Quiz 4

Question 1

is warm vertical compaction a more or less complex technique than lateral condensation?

Answer 1

more complex

Question 2

T or F: the sealability of warm vertical compaction is inferior to that of lateral condensation

Answer 2

-false -it is comparable to that of lateral condensation

Question 3

what are the indications for warm vertical compaction?

Answer 3

same as for lateral condensation

Question 4

in what cases is warm vertical compaction preferred over lateral condensation?

Answer 4

-internal resorption -other situations involving internal morphologic complexities

Question 5

what is the advantage of warm vertical compaction?

Answer 5

the ability to adapt the warmed and softened GP to the irregular surface architecture of the root canal system

Question 6

what are the disadvantages of warm vertical compaction?

Answer 6

-increased difficulty of length control -more complicated procedure -larger assortment of required instruments -a somewhat larger canal preparation is necessary to allow insertion of the instruments to the required depths

Question 7

gutta percha used in warm vertical compaction is ___

Answer 7

thermoplasticized

Question 8

what type of pluggers are used in warm vertical compaction?

Answer 8

schilder

Question 9

schilder pluggers begin at ___mm in diameter and increase by ___mm for each successive instrument

Answer 9

0.4mm (equal to ISO size #40) and increase by 0.1mm

Question 10

what is the largest size schilder plugger?

Answer 10

1.1mm (equal to ISO size #110)

Question 11

what is the outline of the warm vertical compaction technique?

Answer 11

-a GP cone that has a taper similar to that of the instrumented RCS short of the apex is fitted and heat is applied using a plugger -the GP is softened by the heat and becomes plastic -pluggers are placed in the canal using apical pressure to produce hydraulic force that moves the GP apically against the canal walls and into RCS irregularities like accessory and lateral canals -GP is then added in small increments, and each GP is heated and softened and packed vertical until the entire canal is filled

Question 12

what does the access opening look like for maxillary molars?

Answer 12

Question 13

what does the access opening of a mandibular first molar look like?

Answer 13

Question 14

what does the access opening of a mandibular second molar look like?

Answer 14

Question 15

what are the basic UUSOD instrumentation steps?

Answer 15

1. access preparation
2. find and file
3. coronal preflare
4. coronal prep
5. working length w/radiograph
6. glide path
7. mid-root prep
8. apical prep
9. final irrigation with master cone fit