Minnesota DANB Final Exam And Complete Answers 100% 2024.

Why and where is it necessary to add wax (wax trimming) to an alginate tray? - Answer To extend the depth or the length of the tray, or if the pt. has an unusually high palate. Lingual side or the end of the posterior portion of the tray. What type of wax is used for the wax trimming? - Answer Utility wax. What is the correct operator position when taking a MX impression? MN? - Answer MX - RH: 7/9 o'clock LH: 3/5 o'clock MN - RH: 10/11 o'clock LH: 2/1 o'clock Why is the pt instructed to lift and extrude their tongue when taking a mandibular impression? - Answer To get the impression of the lingual frenum, tongue space and myohylod ridge. What type of tray/trays are used during an alginate impression? - Answer Stock and custom trays. How is the setting time of alginate lengthened? Shortened? - Answer Lengthened - using colder water Shortened - using hotter/warmer water How many increments of powder are used in a mandibular impression and how do you load the tray? - Answer MN- 2 scoops of powder. 2 portions from the lingual surface of the tray. How many increments of powder are used in a maxillary impression and how do you load the tray? - Answer MX- 3 scoops of powder. 1 portion, dispensed from posterior to anterior. What is imbibition? - Answer Absorbs water and expands. What is syneresis? - Answer Loses water and shrinks/distorts