Results 101 to 110 of about 8,421 (259)

Optimal cement paste yield stress for the production of stable cement foams [PDF]

open access: yesCement and Concrete Research (2019) 120, pp 142-151, 2019
Production of morphology-controlled cement foams remains challenging, mainly due to bubble stability issues during cement setting. The use of cement paste with high yield stress is expected to promote stability by damping intrinsic bubble kinetics. Here we show however that for given W/C ratio, fresh foam stability can be achieved instead by decreasing
arxiv  

The effect of undrained heating on a fluid-saturated hardened cement paste [PDF]

open access: yes, 2008
The effect of undrained heating on volume change and induced pore pressure increase is an important point to properly understand the behaviour and evaluate the integrity of an oil well cement sheath submitted to rapid temperature changes. This thermal pressurization of the pore fluid is due to the discrepancy between the thermal expansion coefficients ...
arxiv   +1 more source

Mineral Trioxide Aggregate Material Use in Endodontic Treatment: A Review of the Literature [PDF]

open access: yes, 2008
Objective The purpose of this paper was to review the composition, properties, biocompatibility, and the clinical results involving the use of mineral trioxide aggregate (MTA) materials in endodontic treatment.
Berzins, David W.   +3 more
core   +1 more source

Influência da espatulação de dois cimentos à base de óxido de zinco e eugenol na obturação de canais laterais [PDF]

open access: yes, 2002
The objective of this research was to evaluate, in vitro, the importance of the correct manipulation of endodontic sealers, correlating it with flow rate and with the consequent obturation of root canals.
Barbizam, João Vicente Baroni   +4 more
core   +3 more sources

Radiographic assessment of the peri‐implant site

open access: yesPeriodontology 2000, Volume 95, Issue 1, Page 70-86, June 2024.
Abstract While peri‐implant mucositis relies solely on clinical parameters, radiological assessment becomes indispensable for diagnosing peri‐implantitis. Intraoral radiography, with its simplicity of application, low radiation exposure, and adequate representation of peri‐implant structures, stands out as the standard of care for both immediate and ...
Philipp Sahrmann   +4 more
wiley   +1 more source

Evaluation of the antimicrobial activity of each component in Grossman’s sealer Avaliação da atividade antimicrobiana de cada um dos componentes do cimento de Grossman

open access: yesBrazilian Oral Research, 2006
The antimicrobial activity of Grossman’s sealer and its components was evaluated on 13 different strains using the double layer well-diffusion method. Results revealed that Grossman’s sealer presented antimicrobial activity against all the tested strains.
Ricardo Novak Savioli   +3 more
doaj   +1 more source

Molecular dynamics modeling of the effects of cementation on the acoustical properties of granular sedimentary rocks [PDF]

open access: yesarXiv, 2006
The incidence of cementation processes on the acoustical properties of sands is studied via molecular dynamics simulation techniques. In our simulations, we consider samples with different degrees of compaction and cementing materials with distinct elastic properties.
arxiv  

Sealing ability of materials used as protective cervical barrier in internal tooth bleaching [PDF]

open access: yes, 2017
The use of a protective cervical barrier (PCB) is very well established to perform a safe internal bleaching; however, there is still no consensus on which material has the best sealing ability. Objective: This in vitro study aimed to evaluate the apical
Honório, Heitor Marques   +5 more
core   +2 more sources

A specific surgical procedure to remove the apices in the upper jaw

open access: yesClinical Case Reports, Volume 12, Issue 5, May 2024.
Key Clinical Message This clinical case report focuses on a case of surgery performed on a patient with the aim of cutting the dental apices in the patient's upper jaw. Mineral trioxide aggregate (MTA) was used as a filling material, and monitoring the condition showed that the operation was successful.
Issa Saad   +9 more
wiley   +1 more source

POLYTETRAFLUOROETYLENE TAPE AS TEMPORARY RESTORATIVE MATERIAL: A FLUID FILTRATION STUDY ⃰

open access: yesJournal of Istanbul University Faculty of Dentistry, 2015
Purpose: The purpose of this study was to compare the sealing ability of temporary restorative materials at 24 hrs and 1 week. Materials and Methods: Endodontic access cavities were prepared in 56 extracted lower incisor-teeth and divided into 5 ...
Keziban Olcay   +3 more
doaj   +1 more source

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