What is a dental post and when do you need it? 🔴 After a root canal is completed, if the tooth does not have enough tooth structure to keep the tooth stable, it may require a post. 🔴 It is important to know that a post does not increase the strength of the tooth, it mainly provides retention to the core(restoration/filling). . . . 🔴There are different types of posts. This is an example of a pre-fabricated post known as ParaPost Fiber Lux. . 🔴Your dentist may use this fiber pre-fab post on an