Comparison of fracture toughness measurements for zirconia materials using two test methods.

التفاصيل البيبلوغرافية
العنوان:	Comparison of fracture toughness measurements for zirconia materials using two test methods.
المؤلفون:	Jansen JU; Department of Prosthetic Dentistry, Dental Material Unit, Ludwig-Maximilians-University Munich., Lümkemann N; Department of Prosthetic Dentistry, Dental Material Unit, Ludwig-Maximilians-University Munich., Sener B; Periodontics and Cardiology, Clinic for Preventive Dentistry, University of Zurich., Stawarczyk B; Department of Prosthetic Dentistry, Dental Material Unit, Ludwig-Maximilians-University Munich.
المصدر:	Dental materials journal [Dent Mater J] 2019 Oct 02; Vol. 38 (5), pp. 806-812. Date of Electronic Publication: 2019 Aug 22.
نوع المنشور:	Journal Article
اللغة:	English
بيانات الدورية:	Publisher: Japanese Society for Dental Materials and Devices Country of Publication: Japan NLM ID: 8309299 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1881-1361 (Electronic) Linking ISSN: 02874547 NLM ISO Abbreviation: Dent Mater J
أسماء مطبوعة:	Original Publication: Tokyo-to : Japanese Society for Dental Materials and Devices, [1982?-
مواضيع طبية MeSH:	Ceramics* , Dental Porcelain*, Materials Testing ; Reproducibility of Results ; Stress, Mechanical ; Zirconium
مستخلص:	To determine the influence of the fracture toughness (K IC ) methods [single-edge-V-notch-beam (SEVNB) and chevron-notch-beam (CNB)] as well as an optional heat treatment on the K IC of three different zirconia generations (1st: ZI, 3rd: FX, 4th: HT). One hundred and twenty specimens each (3×4×45 mm) were fabricated, sintered, notched (n=360) and half of them heat treated before K IC measurements with 4-point-flexural-strength test. SEM images of the notches were recorded. Highest K IC was found for ZI followed by HT and FX. SEVNB resulted in significantly higher K IC than CNB. Heat treatment resulted in decrease for SEVNB and increase for CNB of K IC (except for FX). Groups tested using CNB showed higher reliability of values (Weibull modulus) than tested using SEVNB. SEM images present crack path and fracture surface. Different zirconia materials lead to different K IC values. The test method and a prior heat treatment showed an influence on the K IC values and their reliability.
فهرسة مساهمة:	Keywords: Chevron-notch-beam; Single-edge-V-notch-beam; Zirconia
المشرفين على المادة:	12001-21-7 (Dental Porcelain) C6V6S92N3C (Zirconium) S38N85C5G0 (zirconium oxide)
تواريخ الأحداث:	Date Created: 20190823 Date Completed: 20191022 Latest Revision: 20191022
رمز التحديث:	20240628
DOI:	10.4012/dmj.2018-361
PMID:	31434833
قاعدة البيانات:	MEDLINE

الوصف
تدمد:	1881-1361
DOI:	10.4012/dmj.2018-361