NDAEB exam questions with correct answers

Periodontal disease - Answer Infection of the structures that support the teeth (gums and bones) Mercury, silver & tin - Answer What is amalgam fillings composed of Periodontal disease - Answer Bone loss in the jaw is an indication of what disease Concept of radiation that states that exposure should be kept "as low as resonably possible" - Answer What is the ALARA concept Positive - Anode Negative-Cathode - Answer What is the positive & negavtove electrode in the x-ray tube Film, phosphorous storage plate, digital sencor - Answer What are examples of inage receptors •To help the dentist see conditions in the mouth not visitble to the eye - Answer •What is the purpose of dental x-rays ▪bone loss ▪info during dental procedures (ex: root canal therapy) ▪locate abnormalities in the soft & hard tissue ▪evaluate growth & development ▪Identify early dent caries - Answer •What can a dentist see on an x-ray that he canot see with just his eyes