Definitive Crowns / Veneers
SprintRay Ceramic Crown — Lab Manufacturing Procedure
Smile Avenue Family Dentistry — In-House Laboratory
SprintRay Ceramic Crown — Lab Manufacturing Procedure
| Document ID | SOP-LAB-060 |
| Version | 0.1 DRAFT |
| Effective (target) | 09/10/2026 |
| Owner | Lab Technician (process owner) |
| Related | Station Job Aid SOP-LAB-060-JA |
| Status | DRAFT FOR REVIEW |
Start: Case received in Medit Lab with scan QC
End: Restoration bagged and logged in SEAZONA for outbound delivery
1. Purpose
This procedure standardizes in-house manufacturing of SprintRay Ceramic Crown definitive restorations (full/partial crowns, veneers, and related IFU indications) 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 (VERIFY path) → RayWare / Pro 2 print → wash/dry → NanoCure → finish & polish → lab clean → bag & SEAZONA outbound log.
Out of scope: Chairside scanning; clinical try-in, cementation, and patient delivery; chairside chemical disinfection; temporary Digital Temp (SOP-LAB-050); Crown HT / Midas Restore / Motto paths; non-SprintRay printers.
IFU indications include: individual/fixed definitive full single crowns; definitive partial crowns (anterior/posterior); individual/fixed single veneers; artificial teeth for removable definitive full dentures; individual removable monolithic full and partial dentures (when prescribed as Ceramic Crown path).
3. Roles
| Role | Responsibility |
|---|---|
| Clinical Assistant / Office | Sends case via Medit Lab; receives bagged restoration from lab |
| Lab Technician | Scan QC; design import/export/approve; manufacture; finish; bag; SEAZONA log |
| Trainer / Lead Lab Technician | Competency observation and sign-off |
| Doctor | Clinical indication, shade/Rx, try-in/cementation, remake authorization (outside manufacturing steps) |
4. Practice Configuration
| # | Item | Smile Avenue setting |
|---|---|---|
| 1 | Printer | Pro 2 only for this path |
| 2 | Cure unit | NanoCure — select exact Ceramic Crown resin profile (on-screen name; do not invent minutes) |
| 3 | Case intake | Medit Lab |
| 4 | Design | VERIFY — outside CAD or SprintRay Cloud Design per IFU (Lab Technician imports, exports STL, approves) |
| 5 | Wash | ProWash S available — IPA ≥ 91%. IFU primary methods: IPA bowl scrub or spray/wipe until resin-free; dry completely before cure. VERIFY whether practice standardizes ProWash S cycle vs hand-wash for filled Ceramic Crown. |
| 6 | Tank preference | Optical Polish Tank preferred (IFU); Standard Tank acceptable |
| 7 | Lab clean before bag | Soap, toothbrush, and warm water (and/or steamer), then dry. Cleaning — not chemical disinfection. |
| 8 | Design approval before print | Lab Technician |
| 9 | Case log | SEAZONA |
| 10 | Design QC thickness | ≥ 0.6 mm (IFU) |
5. Safety
- Treat uncured Ceramic Crown as a sensitizer. Work in a well-ventilated area.
- Wear nitrile gloves, protective eyewear, lab coat or gown, and face protection when handling uncured resin, IPA, or grinding/polishing.
- Do not place incompletely cured resin in the mouth. Do not bag an under-cured restoration.
- Skin contact: wash with soap and water. Persistent irritation: stop work and follow the SDS.
- Do not substitute non-validated printers, washers, cure units, or resins for this path.
- Cure liquid waste resin fully before disposal. Follow hazardous-waste rules until cured.
- Do not use expired resin.
6. Materials & Equipment
Resins
- SprintRay Ceramic Crown (shade per Rx; >50% inorganic filler by weight per IFU)
- IPA ≥ 91%
Contraindications: known allergy; intraoral contact with uncured resin; use outside IFU indications.
Equipment stack
| Step | System |
|---|---|
| Intake | Medit Lab |
| Design | VERIFY — outside CAD or SprintRay Cloud Design |
| Nest / print | RayWare → Pro 2 |
| Wash | ProWash S and/or IFU IPA methods (VERIFY practice standard) |
| Cure | NanoCure — Ceramic Crown profile |
| Case log | SEAZONA |
Design QC targets
| Area | Minimum |
|---|---|
| Restoration thickness | ≥ 0.6 mm |
Confirm shade, margins, contacts, and occlusion match Rx.
Finish / polish (IFU)
| Step | Tools / media |
|---|---|
| Support removal | Flush cutter or diamond disc |
| Polish | SprintRay Restorative Finishing Kit (preferred) |
| Optional characterization | OptiGlaze (GC) colors/stains + clear glaze |
| Post-cure wash | IPA bowl scrub or ProWash/Dry after cure (IFU) |
| Cleanup | Steamer and/or dish soap + brush + warm water; dry |
7. Process Controls
| Gate | Do not proceed if | Proceed when |
|---|---|---|
| Intake | Case missing or files unreadable | Case open with matching ID / Rx |
| Scan QC | Holes, missing prep/bite, inadequate margins | Scans usable for design |
| Printer | Not Pro 2 | Pro 2 only |
| Design | Not Lab Technician–approved; thickness < 0.6 mm | QC-A pass |
| Resin | Expired or wrong material | In-date Ceramic Crown; shaken 1 minute |
| Pre-cure | Part wet / residual liquid resin | Fully dry and resin-free |
| Cure | Wrong profile / custom times invented | NanoCure Ceramic Crown profile complete |
| Outbound | Failed QC-E; not bagged; not logged | Bagged + SEAZONA outbound ready |
8. Procedure
A. Intake & scan QC
- Open the case in Medit Lab.
- Verify patient/case ID, tooth numbers, shade, restoration type (crown / veneer / other IFU indication), due date.
- Perform scan QC: prep(s) captured; bite usable; margins adequate; no critical holes or wrong-patient files.
- QC-SCAN: Pass → continue. Fail → stop; request rescan or clarified Rx.
B. Design (VERIFY path)
- Import accepted scans into the practice design path (VERIFY: outside CAD or SprintRay Cloud Design).
- Design (or receive) definitive restoration STL per Rx.
- Export print-ready STL.
- Lab Technician approves for print.
QC-A: Thickness ≥ 0.6 mm; shade/type match Rx; margins/occlusion reasonable; STL labeled.
Fail → return to design; do not nest.
C. Nest (RayWare)
- Import approved STL into RayWare.
- Select appliance type and printer Pro 2.
- Select material Ceramic Crown (shade per Rx).
- Orientation (IFU): intaglio facing away; ~10° from anterior; desired layer thickness (RayWare typically defaults ~170 µm; Desktop IFU notes 50 µm recommended when using Desktop — VERIFY Pro 2 / Cloud default used in practice); default supports.
- Send to Pro 2 queue only.
D. Print
- Confirm resin not expired; shake 1 minute; pour to min fill; record lot in SEAZONA.
- Assign material/shade on touchscreen; confirm clean platform.
- Start print; wait for lid unlock when complete.
- QC-B: Fully formed; no delamination or major voids. Fail → remake.
E. Wash & dry
- Wash until surfaces are free of liquid resin using practice-validated method: IPA spray/wipe and/or bowl scrub (IFU Methods A/B), and/or ProWash S if practice standardizes (VERIFY).
- Fully dry before post-cure.
QC-C: Clean, resin-free, fully dry.
F. Post-cure
- Place dry restoration in NanoCure.
- Select Ceramic Crown preprogrammed profile. Do not invent custom times.
- After cure, optional IPA wash of cured device (IFU). Remove supports if not already removed.
QC-D: Fully cured; supports clean; no critical chips. Fail → remake/salvage.
G. Finish, clean, bag
- Polish with SprintRay Restorative Finishing Kit (or IFU-equivalent). Optional OptiGlaze characterization if Rx requests.
- Clean with soap + brush + warm water (and/or steamer); dry.
- Label and bag; complete SEAZONA bagged / outbound.
QC-E: Finish OK; cleaned; bagged; labeled; SEAZONA complete.
End of SOP-LAB-060. Clinical cementation and delivery are outside this procedure.
9. Case Log (SEAZONA)
| Field | Entry |
|---|---|
| Date | |
| Patient / case ID | |
| Medit Lab reference | |
| Teeth / type | ☐ Crown ☐ Veneer ☐ Other IFU: ____ |
| Scan QC | ☐ Pass ☐ Fail → returned |
| Designed by (VERIFY path) | |
| Design approved by (Lab Technician) | |
| Ceramic Crown shade + lot | |
| Printer | Pro 2 ☐ |
| Wash method | ☐ ProWash S ☐ IPA hand ☐ Both |
| NanoCure profile | Ceramic Crown ☐ |
| Lab Technician initials | |
| QC-SCAN + A–E pass | ☐ Yes |
| Remake? | ☐ No ☐ Yes — reason: __ |
| Bagged for outbound | ☐ Yes — time __ |
10. Quality Checkpoints
| ID | When | Pass | Fail action |
|---|---|---|---|
| QC-SCAN | After Medit Lab intake | Scans usable | Return to office |
| QC-A | Pre-print | Approved + ≥ 0.6 mm | Return to design |
| QC-B | Post-print | Complete geometry | Remake |
| QC-C | Post-wash | Clean + dry | Re-wash/dry |
| QC-D | Post-cure | Fully cured | Remake / salvage |
| QC-E | Before outbound | Finish + bag + SEAZONA | Hold |
11. Remake Criteria
| Finding | Action |
|---|---|
| Failed scan QC | Do not manufacture |
| Incomplete print / delamination | Remake |
| Printed on non–Pro 2 | Remake on Pro 2 |
| Wet / under-cured / wrong profile | Hold; correct or remake |
| Margin chip / critical fracture | Remake |
| Light support nubs only | Salvage → re-check QC-E |
| Unsure | Escalate to Doctor / lab lead |
12. Competency
| Requirement | Sign-off |
|---|---|
| Read SOP-LAB-060 and Job Aid SOP-LAB-060-JA | Tech _ Date ___ |
| Demonstrates Medit Lab intake, scan QC, design approve, process controls | Trainer _ Date ___ |
| Completes 3 observed cases to bagged outbound | 1. __ 2. _ 3. ___ |
| Trainer attests ready | Trainer _ Date ___ |
| Lab lead authorizes unsupervised production | _ Date ___ |
13. Troubleshooting & Escalation
| Problem | Action |
|---|---|
| Bad scans | QC-SCAN fail → office |
| Print failure | Remake; filter; verify material assignment |
| Soft / under-cured | Confirm dry + Ceramic Crown NanoCure profile |
| Shade variance | Confirm shake/stir/cure; remake if needed |
| Allergy / wrong indication | Stop — Doctor |
SprintRay Support: 1-800-914-8004 — missing NanoCure Ceramic Crown profile; repeated failures.
14. References
- SprintRay Ceramic Crown IFU-016_12 (effective 07/29/2026)
- Local IFU archive:
/workspace/sprintray-ifu/all/CeramicCrown.txt - SprintRay Restorative Finishing Kit instructions (when used)
Smile Avenue Family Dentistry — In-House Laboratory · Internal use only
SOP-LAB-060 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.