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Materiale Plastice
Cite as: Mater. Plast.
https://doi.org/10.37358/Mat.Plast.1964

OSIM Nr. R102356
ISSN Print 0025-5289
ISSN Online 2668-8220
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Materiale Plastice (Mater. Plast.), Year 2019, Volume 56, Issue 3, 505-509

https://doi.org/10.37358/MP.19.3.5218

Dana Cristina Bratu, Vlad Florin Vinatu, Silvia Izabella Pop, Pompiliu Horatiu Petrescu, Catalin Petru Simon, George Popa

Wear Resistance Under High Load Forces of Four Different Polyethylene Terephthalate Glycol Vacuum-Formed Orthodontic Retainers


Abstract:
The aim of our study was to determine the wear resistance of vacuum-formed retainers (VFRs) made out of polyethylene terephthalate glycol (PETG), from four different manufacturers (Essix, Leone, Erkodent, Bio-Art), under high load forces (600 N), for 10000 cycles. Forty thermoplastic sheets were divided in four groups, each group consisting of a set of ten sheets from each manufacturer, thermoformed on two matching study models with an ideal occlusion. The Instron 8874 equipment was used to simulate the accelerated wear of VFR surfaces. The surfaces of the VFRs were visually inspected using a KEYENCE VHX-600 digital microscope, but this proved difficult because of the surface shine. 3D models were generated using a GOM industrial laser surface scanner. Several wear areas were identified, having various degrees of roughness, with no evident tear points or perforations. One-way ANOVA analysis showed no statistically significant differences in net mass loss between the four groups.


Keywords:
wear resistance; polyethylene terephthalate glycol; vacuum-formed retainer; orthodontics

Issue: 2019 Volume 56, Issue 3
Pages: 505-509
Publication date: 2019/9/30
https://doi.org/10.37358/MP.19.3.5218
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Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
Citation Styles
Cite this article as:
BRATU, D.C., VINATU, V.F., POP, S.I., PETRESCU, P.H., SIMON, C.P., POPA, G., Wear Resistance Under High Load Forces of Four Different Polyethylene Terephthalate Glycol Vacuum-Formed Orthodontic Retainers, Mater. Plast., 56(3), 2019, 505-509.

Vancouver
Bratu DC, Vinatu VF, Pop SI, Petrescu PH, Simon CP, Popa G. Wear Resistance Under High Load Forces of Four Different Polyethylene Terephthalate Glycol Vacuum-Formed Orthodontic Retainers. Mater. Plast.[internet]. 2019 Jul;56(3):505-509. Available from: https://doi.org/10.37358/MP.19.3.5218


APA 6th edition
Bratu, D.C., Vinatu, V.F., Pop, S.I., Petrescu, P.H., Simon, C.P. & Popa, G. (2019). Wear Resistance Under High Load Forces of Four Different Polyethylene Terephthalate Glycol Vacuum-Formed Orthodontic Retainers. Materiale Plastice, 56(3), 505-509. https://doi.org/10.37358/MP.19.3.5218


Harvard
Bratu, D.C., Vinatu, V.F., Pop, S.I., Petrescu, P.H., Simon, C.P., Popa, G. (2019). 'Wear Resistance Under High Load Forces of Four Different Polyethylene Terephthalate Glycol Vacuum-Formed Orthodontic Retainers', Materiale Plastice, 56(3), pp. 505-509. https://doi.org/10.37358/MP.19.3.5218


IEEE
D.C. Bratu, V.F. Vinatu, S.I. Pop, P.H. Petrescu, C.P. Simon, G. Popa, "Wear Resistance Under High Load Forces of Four Different Polyethylene Terephthalate Glycol Vacuum-Formed Orthodontic Retainers". Materiale Plastice, vol. 56, no. 3, pp. 505-509, 2019. [online]. https://doi.org/10.37358/MP.19.3.5218


Text
Dana Cristina Bratu, Vlad Florin Vinatu, Silvia Izabella Pop, Pompiliu Horatiu Petrescu, Catalin Petru Simon, George Popa,
Wear Resistance Under High Load Forces of Four Different Polyethylene Terephthalate Glycol Vacuum-Formed Orthodontic Retainers,
Materiale Plastice,
Volume 56, Issue 3,
2019,
Pages 505-509,
ISSN 2668-8220,
https://doi.org/10.37358/MP.19.3.5218.
(https://revmaterialeplastice.ro/Articlegs.asp?ID=5218)
Keywords: wear resistance; polyethylene terephthalate glycol; vacuum-formed retainer; orthodontics


RIS
TY - JOUR
T1 - Wear Resistance Under High Load Forces of Four Different Polyethylene Terephthalate Glycol Vacuum-Formed Orthodontic Retainers
A1 - Bratu, Dana Cristina
A2 - Vinatu, Vlad Florin
A3 - Pop, Silvia Izabella
A4 - Petrescu, Pompiliu Horatiu
A5 - Simon, Catalin Petru
A6 - Popa, George
JF - Materiale Plastice
JO - Mater. Plast.
PB - Materiale Plastice SRL
SN - 2668-8220
Y1 - 2019
VL - 56
IS - 3
SP - 505
EP - 509
UR - https://doi.org/10.37358/MP.19.3.5218
KW - wear resistance
KW - polyethylene terephthalate glycol
KW - vacuum-formed retainer
KW - orthodontics
ER -


BibTex
@article{MatPlast2019P505,
author = {Bratu Dana Cristina and Vinatu Vlad Florin and Pop Silvia Izabella and Petrescu Pompiliu Horatiu and Simon Catalin Petru and Popa George},
title = {Wear Resistance Under High Load Forces of Four Different Polyethylene Terephthalate Glycol Vacuum-Formed Orthodontic Retainers},
journal = {Materiale Plastice},
volume = {56},
number = {3},
pages = {505-509},
year = {2019},
issn = {2668-8220},
doi = {https://doi.org/10.37358/MP.19.3.5218},
url = {https://revmaterialeplastice.ro/Articlegs.asp?ID=5218}
}
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