Unit 314 Dental radiography Revision excercise Questions & Answers Solved 100% Correct!!

Radiography - Answer-Is the use of electromagnetic radiation to form 2 dimentional images of the inside of the human body x-ray image - Answer-Radiogaph Radioopaque - Answer-Appears white (Light/grey) areas of the film after exposure. This shows structures that radiation does NOT easily pass through on the film Radioluscent - Answer-Appears Black (dark) areas on the film after exposure. This shows that structures that radiation can easily pass through on a film. Intraoral film - Answer-Film packet placed inside the oral cavity during exposure Extraoral film - Answer-Film packet placed outside the oral cavity during exposure. Paralleling technique - Answer-The film is placed parallel to th long axis of the teeth and the x-ray beam is at 90 degrees to the film Bisecting Technique - Answer-In the Bisecting Angle Technique, the x-ray beam is directed perpendicular ( T shape) to an imaginary line which bisects (divides in half) the angle formed by the long axis of the tooth and the long axis of the film. Foreshortening image - Answer-Distortion of image; appears shorter than actuality. Ionizing radiation - Answer-Radiation that produces ionization, resu;ting in harmful effects.Legal Person - Answer-Liaises with protection boards and appoints the RPS and RPA. This is usually the senior dentist in the work place, although it can alternatively be suitably qualified and trained member of staff. It is their duty to ensure that all team members comply fully with all IRR99 and IR(ME)R 2000. Radiation Protection supervisor (RPS) - Answer-Usually the dentist that is appointed to oversee all radiation activity. Radiation Advisor - Answer-Usually a Physicist to give advice: on installation of the new equipment, staff training, quality assurance(QA) programs, assessment of staff protection, designation of controlled areas, drawing up contingency plans if malfunction occurs, investigate accidents. IRR99 - Answer-Ionising Radiation Regualtions 1999 IR(ME)R2000 - Answer-Ionising Radiation (medical Exposure) Regulations 2000 ALARP - Answer-As low as reasonably practicable/possible Referrer - Answer-The dentist who refers the patient for radiation exposure, either to themselves or to another dentist or specialist dental radiographer who cancarryout the exposure Operator - Answer-Any member of the dental team who carries out all or part of the practical duties involved with the exposure and processing of the radiograph. Intensifying Screen - Answer-A white plastic sheet on the inside cover of a cassette, where an extra oral film is placed. DPT - Answer-Dental Panoramic Tomagraph Manual processing of radiographs - Answer-Carried out by hand in a dark room using chemicals and water tanks that is heated and maintained at a temperature range of 18-22 degrees.