The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
권호 표지

THE COMPARATIVE STUDY OF THERMAL INDUCTIVE EFFECT BETWEEN INTERNAL CONNECTION AND EXTERNAL CONNECTION IMPLANT IN ABUTMENT PREPARATION

구강내에서 임플랜트 지대주 형성 시 내부연결방식과 외부연결방식간의 열전달 효과 비교

  • Huh, Jung-Bo (Department of Dentistry, College of Medicine, Ajou University Hospital) ;
  • Ko, Sok-Min (Department of Dentistry, College of Medicine, Ajou University Hospital)
  • 허중보 (아주대학교 의과대학 치과학교실) ;
  • 고석민 (아주대학교 의과대학 치과학교실)
  • Published : 2007.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

Statement of problem: The cement-type abutment would be needed for the reduction of its body in order to correct the axis and to assure occlusal clearance. In the case of intraoral preparation, there is a potential risk that generated heat could be transmitted into the bone-implant interface, where it can cause deterioration of tissues around the implant and failed osseointegration. Purpose: The purpose of this study was to assess the difference of the heat transmitting effect on external and internal connection implant types under various conditions. Material and method: For evaluating the effects of alternating temperature, the thermocoupling wires were attached on 3 areas of the implant fixture surface corresponding to the cervical, middle, and apex. The abutments were removed 1mm in depth horizontally with diamond burs and were polished for 30 seconds at low speed with silicone points using pressure as applied in routine clinical practice. Obtained data were analyzed using Mann-Whitney rank-sum test and Wilcoxon / Kruskal-Wallis Tests. Result: Increased temperature on bone-implant interface was evident without air-water spray coolant both at high speed reduction and low speed polishing (p<.05). But, the difference between connection types was not shown. Conclusion: The reduction procedure of abutment without using proper coolant leads to serious damage of oral tissues around the implant irrespective of external and internal connection type.

Keywords

References

  1. Albrektsson T, Branemark PI, Hansson HA, Lindstro J. Osseointegrated titanium implants.: Requirements for ensuring a long lasting, direct bone anchorage in man. Acta Orthop Scand 1981;52:155-170 https://doi.org/10.3109/17453678108991776
  2. Albrektsson T, Zarb G, Worthington P, Eriksson AR. The long-term efficacy of currently used implants: A review and proposed criteria of success. Int J Oral Maxillofac Implants 1986;1:11-25
  3. Pjetursson BE, Tan K, Lang NP, Bragger U, Egger M, Zwahlen M. A systemic review of the survival and complication rates of fixed partial dentures(FPDs) after an observation period of at least 5 years. I. Implant-supported FPDs. Clin Oral Impl Res 2004;15:625-642 https://doi.org/10.1111/j.1600-0501.2004.01117.x
  4. Eriksson AR, Albrektsson T. Temperature threshold levels for heat-induced bone tissue injury: A vital-microscopic study in the rabbit. J Prosthet Dent 1983;50:101-107 https://doi.org/10.1016/0022-3913(83)90174-9
  5. Taylor TD, Agar JR. Twenty years of progress in implant prosthodontics. J Prosthet Dent 2002;88:89-95 https://doi.org/10.1067/mpr.2002.126818
  6. Robinson HBG, Lefkowitz W. Operative dentistry and the pulp. J Prosthet Dent 1962;12:985-1001 https://doi.org/10.1016/0022-3913(62)90052-5
  7. Maeda Y, Satoh T, Sogo M. In vitro differences of stress concentrations for internal and external hex implant-abutment connections: a short communication. J Oral Rehabil 2006;33:75-78 https://doi.org/10.1111/j.1365-2842.2006.01545.x
  8. Kim YL, Cho HW, Lee JB. Threedimensional finite element analysis of internally connected implant systems. The Journal of Korean Academy of Prosthodontics 2006;44:85-102
  9. Pauletto N, Lahiffe BJ, Walton JN. Complications associated with excess cement around crowns on osseointegrated implants: a clinical report. Int J Oral Maxillofac Implants 1999:14:865-868
  10. Guichet DL, Caputo AA, Choi H, Sorensen JA. Passivity of fit and marginal opening in screw- or cement-retained implant fixed partial denture designs. Int J Oral Maxillofac Implants 2000;15:239-246
  11. Lee JW, Kim CW, Jang KS, Lim YJ. The effect of preparation procedure on implant abutment joint stability. The Journal of Korean Academy of Prosthodontics 2005;43:662-670
  12. Schuchard A, Watkins C. Temperature response to increased rotational speeds. J Prosthet Dent 1961;11:313-317 https://doi.org/10.1016/0022-3913(61)90207-4
  13. Stanley HR, Swerdlow H. Biological effects of various cutting methods in cavity preparation: the part pressure plays in pulpal response. J Am Dent Assoc 1960;61:450- 456 https://doi.org/10.14219/jada.archive.1960.0202
  14. Goodis HE, Schein B, Stauffer P. Temperature changes measured in vivo at the dentoenamel junction and pulpodentin junction during cavity preparation in the Macaca fascicularis monkey. J Endod 1988;14:336-339 https://doi.org/10.1016/S0099-2399(88)80194-8
  15. Lockard MW. A retrospective study of pulpal response in vital adult teeth prrepared for complete coverage restorations at ultrahigh speed using only air coolant. J Prosthet Dent 2002;88:473-478 https://doi.org/10.1067/mpr.2002.129380
  16. Bachus KN, Rondina MT, Hutchinson DT. The effects of drilling force on cortical temperatures and their duration: an in vitro study. Med Eng Phys 2000;22:685-691 https://doi.org/10.1016/S1350-4533(01)00016-9
  17. Esposito M, Thomsen P, Ericson LE, Sennerby L, Lekholm U. Histopathologic observations on late oral implant failures. Clin Implant Dent Relat Res. 2000;2:18-32 https://doi.org/10.1111/j.1708-8208.2000.tb00103.x
  18. Esposito M, Hirsch JM, Lekholm U, Thomsen P. Biological factors contributing to failures of osseointegrated oral implants. (I). Success criteria and epidemiology. Eur J Oral Sci 1998;106:527-551 https://doi.org/10.1046/j.0909-8836..t01-2-.x
  19. Schenk R, Hunziker EB. Histologic and ultrastructural features of fracture healing. In: Bone formation and repair. Rosemont, IL: American Academy of Orthopaedic Surgeons. 1994:117-146
  20. Roberts WE. Bone tissue interface. J Dent Educ 1988:52;804-809
  21. Brunski JB. In vivo bone response to biomechanical loading at the bone/dentalimplant interface. Adv Dent Res 1999: 13;99-119 https://doi.org/10.1177/08959374990130012301
  22. Gross M, Laufer BZ, Ormianar Z. An investigation on heat transfer to the implantbone interface due to abutment prreparation with high-speed cutting instruments. Int J Oral Maxillofac Implants 1995;10:207- 212
  23. Bragger U, Wermuth W, Torok E. Heat generated during preparation of titanium implants of the ITI dental implant system: an in vitro study. Clin Oral Impl Res 1995; 6:254-259 https://doi.org/10.1034/j.1600-0501.1995.060409.x
  24. Hur JK, Kay KS, Chung CH. Finite element stress analysis of implant prosthesis according to connection types of implant-abutment. The Journal of Korean Academy of Prosthodontics 2005;43:545-561