: To provide retention for a core buildup in teeth with insufficient remaining structure while maintaining the integrity of the apical seal. Key Measurements :
The diameter of the post should not exceed of the root diameter to prevent fractures. 55_1mp4
Leave at least of gutta-percha at the apex to ensure an adequate seal. : To provide retention for a core buildup
: This specific method involves instrumenting the canal to a size 40/.04, fitting corresponding fiber posts, and using bioceramic sealers to ensure a seamless bond between the post and the root. : This specific method involves instrumenting the canal
Post preparation (often called "post space preparation") is the clinical step of removing a portion of the root canal filling to create room for a dental post, which subsequently supports a core and crown.
Post preparation techniques and their effect on the apical seal - PubMed