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Effect of Repeated Sterilization Cycles on the Physical Properties of Scaling Instruments: A Scanning Electron Microscopy Study
BACKGROUND: Repeated sterilizations cycles cause undesirable alterations in the material properties of the instruments, such as corrosion, alterations in the hardness of the metal and the loss of the cutting sharpness of the instrument. This research examined the effect of repeated dry heat steriliz...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Dentmedpub Research and Printing Co
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4441227/ https://www.ncbi.nlm.nih.gov/pubmed/26028893 |
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author | Porto, Alessandra Nogueira Borges, Álvaro Henrique Semenoff-Segundo, Alex Raslan, Suzane A Pedro, Fábio Luis Miranda Jorge, Antônio Olavo Cardoso Bandeca, Matheus Coelho |
author_facet | Porto, Alessandra Nogueira Borges, Álvaro Henrique Semenoff-Segundo, Alex Raslan, Suzane A Pedro, Fábio Luis Miranda Jorge, Antônio Olavo Cardoso Bandeca, Matheus Coelho |
author_sort | Porto, Alessandra Nogueira |
collection | PubMed |
description | BACKGROUND: Repeated sterilizations cycles cause undesirable alterations in the material properties of the instruments, such as corrosion, alterations in the hardness of the metal and the loss of the cutting sharpness of the instrument. This research examined the effect of repeated dry heat sterilization and autoclaves cycles on carbon steel (CS) and stainless steel (SS) curettes during the scaling and root planning. MATERIALS AND METHODS: A total of 77 Gracey curettes were used in this study. Of these, 35 were SS and 42 were CS curettes submitted in different process: Dry heat, autoclave, inhibition of corrosion and autoclave, scaling, root planning and dry heat, scaling, root planning, inhibition of corrosion and autoclave. The inhibition of corrosion used on the carbon curettes (prior to sterilization in the autoclave) was sodium nitrite at 2%. The curettes received 10 consecutive cycles of sterilization and after that the cutting edges were examined in the electronic microscope, at 60 and 100 magnification times. RESULTS: The images were evaluated by three independent examiners, who compared the photographs of each group with the control group. CONCLUSION: The surface corrosion products and a deterioration of the edges were observed and the results showed that the SS curettes suffered little alteration with sterilization, scaling, root planning whereas the CS curettes were visibly affected by sterilization in the autoclave, but when the inhibition of corrosion was used prior to the sterilization, the oxidation was considerably reduced. |
format | Online Article Text |
id | pubmed-4441227 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Dentmedpub Research and Printing Co |
record_format | MEDLINE/PubMed |
spelling | pubmed-44412272015-07-01 Effect of Repeated Sterilization Cycles on the Physical Properties of Scaling Instruments: A Scanning Electron Microscopy Study Porto, Alessandra Nogueira Borges, Álvaro Henrique Semenoff-Segundo, Alex Raslan, Suzane A Pedro, Fábio Luis Miranda Jorge, Antônio Olavo Cardoso Bandeca, Matheus Coelho J Int Oral Health Original Research BACKGROUND: Repeated sterilizations cycles cause undesirable alterations in the material properties of the instruments, such as corrosion, alterations in the hardness of the metal and the loss of the cutting sharpness of the instrument. This research examined the effect of repeated dry heat sterilization and autoclaves cycles on carbon steel (CS) and stainless steel (SS) curettes during the scaling and root planning. MATERIALS AND METHODS: A total of 77 Gracey curettes were used in this study. Of these, 35 were SS and 42 were CS curettes submitted in different process: Dry heat, autoclave, inhibition of corrosion and autoclave, scaling, root planning and dry heat, scaling, root planning, inhibition of corrosion and autoclave. The inhibition of corrosion used on the carbon curettes (prior to sterilization in the autoclave) was sodium nitrite at 2%. The curettes received 10 consecutive cycles of sterilization and after that the cutting edges were examined in the electronic microscope, at 60 and 100 magnification times. RESULTS: The images were evaluated by three independent examiners, who compared the photographs of each group with the control group. CONCLUSION: The surface corrosion products and a deterioration of the edges were observed and the results showed that the SS curettes suffered little alteration with sterilization, scaling, root planning whereas the CS curettes were visibly affected by sterilization in the autoclave, but when the inhibition of corrosion was used prior to the sterilization, the oxidation was considerably reduced. Dentmedpub Research and Printing Co 2015-05 /pmc/articles/PMC4441227/ /pubmed/26028893 Text en Copyright: © Journal of International Oral Health http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Research Porto, Alessandra Nogueira Borges, Álvaro Henrique Semenoff-Segundo, Alex Raslan, Suzane A Pedro, Fábio Luis Miranda Jorge, Antônio Olavo Cardoso Bandeca, Matheus Coelho Effect of Repeated Sterilization Cycles on the Physical Properties of Scaling Instruments: A Scanning Electron Microscopy Study |
title | Effect of Repeated Sterilization Cycles on the Physical Properties of Scaling Instruments: A Scanning Electron Microscopy Study |
title_full | Effect of Repeated Sterilization Cycles on the Physical Properties of Scaling Instruments: A Scanning Electron Microscopy Study |
title_fullStr | Effect of Repeated Sterilization Cycles on the Physical Properties of Scaling Instruments: A Scanning Electron Microscopy Study |
title_full_unstemmed | Effect of Repeated Sterilization Cycles on the Physical Properties of Scaling Instruments: A Scanning Electron Microscopy Study |
title_short | Effect of Repeated Sterilization Cycles on the Physical Properties of Scaling Instruments: A Scanning Electron Microscopy Study |
title_sort | effect of repeated sterilization cycles on the physical properties of scaling instruments: a scanning electron microscopy study |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4441227/ https://www.ncbi.nlm.nih.gov/pubmed/26028893 |
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