Pulpotomy and Pulpal Debridement: Emergency Relief
A pulpotomy removes the pulp tissue from the crown of the tooth while leaving the tissue in the roots intact. The chamber is opened, the inflamed coronal pulp is removed, a medicament is placed on the remaining root pulp, and the tooth is sealed. It is a partial treatment by design — it deals with the inflamed part and preserves the living part.
What pulpotomy and pulpal debridement involves
A pulpotomy removes the pulp tissue from the crown of the tooth while leaving the tissue in the roots intact. The chamber is opened, the inflamed coronal pulp is removed, a medicament is placed on the remaining root pulp, and the tooth is sealed. It is a partial treatment by design — it deals with the inflamed part and preserves the living part. The variants differ in intent. A therapeutic pulpotomy (D3220) is the standard treatment for a baby molar with decay into the pulp. Pulpal debridement (D3221) is emergency relief for a tooth in acute pain, opening and cleaning it to release pressure without completing root canal treatment that visit. A partial pulpotomy for apexogenesis (D3222) is done on an immature permanent tooth so the root can keep developing.
When this treatment is used
D3220 is a paediatric workhorse, used constantly on primary molars. D3221 is an emergency code for a patient in severe pain when there is not time to complete a root canal. D3222 applies to young permanent teeth — usually after trauma or deep decay — whose roots are still forming.
Why leaving living root pulp is the point
In a baby tooth, the root pulp is what allows normal resorption of the root as the permanent tooth pushes up. Removing it entirely and filling the canals with an unresorbable material interferes with that process, which is why full root canal treatment on a primary tooth uses resorbable material and why pulpotomy is often preferred. In an immature permanent tooth the reason is different and more important: a living pulp in the root is what continues to build root length and wall thickness. A permanent tooth root-treated at age eight ends up with a short, thin-walled root that is vulnerable to fracture for the rest of the patient's life. Keeping the root pulp alive so the root can finish forming — apexogenesis — is genuinely consequential.
The emergency version
Pulpal debridement is the code for the appointment where somebody arrives unable to sleep from tooth pain. Opening the tooth and removing the inflamed pulp tissue releases the pressure and usually produces dramatic relief within minutes. It is not a completed root canal and the tooth will need one — but it converts an emergency into a scheduled procedure. It is reported for that purpose specifically, and should not be reported on the same day the root canal is completed on that tooth.
Costs and insurance in summary
Typical fee range across the group: $0–$0 where a single band applies. Several codes here are priced individually and carry their own range on their own page. Well below the cost of a full root canal. A stainless steel crown usually follows on a primary molar and is billed separately.
Benefit category: Basic, typically 70–80% on a typical plan. Generally covered. Plans expect a definitive restoration to follow on a primary molar, and will not normally pay a pulpotomy and a completed root canal on the same tooth on the same date.
Common restrictions: Not payable with completed root canal treatment on the same tooth and date; On primary teeth, a subsequent crown is expected; Frequency limited to once per tooth.
The codes this guide covers
Each of these describes a variant of the same procedure. Follow a code for its own fee range, its coverage notes and what distinguishes it from the rest of the group.
| Code | Variant | Typical fee |
|---|---|---|
| D3220 | Therapeutic pulpotomy (excluding final restoration) — most reported | $200–$500 |
| D3221 | Pulpal debridement, primary and permanent teeth | $180–$480 |
| D3222 | Partial pulpotomy for apexogenesis — permanent tooth with incomplete root development | $280–$700 |
Common questions
What is a pulpotomy?
Removal of the inflamed pulp from the crown of a tooth while leaving the pulp in the roots alive. It is the standard treatment for a baby molar with decay into the nerve.
Is a pulpotomy the same as a root canal?
No. A root canal removes the pulp from the whole tooth including the roots. A pulpotomy deals with the crown portion only and preserves living root tissue.
Why does my child need a crown after a pulpotomy?
A tooth treated this way has lost substantial structure and is at real risk of fracturing. A stainless steel crown reliably holds it together until it is lost naturally.
What is apexogenesis?
Keeping the root pulp of an immature permanent tooth alive so the root can finish developing. It matters because a root-treated immature tooth ends up short and thin-walled.