DRAFT FOR REVIEW — Not Doctor-approved for training. VERIFY items must be cleared before competency use.
Direct-Print Retainers
SprintRay Retainer — Lab Manufacturing Procedure
Smile Avenue Family Dentistry — In-House Laboratory
SprintRay Retainer — Lab Manufacturing Procedure
|
|
| Document ID |
SOP-LAB-080 |
| Version |
0.1 DRAFT |
| Effective (target) |
09/10/2026 |
| Owner |
Lab Technician (process owner) |
| Related |
Station Job Aid SOP-LAB-080-JA |
| Status |
DRAFT FOR REVIEW |
Start: Case received in Medit Lab with scan QC
End: Retainer bagged and logged in SEAZONA for outbound delivery
1. Purpose
This procedure standardizes in-house manufacturing of SprintRay direct-print retainers so every case meets the same quality, safety, and traceability standard before leaving the lab.
2. Scope
In scope: Medit Lab intake → scan QC → design (SprintRay Cloud Design AI Retainer preferred per IFU; VERIFY practice path) → RayWare / Pro 2 → ProWash S → NanoCure → finish → lab clean → bag & SEAZONA.
Out of scope: Chairside scanning; clinical delivery/adjust; vac-form retainers on printed models (see SOP-LAB-110 for models); nightguards (SOP-LAB-020); non-SprintRay printers.
3. Roles
| Role |
Responsibility |
| Clinical Assistant / Office |
Sends case via Medit Lab; receives bagged retainer |
| Lab Technician |
Scan QC; design import/export/approve; manufacture; finish; bag; SEAZONA |
| Trainer / Lead Lab Technician |
Competency observation and sign-off |
| Doctor |
Indication, Rx, try-in/delivery, remake authorization |
4. Practice Configuration
| # |
Item |
Smile Avenue setting |
| 1 |
Printer |
Pro 2 only |
| 2 |
Cure unit |
NanoCure — Retainer preprogrammed profile (do not invent minutes); allow cool before remove |
| 3 |
Case intake |
Medit Lab |
| 4 |
Design |
VERIFY — SprintRay Cloud Design AI Retainer preferred (IFU); outside CAD STL also acceptable |
| 5 |
Wash |
ProWash S — IPA ≥ 91% — standard cleaning cycle; basket wash with intaglio facing propeller preferred |
| 6 |
Design QC thickness |
≥ 0.6 mm (IFU) |
| 7 |
Lab clean before bag |
Soap + brush + warm water; dry. Cleaning — not chemical disinfection. |
| 8 |
Design approval before print |
Lab Technician |
| 9 |
Case log |
SEAZONA |
5. Safety
- Treat uncured Retainer as sensitizer. Ventilate; PPE.
- Do not bag under-cured retainers. Do not handle hot retainers without protection — heat can deform.
- Prefer support removal after cool post-cure to protect shape/surface.
- Cure waste resin fully. Do not use expired resin. Do not store filled tank on printer cradle when idle (IFU).
6. Materials & Equipment
Resins
- SprintRay Retainer
- IPA ≥ 91%
- Mineral oil (optional finish clarity)
Equipment stack
| Step |
System |
| Intake |
Medit Lab |
| Design |
VERIFY — Cloud Design AI Retainer or outside CAD |
| Nest / print |
RayWare → Pro 2 |
| Wash |
ProWash S |
| Cure |
NanoCure — Retainer |
| Case log |
SEAZONA |
Design QC targets
| Area |
Minimum |
| Appliance thickness |
≥ 0.6 mm |
7. Process Controls
| Gate |
Do not proceed if |
Proceed when |
| Intake |
Missing / unreadable |
Case open with ID / Rx |
| Scan QC |
Holes / wrong arch |
Scans usable |
| Printer |
Not Pro 2 |
Pro 2 only |
| Design |
Not approved; < 0.6 mm |
QC-A pass |
| Resin |
Expired |
In-date; shaken 1 min |
| Pre-cure |
Wet |
Fully dry |
| Cure |
Wrong profile / hot remove deforming |
Retainer profile complete + cooled |
| Outbound |
Failed QC-E |
Bagged + SEAZONA |
8. Procedure
A. Intake & scan QC
- Open case in Medit Lab.
- Verify ID, arch, Rx notes, due date.
- Scan QC; QC-SCAN pass/fail.
B. Design (VERIFY path)
- Preferred per IFU: SprintRay Cloud Design → AI Retainer treatment; upload scans; receive design. Alternately import outside CAD STL.
- Export STL; Lab Technician approves.
QC-A: ≥ 0.6 mm; coverage matches Rx; STL labeled.
C. Nest (RayWare)
- Import STL; select Retainer appliance type; material Retainer; Pro 2.
- Orientation: intaglio away; ~10° from anterior; layer thickness typically ~170 µm default; default supports.
- Queue to Pro 2.
D. Print
- Shake 1 minute; pour; assign material; print; log lot.
QC-B: Fully formed; no delamination.
E. Wash & dry
- ProWash S standard cycle, IPA ≥ 91%; prefer basket with intaglio toward propeller; remove promptly; dry fully (compressed air).
QC-C: Clean + dry.
F. Post-cure
- NanoCure Retainer profile. Allow to cool before removing from device.
- Prefer support removal after cool cure; silicone bur to smooth.
QC-D: Cured; shape intact; no tack.
G. Finish, clean, bag
- Optional: thin mineral oil on occlusal / support nubs + cotton buff for sheen/clarity.
- Soap + brush + warm water; dry.
- Bag + label + SEAZONA outbound.
QC-E: Pass required for release.
End of SOP-LAB-080. Clinical delivery is outside this procedure.
9. Case Log (SEAZONA)
| Field |
Entry |
| Date |
|
| Patient / case ID |
|
| Arch |
☐ Max ☐ Mand ☐ Both |
| Scan QC |
☐ Pass ☐ Fail |
| Design path |
☐ Cloud Design AI ☐ Outside CAD (VERIFY) |
| Design approved by (Lab Technician) |
|
| Retainer lot |
|
| Printer |
Pro 2 ☐ |
| NanoCure profile |
Retainer ☐ |
| QC-SCAN + A–E |
☐ Yes |
| Bagged for outbound |
☐ Yes — time __ |
10. Quality Checkpoints
| ID |
When |
Pass |
Fail action |
| QC-SCAN |
Intake |
Usable scans |
Return |
| QC-A |
Pre-print |
≥ 0.6 mm + approved |
Redesign |
| QC-B |
Post-print |
Complete |
Remake |
| QC-C |
Post-wash |
Clean + dry |
Re-wash/dry |
| QC-D |
Post-cure |
Cured + cooled shape OK |
Remake / salvage |
| QC-E |
Outbound |
Finish + bag + SEAZONA |
Hold |
11. Remake Criteria
| Finding |
Action |
| Failed scan QC |
Do not manufacture |
| Incomplete / delamination |
Remake |
| Deformed from hot handling |
Remake |
| Under-cured / wrong profile |
Hold; remake if needed |
| Light nubs only |
Salvage |
| Unsure |
Escalate |
12. Competency
| Requirement |
Sign-off |
| Read SOP-LAB-080 and JA |
Tech _ Date ___ |
| Demonstrates intake through bagged outbound |
Trainer _ Date ___ |
| 3 observed cases |
1. __ 2. _ 3. ___ |
| Unsupervised authorization |
_ Date ___ |
13. Troubleshooting & Escalation
| Problem |
Action |
| Cloudy after deburr |
Mineral oil coat (optional per IFU) |
| Soft / tacky |
Confirm dry + Retainer NanoCure profile |
| Deformed |
Likely removed hot — remake; cool fully next time |
SprintRay Support: 1-800-914-8004.
14. References
- SprintRay Retainer IFU-025_4 (effective 07/29/2026)
- Local IFU archive:
/workspace/sprintray-ifu/all/Retainer.txt
Smile Avenue Family Dentistry — In-House Laboratory · Internal use only
SOP-LAB-080 DRAFT FOR REVIEW · Target effective 09/10/2026 · Supersedes prior draft revisions
Review annually or when SprintRay IFU / equipment changes. Confirm all VERIFY items before training use.
