For post preparation we should leave ……mm of GP:
- a. ????
- b. 10mm
- c. 5mm. ***
What is the ideal length of a post dental?
At a bare minimum, the post should extend at least a distance equal to the height of the crown being placed. Most ideally, it will extend around 2/3rds the length of the root. However, 3/16ths of an inch or so of gutta percha needs to be left undisturbed at the root's tip to maintain an adequate endodontic seal.
What is the ideal length for post in post and core?
In addition, although placement of a post that is two-thirds of the length of the root is ideal, maintaining 4 to 5 mm of apical gutta-percha is essential because anything less than that will disrupt the seal.
How much GP should be left in post and core?
A minimum of 5mm GP has been recommended for the use of traditional root canal sealers and luting cements but 4mm has been considered acceptable when using modern materials. This is to provide adequate apical seal.
How much gutta percha should be left for post placement?
Make sure to leave at least 4 to 5 mm of gutta percha as an apical barrier and ensure the post preparation diameter is smaller than one third of the root diameter.