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Dental Radiography -- Principles and Techniques

Film Base flexible piece of plastic provide support and strength
Adhesive Layer thin layer of adhesive material that covers both sides of the film base attaches the emulsion to the base
Film Emulsion Coating attached to both sides of film base homogenous mixture of gelatin and silver halide crystals
X-ray Film dbl emulsion film, requires less radiation to produce image
Lead Foil Sheet located behind film to shield the film from backscattered radiation
Development reduce exposed silver halide crystals into black metallic silver developer sol. softens emulsion during this process
Rinsing removes developer from film and stop dveelopment process
Fixing remove unexposed silver halide crystals from film emulsion hardens film emulsion
Developer Sol. weakened sol. does not fully develop the latent image and produces a nondiagnostic radiograph w reduced density and contrast
Fixer Sol. dilution weakens the sol.
Underdeveloped Film - light - depleted developer sol. - not enough development time - developer sol. too cool
Overdeveloped Film - Dark - too much developing time - sol. too hot - concentrated developer sol
Created by: summerbradley
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