gel

gel (jel)

1. a colloid in which the solid disperse phase forms a network in combination with the fluid continuous phase, resulting in a viscous semirigid sol.

2. to form such a compound or any similar semi-solid material.

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aluminum hydroxide gel  a suspension of aluminum hydroxide and hydrated oxide used as a gastric antacid, especially in the treatment of peptic ulcer, and in the treatment of phosphate nephrolithiasis.

aluminum phosphate gel  an aqueous suspension of aluminum phosphate, used as an antacid and to reduce excretion of phosphates in the feces.

APF gel  sodium fluoride and phosphoric acid g.

basic aluminum carbonate gel  an aluminum hydroxide–aluminum carbonate gel, used as an antacid, for treatment of hyperphosphatemia in renal insufficiency, and to prevent phosphate urinary calculi.

dried aluminum hydroxide gel  an amorphous form of aluminum hydroxide prepared by drying aluminum hydroxide gel at low temperature; used as an antacid.

sodium fluoride and phosphoric acid gel  a gel containing sodium fluoride, hydrofluoric acid, and phosphoric acid; applied topically to the teeth as a dental caries prophylactic.

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gel (jl)

n.

A colloid in which the disperse phase combines with the dispersion medium to produce a semisolid material.

v.

1. To become a gel.

2. To convert a sol into a gel.

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gel (jel),

n a colloid in solid form, jellylike in character. Hydrocolloid impression materials are examples of gels.

gel, brush-on, fluoride,

n a gelatinous preparation used to promote remineralization of teeth and discourage further demineralization, intended to augment daily brushing and flossing. Formulas contain either 1.1% sodium fluoride or 0.4% stannous fluoride in a glycerin base.

gel strength,

n See strength, gel.

gel time,

n See time, gel.

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gel

a colloid that is firm in consistency, although containing much liquid; a colloid in a gelatinous form.

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coupling gel

see coupling.

gel diffusion technique

see immunodiffusion.