Lecture 2 Flashcards
Small nodules on post
Can prevent seating
Small nodules under vertical stops
Can prevent seating
Post must seat
Passively
Once custom cast is completely seated
It is cemented into place
Biomechanical considerations
Post do not reinforce teeth
The main resin for placing the post is to hold the core buildup
Endo access only
Generally anterior teeth
Access restored with composite
Coronal Radicular Buildup
Generally molar teeth
Lugs in each canal
Ferrule heigh remains 3-4 mm
Lugs
3 mm lugs in each canal
2 mm in diameter and 2 mm deep
Post and cores when
Inadequate coronal tooth structure remains to suppor the buildup and the crown
Post and core types
Custom
Prefabricated
Most common technique
Prefabricated post and cores
End cutting
ParaPost drill
No end cutting
Gates Glidden bur
Peeso Reamer
The post should be no more than
1/3 the root diameter with the root wall at least 1 mm thick circumferential
Canals are
Elliptical which makes uniform reduction with a drill impossible
