دورية أكاديمية
أعرض في EDS

Effect of nanoscale particles incorporation on microhardness of polymers for oral prosthesis.

التفاصيل البيبلوغرافية
العنوان: Effect of nanoscale particles incorporation on microhardness of polymers for oral prosthesis.
المؤلفون: Goiato MC; Department of Dental Materials and Prosthodontics, Aracatuba Dental School, Sao Paulo State University, Aracatuba, Sao Paulo, Brazil., Zuccolotti BC; Department of Dental Materials and Prosthodontics, Aracatuba Dental School, Sao Paulo State University, Aracatuba, Sao Paulo, Brazil., Moreno A; Department of Oral Surgery, Pathology and Dental Clinical, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil., Vechiato Filho AJ; Department of Dental Materials and Prosthodontics, Aracatuba Dental School, Sao Paulo State University, Aracatuba, Sao Paulo, Brazil., Paulini MB; Department of Dental Materials and Prosthodontics, Aracatuba Dental School, Sao Paulo State University, Aracatuba, Sao Paulo, Brazil., Santos DM; Department of Dental Materials and Prosthodontics, Aracatuba Dental School, Sao Paulo State University, Aracatuba, Sao Paulo, Brazil.
المصدر: Contemporary clinical dentistry [Contemp Clin Dent] 2016 Jul-Sep; Vol. 7 (3), pp. 307-11.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Medknow Publications and Media Pvt. Ltd Country of Publication: India NLM ID: 101552967 Publication Model: Print Cited Medium: Print ISSN: 0976-237X (Print) Linking ISSN: 09762361 NLM ISO Abbreviation: Contemp Clin Dent Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Mumbai : Medknow Publications and Media Pvt. Ltd.
مستخلص: Objectives: This study aimed to evaluate the influence of the incorporation of pigments on surface hardness of four acrylic resins subjected to thermocycling and analyze their elemental composition using energy dispersive X-ray spectroscopy (EDS).
Materials and Methods: Twenty-one discs of each resin were fabricated, whereas seven had no additive, seven had 3% of nanoscale pigments and last seven had 10% of them. The percentage was obtained by measuring the total weight of each resin disc. Besides, seven discs composed by only nanoscale pigments were also fabricated, totalizing 91 discs. The pigment was weighed by using an analytical balance (BEL Analytical Equipment, SP, Brazil). The surface hardness was measured through a hardness tester machine before and after thermocycling (5-55°C, for 2000 cycles). Data were analyzed by ANOVA and Tukey's test (P < 0.05). The chemical composition of the discs composed only by nanoscale pigments was analyzed with EDS test.
Results: Hardness of all resins decreased after thermocycling. The lowest values were observed on the discs with 3% of nanoscale pigments and discs fabricated only with them. EDS showed the presence of titanium dioxide.
Conclusion: Discs with 7% of pigments (after thermocycling) showed higher hardness values.
References: J Prosthet Dent. 2013 Aug;110(2):101-6. (PMID: 25564691)
Biomed Mater Eng. 2015;26 Suppl 1:S35-43. (PMID: 26406023)
Dent Mater. 2011 Oct;27(10 ):972-82. (PMID: 21774976)
Braz Oral Res. 2014;28:null. (PMID: 24878668)
Braz Oral Res. 2009 Jul-Sep;23 (3):263-7. (PMID: 19893960)
Gerodontology. 2012 Jun;29(2):e710-4. (PMID: 21955302)
J Prosthet Dent. 2014 Dec;112(6):1513-22. (PMID: 24998324)
J Prosthet Dent. 2009 Aug;102(2):115-22. (PMID: 19643225)
J Clin Diagn Res. 2013 Dec;7(12):3051-3. (PMID: 24551725)
J Prosthodont Res. 2010 Jul;54(3):123-7. (PMID: 20083446)
J Nanosci Nanotechnol. 2011 Jun;11(6):4923-8. (PMID: 21770123)
Dent Clin North Am. 1996 Jan;40(1):71-84. (PMID: 8635627)
Gerodontology. 2008 Dec;25(4):237-44. (PMID: 18328073)
Dent Mater J. 2008 Jan;27(1):139-44. (PMID: 18309623)
Gerodontology. 2012 Jun;29(2):e155-60. (PMID: 21070346)
Dent Mater. 2008 May;24(5):708-13. (PMID: 17888507)
J Dent. 2010;38 Suppl 2:e100-5. (PMID: 20472021)
Gerodontology. 2012 Jun;29(2):e1019-23. (PMID: 22225509)
J Prosthodont. 2008 Feb;17(2):125-9. (PMID: 17971120)
Braz Dent J. 2008;19(3):204-8. (PMID: 18949291)
فهرسة مساهمة: Keywords: Acrylic resins; denture bases; geriatrics
تواريخ الأحداث: Date Created: 20160916 Date Completed: 20160916 Latest Revision: 20201001
رمز التحديث: 20240628
مُعرف محوري في PubMed: PMC5004541
DOI: 10.4103/0976-237X.188543
PMID: 27630492
قاعدة البيانات: MEDLINE
الوصف
تدمد:0976-237X
DOI:10.4103/0976-237X.188543