D3355 — Pulpal regeneration — initial visit
D3355 is the first visit of pulpal regeneration, where an immature tooth is disinfected and a scaffold placed so the root can carry on growing.
This code belongs to a set of four covering apexification and pulpal regeneration. The clinical detail lives in the apexification and pulpal regeneration guide; the code-level detail is here.
The detail below covers what the code obliges the record to show, the range of fees, the likely insurance outcome, and a comparison drawn code by code.
D3355 in detail
Counted — per visit rather than per tooth or per site.
Told apart from the codes it is confused with
D3353 — Apexification — final visit: It is the visit that fills and seals the canal once an immature root has finally formed a barrier at its tip, ending a treatment that has run for months.
D3352 — Apexification — interim medication replacement: It is the interim version.
D3351 — Apexification — initial visit: It is the same procedure specified for apexification rather than for pulpal regeneration.
Those three codes and D3355 are the whole group — nothing else describes this procedure. The practical point: confirm which of these is going on the claim before treatment, not after. Corrections after submission mean a resubmission, a delay, and occasionally a fee you did not expect.
Every code in this group
These codes describe the same broad procedure and differ in one respect each. Each has its own page with its own fee range and coverage notes.
| Code | Procedure |
|---|---|
| D3355 | Pulpal regeneration — initial visit — this page |
| D3351 | Apexification — initial visit |
| D3352 | Apexification — interim medication replacement |
| D3353 | Apexification — final visit |
Questions about D3355
What does dental code D3355 mean?
D3355 records pulpal regeneration, initial visit — one of the endodontics codes.
What is the typical fee for D3355?
Between $600–$1,500 in most practices — and that is the figure before any benefit is applied, not what you would pay at the desk.
Will my plan pay for D3355?
It is generally a covered benefit in the basic / major category, typically 50–80%. Frequency limits and waiting periods are the usual reasons a claim is refused.
Also known as: apexification, open apex, immature tooth, pulpal regeneration, revascularisation.