نتایج جستجو برای: ambient curing

تعداد نتایج: 60988  

2012
F. R. Mahamd Adikan

Refractive index control of benzocyclobutene (BCB 4024-40) is achieved by facilitating different conditions during the thermal curing of BCB film. Refractive index (RI) change of 1.49% is obtained with curing of BCB film using an oven, while the RI change is 0.1% when the BCB is cured using a hotplate. The two different curing methods exhibit a temperature dependent refractive index change of t...

Abstract Background and aim: Over the years, improvments have been done to simplify clinical bonding procedure. One of these material is Transbond™ Plus Self Etching. The aim of this study was to evaluate the effect of saliva contamination and reusing Transbond™ Plus Self Etching Primer (SEP) on shear bond strength of orthodontic brackets. Materials and Methods: Fifty premolars divided into fiv...

Journal: :Journal of Material Cycles and Waste Management 2022

Abstract This study presents the results obtained in compostability tests of organic fraction municipal solid waste (OFMSW) digestate. The final aim was to obtain mature compost without phytotoxic effects. For evaluation composting process, a novel parameter describing performance relative heat generation standardized with initial volatile content (RHGVS 0 ), defined and evaluated at laboratory...

Ali Delnavaz Mohammad Reza Pezeshkian

As regards if curing stops for some time and then resumes again, then strength gain will also stop and reactive, in this study with choose suitable curing conditions after improper first curing (recurring) for normal and silica-fume concrete, Effect of this curing conditions on strength and permeability was investigated. The results from tests such as compressive strength, capillary water absor...

Journal: :The journal of adhesive dentistry 2007
Qasem Alomari Ridwaan Omar Enosakhare Akpata

PURPOSE The aim of this study was to compare postoperative sensitivity following placement of posterior composite restorations using the fast- or step-curing modes of an LED curing light. MATERIALS AND METHODS Thirty patients participated, with each having two homologous contralateral posterior teeth with Class II carious lesions. One restoration was cured using the fast-curing mode of the LE...

Journal: :علوم و تکنولوژی پلیمر 0
مهرداد محمود شکریه اشکان محمود اقدمی

present research involves the complete simulation of pultrusion manufacturing process of glass/polyester composites. for that purpose, the curing process is divided to two liquid and gel-solid phases. the physical characteristics of the resin consist of specific heat, viscosity and coefficient of heat transfer changes with variations of temperature and increasing the degree of curing process (α...

Journal: :Dental materials journal 2005
Nicoleta Ilie Karl-Heinz Kunzelmann Anuradha Visvanathan Reinhard Hickel

The purpose of this study was to analyze the curing behavior of a nanocomposite by assessing in real time the degree of cure at depths of 2 mm and 6 mm. The variation of hardness with depth, shrinkage stress, and curing time until gelation with 16 curing regimes was further investigated using one halogen and three LED curing units. In the present study, it was shown that the soft-start polymeri...

2012
Isil Cekic-Nagas Ferhan Egilmez Gulfem Ergun

PURPOSE The objective of this study was to compare the light transmittance of zirconia in different thicknesses using various light curing units. MATERIALS AND METHODS A total of 21 disc-shaped zirconia specimens (5 mm in diameter) in different thicknesses (0.3, 0.5 and 0.8 mm) were prepared. The light transmittance of the specimens under three different light-curing units (quartz tungsten ha...

2015
Byung Wan Jo Sumit Chakraborty Heon Kim

This data article provides a comparison data for nano-cement based concrete (NCC) and ordinary Portland cement based concrete (OPCC). Concrete samples (OPCC) were fabricated using ten different mix design and their characterization data is provided here. Optimization of curing time using the Weibull distribution model was done by analyzing the rate of change of compressive strength of the OPCC....

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
shaghayegh razavi dental materials research cen ter, department of operative dentistry, faculty of dentistry, babol university of medical sciences, babol-iran. behnaz esmaeili dental materials research cen ter, department of operative dentistry, faculty of dentistry, babol university of medical sciences, babol-iran. hoda amiri mahdiye pakdaman ali bijani social determinants of health research center, babol university of medical sciences, babol-iran.

introduction: discoloration of resin composites is a common reason for replacement of these restorations. the aim of this study was to eva-luate the influence of different light curing de-vices on color stability of a microhybrid resin composite. materials and methods: 80 disc-shaped speci-mens (8 mm in diameter, 2-mm height) were fabricated from filtek z250 resin composite. specimens were divid...

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