Propaedeutic Dentistry 预防性牙科学

crowns foresees the usage of:

1) cotton threads soaked with ethanol 90°

2) cotton threads soaked with ephedrine solution of 5%

3) cotton threads soaked with distilled water

4) dry cotton threads

1) medical gypsum with removable blunts from the same material

2) supergypsum with unremovable blunts

3) supergypsum with removable blunts

4) medical gypsum with unremovable blunts from the same material

1) 0,25mm

2) 0,5mm

3) 0,75mm

4) 0,025mm

made:

1) parallel to the gingiva

2) subgingival

3) at patient's choice

4) at doctor's choice

thickness of:

1) 0,1-0,2mm

2) 0,3-0,4mm

3) 0,5-0,6mm

4) 0,7-0,8mm

1) gold with title of 900

2) non-oxidable steel

3) chrome-cobalt alloy

4) pure gold

1) special oven without vacuum

2) at fire source

3) with sticking machine

4) special vacuum oven

platinum foil when manufacturing Jacket

physiognomic crown of ceramic is:

1) dentin

2) enamel

3) opaque

4) quartz

crown is offer to:

1) chemical phenomens

2) presence of retentive elements

3) perfect veneers pressure

4) sticking

at an angle:

1) sharp

2) obtuse

3) straight

4) concave

with powder based on the oxide of Corundum (Cd ):

1) Fe

2) Si

3) Ti

4) Al

2) lateral teeth

3) any tooth

4) mobile teeth of III degree

height with:

1) 3/4

2) 1/2

3) 1/3

4) 1/4

is:

1) modeling of the wax pattern from pink wax

2) modeling of the wax pattern from self cure acryls

3) modeling of the wax pattern from calibrated wax

4) direct modeling layer by layer of the composite paste from adequate colours

recommended for:

1) inlay, onlay prosthesis and such as auxiliary element in dental bridges

2) seriously damaged teeth

3) mobile teeth of III degree

4) regardless of age