Results 51 to 60 of about 111,237 (217)

Measurement of elastic modulus and Vickers hardness of surround bone implant using dynamic microindentation--parameters definition.

Brazilian Dental Journal, 2014
The clinical performance of dental implants is strongly defined by biomechanical principles. The aim of this study was to quantify the Vicker's hardness (VHN) and elastic modulus (E) surround bone to dental implant in different regions, and to discuss ...
P. Soares, Sarah Arantes Nunes, S. Franco, R. Pires, D. Zanetta-Barbosa, C. Soares   +5 more
semanticscholar   +1 more source

Developing definitions of conventional hardness tests for use by National Metrology Institutes

Measurement: Sensors, 2021
This paper describes the process used by the Consultative Committee for Mass and Related Quantities - Working Group on Hardness (CCM-WGH) of the International Committee of Weights and Measures (CIPM) to develop international definitions of the ...
S. Low, A. Germak, A. Knott, R. Machado, J. Song   +4 more
doaj  

PENGARUH JUS JERUK DAN MINUMAN BERKARBONASI TERHADAP KEKERASAN PERMUKAAN RESIN KOMPOSIT

ODONTO: Dental Journal, 2017
Background: Orange juice and Carbonat drink contains an acid agent which can affect the surface hardness of composite resin. Changes of surface hardness of composite resin is caused by infiltration of water containing the acid agent that affect the ...
Rusna Fiki Kafalia, Muh. Dian Firdausy, Arlina Nurhapsari   +2 more
doaj   +1 more source

Evaluation the Vickers Hardness of Denture Base Materials

, 2016
The aim of this study was to evaluate the Vickers Hardness of four different denture base materials. Four different denture base materials were used in this study: Heat-cured pink acrylic resin, self-cured acrylic resin, heat-cured clear acrylic resin ...
Z. Duymus, A. Özdoğan, Hamza Ulu, Ozlem Ozbayram   +3 more
semanticscholar   +1 more source

Effect of gallic acid addition on some mechanical properties of self-adhesive resin cements

Brazilian Oral Research
Self-adhesive resin cements (RCs) activate matrix metalloproteinase (MMP) and cathepsin-related collagen degradation, and gallic acid (GA) inhibits the activity of both MMPs and cysteine cathepsins.
Bebek Serra OGUZ AHMET, Gulsum SAYIN OZEL, Mustafa Murat MUTLUAY, Arzu TEZVERGIL MUTLUAY   +3 more
doaj   +1 more source

Influence of polymerization time and depth of cure of resin composites determined by Vickers hardness

Dental Research Journal, 2012
Background: Adequate polymerization of resin composites could be considered as a crucial factor in obtaining good clinical performance, particularly in stress-bearing areas.
Marco Lombardini, Marco Chiesa, Andrea Scribante, Marco Colombo, Claudio Poggio   +4 more
doaj   +1 more source

Evaluation of Polymerization Efficacy in Composite Resins via FT-IR Spectroscopy and Vickers Microhardness Test

Journal of Dental Research, Dental Clinics, Dental Prospects, 2015
Background and aims. Polymerization efficacy affects the properties and performance of composite resin restorations.The purpose of this study was to evaluate the effectiveness of polymerization of two micro-hybrid, two nano-hybrid and one nano-filled ...
T. Jafarzadeh, M. Erfan, M. Behroozibakhsh, M. Fatemi, Reza Masaeli, Yashar Rezaei, H. Bagheri, Yasaman Erfan   +7 more
semanticscholar   +1 more source

Estimation of the Yield Stress of Stainless Steel from the Vickers Hardness Taking Account of the Residual Stress

, 2013
In this paper, a method that uses the Vickers hardness to estimate the yield stress of a metallic material with taking account of residual stress is proposed.
O. Takakuwa, Yusuke Kawaragi, H. Soyama
semanticscholar   +1 more source

Pengaruh Perendaman Minuman Isotonik Terhadap Kekerasan Permukaan Email Gigi

Cakradonya Dental Journal
Demineralization is the process of losing minerals in tooth enamel when the enamel is in a pH environment below 5.5. Email is the outer layer of the crown anatomy, including the hardest part of the body could dissolved when consume isotonic drinks are ...
Sari Dewiyani, Ratih Widyastuti, Fauzi Saeful Rohman   +2 more
doaj   +1 more source

Hardness relationship between eNM3A10 and conventional hardness scales

Measurement: Sensors, 2021
Small ball rebound hardness eNM3A10 is a next-generation rebound hardness test with features not existing in conventional rebound hardness tests: reduced mass effect of hardness and satisfying the similarity rule of hardness (Minimum thickness of steel ...
Takashi Yamamoto, Masayuki Yamamoto, Kensuke Miyahara   +2 more
doaj