口腔试题（Oral test）.docVIP

口腔试题（Oral test） 1. The main purpose of the dovetail button is to: A. avoid accidental wear of the pulp B. Preserve the natural tooth tissue C, easy to restore adjacency relations D. Prevent the filling material from falling off during chewing $D 2. Any nest hole needs A, suitable shape, fixed position and resistance B. Proper shape and resistance C, proper form and solid position D, suitable solids and resistance forms $A In the distance between the adjacent plane and the hole, the Black hole system should be: Class A, Ⅰ hole B, Ⅱ hole C, Ⅴ hole D, Ⅳ hole $B 4. Which of the following reasons generally does not appear to be cold and hot: A, no basis or basement B, the fillings have not resumed contact with the adjacent teeth C. The fill is off D, fillings and holes are not closed or broken $B 5. The following disinfectant should be used when filling the hole with compound resin: A, 50% thymol ethanol solution B, camphor mixture C, 75% ethanol D, chlorphenol camphor mint $C 6, which of the following a hole shape is a Black hole Ⅱ class: A, 43 adjacent hole B, 14 adjacent holes C, 15 buccal side neck cavity D, 36 buccal cavity $B 7. In order to achieve a good resistance, which of the following is not conducive to the resistance: A, the hole should be in the tooth essence has certain depth B: the hole is in a box C. Remove the suspended enamel D, small entrance and large hole at the bottom $D 8. The definition of resistance is: A, to enable the filling to withstand the chewing power B. The filling and teeth can withstand the chewing power C. The teeth can withstand the chewing power D, make the fill not loose and fall off $B 9. In the filling operation, the purpose of the mat base is: A, isolate stimulus, protect the pulp B, to strengthen resistance C, to enhance disinfection D, in order to strengthen the solids $A 10. When filling the hole, the suspension should be: A, layer upon layer of silver amalgam B. Fill the face with the rear filling C, upper forming sheet and