Results 91 to 100 of about 1,015,238 (215)

Controlled release properties and final macroporosity of a pectin microspheres–calcium phosphate composite bone cement [PDF]

open access: yes, 2010
The use of calcium phosphate cements (CPC) is restricted by their lack of macroporosity and poor drug release properties. To overcome these two limitations, incorporating degradable polymer microparticles into CPC is an attractive option, as polymer ...
Rodriguez, Frédéric   +10 more
core   +1 more source

Evaluation of retentive strength of four luting cements with stainless steel crowns in primary molars: An in vitro study

open access: yesDental Research Journal, 2018
Background: Stainless steel crown (SSC) is the most reliable restoration for primary teeth with extensive caries. Retention is of great importance for a successful restoration and is provided by various factors such as luting cements.
Iman Parisay, Yegane Khazaei
doaj   +1 more source

Comparison of the Bond Strengths of Zinc Phosphate, Glass-Ionomer, and Compomere Cement for Dowel Cementation [PDF]

open access: yes, 2002
Unatoč dosad mnogim provedenim istraživanjima, ne postoji jedinstvena ocjena koji je cement najbolji za cementiranje konfekcijskih kolčića. Svrha rada bila je ispitati i usporediti retenciju konfekcijskih kolčića cementiranih s trima različitim vrstama ...
Grgurević, Joško   +5 more
core  

Stress Distribution in Luting Cement Layer in Implant Supported Fixed Partial Dentures Using Finite Element Analysis

open access: yesJournal of Islamic Dental Association of Iran, 2014
Background and Aim : Luting cements are necessarily used to increase retention and enhance the marginal seal of fixed partial dentures (FPDs) . In this study, the finite element method (FEM) was used to investigate the effect of different types of luting
Ehsan Ghasemi   +4 more
doaj  

Finite element analysis of stresses in fixed prosthesis and cement layer using a three-dimensional model

open access: yesJournal of Pharmacy and Bioallied Sciences, 2012
Context: To understand the effect of masticatory and parafunctional forces on the integrity of the prosthesis and the underlying cement layer. Aims: The purpose of this study was to evaluate the stress pattern in the cement layer and the fixed prosthesis,
Arunachalam Sangeetha   +3 more
doaj   +1 more source

The Interface Between Zinc Phosphate-Deposited Steel Fibers and Cement Paste

open access: yes, 1990
In an attempt to protect steel fiber reinforcements from corrosion and improve the adherence of cement pastes to steel fiber reinforcement, we deposited a zinc phosphate (Zn-Ph) conversion coating on the surface of the fibers.
Gwen Gray, Toshifumi Sugama
core   +1 more source

Evaluation of Tensile Bond Strength of Metallic Prefabricated Posts Cemented with Different Luting Agents

open access: yesPesquisa Brasileira em Odontopediatria e Clínica Integrada, 2022
Objective: To assess the tensile bond strength of prefabricated metal posts cemented with different luting agents. Material and Methods: Fifty single-rooted endodontically treated human teeth had their crowns cut, mounted into acrylic-resin blocks and ...
Morgana Vicentin   +5 more
doaj  

Evaluation of the effect of fluoride-containing luting cements on titanium and its effect on the shear bond strength

open access: yesContemporary Clinical Dentistry, 2019
Context: The most appropriate luting agent for titanium crowns is yet to be determined. Commonly used cements for luting titanium restorations give off leachable ions which may cause surface interaction with the titanium.
Kondumahanti V N. Avinash   +3 more
doaj   +1 more source

Water chemistry and algal phosphatase activity in zinc-contaminated streams [PDF]

open access: yes, 1990
A study was carried out on algal phosphatase activity and water chemistry in zinc-contaminated streams in the Northern Pennine Orefield. Fourteen field sites were studied; They ranged from low contaminated to high-zinc sites (0.1 mg 1(^-1) to 19.4 mg 1(^-
Bellos, D.
core  

Influence of core-finishing intervals on tensile strength of cast posts-and-cores luted with zinc phosphate cement

open access: yesBrazilian Oral Research, 2012
The core finishing of cast posts-and-cores after luting is routine in dental practice. However, the effects of the vibrations produced by the rotary cutting instruments over the luting cements are not well-documented.
Michele Andrea Lopes Iglesias   +6 more
doaj   +1 more source

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