Dental posts are small rod-like structures put into a tooth to act as an anchor for dental restorations (like crowns) to help make teeth strong and functional again. They are most commonly used to support & reinforce the tooth after root canal treatment.

A root canal is a treatment that resolves infection in the inside of a tooth-the pulp, which contains nerves, connective tissue, and blood vessels. If this tissue gets infected due to deep cavities, repeated dental work, cracks or injury, it may need a root canal therapy.

Engaging Dental Posts That Drive Patient Engagement and Education

When a root canal is performed, the dentist clears out & seals the canal that holds the tissues inside of the tooth. Sometimes, the roots of the tooth will break up or decay, and this can cause discomfort & other symptoms. A root canal can resolve this & allow the tooth to be saved.

Afterwards, the clinician will usually place a post to help with stability & prevent the tooth from breaking off or becoming cracked. The clinician will decide whether to use a prefabricated or custom post & core. When using a prefabricated post, it is important that the length is correct. For example, it is a best practice that the post is 2/3 of the length of the canal with 4 to 5 mm of gutta-percha being left at the end of the root. Anything less will disrupt the seal & can lead to iatrogenic problems.

A custom-made post is a good option for difficult-shaped canals. Among other things, it allows the clinician to choose between different materials such as zirconia (which is highly biocompatible and offers great aesthetics) or stainless steel. It also allows the clinician to shape the post in a way that is congruent with the walls of the canal, which will make the crown more stable.