© 1998 – 2024 National Dental Assisting Examining Board 42 Candidate Handbook for the Written Examination – 2024 ITEM 30 What radiolucent structure would the dental assistant expect to see near the apex of the fractured tooth? 1. Lamina dura. 2. Maxillary sinus. 3. Zygomatic arch. 4. Parotid salivary gland. Domain reference: 5.2.3.17 ITEM 31 Which one of the following teeth would be best as the control tooth for the pulp vitality test? 1. 17 2. 15 3. 26 4. 46 Domain reference: 5.9.2 ITEM 32 The cold test for the tooth causes an intense pain that does not resolve for a few minutes. What diagnosis is most probable? 1. Normal pulp. 2. Necrotic pulp. 3. Reversible pulpitis. 4. Irreversible pulpitis. Domain reference: 5.9.1 Matching type sample questions: A dental assistant must be able to self-correct errors made during dental dam punching and placement. From the list of errors below, chose the one that best matches the scenario given in the item. Each error may be used once, more than once or not at all. 1. Holes are punched too large. 2. Arch is punched too flat. 3. Holes are punched too far apart. 4. Arch is punched too curved. 33. Bunching and stretching on lingual of dam when placed. 34. Folding occurs on the facial aspect of completed dam. 35. Inversion of the dam is impossible, resulting in leakage throughout. 36. Excess dam material is present between all exposed teeth. 37. Bunched dam material on the mesial and distal of the operative tooth results in the handpiece catching and tearing the dam septa. Domain reference: 5.6.4.5
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