Author Show 1. Srivastava Ram Kumar ISBN 9789350250853 DOI 10.5005/jp/books/11399_10 Edition 1/e Publishing Year 2011 Pages 30 Author Affiliations 1. Chandra Dental College and Hospital, Barabanki, UP, India Chapter keywords Film processing, dental X-ray film, high-quality diagnostic dental radiographs, amalgam filling, silver halide crystals, chemical processing procedures, black metallic silver, exposed silver halide crystals, radiolucent structure, radiopaque structure, energized silver halide crystals, film emulsion, diaphoretic information, rinsing, fixation, agitating, oral surgery, liquid concentrate, developing agent, hydroquinone, elon, antioxidant sodium sulfate, preservative, alkali sodium carbonate, restrainer, fogged film, nondiagnostic, chemical deterioration, potassium alum, gelatin, panoramic film, thermometer, unwrapped dental X-ray, chemical contamination, lightening errors, overlapped films, fogged films, bulb wattage, radiograph, replenish, alkaline environment, alkaline accelerator, black metallic silver deposits, sodium hydroxide, sodium metaborate, sodium tetraborate Purpose of the developer is convert the exposed silver halide crystals into metallic silver grains ph is alkaline basic What are two chemical in the developer Metol/elon-builds up gray Four functions in the developer Developing agent Potassium sulfite -keeps reducing agents from developing unexposed silver halide Sodium sulfite- prevent radio oxidation 5 steps to manual processing Developing solution Developing solution temp and 68-70 degrees develop for 5 mins Remove alkaline developer before placing film in the fixer 30 seconds Stops further development establishing Ammonium thiosulfate - clears away unexposed silver halide Acetic or sulfuric acid -stops development by neutralizing developer Aluminum chloride or sulfide shrinks and hardens emulsion Sodium sulfite -maintains chemical balance 4ft away 15 watt bulb Manual chemical replenishment Developer- 6oz added to am Temp and maintenance for automatic processing For every 30- film 6-8 oz Which term best describes the process by which the laten image visible Which of these is the correct processing sequence Develop rinse fix wash dry The basic constituents of the developer solution are Reducing agent, activator, preservation restrainer During which step of the processing procedure are the expose silver halide crystals reduced to metallic silver Which ingredient remove the unexposed undeveloped silver halide crystals from the film emulsion Which ingredient causes the emulsion to soften and swell Which ingredient Hardens the emulsion Chemically the developer used in an automatic processor causes more _____ then developer to use for manual processing Each of the following should be considered when setting up an ideal darkroom except What to the following colors of the safe light filters is safer processing all films speeds What is the minimum safe distance to position the safe light above the work area in the darkroom What is the The appearance of the radiographic image if they film is exposed to a Safelite to long Which of these is considered a disadvantage of manual processing over automatic processing A thermometer is used for Manual processing to determine the temperature of the Each of the following is necessary and required for manual processing except What is the ideal temperature for processing film manually A film maybe safely exposed to WhiteLight for a wet reading It's the following is true regarding rapid film processing except Produces archival quality radiographs Each of the following is an advantage of automatic processing of remaining processing except Which pricing method requires the most maintenance in the strictest adherence to regular replenishment and cleaning Is a series of steps that converts the invisible latent image on the dental x-Ray film into a visible permanent image called a radiograph Are diseases that affect those soft tissues and bone around the bone loss Inflammation of the gingiva in the mid to soft tissue no bone loss Describes how I lost around adjacent teeth in the region And a vertical direction rather resorption of one tooth root sharing the interdental septum Probably come toward crown margins Her name plaque appears slightly radiopaque Does not cause. Perio disease Film place in the mouth backwards and then exposed What is the appropriate corrective action for a perispical radiograph of the maxillary molar region that's not images third molar Move the image receptor back further in the oral cavity When using the bisecting technique which of these errors results from in inadequate vertical angulation Overlap teeth contact rendors a bitewing radiographs and diagnostic the overlap appears more severe and anterior region one correct action is needed Shift the horizontal angulation toward the mesial Which of these conditions results from a failure to direct the central ray tour the middle of the image receptor Each of the following will result in radiographs that are too light except It's the final result in radiographs that are blank clear except If. Two films become overlapped together because they were inserted into the automatic processor to quickly what is the result Which of these indicates that a film is not properly wash Each of the following result and black artifacts and a radiograph except Static electricity appears radio graphically as It's the following is a cause of film fog except What removes unexposed silver halide?A clearing agent, also known as fixing agent, is the chemical that actually removed undeveloped silver halide crystals from the film. Sodium thiosulfate and ammonium thiosulfate are commonly used.
What is the chemical that removes the unexposed silver halide crystals on the film?A chemical solution known as the fixer is used in the fixing process. The purpose of the fixer is to remove the unexposed, unenergized silver halide crystals from the film emulsion. The fixer hardens the film emulsion during this process. Fixation time is 10-15 minutes, double the developing time.
What is the main ingredient in dissolving the unexposed silver halides?Sodium thiosulfate is a salt. It is the most important ingredient in the fixing solution because it dissolves the unexposed silver-halide crystals (the sodium thiosulfate is a solvent, because it dissolves the silver-halide crystals).
Which ingredient of the fixer removes all unexposed and any remaining undeveloped silver halide crystals?sodium thiosulfate, aka "hypo" or hypo sulfite of sodium. It is one of several chemical ingredients in the fixer solution and functions to remove all unexposed and any remaining undeveloped silver bromide grains from the emulsion.
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Which ingredient removes the unexposed undeveloped silver halide crystals from the film emulsion?
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