Post & Core Build-Up
A supportive foundation built inside a root-canal-treated tooth so it can hold a crown securely when too little natural tooth structure remains.
What Is Post & Core Build-Up?
A post and core build-up rebuilds a tooth that has lost significant structure — usually after root canal treatment — by placing a post into the root canal space and building up a core around it to support a crown.
This step is essential when there isn’t enough natural tooth left for a crown to grip onto securely, giving the final restoration a stable, long-lasting foundation.
- Provides a stable base for a crown on weakened teeth
- Prevents further fracture of a root-canal-treated tooth
- Uses durable post materials suited to each case
- Often completed alongside crown preparation
- Extends the functional life of the natural tooth
Signs You May Need Post & Core Build-Up
- A root-canal-treated tooth with extensive structural loss
- A tooth that has broken down below the gumline
- Your dentist advises extra support before placing a crown
- A previous large filling that has significantly weakened the tooth
Not sure if this applies to you? A short consultation will confirm — there’s no obligation to proceed.
What Happens, Step by Step
Assessment
The dentist evaluates how much natural tooth structure remains after root canal treatment.
Post Placement
A post is fitted into the prepared root canal space for added retention.
Core Build-Up
A core material is built up around the post to recreate the tooth's shape.
Shaping for Crown
The core is shaped to the correct form needed to support a crown.
Crown Preparation
The tooth is now ready for a crown impression, completing the restoration process.
Common Questions About Post & Core Build-Up
No — it's only needed when there isn't enough natural tooth structure left to support a crown securely on its own.
Posts are commonly made from fibre-reinforced composite or metal, chosen based on the tooth's location and the amount of support needed.
No, it's performed under local anaesthesia, and since the tooth's nerve has already been treated, sensitivity is minimal.
While rare, a tooth can still fracture under significant force, which is why a protective crown is placed afterward.
Your smile deserves expert care. Book your appointment today
Same-week appointments available at our Kankurgachi clinic. Speak to our care team by phone, WhatsApp, or the form below.