The Influence of Different Cleaning Protocols on the Surface Roughness of Orthodontic Retainers

Thermoplastic materials are sensitive to humidity, temperature variations, enzyme activities, and cyclic loading. All these factors can cause changes to the mechanical properties of the material. The aim of this study was to determine the influence of different cleaning protocols on the surface roug...

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Main Authors: Luka Šimunović, Tadeja Blagec, Senka Meštrović
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/3/1319
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author Luka Šimunović
Tadeja Blagec
Senka Meštrović
author_facet Luka Šimunović
Tadeja Blagec
Senka Meštrović
author_sort Luka Šimunović
collection DOAJ
description Thermoplastic materials are sensitive to humidity, temperature variations, enzyme activities, and cyclic loading. All these factors can cause changes to the mechanical properties of the material. The aim of this study was to determine the influence of different cleaning protocols on the surface roughness of orthodontic retainers. Samples of two brands of polyethylene terephthalate glycol (PET-G) material were exposed to four cleaning protocols: Corega (alkaline peroxide tablets), Toothbrush, Corega + toothbrush, Toothbrush + toothpaste, and Control. Measurement of the surface roughness of the sample on both the top and bottom side was carried out before and after cleaning. There was no statistical difference between the final values of the measured parameters. However, looking at the extent of the change in surface roughness, there was a statistically significant difference in the upper side of the Corega + toothbrush group between Materials A and B. This suggests that there was a greater change in the roughness of material A (Erkodur), given that the mean change in roughness of Material A was Ra 0.047, whereas the mean change in roughness of Material B was Ra 0.022. Almost all the tested cleaning procedures significantly increased the surface roughness of the PET-G retainer material. Of all the methods, the Corega tablets had the lowest influence on surface roughness.
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spelling doaj.art-50a32c201f7a40c498349b85775f801d2023-11-16T16:03:43ZengMDPI AGApplied Sciences2076-34172023-01-01133131910.3390/app13031319The Influence of Different Cleaning Protocols on the Surface Roughness of Orthodontic RetainersLuka Šimunović0Tadeja Blagec1Senka Meštrović2Department of Orthodontics, School of Dental Medicine Zagreb, University of Zagreb, 10000 Zagreb, CroatiaDepartment of Orthodontics, School of Dental Medicine Zagreb, University of Zagreb, 10000 Zagreb, CroatiaDepartment of Orthodontics, School of Dental Medicine Zagreb, University of Zagreb, 10000 Zagreb, CroatiaThermoplastic materials are sensitive to humidity, temperature variations, enzyme activities, and cyclic loading. All these factors can cause changes to the mechanical properties of the material. The aim of this study was to determine the influence of different cleaning protocols on the surface roughness of orthodontic retainers. Samples of two brands of polyethylene terephthalate glycol (PET-G) material were exposed to four cleaning protocols: Corega (alkaline peroxide tablets), Toothbrush, Corega + toothbrush, Toothbrush + toothpaste, and Control. Measurement of the surface roughness of the sample on both the top and bottom side was carried out before and after cleaning. There was no statistical difference between the final values of the measured parameters. However, looking at the extent of the change in surface roughness, there was a statistically significant difference in the upper side of the Corega + toothbrush group between Materials A and B. This suggests that there was a greater change in the roughness of material A (Erkodur), given that the mean change in roughness of Material A was Ra 0.047, whereas the mean change in roughness of Material B was Ra 0.022. Almost all the tested cleaning procedures significantly increased the surface roughness of the PET-G retainer material. Of all the methods, the Corega tablets had the lowest influence on surface roughness.https://www.mdpi.com/2076-3417/13/3/1319retainerPET-Gcleaningsurface roughnessdentistryorthodontics
spellingShingle Luka Šimunović
Tadeja Blagec
Senka Meštrović
The Influence of Different Cleaning Protocols on the Surface Roughness of Orthodontic Retainers
Applied Sciences
retainer
PET-G
cleaning
surface roughness
dentistry
orthodontics
title The Influence of Different Cleaning Protocols on the Surface Roughness of Orthodontic Retainers
title_full The Influence of Different Cleaning Protocols on the Surface Roughness of Orthodontic Retainers
title_fullStr The Influence of Different Cleaning Protocols on the Surface Roughness of Orthodontic Retainers
title_full_unstemmed The Influence of Different Cleaning Protocols on the Surface Roughness of Orthodontic Retainers
title_short The Influence of Different Cleaning Protocols on the Surface Roughness of Orthodontic Retainers
title_sort influence of different cleaning protocols on the surface roughness of orthodontic retainers
topic retainer
PET-G
cleaning
surface roughness
dentistry
orthodontics
url https://www.mdpi.com/2076-3417/13/3/1319
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