The Effect of Aging on the Accuracy of Spring-Style Mechanical Torque Limiting Devices for Dental Implants
Journal of Dental School, Shahid Beheshti University of Medical Sciences,
Vol. 31 No. 2 (2013),
27 June 2020
,
Page 78-86
https://doi.org/10.22037/jds.v31i2.29086
Abstract
Objective: Recently, a wide variation has been reported in delivery of the target torque by spring- style mechanical torque limiting devices (MTLDs) but the effect of aging on their accuracy has not been independently evaluated. The purpose of this study was to determine the effect of aging on the accuracy of spring-style MTLDs.
Methods: In this in-vitro experimental study, 15 new spring-style MTLDs were selected of three different manufacturers. To measure their accuracy, the peak torque was measured in 10 sequences by a Tohnichi torque gauge before and after 1000 times of use. In each sequence, 10 repetitions of peak torque values were registered. The intra-class correlation coefficient (ICC) was calculated and Repeated Measures ANOVA and two-way ANOVA were applied to calculate and compare the absolute error values between the three understudy groups.
Results: The absolute error value was in the range of -3.5(-3) Ncm for 3i group, -2.5 (1) Ncm for ITI and -4-+2 Ncm for Nobel Biocare group. The latter value showed a significant difference with the two former values (p<0.05). All samples in the ITI group had error values within 10% of the clinically acceptable range. About 5% of measurements (maximum of 11.4%) in Nobel Biocare and 9% of measurements (maximum of 14.53%) in the 3i group showed error values greater than the 10% range.
Conclusion: Aging decreased the accuracy of spring-style MTLDs. The magnitude and trend of reduction in accuracy were variable among different groups.
- Accuracy
- Aging
- Application times
- Dental implant
- Mechanical Torque Limiting Devices (MTLDs)
- Spring-style
- Torque
How to Cite
References
Guda T, Ross TA, Lang LA, Millwater HR. Probabilistic analysis of preload in the abutment screw of a dental implant complex. J Prosthet Dent 2008; 100: 183-193.
McGlumphy EA, Mendel DA, Holloway JA. Implant screw mechanics. Dent Clin North Am 1998; 42: 71-89.
Haack JE, Sakaguchi RL, Sun T, Coffey JP. Elongation and preload stress in dental implant abutment screws. Int J Maxillofac Implants 1995; 10: 529-536.
Burguete RL, Johns RB, King T, Patterson EA. Tightening characteristics for screwed joints in osseointegrated dental implants. J Prosthet Dent 1994; 71: 592-599.
Byrne D, Jacobs S, O’Connell B, Houston F, Claffey N. Preloads generated with repeated tightening in three types of screws used in dental implant assemblies. J Prosthodont 2006; 15: 164-171.
Tan KB, Nicholls JI. Implant-abutment screw joint preload of 7 hex-top abutment systems. Int J Oral Maxillofac Implants 2001; 16: 376-377.
Goheen KL, Vermilyea SG, Vossoughi J, Agar JR. Torque generated by handheld screwdrivers and mechanical torquing devices for osseointegrated implants. J Oral Maxillofac Implants 1994; 9: 149-155.
Vallee MC, Conrad HJ, Basu S, Seong WJ. Accuracy of friction-style and spring-style mechanical torque limiting devices for dental hmplants. J Prosthet Dent 2008; 100: 86-92.
Jörnéus L, Jemt T, Carlsson L. Loads and designs of screw joints for single crowns supported by osseointegrated implants. Int J Oral Maxillofac Implants 1992; 7: 353-359.
Gratton DG, Aquilino SA, Stanford CM. Micromotion and dynamic fatigue properties of the dental implant-abutment interface. J Prosthet Dent 2001; 85: 47-52.
Tan KB, Nicholls JI. The effect of 3 torque delivery systems on gold screw preload at the gold cylinder abutment screw joint. Int J Oral Maxillofac Implants 2002; 17: 175-183.
Weinberg LA. The biomechanics of force distribution in implant-supported prostheses. Int J Oral Maxillofac Implants 1993; 8: 19-31.
Naert I, Quirynen M, van Steenberghe D, Darius PA Six year prosthodontic study of 509 consecutively inserted implants for the treatment of partial edentulism. J Prosthet Dent 1992; 67: 236-245.
Pjetursson BE, Tan K, Lang NP, Brägger U, Egger M, Zwahlen M. A systematic review of the survival and complication rates of fixed partial dentures (FPDs) after an observation period of at least 5 years. Clin Oral Implants Res 2004; 15: 625-642.
Kreissl ME, GerdsT, Muche R, Heydecke G, Sturb JR. Technical complications of implant- supported fixed partial dentures in partially edentulous cases after an average observation period of 5 years. Clin Oral Implants Res 2007; 18:7 20-726.
Zurdo J, Ramäo C, Wennström JL. Survival and complication rate of implant supported fixed partial dentures with cantilevers: a systematic review. Clin Oral Implants Res 2009; 20: 59-66.
Aglietta M, Siciliano VI, Zwahlen M, Brägger U, Pjetursson BE, Lang NP, Salvi GE. A systematic review of the survival and complication rates of implant supported fixed dental prostheses with cantilever extensions after an observation period of at least 5 years. Clin Oral Implants Res 2009; 20: 441-451.
Dellinges MA, Tebrock OC. A measurement of torque values obtained with hand-held drivers in a simulated clinical setting. J Prosthodont 1993; 2: 212-214.
Jaarda MJ, Razzoog ME, Gratton DG. Providing optimum torque to implant prostheses: a pilot study. Implant Dent 1993; 2: 50-52.
Gross M. Kozak D, Laufer BZ, Weiss EI. Manual closing torque in five implant abutment systems: an in vitro comparative study. J Prosthet Dent 1999; 8:574-578.
Pesun IJ, Brosky ME, Korioth TW, Hodges J, Devoe BJ. Operator-induced compressive axial forces during implant gold screw fastening. J Prothet Dent 2001; 86: 15-19.
Hill EE, Phillips SM, Breding LC. Implant abutment screw torque generated by general dentists using a hand driver in a limited access space simulating the mouth. J Oral Implantol 2007; 33: 277-279.
Standlee JP, Caputo AA. Accuracy of an electric torque-limiting device for implants. Int J Oral Maxillofac Implants 1999; 14; 278-281.
McCracken MS, Mitchell L, Hegde R, Mavalli MD. Variability of mechanical torque limiting devices in clinical service at a US dental school. J Prosthodont 2010; 19: 20-24.
Dellinges M, Curtis D. Effects of infection control procedures on the accuracy of a new mechanical torque wrench system for Implant restorations. J Prosthet Dent 1996; 75: 93-98.
Gutierrez J, Nicholls JI, Libman WJ, Busron TJ. Accuracy of the Implant torque wrench following time in clinical service. Int J Prosthodont 1997; 10: 562-567.
Standlee JP, Caputo AA, Chwu MY, Sun TT. Accuracy of mechanical torque –limiting devices for Implants. Int J Oral Maxillofac Implants 2002; 17: 220-224.
Cehreli MC, Akça K, Tönűk E. Accuracy of a manual torque application device for morse-taper implants: a technical note. Int J Oral Maxillofac Implants 2004; 19: 743-748.
Santos GC Jr, Passos SP, Coelho Santos MJ. Accuracy of mechanical torque devices for implants used in Brazilian dental offices. Int J Prosthodont 2011; 24:38-39.
Fayaz A, Sadr SJ, Saboury A, Mahshid M. The effect of steam sterilization without preparation steps on the accuracy of mechanical torque limiting devices. J Dent Sch 2012; 29(Special I ssue):306-314.
Mahshid M, Saboury A, Fayaz A, Sadr SJ, Lampert F, Mir M. The effect of steam sterilization on the accuracy of spring-style mechanical torque devices for dental implants. Clin Cosmet Investig Dent 2012; 4: 29-35.
Saboury A, Sadr SJ, Fayaz A, Mahshid M.The Effect of aging on the accuracy of new friction-style mechanical torque limiting devices for dental implants. J Dent (Tehran) 2013; 10: 41-50.
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