Why orthodontists are bringing aligner production in-house

Clear aligners are among the most requested orthodontic treatments worldwide — but outsourcing every case to a third-party lab means thin margins, multi-week turnaround and limited control over treatment design.

In-office aligner production changes that. By fabricating clear aligners under your own roof, from digital treatment plan to finished appliance, you replace €1,500–€2,000+ in per-case lab fees with a per-aligner cost as low as €8–€15. You also gain same-day or next-day turnaround, the ability to reprint a lost aligner in minutes, and full clinical control over staging, attachments and overcorrection.

For practices already running a 3D printer for models or retainers, in-house aligner production is a natural next step. Here is the workflow, what it costs, and what to plan for.

In-office aligner production — workflow diagram and unit-cost summary: digital treatment plan, 3D printing, washing and post-processing, light curing, finished aligner. Per-aligner cost €8–€15. 20-stage upper and lower case total €320–€600. Typical lab fees €1,500–€2,000+. Save €1,180–€1,680+ per full case.
FIG. 01  ·  In-office aligner production at a glance Workflow + unit economics

The in-office aligner workflow: 7 steps

In-office (thermoformed) aligner production follows a consistent sequence:

  1. Treatment planning — stage tooth movements, design attachments and overcorrections, export numbered STL files. This is the clinical brain of the operation.
  2. 3D printing — print dental models on a resin printer (SLA or DLP) at the sub-100-micron accuracy well-fitting aligners require.
  3. Resin selection — a model resin optimized for dimensional accuracy and smooth surfaces.
  4. Post-processing — wash off uncured resin, then UV-cure to full polymerization.
  5. Thermoforming — press a heated thermoplastic sheet over the model to form the aligner shell.
  6. Trimming and finishing — cut to the gingival margin and polish to a smooth, comfortable edge.
  7. Packaging and delivery — label, package and present each stage professionally.

Each step has its own equipment choices, parameters and quality-control checkpoints. The complete setup guide breaks down every step — printer and resin options, machine settings, trimming methods and SOPs — in full detail.

Free PDF guide Full protocols, cost tables and lab setup checklist — packed into 25 pages. ↓ Download for free

Setting up your aligner lab

You do not need a large space: a dedicated 3 × 3 meter area can house a printing zone, a wash-and-cure station, a thermoforming zone, a trimming station and packaging shelving. What matters is organizing functional zones, managing resin safety and ventilation, and building SOPs so production runs smoothly without constant orthodontist involvement.

Setting up your aligner lab — space and equipment checklist. Five recommended zones: 3D printing, wash and cure, thermoforming, trimming and finishing, packaging and storage. Minimum 3×3 meter footprint. Safety essentials: nitrile gloves, eye protection, fire extinguisher, ventilation, posted SOPs.
FIG. 02  ·  Lab layout — five zones, safety checklist, minimum footprint 3 × 3 m

What does in-office aligner production cost?

This is the question that decides whether in-house production makes sense for your practice — so here is the bottom line.

Per aligner
€8–€15
Materials, labor and equipment depreciation, all-in.
Per 20-stage case
€320–€600
Total in-house production cost, upper and lower arch.
Outsourced lab fees
€1,500–€2,000+
Typical price per full case from a third-party aligner lab.
Aligner cost calculator — in-office production cost estimator. Location, labor, material, 3D printer, planning software, lab overhead and consumables. Worked example for a French practice: €13.90 per aligner, €556.08 per case (40 aligners). Breakdown by material, equipment, doctor labor, assistant labor, software, lab space, consumables.
FIG. 03  ·  Aligner cost calculator — worked example, French practice €13.90 / aligner

Modeling a representative French practice at moderate volume, with treatment planning outsourced to Sunday Studio at €190 per case all-inclusive, in-office production comes out to roughly €13.90 per aligner — a fraction of the €1,500–€2,000+ in lab fees the same case costs when outsourced.

Key takeaway That is consistently 70%+ in savings per case, before you even count the gains in turnaround time and clinical control.

The full cost math — every input assumption, the per-aligner and per-case breakdown tables, equipment amortization, and how the outsourced-planning line compares to doing the digital setup in-house — is laid out step by step in the complete guide.

Direct-printed aligners: what is coming next and everything you need to plan for

Direct 3D printing of aligners — skipping both the model and the thermoforming step — is maturing fast. Specialized flexible resins from companies such as LuxCreo and Graphy let you print the aligner itself.

It is not yet the mainstream standard, but any practice setting up now should keep its infrastructure compatible with direct printing. The guide covers where direct-print aligners stand in 2026 and how to plan for the transition.

Common mistakes to avoid

The most frequent missteps when starting in-house production:

  • Underestimating treatment planning — the clinical brain of the workflow, not a CAD chore.
  • Underestimating the trimming step — where comfort and fit are won or lost.
  • Neglecting professional packaging — patients perceive the appliance through its presentation.
  • Not tracking real per-aligner costs — the only way to know whether the business case is actually working.
  • Tackling complex 30-stage cases before the workflow is dialed in.

The complete guide explains how to avoid each one — download it below.

Where treatment planning fits — and how Sunday Studio helps

In-office production gives you control over fabrication. But the most time-consuming and clinically critical step — the digital treatment plan — happens before anything is printed, and it takes 2–4 hours per case.

Sunday Studio is a design-only service built for this workflow. You send your intraoral scans and prescription; your plan is designed by an orthodontist, not a CAD technician, and reviewed within a team of three orthodontists, with staged STL files delivered within 48 hours at €190 per case, all-inclusive. You keep production, delivery and the patient relationship — Sunday Studio simply removes the planning bottleneck.

In-office aligner production FAQ

How much space do I need for an aligner lab?
Roughly 3 × 3 meters is enough for a complete setup — printing, washing and curing, thermoforming, trimming and packaging zones.
How long does it take to produce one aligner?
About 10–15 minutes of hands-on time per aligner; a full 20-stage upper and lower case in 1–2 working days.
What if a print fails or an aligner is defective?
You reprint in minutes — no two-week wait for a lab replacement, no shipping, no patient rescheduling.

More questions — staffing, regulation, printing both arches in one run — are answered in the complete guide.