دورية أكاديمية
Comparison of conventional and plant-extract disinfectant solutions on the hardness and color stability of a maxillofacial elastomer after artificial aging.
| العنوان: | Comparison of conventional and plant-extract disinfectant solutions on the hardness and color stability of a maxillofacial elastomer after artificial aging. |
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| المؤلفون: | Guiotti AM; Assistant Professor, Department of Dental Materials and Prosthodontics, Araçatuba Dental School, São Paulo State University (UNESP), São Paulo, Brazil. Electronic address: aimee@foa.unesp.br., Goiato MC; Titular Professor, Department of Dental Materials and Prosthodontics, Araçatuba Dental School, São Paulo State University (UNESP), São Paulo, Brazil., Dos Santos DM; Assistant Professor, Department of Dental Materials and Prosthodontics, Araçatuba Dental School, São Paulo State University (UNESP), São Paulo, Brazil., Vechiato-Filho AJ; Doctoral student, Department of Dental Materials and Prosthodontics, Araçatuba Dental School, São Paulo State University (UNESP), São Paulo, Brazil., Cunha BG; Graduate student, Department of Dental Materials and Prosthodontics, Araçatuba Dental School, São Paulo State University (UNESP), São Paulo, Brazil., Paulini MB; Graduate student, Department of Dental Materials and Prosthodontics, Araçatuba Dental School, São Paulo State University (UNESP), São Paulo, Brazil., Moreno A; Professor, Oral Patology and Surgery Department, School of Dentistry, Federal University of Minas Gerais, Minas Gerais, Brazil., de Almeida MT; Professor, Department of Dermatologic, Infectious and Parasitic Diseases, Medical School, FAMERP, São Paulo, Brazil. |
| المصدر: | The Journal of prosthetic dentistry [J Prosthet Dent] 2016 Apr; Vol. 115 (4), pp. 501-8. Date of Electronic Publication: 2015 Nov 19. |
| نوع المنشور: | Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
| 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: | Hardness* , Prosthesis Coloring*, Disinfectants/*pharmacology , Elastomers/*chemistry, Color ; Humans ; Materials Testing ; Maxillofacial Prosthesis ; Silicone Elastomers ; Time Factors |
| مستخلص: | Statement of Problem: Silicone elastomers undergo physical and chemical degradation with disinfecting solutions. Phytotherapy may be a suitable solution for disinfection. However, its effect on the properties of the silicone material is unknown. Purpose: The purpose of this in vitro study was to evaluate the effect of disinfection with conventional and plant-extract solutions and of artificial aging on the hardness and color stability of a facial silicone associated with pigments and an opacifier. Material and Methods: Four hundred specimens of silicone (MDX4-4210) were fabricated (5×6 mm). Two pigment shades and 1 dry opacifier were combined in the tested material, and 4 groups (n=10) were obtained: colorless (GI), colorless with opacifier (GII), medium pigment with opacifier (GIII), and black pigment with opacifier (GIV). Specimens were subjected to disinfection (30 days) using saline solution, water, and neutral soap (digital friction, 30 seconds), chlorhexidine 4%, Hydrastis canadensis, and Cymbopogon nardus extracts (immersion, 10 minutes). Shore A hardness (ASTM D2240) and color analyses were performed before and after disinfection. Specimens were then exposed to 1008 hours of artificial aging (ASTM 53) and subjected to final hardness and color readings. The results were analyzed with ANOVA and the Tukey significant difference test (α=.05). Results: The opacifier increased the hardness (GII). For GII, the H. canadensis solution and the friction with water and soap promoted significantly reduced hardness; the friction also promoted a reduction in this property for GIV. The GIII was not affected after disinfection. A significant difference was found between the ΔE values of the specimens disinfected with H. canadensis, C. nardus, and chlorhexidine, and specimens subjected to saline solution and neutral soap. Conclusion: The hardness of MDX4-4210 after the experimental procedure was considered clinically acceptable for facial prostheses. All groups showed clinically unacceptable color alterations regardless of the disinfecting solution. (Copyright © 2016 Editorial Council for the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.) |
| المشرفين على المادة: | 0 (Disinfectants) 0 (Elastomers) 0 (Silicone Elastomers) |
| تواريخ الأحداث: | Date Created: 20151126 Date Completed: 20180118 Latest Revision: 20220409 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1016/j.prosdent.2015.09.009 |
| PMID: | 26602149 |
| قاعدة البيانات: | MEDLINE |
Full Text via ClinicalKey 
Full Text Finder | تدمد: | 1097-6841 |
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| DOI: | 10.1016/j.prosdent.2015.09.009 |