Effect of component dismantling on quality of sterilization of mechanical torque limiting devices (pilot study)
Journal of Dental School,
Vol. 35 No. 4 (2017),
27 October 2017
,
Page 138-142
https://doi.org/10.22037/jds.v35i4.24595
Abstract
Objectives Dental instruments may serve as a route of infection transmission. The necessity of dismantling of Friction-Style (FS) and Spring- Style (SS) mechanical torque limiting devices (MTLDs) prior to disinfection and sterilization is a matter of debate, aside fromthe fact that it is difficult and time-consuming. This study sought to assess the effect of dismantling of components on quality of sterilizationof MTLDs.
Materials and Methods This in vitro experimental study was performed on 96 torque devices. Forty eight FS-MTLDs of two manufacturers (n = 24) namely Astra Tech (Hader SA, La Chaux-de-Fonds, Switzerland) and Dr. Idhe (Dr. Idhe Dental, Eching, Munich, Germany) and 48 SS-MTLDs of two manufacturers (n = 24) namely Nobel Biocare (Nobel Biocare, Goteborg, Sweden) and Straumann (Institut Straumann, Basel, Switzerland). After coding, specimens were inoculated with Bacillus stearothermophilus (PTCC1713) and 24 devices of four manufacturers each were divided into two groups (n = 12) for disinfection in assembled or disassembled form. Each group was then divided into two subgroups (n = 6) for sterilization in assembled or dismantled form. After disinfection and sterilization, bacterial proliferation was assessed for all MTLDs. In case of observing turbidity, Gram-staining and differential tests were performed. The results were expressed as presence or absence of contamination.
Results Growth of B. stearothermophilus did not occur in any plate (no turbidity). Only one plate showed growth of Staphylococcus saprophyticus.
Conclusion Dismantling of components had no significant effect on quality of sterilization of MTLDs.
- dental implants
- dismantling
- friction-style mechanical torque limiting devices
- spring-style sterilization
How to Cite
References
Fireman Z. Biopsyforceps: Reusable or disposable? Gasteroenterol. Hepatol. 2006;21:1089–1092.
Vallee MC, Conrad HJ, Basu S, Seong WJ. Accuracy of friction-
style and spring-style mechanical torque limiting devices for dental implants. J Prosthet Dent. 2008;100:86–92.
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.
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.
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.
Sadr SJ, Fayyaz A, Mahshid M, Saboury A, Ansari G. Steam sterilization effect on the accuracy of friction-style mechanical torque limiting devices. Indian J Dent Res. 2014;25:352–356.
Fayaz A, Mahshid M, Saboury A, Sadr SJ, Ansari G. The effect of sterilization and number of use on the accuracy of friction-style mechanical torque limiting devices for dental implants. Dent Res J (Isfahan). 2014;11:74–80.
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.
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:
–35.
Mahshid M, Saboury A, Sadr SJ, Fayyaz A, Kadkhodazadeh M. The combined effect of dismantling for steam sterilization and aging on the accuracy of spring-style mechanical torque devices. J Periodontal Implant Sci. 2013;43:221–226.
Marshburn PB, Rotala WA, Wannamaker NS, Holka JF. Gas, and steam sterilization of assembled versus disassembled laparoscopic equipment, microbiologic studies. J Reprod Med. 1991;36:483–487.
Sanchez E, Macdonald G. Decontuminality dental instruments; testing the effectiveness of selected methods. J Am Dent Assoc. 1995;126:359–362, 364, 366 passim.
Wichelhaus A, Brauchlee G, Mertmann M, Sander FG. Corrosion of orthodontic pliers using different sterilization procedures. J Orofac Orthop. 2004;65:501–511.
Popovic J, Gasic J, Zivkovic S, Petrovic A, Radicevic G. Evaluation of biologic debris on endodontic instrument after cleaning and sterilization procedures. Int Endod J. 2010;43:336–341.
Wu G, Yu X. lnfluence of usage history, instrument complenxity, and different cleaning procedures on the cleanliness of blood-contaminated dental surgical instruments. Infect Control Hosp Epidemiol. 2009;30: 702–704.
Infection control recommendations for the dental office and the dental laboratory. ADA council on scientific affairs and ADA council on dental practice. J Am Dent Assoc. 1996;127:672–680.
Kohn WG, Collins AS, Cleveland JL, Harte JA, Eklund KJ, Malvitz DM, et al. Guidelines for infection control in dental health-care settings--2003. MMWR Recomm Rep. 2003;52:1–61.
Acosta- Gio AE, Mata-Portuguez VC, Herrero-Farias A, Perez LS. Biologic monitoring of dental office sterilizers in Mexico. Am J Infect Control. 2002;30:153–157.
Parnia F, Hafezqoran A, Mahmoudian B, Saati E, Moslehifard E, Koodarian R, et al. Comparison of different cleaning procedures of implant drills using TC 99. Implant Dent. 2013;22:627–630.
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