5/22 - Manikin tutorial, #19 FCC, Putty Matrix

Question 1

length of 856 bur at tip

Answer 1

1 mm

Question 2

describe FCC prep

Answer 2

0.5 mm Chamfer all the way around so use half of 856 bur
wall height at least 3 mm

Question 3

prep finish settings

Answer 3

ratio 1:1
2,500 rpm
torque 1.01 Ncm

Question 4

TOC

Answer 4

10-15 degrees

Question 5

margin terminates ___ occlusal to CEJ

Answer 5

0.2-0.5 mm

Question 6

how many teeth should you extend? when creating indirect putty matrix, where should you mark the cast? why?

Answer 6

at least one tooth mesial and distal to prepared tooth

mark cast just a little short of the neighboring teeth to make sure it precisely adapts to unprepared teeth

Question 7

putty matrix should extend ___ onto the soft tissue

Answer 7

3 mm

Question 8

how thick should putty matrix be

Answer 8

10-12 mm thick per grady
12-15 mm width buccal and lingual to teeth per lecture

large enough to be stable, not too large to be bulky

Question 9

what do you use to trim putty matrix? what not to call it?

Answer 9

Bard Parker #25 blade

don’t call it a scalpel

Question 10

what does button on R chest do

Answer 10

swing from under desk (for height)

Question 11

button on R chest corresponds to what other button

Answer 11

back left trap (also helps swing from under desk for height)

Question 12

button on back R trap does what

Answer 12

torso tipping

Question 13

when can you not use right posterior trap button

Answer 13

if you go up too high, therefore you can’t control torso tipping

Question 14

where could you access head control

Answer 14

head

Question 15

what rotates the head/controls neck?

Answer 15

wing nut in head

Question 16

which knob is the only one used on a routine basis

Answer 16

WING nut

Question 17

should you touch the knob that affects occlusion

Answer 17

NEVER!

Question 18

which knob dearticulates bottom half of head for cleaning

Answer 18

large middle knob

Question 19

what are the two “NEVERS” in relation to the manikin

Answer 19

1. never just grab head and turn it - it will loosen head from neck and will flop with no control
2. never let hinge slam the lid of manikin shut (place finger in ear space and gently close)

Question 20

when should you use exorcist position

Answer 20

when working in removable - can turn 180 degrees

Question 21

clockwise [loosens/tightens]. counter-clockwise [loosens/tightens]

Answer 21

clockwise tightens
counter loosens

Question 22

steps for putting manikin in centric

Answer 22

1. lower plate must be flush against backboard
2. mandibular typodont placed and seated evenly
3. maxillary typodont placed
4. loosen upper knob and back knows (make sure bottom is tight)
5. hold occlusion together
6. make sure condyle in fossa
7. after occlusion, place condyles in fossa and tighten knobs
8. confirm centric

Question 23

how to put away manikin

Answer 23

1. chin down to chest
2. right button, torso tip all way down
3. left trap as far as possible
4. chest button rest of the way