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DA Chapter 22

DA Chapter 22 Production & Evaluation of Radiographs

Light film is a result of....and.... Underdeveloping and underexposure
The ideal temperature of developing solution is....degrees 68
Panoramic radiographs give the dentist a view of....(hint-there are 5 things) Fractures in bones, Sinuses, the entire dentition, TMJ, Unerupted teeth
Which dental specialist would be the most likely to ask for a vertical bitewing? Periodontist
In placing a periapical radiograph, how many inches over the occlusal/incisal edge should the film packet be placed? 1/8
Milliamperage seconds determine the amount of radiation exposure the patient receives. The difference between the shades of gray is the.... Contrast
What is shown on a periapical radiograph? (hint-there are 3 things) apical area of a tooth, tooth development stage and eruption stage
A brown stain is a result of insufficient.... Rinsing
Placement of the film backward in the patients mouth results in..... Herringbone pattern
a film not exposed to radiation results in.... Clear film
Extraoral cassettes are usually lined with.... Phosphors and an intensifying screen
In the paralleling technique, the film packet must be.... Parallel to the long axis of the tooth
Which dental speciality routinely uses the cephalometric radiograph? Orthodontics
What is shown on a bitewing radiograph?(hint- there are 3 things) Alveolar crest, Faulty restorations and caries
Duplication of a radiograph requires.... Duplicating film, Duplication machine and Processing method
The technique error that is caused by not having enough angulation is.... Elongation
Movement by the patient's head or the tubehead results in.... A blurred image
Incorrect horizontal angulation results in.... Overlapping
The technique error caused by having too much angulation is... Foreshortening
The temperature for automatic processing is.... 90 degrees
Which observations should be made of a child's mouth before placing films? Check for loose teeth, canker sores and cold sores
What area does the bitewing radiograph cover? Premolar and Molar
When mounting films the term used when placing the dot towards the operator is called.... Labial mounting
A general rule of thumb is The fixing time should be.......as the developing time. Twice as long
In the bisecting angle exposure technique, the central beam must be.... Perpendicular to the bisecting line
In regard to the size of the crystals in the emulsion, the larger the crystals the.... Faster the film
Occlusal radiographs are taken to view what?(hint-there are 3 things) Supernumerary teeth, Cysts and impacted teeth
The degree of darkness on an xray, which is also controlled by MAS, is the.... Density
Bitewings are used to detect....(hint- there are 3 things) Calculas, caries and faulty restorations
The dental specialists who routinely use exraoral radiographs are.... Oral surgeons and Orthodontists
If the beam missed part of the film, the result is.... cone cutting
In which position should the patient be placed infor bitewing radiographs? Upright
What are the intervals for taking radiographs for routine dental exams? 6 and 12 months
In the developing solution, which chemical blackens the exposed silver halide crystals? Hydroquinone
Dark film image is the result of.... Overdeveloping or developing solution being too warm
If an automatic processor has a daylight loader it means the film can be.... Processed in the daylight
Streaks on a film are caused by....? Dirty rollers or processing racks
The radiograph used to assess the patients skeletal profile and structure is.... A Cephalometroc
The safelight is of a....spectrum Red-orange
What error occurs when film is not completely immersed or tanks have low solutions A partial image
What error occurs when there are dark fingerprint smudge marks Film artifacts
What error occurs when there is overdeveloping or developer temperature is too high Dark film
What error occurs when the film has a gray appearance or detail is lost Fogged film
What error occurs when there is too much angulation Foreshortening
What error occurs when the tubehead is angled toward mesial/distal instead of interproximal Overlapping
What error occurs when the xray beam missed part of the film cone cutting
What error occurs when there is too little positive angulation for maxillary or negative for mandibular Elongation
T/F....Exposing radiographs is a skill that requires proper technique each and every time True
T/F....Todays sewage treatment facilities permit that developer and fixer solutions be poured down the sink drain False
T/F....The endodontic film holding device is made of plastic and aids in the patients being able to close or bite down False
T/F....Vertical positioning will show more open contacts of the premolar False
T/F....Labial mounting is when the depressed dot is toward the operator as if the operator is viewing the films from the inside out. False
T/F....To recheck your film positioning, the dot on the film is to be towards the occlusal/incisal surface True
T/F....The same number of films are taken on an adult full mouth series as for a child False
T/F....The paralleling technique must use a film holding device True
T/F....Bitewing radiographs are also known as interproximal radiographs True
T/F....Radiation exposure times are the same for children as adults False