دورية أكاديمية
Analysis of physical properties of facial silicones with different pigmentations submitted to nonthermal plasma treatment and accelerated aging.
| العنوان: | Analysis of physical properties of facial silicones with different pigmentations submitted to nonthermal plasma treatment and accelerated aging. |
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| المؤلفون: | Paulini MB; Postgraduate student, Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, Araçatuba, Sao Paulo, Brazil., Micheline Dos Santos D; Professor, Department of Dental Materials and Prosthodontics and Oral Oncology Center, São Paulo State University (UNESP), School of Dentistry, Araçatuba, Sao Paulo, Brazil., de Moraes Melo Neto CL; Postgraduate student, Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, Araçatuba, Sao Paulo, Brazil., Bitencourt SB; Postgraduate student, Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, Araçatuba, Sao Paulo, Brazil., Freitas da Silva EV; Postgraduate student, Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, Araçatuba, Sao Paulo, Brazil., Pereira de Caxias F; Postgraduate student, Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, Araçatuba, Sao Paulo, Brazil., Ribeiro RP; Postgraduate student, Technological Plasma Laboratory, Experimental Campus of Sorocaba, São Paulo State University (UNESP), Sorocaba, Sao Paulo, Brazil., Rangel EC; Professor, Technological Plasma Laboratory, Experimental Campus of Sorocaba, São Paulo State University (UNESP), Sorocaba, Sao Paulo, Brazil., Sônego MV; Postgraduate student, Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, Araçatuba, Sao Paulo, Brazil., Goiato MC; Professor, Department of Dental Materials and Prosthodontics and Oral Oncology Center, São Paulo State University (UNESP), School of Dentistry, Araçatuba, Sao Paulo, Brazil. Electronic address: m.goiato@unesp.br. |
| المصدر: | The Journal of prosthetic dentistry [J Prosthet Dent] 2020 Dec; Vol. 124 (6), pp. 815.e1-815.e7. Date of Electronic Publication: 2020 Oct 23. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Mosby-Year Book Country of Publication: United States NLM ID: 0376364 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-6841 (Electronic) Linking ISSN: 00223913 NLM ISO Abbreviation: J Prosthet Dent Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: St. Louis Mo : Mosby-Year Book Original Publication: St. Louis, Mosby. |
| مواضيع طبية MeSH: | Maxillofacial Prosthesis*, Materials Testing ; Pigmentation ; Plasma ; Silicones ; Surface Properties |
| مستخلص: | Statement of Problem: Exposure of silicone prostheses to environmental factors can alter their properties, affecting longevity. However, whether nonthermal plasma (NTP) can prevent these alterations is unclear. Purpose: The purpose of this in vitro study was to evaluate the surface roughness (Ra), sorption, solubility, and color stability (ΔE Material and Methods: One hundred sixty specimens were fabricated and distributed into 16 groups (n=10) as per the silicone, pigmentation, and NTP coating. The NTP was applied, and the Ra, sorption, solubility, and ΔE Results: NTP generated an increase in roughness after aging, regardless of pigmentation or silicone. A-120 silicone without NTP showed a reduction in roughness after aging, regardless of pigmentation. For sorption and solubility, the bronze pigmentation (for A-120 and MDX4-4210) presented the smallest results after NTP treatment. For MDX4-4210 with pink pigmentation and NTP, sorption decreased and solubility increased. For A-120 with pink pigmentation and NTP, sorption and solubility increased. Sorption was reduced in all situations, except for A-120 with pink pigmentation, which increased. Regardless of the silicone used, solubility was reduced after NTP for bronze pigmentation. For A-120 and MDX4-4210 with pink pigmentation and NTP, the solubility increased. For both pigmentations, the NTP treatment promoted lower color alteration only for the A-120 silicone after accelerated aging (within the acceptability threshold). Conclusions: The NTP protocol of this study, which was applied to facial silicones, generated inconsistent results between the evaluated properties. Therefore, the NTP protocol used does not seem to be ideal for the treatment of silicone surfaces after aging. (Copyright © 2020 Editorial Council for the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.) |
| المشرفين على المادة: | 0 (Silicones) |
| تواريخ الأحداث: | Date Created: 20201203 Date Completed: 20201208 Latest Revision: 20201214 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1016/j.prosdent.2020.05.034 |
| PMID: | 33268070 |
| قاعدة البيانات: | MEDLINE |
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Full Text Finder | تدمد: | 1097-6841 |
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| DOI: | 10.1016/j.prosdent.2020.05.034 |