gel

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Related to APF gel: fluoride application

gel:

see colloidcolloid
[Gr.,=gluelike], a mixture in which one substance is divided into minute particles (called colloidal particles) and dispersed throughout a second substance. The mixture is also called a colloidal system, colloidal solution, or colloidal dispersion.
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gel

[jel]
(chemistry)
A two-phase colloidal system consisting of a solid and a liquid in more solid form than a sol.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

gel

A semisolid material, somewhat elastic, composed of matter in a colloidal state that does not dissolve; remains suspended in a solvent. Also see cement gel.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Table 1--Fluoride retention in saliva (ppm) after application of APF gel with a toothbrush or tray.
Based on the literature, which reports an inhibitory action of the demineralisation process by APF [Mellberg et al., 1988; Delbem and Cury, 2002], and founded on the dissolution mechanism of enamel through treatment with APF, a significantly greater effect of resistance to demineralisation was expected from the APF gel in relation to the NaF gel.
The non-immediate effect of potassium oxalate could be compared to the APF gel agent.