Open Access, Peer-reviewed, Quarterly
pISSN 0301-2875
eISSN 2005-3789
    J Korean Acad Prosthodont. 2013 Oct;51(4):300-306. Korean.
    Published online Oct 30, 2013.
    https://doi.org/10.4047/jkap.2013.51.4.300
    Copyright © 2013 The Korean Academy of Prosthodontics
    Original Article

    Comparative analysis of accuracy of how to use the implant torque controllers

    Lee-Ra Cho, DDS, MSD, PhD,1 Chan-Jin Park, DDS, MSD, PhD,1 Yoon-Hyuk Huh, DDS, MSD,2 Ji-Hye Lee, DDS, MSD,3 and Dae-Gon Kim, DDS, MSD1
      • 1Department of Prosthodontics, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea.
      • 2Department of Prosthodontics, Sanbon Dental Hospital, Wonkwang University, Gunpo, Korea.
      • 3Department of Dentistry, Uijeongbu St. Mary's Hospital, Catholic University of Korea, Uijeongbu, Korea.
    • Corresponding Author: Dae-Gon Kim. Department of Prosthodontics, College of Dentistry, Gangneung-Wonju National University, Jukheon-gil 7, Gangneung City, Gangwon-do, 210-702, Korea. +82 33 640 2761, Email: muscleman@gwnu.ac.kr
    Received September 13, 2013; Revised September 26, 2013; Accepted October 04, 2013.

    This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

    Abstract

    Purpose

    This study was to evaluate the accuracy of how to use the Mechanical Torque-Limiting Devices.

    Materials and methods

    Three different implant manufacturers (Dentium, Osstem, Shinhung) were prepared for each two implant torque controllers. Divided into two groups depending on the method used for removal torque was measured. Repeated measures of ANOVA test (α=.05) was used as statistics to evaluate the effect of repeated loading number on the removal torque. Independent t-test was used to evaluate the difference in removal torque of two groups.

    Results

    The removal torque significantly decreased as the number of loading repetition increased (P<.05). There was significant difference between two groups.

    Conclusion

    Loosen the handle part of the implant torque controllers spring resilience to recover one group compared to the group that did not, showed a little more closed to the reference value.

    Keywords
    Mechanical Torque-Limiting Devices; Detorque; Spring

    Figures

    Fig. 1
    Mechanical Torque-Limiting Devices (MTLDs). From top to bottom, head, body, spring, handle. A: Dentium MTLD, B: Osstem MTLD, C: Shinhung MTLD.

    Fig. 2
    Group 1: Loosen the handle portion of MTLDs. A: Dentium MTLD, B: Osstem MTLD, C: Shinhung MTLD.

    Fig. 3
    Group 2: Tighten the handle portion of MTLDs. A: Dentium MTLD, B: Osstem MTLD, C: Shinhung MTLD.

    Fig. 4
    Implant fixture, abutment, abutment screw used for this study.

    Fig. 5
    Specimen preparation. Implant fixture to resin block is fixed. Then connect abutment and abutment screw.

    Fig. 6
    Removal torque value measuring set. This is composed of a digital torque gauge, a specimen loading apparatus, an aluminum framework, and specimen grip device.

    Fig. 7
    Comparison between Group 1 and Group 2 removal torque value. A: Dentium MTLD, B: Osstem MTLD, C: Shinhung MTLD.

    Tables

    Table 1
    Test samples with the initial torque, removal torque of each groups

    References

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    MeSH Terms
    Reference Values
    Torque*
    Metrics
    Share
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