and plastic cylinder. J Korean Acad Prosthodont 1999;37:825-34.
  12. Jang JS, Kim HJ, Chung CH. Detorque force and surface change of coated abutment screw after repeated closing and opening. J Korean Acad Prosthodont 2008;46:500-10. https://doi.org/10.4047/jkap.2008.46.5.500
  13. Lee HT, Chung CH. Fit of fixture/abutment interface of internal connection implant system. J Korean Acad Prosthodont 2004;42: 192-209.
  14. Siamos G, Winkler S, Boberick KG. Relationship between implant preload and screw loosening on implant-supported prostheses. J Oral Implantol 2002;28:67-73. https://doi.org/10.1563/1548-1336(2002)028<0067:TRBIPA>2.3.CO;2
  15. Kang HW. Compare Stability and Connection of variable customized implant abutments. MS Thesis. In: Korea, Clinical Dentistry of Korea University, 2012.
  16. Zembic A, Sailer I, Jung RE, Hammerle CH. Randomized-controlled clinical trial of customized zirconia and titanium implant abutments for single-tooth implants in canine and posterior regions: 3-year results. Clin Oral Implants Res 2009;20:802-8. https://doi.org/10.1111/j.1600-0501.2009.01717.x
  17. Jemt T, Laney WR, Harris D, Henry PJ, Krogh PH Jr, Polizzi G, Zarb GA, Herrmann I. Osseointegrated implants for single tooth replacement: a 1-year report from a multicenter prospective study. Int J Oral Maxillofac Implants 1991;6:29-36.
  18. Jamiyandorj O, Kim JH, Kim MS, Park YB, Shim JS. Comparison of removal torque between prefabricated and customized abutment screw. J Korean Acad Prosthodont 2012;50:243-8. https://doi.org/10.4047/jkap.2012.50.4.243
  19. Cibirka RM, Nelson SK, Lang BR, Rueggeberg FA. Examination of the implant-abutment interface after fatigue testing. J Prosthet Dent 2001;85:268-75. https://doi.org/10.1067/mpr.2001.114266
  20. Coelho PG, Sudack P, Suzuki M, Kurtz KS, Romanos GE, Silva NR. In vitro evaluation of the implant abutment connection sealing capability of different implant systems. J Oral Rehabil 2008;35:917-24. https://doi.org/10.1111/j.1365-2842.2008.01886.x
  21. Sewerin IP. Radiographic control of fixture-abutment connection in Branemark implant technique. Scand J Dent Res 1989;97:559-64.
  22. Coelho AL, Suzuki M, Dibart S, DA Silva N, Coelho PG. Cross-sectional analysis of the implant-abutment interface. J Oral Rehabil 2007;34:508-16. https://doi.org/10.1111/j.1365-2842.2007.01714.x
  23. Lee JR, Lee DH, Hwang JW, Choi JH. Detorque values of abutment screws in a multiple implant-supported prosthesis. J Korean Acad Prosthodont 2010;48:280-6. https://doi.org/10.4047/jkap.2010.48.4.280
  24. Haack JE, Sakaguchi RL, Sun T, Coffey JP. Elongation and preload stress in dental implant abutment screws. Int J Oral Maxillofac Implants 1995;10:529-36.
  25. Im SM, Kim DG, Park CJ, Cha MS, Cho LR. Biomechanical considerations for the screw of implant prosthesis: A literature review. J Korean Acad Prosthodont 2010;48:61-8. https://doi.org/10.4047/jkap.2010.48.1.61
  26. Alves da Cunha Tde M, Correia de Arau′jo RP, Barbosa da Rocha PV, Pazos Amoedo RM. Comparison of fit accuracy between Procera custom abutments and three implant systems. Clin Implant Dent Relat Res 2012;14:772-7. https://doi.org/10.1111/j.1708-8208.2010.00311.x
  27. Binon PP. Evaluation of machining accuracy and consistency of selected implants, standard abutments, and laboratory analogs. Int J Prosthodont 1995;8:162-78.

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