The force effects of two types of polyethylene terephthalate glyc-olmodified clear aligners immersed in artificial saliva

Abstract Numerous factors can influence the force exerted by clear aligners on teeth. This study aimed to investigate the stability of the force delivered by two different material appliances. 90 clear aligners with 2 materials and three different activations were designed and fabricated. Then, a de...

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Autores principales:	Biao Xiang, Xingxing Wang, Gang Wu, Yichen Xu, Menghan Wang, Yanjing Yang, Qingyu Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d52581c103a24a70a06c2312cb213040
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spelling	oai:doaj.org-article:d52581c103a24a70a06c2312cb2130402021-12-02T15:42:59ZThe force effects of two types of polyethylene terephthalate glyc-olmodified clear aligners immersed in artificial saliva10.1038/s41598-021-89425-82045-2322https://doaj.org/article/d52581c103a24a70a06c2312cb2130402021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89425-8https://doaj.org/toc/2045-2322Abstract Numerous factors can influence the force exerted by clear aligners on teeth. This study aimed to investigate the stability of the force delivered by two different material appliances. 90 clear aligners with 2 materials and three different activations were designed and fabricated. Then, a device was employed to measure the force generated by the two types of PET-G material appliances immersed in artificial saliva for 0, 3, 7, 10, 14 days. Scanning electron microscopy was applied to observe the morphologic alterations on the aligner surfaces, respectively. The forces generated by different activation appliance exhibited differently, 0.0 mm < 0.1 mm < 0.2 mm. In addition, increasing the immersion times and the orthodontic force also decreased, but the forces decreased differently. Compared with the forces of conventional PETG appliances with 0.20 mm activation, the modified PETG appliances with the same activation exhibited significantly higher mean force. When comparing the mean force for modified PETG appliances after 10 and 14 days with conventional PETG appliances, the delivery forces exhibited significant differences (P < 0.05). The force delivered by both materials decreased obviously following artificial saliva immersion, and the force generated by modified aligners exhibited better stability than conventional aligners.Biao XiangXingxing WangGang WuYichen XuMenghan WangYanjing YangQingyu WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Biao Xiang Xingxing Wang Gang Wu Yichen Xu Menghan Wang Yanjing Yang Qingyu Wang The force effects of two types of polyethylene terephthalate glyc-olmodified clear aligners immersed in artificial saliva
description	Abstract Numerous factors can influence the force exerted by clear aligners on teeth. This study aimed to investigate the stability of the force delivered by two different material appliances. 90 clear aligners with 2 materials and three different activations were designed and fabricated. Then, a device was employed to measure the force generated by the two types of PET-G material appliances immersed in artificial saliva for 0, 3, 7, 10, 14 days. Scanning electron microscopy was applied to observe the morphologic alterations on the aligner surfaces, respectively. The forces generated by different activation appliance exhibited differently, 0.0 mm < 0.1 mm < 0.2 mm. In addition, increasing the immersion times and the orthodontic force also decreased, but the forces decreased differently. Compared with the forces of conventional PETG appliances with 0.20 mm activation, the modified PETG appliances with the same activation exhibited significantly higher mean force. When comparing the mean force for modified PETG appliances after 10 and 14 days with conventional PETG appliances, the delivery forces exhibited significant differences (P < 0.05). The force delivered by both materials decreased obviously following artificial saliva immersion, and the force generated by modified aligners exhibited better stability than conventional aligners.
format	article
author	Biao Xiang Xingxing Wang Gang Wu Yichen Xu Menghan Wang Yanjing Yang Qingyu Wang
author_facet	Biao Xiang Xingxing Wang Gang Wu Yichen Xu Menghan Wang Yanjing Yang Qingyu Wang
author_sort	Biao Xiang
title	The force effects of two types of polyethylene terephthalate glyc-olmodified clear aligners immersed in artificial saliva
title_short	The force effects of two types of polyethylene terephthalate glyc-olmodified clear aligners immersed in artificial saliva
title_full	The force effects of two types of polyethylene terephthalate glyc-olmodified clear aligners immersed in artificial saliva
title_fullStr	The force effects of two types of polyethylene terephthalate glyc-olmodified clear aligners immersed in artificial saliva
title_full_unstemmed	The force effects of two types of polyethylene terephthalate glyc-olmodified clear aligners immersed in artificial saliva
title_sort	force effects of two types of polyethylene terephthalate glyc-olmodified clear aligners immersed in artificial saliva
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d52581c103a24a70a06c2312cb213040
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The force effects of two types of polyethylene terephthalate glyc-olmodified clear aligners immersed in artificial saliva

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