Archive for the ‘Radiology’ Category

Radiograph FAQ

06Sep07

Frequently Asked Questions (FAQ) How do dental X-rays work? How often should radiographs be taken? What are the benefits of a dental radiograph examination? How do dental X-rays compare to other sources of radiation? What if I’m pregnant and need a dental radiograph examination? How do dental X-rays work? When X-rays pass through your mouth […]


RAP’s = Roentgen Area Product. Product of skin exposure (R) times exposure area (cm2). California Average Background Radiation per year = 1,836 RAP’s. Clinical exposure for Gendex 1000 UNIT set at 70 kVp, 15 mA using Precision Collimators for Periapicals using Bitewing Tabs for Bitewings, using Kodak Insight film. Use these numbers to update the […]


For many patients exposing radiographs is uncomfortable. Certain steps must be taken to minimize patient discomfort and maximize patient co-operation. • Always set the timer before film placement so the patient does not have to wait with the film in his/her mouth while you adjust the exposure time. • First start with the anterior films. […]


These statements should reflect the impression one can get from interpreting the radiographs not from knowledge gleaned from the clinical examination. Address every phase of treatment that is planned. For example: Periodontal Generalized bone loss Isolated angular bone loss Healthy, intact crestal bone Restorative Isolated caries and/or failing restorations Moderate, partially controlled caries rate Rampant, […]


Soft Tissue Outlines Bone: Non-Dental Anatomical Features (where significant) e.g. close sinus approximation, tori, foramina Pathology (note if present) e.g. radiolucencies or radiopacities Bone Surrounding Tooth Crestal Lamina Dura Normal–continuous and well-defined smooth Altered–fuzzy, roughened, notched Percentage Bone Loss (if present) Mild: crestal change only with little to no change in bone level Moderate: about […]