Force degradation study on aligner plates immersed in various solutions
Background/purpose: The strength of aligners themselves has a high decay rate and is susceptible to accelerated degradation in the environment. The purpose of this study was to compare three types of invisible aligner films after being immersed in coffee, tea, cola, and red wine for seven days and t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-10-01
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| Series: | Journal of Dental Sciences |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1991790223001927 |
| _version_ | 1797672742858784768 |
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| author | Shou-Min Chen Tsui-Hsein Huang Chun-Te Ho Chia-Tze Kao |
| author_facet | Shou-Min Chen Tsui-Hsein Huang Chun-Te Ho Chia-Tze Kao |
| author_sort | Shou-Min Chen |
| collection | DOAJ |
| description | Background/purpose: The strength of aligners themselves has a high decay rate and is susceptible to accelerated degradation in the environment. The purpose of this study was to compare three types of invisible aligner films after being immersed in coffee, tea, cola, and red wine for seven days and to evaluate the changes in their strengths. Materials and methods: Three types of invisible aligner plates with a thickness of 0.75 mm, i.e., Duran T (polyethylene terephthalate glycol, PETG), Biolon (polyethylene terephthalate, PET), and Zendura FLX (polyurethane, PU), were soaked in artificial saliva and four drinks (coffee, tea, cola, red wine) for 1, 4, and 7 days. The strength test was performed by using the three-point bending test method. The residual strength ratio for the same type of invisible correction film at the same time was separately recorded. The independent t-test was used to indicate significant differences at P < 0.05. Results: The Biolon invisible correction film soaked in cola, red wine and artificial saliva showed significant differences on the 1st and 4th days (P < 0.05). The Duran T invisible correction film soaked in coffee and artificial saliva showed significant differences on the first day (P < 0.05). The Zendura FLX invisible correction film had a waterproof layer on the surface, and there was no significant difference between soaking in any drink and soaking in saliva (P > 0.05). Conclusion: Invisible correction films with different ingredients soaked in solutions show a strength decay phenomenon, except for those with TPU ingredients. |
| first_indexed | 2024-03-11T21:34:40Z |
| format | Article |
| id | doaj.art-3ee35acd0ce94a6ba3e13dc1ca66f49e |
| institution | Directory Open Access Journal |
| issn | 1991-7902 |
| language | English |
| last_indexed | 2024-03-11T21:34:40Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Dental Sciences |
| spelling | doaj.art-3ee35acd0ce94a6ba3e13dc1ca66f49e2023-09-27T04:42:30ZengElsevierJournal of Dental Sciences1991-79022023-10-0118418451849Force degradation study on aligner plates immersed in various solutionsShou-Min Chen0Tsui-Hsein Huang1Chun-Te Ho2Chia-Tze Kao3School of Dentistry, College of Oral Medicine, Chung Shan Medical University, Taichung, Taiwan; Orthodontic Department, Chung Shan Medical University Hospital, Taichung, TaiwanSchool of Dentistry, College of Oral Medicine, Chung Shan Medical University, Taichung, Taiwan; Dental Department, Chung Shan Medical University Hospital, Taichung, TaiwanSchool of Dentistry, College of Oral Medicine, Chung Shan Medical University, Taichung, Taiwan; Orthodontic Department, Chung Shan Medical University Hospital, Taichung, TaiwanOrthodontic Department, Chung Shan Medical University Hospital, Taichung, Taiwan; Dental Department, Chung Shan Medical University Hospital, Taichung, Taiwan; Corresponding author. Shan Medical University Hospital, School of Dentistry, College of Oral Medicine, Chung Shan Medical University, Department of Orthodontics, Chung, 110, Chien Kuo N Road, Taichung, 00407, Taiwan.Background/purpose: The strength of aligners themselves has a high decay rate and is susceptible to accelerated degradation in the environment. The purpose of this study was to compare three types of invisible aligner films after being immersed in coffee, tea, cola, and red wine for seven days and to evaluate the changes in their strengths. Materials and methods: Three types of invisible aligner plates with a thickness of 0.75 mm, i.e., Duran T (polyethylene terephthalate glycol, PETG), Biolon (polyethylene terephthalate, PET), and Zendura FLX (polyurethane, PU), were soaked in artificial saliva and four drinks (coffee, tea, cola, red wine) for 1, 4, and 7 days. The strength test was performed by using the three-point bending test method. The residual strength ratio for the same type of invisible correction film at the same time was separately recorded. The independent t-test was used to indicate significant differences at P < 0.05. Results: The Biolon invisible correction film soaked in cola, red wine and artificial saliva showed significant differences on the 1st and 4th days (P < 0.05). The Duran T invisible correction film soaked in coffee and artificial saliva showed significant differences on the first day (P < 0.05). The Zendura FLX invisible correction film had a waterproof layer on the surface, and there was no significant difference between soaking in any drink and soaking in saliva (P > 0.05). Conclusion: Invisible correction films with different ingredients soaked in solutions show a strength decay phenomenon, except for those with TPU ingredients.http://www.sciencedirect.com/science/article/pii/S1991790223001927AlignerImmerseForce decaySolution |
| spellingShingle | Shou-Min Chen Tsui-Hsein Huang Chun-Te Ho Chia-Tze Kao Force degradation study on aligner plates immersed in various solutions Journal of Dental Sciences Aligner Immerse Force decay Solution |
| title | Force degradation study on aligner plates immersed in various solutions |
| title_full | Force degradation study on aligner plates immersed in various solutions |
| title_fullStr | Force degradation study on aligner plates immersed in various solutions |
| title_full_unstemmed | Force degradation study on aligner plates immersed in various solutions |
| title_short | Force degradation study on aligner plates immersed in various solutions |
| title_sort | force degradation study on aligner plates immersed in various solutions |
| topic | Aligner Immerse Force decay Solution |
| url | http://www.sciencedirect.com/science/article/pii/S1991790223001927 |
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