Ch. 18

Question 1

It can be used for either ____ or ____-rooted teeth. For a multi-rooted tooth, a post of optimal length is custom made for the ____ canal, and a second canal is used for a____.29 Cast post and cores are made from a pattern fabricated of ____ or ____

Answer 1

single
multi
largest
short key
resin
wax

Question 2

Take the plastic post and seat it all the way down. Pick it up with the cotton pliers at the selected reference point and measure it up against the rubber stopper of the explorer. The ____ should be the same. If it is not, the post space may need to be made ____ to be able to accommodate the post.

Answer 2

length

wider

Question 3

place a small notch, using a bur, on the ____ portion of the post

Answer 3

facial

Question 4

Do not ____ it over the tooth structure. This results in a ____ of acrylic resin. This lip, when cast, will distort and cause problems with the ____ of the cast post and core. It is easier to avoid this lip if the cast post and core preparation has a flat surface on the incisal portion to form a ____ with the pattern resin. If the preparation is too thin in the ____ portion, it makes pattern fabrication difficult.

Answer 4

overextend
lip
seating
butt joint
coronal