DASLE MN QUESTIONS AND ANSWERS ALREADY PASSED

When taking alginate impressions, having the patient swish with a mouth rinse such as Listerine prior to impressing helps decrease all of the following except: a: drooling by the patient B: microorganisms on the impression C: gagging by the patient D: bubbles in the material a: Drooling by the patient You are seating your patient to take alginate impressions, what position will you have them in? A: upright B: reclined C: standing D: supine a: Upright Which of the following would not be an effective communication method? A: ask the patient to use predetermined hand signals to communicate with you B: explain to the patient that the material may feel coldC: Ask the patient to breath through their mouth D: inform the patient that they can bring their head forward and off the headrest once you have seated the impression C: Ask the patient to breath through their mouth In order to best record the muscle attachments, frenums, and achieve a complete peripheral roll, the operator will need to perform_________ by gently massaging the patients lips and cheeks. A: facial trimming B: frenectomy C: muscle trimming D; muscle rolling C: muscle trimming A main advantage of polyvinyl siloxane is that it has high dimensional stability and pouring can be delayed for up to 7-10 days without distorting. True False TRUE Polysulfide is an impression material where the disadvantages outweigh the advantages. Some of the main disadvantages are the odor, bad taste, it stains, and has a long setting time. TrueFalse TRUE An impression tray should extend _____ mm beyond the last tooth in the arch. A: 1-2 B: 2-3 C: 3-4 D: 4-5 B: 2-3 If an alginate impression remains in the open air, moisture will evaporate from the material, causing it to shrink and distort. This condition is called: A: expansion B: imbibition C: synersis D: adaptation C: synersis As a right handed operator, when seating the mandibular impression, you want to be standing at the side of the patient, near 8-9 o'clock. When seating the maxillary impression, you will want to be behind the patients head, near 11-12 o'clock. TrueFalse TRUE When might the fabrication of a custom tray be necessary? A: the stock trays do not fit the patients mouth properly B: the patient is edentulous C: the patient needs whitening trays