Results 241 to 250 of about 302,621 (275)

Penetration of pit and fissure sealants into conditioned human enamel in vivo

Archives of Oral Biology, 1973
Abstract Sealant penetration into enamel has been previously observed on extracted teeth. Such penetration is believed significant in the formation of bonds between resin and enamel. Since penetration in vivo might be influenced by the moist oral environment and the presence of dental fluid, a study of the penetration of two sealants into enamel was ...
A J, Gwinnett, L W, Ripa
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The effect of air‐polishing occlusal surfaces on the penetration of fissures by a sealant

International Journal of Paediatric Dentistry, 1992
Summary. An in vitro study was performed to assess the depth of penetration of a fissure sealant after cleaning the occlusal surfaces with an air‐polishing unit, and to compare the results with those obtained after cleaning with pumice and water and after no cleaning.
P R, Brocklehurst, R I, Joshi, S E, Northeast   +2 more
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Penetrativity of sealants: I.

Journal of dental research, 1975
Penetration coefficients of sealants were measured. It was found that the time required for a sealant to penetrate a specific distance is highly dependent on the penetration coefficient of the sealant.
P L, Fan, L W, Seluk, W J, O'Brien
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Human prismless enamel and its influence on sealant penetration

Archives of Oral Biology, 1973
Abstract A lower incidence of sealant retention has been noted for deciduous compared to permanent human teeth. The presence of prismless enamel, common in deciduous teeth, may significantly influence resin retention due to its limited porosity and penetrability, following acid-conditioning.
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Penetrating Sealants for Concrete Bridge Decks—Selection Procedure

Journal of Bridge Engineering, 2006
The major parameter controlling the effectiveness of penetrating sealants as a means of protecting concrete bridge deck surface is the depth of penetration. The factors affecting the depth of sealant penetration are identified both through a fundamental approach and with reference to the literature on penetrating sealants, concrete deterioration ...
Upul Attanayake, Xuemei Liang, Simon Ng, Haluk Aktan   +3 more
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[The effects of the enameloplasty on the penetration and adaptation of sealant].

Zhonghua kou qiang yi xue za zhi = Zhonghua kouqiang yixue zazhi = Chinese journal of stomatology, 2002
To study the mechanism of enameloplasty technique by observing penetration and adaptation of sealant.60 extracted molars were selected and divided into three groups: pits and fissures of the samples in group A were prepared with bur(EST); those in group B were cleaned with cup-shaped brush(CST); group C, as control.The penetration of EST was (83.75 +/-
W, Yu, W, Sun, G, Zhang
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Sealant adaptation and penetration into occlusal fissures.

American journal of dentistry, 2009
To evaluate the adaptation and penetration into occlusal fissures of two different types of fissure sealants.Extracted third molars (n=10) with evident occlusal fissures were cleaned with a pumice/water slurry and randomly divided into two groups and sealed following the manufacturers' directions as follows: Group 1--Embrace fissure sealant (Pulpdent).
Barbara, Kane, Jordan, Karren, Cristina, Garcia-Godoy, Franklin, Garcia-Godoy   +3 more
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Test Method for Aerospace Firewall Sealant Flame Penetration

2017
<div class="section abstract"> <div class="htmlview paragraph">This SAE Aerospace Standard (AS) describes the procedures for the flammability testing of aircraft firewall sealants in accordance with the requirements of FAR Part 25 Sections 25.865, 25.867, 25.1191, and 25.1193.
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Effect of Surface Penetrating Sealant on Wear Rate of Posterior Composite Resins

The Journal of the American Dental Association, 1990
Although posterior composite resins have been improved considerably, secondary caries and wear continue to be a major concern. Recent studies suggested that microstructural defects such as voids and microcracks contribute to a weakened surface. The purpose of this study was to evaluate the effect of an experimental surface-penetrating sealant on the ...
G L, Dickinson, K F, Leinfelder, R B, Mazer, C M, Russell   +3 more
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Effect of surface penetrating sealant on surface texture and microhardness of composite resins

Journal of Biomedical Materials Research, 2000
The application of Fortify (Bisco, Lombard, IL), an unfilled resin, to the surface of composite resin restorations is intended to fill in defects in the surface that persist despite polishing, improve marginal integrity, and increase these materials' resistance to abrasion.
M F, Bertrand, E, Leforestier, M, Muller, L, Lupi-Pégurier, M, Bolla   +4 more
openaire   +2 more sources