수종의 임플란트 토크 조절기의 정확성 비교
Comparison of accuracy of implant torque controllers
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초록
네 종류의 토크 조절기(전자 토크 조절기(Brånemark), 토크 최대값 제한 장치(Pentaborn), 토크 표시 장치(ITI), 콘트라앵글 토크장치(Anthogyr))를 이용하여 나사의 조임 및 풀림 토크값을 측정하여 적정 토크 값과 토크 조절기를 통해 적용되는 실제 토크값에 대한 차를을 측정하여 토크 조절기의 정확도를 비교, 분석하였다. 풀림토크의 평균값 및 최대값과 최소값을 살펴 본 결과 Pentaborn과 같은 토크 최대값 제한 장치의 정확도가 다른 세 종류의 토크 조절기에 비해 우수한 것으로 나타났으며 15회 정도의 조임과 풀림은 큰 영향을 미치지 않지만 그 이상의 조임과 풀림은 정확한 토크 조절에 나쁜 영향을 미치는 것을 알 수 있었다. 그러므로 토크 조절기가 일정하고 정확한 토크값을 반복적으로 유지하는지 확인 및 교정하면서 임상적으로 적용해야 할 것으로 사료된다.
Abstract
Tightening of the screws in implant restorations should be accurate and precise. If applied torque is too low, screw loosening would be occurred. With too high torque, the screw fracture might take place. Various torque generating devices are developed and employed to apply a proper torque. The purpose of this investigation was to determine and compare the accuracy of the torque controllers. In this study, 4 types of torque controllers were used; electronic torque controller, torque limiting device, torque indicating device and contra angle torque driver. Digital torque gauge was employed to measure the de-torque value. Thirty cycles of tightening and loosening were done with each torque controller. All implant torque controllers have shown slight errors and deviations. The torque liming device exhibited the most accurate data. No significant difference was found among the mean de-torque values of the electronic torque controller, torque indicating device and contra angle torque driver. In the limitation of this study, it would be recommended that the implant torque controllers should be checked whether uniformed and precise torque can be generated and a measuring error should be corrected.
참고문헌 (30)
- Misch CE, "Contemporary Implant Dentistry"
- Jemt T, "Failures and complications in 391 consecutively inserted fixed prostheses supported by Brånemark implants in edentulous jaws: a study of treatment from the time of prosthesis placement to the first annual checkup", Int J Oral Maxillofac Implants, 6(3), pp.270~276 (1991)
- Priest G, "Single-tooth implants and their role in preserving remaining teeth: a 10-year survival study", Int J Oral Maxillofac Implants, 14(2), pp.181~188 (1999)
- Jung RE, "A systematic review of the 5-year survival and complication rates of implant-supported single crowns", Clin Oral Implants Res, 19(2), pp.119~130 (2008)
- Khraisat A, "Effect of lateral cyclic loading on abutment screw loosening of an external hexagon implant system", Prosthet Dent, 91(4), pp.326~334 (2004)
- Breeding LC, "Torque required to loosen single-tooth implant abutment screws before and after simulated function", Int J Prosthodont, 6(5), pp.435~439 (1993)
- Jaarda MJ, "Comparison of "look-alike" implant prosthetic retaining screws", J Prosthodont, 4(1), pp.23~27 (1995)
- Patterson EA, "Theoretical analysis of the fatigue life of fixture screws in osseointegrated dental implants", Int J Oral Maxillofac Implants, 7(1), pp.26~33 (1992)
- Weinberg LA, "A comparison of implant", prosthesis loading with four clinical variables, 1995, pp.8(5), 421~433
- Rangert B, "Forces and moments on Branemark implants", Int J Oral Maxillofac Implants, 4(3), pp.241~247 (1989)
- Jaarda MJ, "Effect of preload torque on the ultimate tensile strength of implant prosthetic retaining screws", Implant Dent, 3(1), pp.17~21 (1994)
- Haack JE, "Elongation and preload stress in dental implant abutment screws", Int J Oral Maxillofac Implants, 10(5), pp.529~536 (1995)
- Winkler S, "Implant screw mechanics and the settling effect: overview", J Oral Implantol, 29(5), pp.242~245 (2003)
- Bickford JH, "An introduction to the design and behavior of bolted joints", pp.515~564 (1995), Marcel Dekker
- Binon PP, "The external hexagonal interface and screw-joint stability: A primer on threaded fasteners in implant dentistry", Quint Dent Tech, 23, pp.91~104 (2000)
- McGlumphy EA, "Implant screw mechanics", Dent Clin North Am, 42(1), pp.71~89 (1998)
- Jörnéus L, "Loads and designs of screw joints for single crowns supported by osseointegrated implants", Int J Oral Maxillofac Implants, 7(3), pp.353~359 (1992)
- Jaarda MJ, "Effect of preload torque on the ultimate tensile strength of implant prosthetic retaining screws", Implant Dent, 3(1), pp.17~21 (1994)
- Dellinges M, "Effects of infection control procedures on the accuracy of a new mechanical torque wrench system for implant restorations", J Prosthet Dent, 75(1), pp.93~98 (1996)
- Goheen KL, "Torque generated by handheld screwdrivers and mechanical torquing devices for osseointegrated implants", Int J Oral Maxillofac Implants, 9(2), pp.149~155 (1994)
- Binon PP, "Evaluation of the effectiveness of a technique to prevent screw loosening", J Prosthet Dent, 79(4), pp.430~432 (1998)
- Dellinges MA, "A measurement of torque values obtained with hand-held drivers in a simulated clinical setting", J Prosthodont, 2(4), pp.212~214 (1993)
- Martin WC, "Implant abutment screw rotations and preloads for four different screw materials and surfaces", J Prosthet Dent, 86(1), pp.24~32 (2001)
- Lang LA, "The effect of the use of a counter-torque device on the abutment-implant complex", J Prosthet Dent, 81(4), pp.411~417 (1999)
- Mitrani R, "Accuracy of electronic implant torque controllers following time in clinical service", Int J Oral Maxillofac Implants, 16(3), pp.394~399 (2001)
- Gutierrez J, "Accuracy of the implant torque wrench following time in clinical service", Int J Prosthodont, 10(6), pp.562~567 (1997)
- Standlee JP, "Accuracy of mechanical torque - limiting devices for implants", Int J Oral Maxillofac Implants, 17(2), pp.220~224 (2002)
- Standlee JP, "Accuracy of an electric torque-limiting device for implants", Int J Oral Maxillofac Implants, 14(2), pp.278~281 (1999)
- Çehreli MC, "Accuracy of a manual torque application device for morse-taper implants: a technical note", Int J Oral Maxillofac Implants, 19(5), pp.743~748 (2004)
- Burguete RL, "Tightening characteristics for screwed joints in osseointegrated dental implants", J Prosthet Dent, 71(6), pp.592~599 (1994)