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The effect of steam sterilization on the accuracy of spring-style mechanical torque devices for dental implants

BACKGROUND: Mechanical torque devices (MTDs) are one of the most commonly recommended devices used to deliver optimal torque to the screw of dental implants. Recently, high variability has been reported about the accuracy of spring-style mechanical torque devices (S-S MTDs). Joint stability and surv...

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Autores principales: Mahshid, Minoo, Saboury, Aboulfazl, Fayaz, Ali, Sadr, Seyed Jalil, Lampert, Friedrich, Mir, Maziar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Dove Medical Press 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3652367/
https://www.ncbi.nlm.nih.gov/pubmed/23674923
http://dx.doi.org/10.2147/CCIDEN.S32052
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author Mahshid, Minoo
Saboury, Aboulfazl
Fayaz, Ali
Sadr, Seyed Jalil
Lampert, Friedrich
Mir, Maziar
author_facet Mahshid, Minoo
Saboury, Aboulfazl
Fayaz, Ali
Sadr, Seyed Jalil
Lampert, Friedrich
Mir, Maziar
author_sort Mahshid, Minoo
collection PubMed
description BACKGROUND: Mechanical torque devices (MTDs) are one of the most commonly recommended devices used to deliver optimal torque to the screw of dental implants. Recently, high variability has been reported about the accuracy of spring-style mechanical torque devices (S-S MTDs). Joint stability and survival rate of fixed implant supported prosthesis depends on the accuracy of these devices. Currently, there is limited information on the steam sterilization influence on the accuracy of MTDs. The purpose of this study was to assess the effect of steam sterilization on the accuracy (±10% of the target torque) of spring-style mechanical torque devices for dental implants. MATERIALS AND METHODS: Fifteen new S-S MTDs and their appropriate drivers from three different manufacturers (Nobel Biocare, Straumann [ITI], and Biomet 3i [3i]) were selected. Peak torque of devices (5 in each subgroup) was measured before and after autoclaving using a Tohnichi torque gauge. Descriptive statistical analysis was used and a repeated-measures ANOVA with type of device as a between-subject comparison was performed to assess the difference in accuracy among the three groups of spring-style mechanical torque devices after sterilization. A Bonferroni post hoc test was used to assess pairwise comparisons. RESULTS: Before steam sterilization, all the tested devices stayed within 10% of their target values. After 100 sterilization cycles, results didn’t show any significant difference between raw and absolute error values in the Nobel Biocare and ITI devices; however the results demonstrated an increase of error values in the 3i group (P < 0.05). Raw error values increased with a predictable pattern in 3i devices and showed more than a 10% difference from target torque values (maximum difference of 14% from target torque was seen in 17% of peak torque measurements). CONCLUSION: Within the limitation of this study, steam sterilization did not affect the accuracy (±10% of the target torque) of the Nobel Biocare and ITI MTDs. Raw error values increased with a predictable pattern in 3i devices and showed more than 10% difference from target torque values. Before expanding upon the clinical implications, the controlled and combined effect of aging (frequency of use) and steam sterilization needs more investigation.
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spelling pubmed-36523672013-05-14 The effect of steam sterilization on the accuracy of spring-style mechanical torque devices for dental implants Mahshid, Minoo Saboury, Aboulfazl Fayaz, Ali Sadr, Seyed Jalil Lampert, Friedrich Mir, Maziar Clin Cosmet Investig Dent Original Research BACKGROUND: Mechanical torque devices (MTDs) are one of the most commonly recommended devices used to deliver optimal torque to the screw of dental implants. Recently, high variability has been reported about the accuracy of spring-style mechanical torque devices (S-S MTDs). Joint stability and survival rate of fixed implant supported prosthesis depends on the accuracy of these devices. Currently, there is limited information on the steam sterilization influence on the accuracy of MTDs. The purpose of this study was to assess the effect of steam sterilization on the accuracy (±10% of the target torque) of spring-style mechanical torque devices for dental implants. MATERIALS AND METHODS: Fifteen new S-S MTDs and their appropriate drivers from three different manufacturers (Nobel Biocare, Straumann [ITI], and Biomet 3i [3i]) were selected. Peak torque of devices (5 in each subgroup) was measured before and after autoclaving using a Tohnichi torque gauge. Descriptive statistical analysis was used and a repeated-measures ANOVA with type of device as a between-subject comparison was performed to assess the difference in accuracy among the three groups of spring-style mechanical torque devices after sterilization. A Bonferroni post hoc test was used to assess pairwise comparisons. RESULTS: Before steam sterilization, all the tested devices stayed within 10% of their target values. After 100 sterilization cycles, results didn’t show any significant difference between raw and absolute error values in the Nobel Biocare and ITI devices; however the results demonstrated an increase of error values in the 3i group (P < 0.05). Raw error values increased with a predictable pattern in 3i devices and showed more than a 10% difference from target torque values (maximum difference of 14% from target torque was seen in 17% of peak torque measurements). CONCLUSION: Within the limitation of this study, steam sterilization did not affect the accuracy (±10% of the target torque) of the Nobel Biocare and ITI MTDs. Raw error values increased with a predictable pattern in 3i devices and showed more than 10% difference from target torque values. Before expanding upon the clinical implications, the controlled and combined effect of aging (frequency of use) and steam sterilization needs more investigation. Dove Medical Press 2012-07-31 /pmc/articles/PMC3652367/ /pubmed/23674923 http://dx.doi.org/10.2147/CCIDEN.S32052 Text en © 2012 Mahshid et al, publisher and licensee Dove Medical Press Ltd This is an Open Access article which permits unrestricted noncommercial use, provided the original work is properly cited.
spellingShingle Original Research
Mahshid, Minoo
Saboury, Aboulfazl
Fayaz, Ali
Sadr, Seyed Jalil
Lampert, Friedrich
Mir, Maziar
The effect of steam sterilization on the accuracy of spring-style mechanical torque devices for dental implants
title The effect of steam sterilization on the accuracy of spring-style mechanical torque devices for dental implants
title_full The effect of steam sterilization on the accuracy of spring-style mechanical torque devices for dental implants
title_fullStr The effect of steam sterilization on the accuracy of spring-style mechanical torque devices for dental implants
title_full_unstemmed The effect of steam sterilization on the accuracy of spring-style mechanical torque devices for dental implants
title_short The effect of steam sterilization on the accuracy of spring-style mechanical torque devices for dental implants
title_sort effect of steam sterilization on the accuracy of spring-style mechanical torque devices for dental implants
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3652367/
https://www.ncbi.nlm.nih.gov/pubmed/23674923
http://dx.doi.org/10.2147/CCIDEN.S32052
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