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DA Chapter 22
DA Chapter 22 Production & Evaluation of Radiographs
| Question | Answer |
|---|---|
| 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 |
Created by:
Robyn Brandenburg
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