Online Aligner Treatment Plan: Approval Workflow for Dental Labs

Clear aligner cases live or die on the treatment plan. Not on the plastic, not on the trim line, not on the box the trays ship in. The plan is what the doctor signs off, and once it is signed off the lab is committed to a stack of trays that has to deliver the planned movement.

The problem is that most labs still run that approval over email. Annotated screenshots, ZIP files of setups, late-night replies asking for "just a small change to tooth 23." Every loop adds days to the case and risks miscommunication. An online aligner treatment plan workflow fixes that.

What an online treatment plan actually is

An online aligner treatment plan is a single page where the doctor can:

  • Open the case in a 3D viewer that runs in the browser.
  • Step through every aligner, from initial to final position.
  • See where IPR is required, how much, on which contact.
  • See the proposed attachments and where they are placed.
  • Leave comments on a specific aligner step or tooth.
  • Approve, request changes or reject the plan with a single click.

Behind the scenes, the lab platform tracks every revision, who approved what and when, and unlocks production only after the final sign-off. That is the workflow we are after.

Why moving the plan online matters

Speed

Approval cycles drop from days to hours. The doctor reviews on a phone between patients, posts two comments, the lab adjusts, the doctor approves the next morning.

Traceability

Every plan has a history. If a case goes sideways at month nine, you can pull up exactly which version was approved, by whom, with which comments. Email threads cannot do that.

Standardisation

Doctors see the same interface for every case. They learn it once. New doctors onboard faster and the lab spends less time explaining how to read a setup.

Marketing

A modern review experience is something doctors notice. It is one of the easiest ways for a lab to differentiate from competitors who still ship setups by email.

The components of a serious treatment plan tool

3D viewer

Browser-based, no install. Should display upper and lower arches, allow occlusal, frontal and lateral views, and show every staged position in sequence. Frame rate matters: a viewer that stutters loses doctor trust immediately.

Step-by-step playback

A play button that animates from initial to final position, with a slider to jump to any aligner. The doctor needs to see how the teeth move over time, not just where they end up.

IPR overlay

Each interproximal reduction has an amount in millimetres and an aligner step where it happens. A serious tool surfaces that data on the contact between the two teeth, not in a side panel that nobody reads.

Attachments

Attachment shape, size and position belong on the tooth in the viewer, with a list view as a fallback. The doctor needs to confirm them because they are bonded in the chair.

Threaded comments

Comments must attach to a specific aligner step or to a tooth, not float in a generic chat box. The lab CAD designer needs to know exactly which movement the doctor is challenging.

Versioned approvals

When the doctor approves, the platform freezes that version with a timestamp and the doctor identity. Subsequent edits create a new version. The approved version is the one that gets manufactured.

Production trigger

Approval should automatically advance the case to manufacturing. No "let me know when it's approved so I can start." That handoff is exactly the manual step the platform is meant to remove.

Online aligner treatment plans, included

DoYourLab includes a built-in 3D treatment plan viewer with IPR, attachments, comments and one-click approval. Doctors review on any browser, the lab triggers production from the same screen. See plans

The end-to-end workflow

  1. Case intake. The clinic submits the aligner case with patient data, prescription, photos and the STL pair from the intraoral scanner.
  2. Setup creation. The lab CAD designer builds the staged setup in their preferred software and uploads it to the platform.
  3. Doctor review. The platform notifies the doctor with a link to the online plan. The doctor reviews on the 3D viewer.
  4. Adjustment loop. If the doctor requests changes, the lab issues a new version. Loop continues until approved.
  5. Approval and lock. The doctor approves, the version is frozen with timestamp and signature.
  6. Production. The platform unlocks the manufacturing phase: 3D printing of models, thermoforming, trimming, polishing, packaging.
  7. Shipment. The lab ships the trays. Tracking is attached to the case.
  8. Refinement. If the case needs a refinement after a few months, the platform clones the case and starts the loop from the new scan.

Common mistakes labs make

  • Treating the viewer as a screenshot replacement. A passive image is not a plan. The doctor must be able to step through aligners interactively.
  • Letting approvals happen by email. If the lab accepts "ok, go ahead" by email, the audit trail is broken from day one.
  • Hiding IPR data behind a click. Doctors will skip data that is not visible in the main view, then complain at month four.
  • Not versioning. Without explicit versions, every change discussion turns into "which one was the last we agreed?"
  • Skipping the photo set. Intraoral and extraoral photos belong attached to the case, not in a separate folder.

Building vs buying

A lab building this from scratch is signing up for a multi-year engineering project. The 3D viewer alone is months of work. The right answer is to use a lab platform that ships an aligner treatment plan tool out of the box.

If you are still choosing software, our dental laboratory software guide covers what to look for. If you are mid-digitization, the step-by-step plan to digitize a lab places treatment plans in the broader rollout.

What "good" looks like in practice

A lab running this workflow well sees three concrete outcomes:

  • Approval time under 24 hours for routine cases.
  • Less than two revision rounds on average per case.
  • Zero "where is the latest plan?" emails. Everything lives in the case.

If your aligner cases hit those numbers, the lab is operating at the level the doctor expects, and the operation scales without adding administrative staff.