© 1998 – 2024 National Dental Assisting Examining Board 36 Candidate Handbook for the Written Examination – 2024 ITEM 6 Which one of the following radiographic images is most useful in detecting interproximal caries? 1. Panoramic. 2. Periapical. 3. Bite-wing. 4. Occlusal. Domain reference: 5.2.3.6 ITEM 7 Which one of the following fluids provides lubrication during the movements of the temporomandibular joint? 1. Blood. 2. Saliva. 3. Synovial fluid. 4. Lymphatic fluid. Domain reference: 2.2.3 ITEM 8 What is the correct way to store scrap amalgam? 1. In a plastic waste container. 2. In a glass container filled with water. 3. In a metal container with sodium hypochlorite. 4. In a tightly closed mercury recycling container. Domain reference: 5.7.7.2 ITEM 9 In a steam sterilizer, the distilled water is converted to steam then condensed back into liquid water. What happens to the condensed water? 1. It is drained from the sterilizer and discarded down the drain in the sink. 2. The sterilizer continues to convert the water to steam over and over. 3. It runs directly from the sterilizer into the sewage system. 4. It must be collected as contaminated liquid waste. Domain reference: 3.1.2.2
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