LabSync
Full-Arch Remake Cost: What Labs Actually Lose Per Case
A complete breakdown of labour, material and machine time for an All-on-X remake, from scan receipt to final shipment.
- A full-arch remake costs a dental laboratory $420 to $680 in direct expenses, with labour representing 55–65% of the total.
- A typical monolithic zirconia All-on-4 remake consumes 7 hours of technician time, $130 in material, and $75 in machine time, totaling approximately $485.
- Labs shipping 40 full-arch cases per month with a 4% remake rate lose $7,760 to $10,880 annually in unrecovered costs.
- The break-even remake rate for a lab with 30% full-arch margin is approximately 2.8%; above that, full-arch work becomes unprofitable.
- Pre-mill virtual try-in workflows reduce aesthetic remakes by 40–55%, according to 3Shape and exocad user group data.
- Indirect costs — including displaced revenue, expedited shipping and goodwill loss — add 15–25% to the true economic impact of a remake.
A full-arch remake typically costs a dental laboratory between $420 and $680 in direct expenses, depending on material choice and technician seniority. Most labs absorb this loss entirely, eroding lab profitability by 8–12% annually when remake rates exceed 3%. Understanding the true full-arch remake cost — broken down by labour, material and machine time — is the first step toward protecting margin and negotiating fair remake policies with referring doctors.
A full-arch remake is the complete re-fabrication of a screw-retained or cement-retained prosthesis, typically an All-on-4 or All-on-6 design, after the initial delivery fails to meet clinical or aesthetic requirements. The remake follows the same CAD-to-mill-to-finish workflow as the original case, duplicating every cost centre without generating additional revenue.
What drives the direct cost of a full-arch remake?
Three cost centres account for the entire direct expense: technician labour (design, finishing, QC), raw materials (zirconia or PMMA blanks, Ti-bases, gingival composite, glaze), and machine time (milling, sintering, 3D printing). Labour is the largest component, representing 55–65% of total remake cost in most labs. Material cost is second at 25–35%, and machine time — measured as depreciation and energy per cycle — accounts for the remaining 8–12%. Indirect costs (rent, software licences, administrative overhead) are not included in this dental lab case costing model because they are fixed and do not vary per remake.
How much technician labour does a full-arch remake require?
A full-arch remake consumes 6.5 to 9.5 hours of technician time, depending on material and finish complexity. A monolithic zirconia All-on-X with pink composite gingiva requires approximately 7 hours: 2.5 hours for CAD design and Ti-base library placement in exocad DentalCAD or 3Shape Dental System, 1 hour for nesting and toolpath generation, 2 hours for sintered-frame try-in and gingival composite layup, 1 hour for staining and glazing, and 30 minutes for final QC and occlusal adjustment. A layered zirconia framework with hand-stacked ceramic adds 2–3 hours. At a blended technician cost of $32–$45 per hour (including benefits and payroll taxes), labour alone accounts for $208–$428 of the remake cost.
What is the material cost for a full-arch remake?
Material cost for a full-arch remake ranges from $110 to $180, depending on the prosthesis design and material choice. A 12-unit monolithic zirconia bridge on four Ti-bases uses one 98 mm zirconia blank ($65–$85 for Katana UTML or similar), four pre-milled Ti-bases ($8–$12 each, $32–$48 total), 8–12 grams of pink gingival composite ($6–$10), glaze and stain consumables ($4–$6), and bonding resin ($2–$3). A PMMA provisional full-arch costs less — approximately $55–$75 in material — but requires the same labour. A milled cobalt-chrome framework with layered ceramic can exceed $220 in material alone, driven by the cost of the metal blank and feldspathic porcelain.
| Material system | Blank cost | Ti-base cost (×4) | Gingival composite | Glaze & stain | Total material |
|---|---|---|---|---|---|
| Monolithic zirconia | $65–$85 | $32–$48 | $6–$10 | $4–$6 | $107–$149 |
| Layered zirconia + ceramic | $70–$90 | $32–$48 | $6–$10 | $18–$28 | $126–$176 |
| PMMA provisional | $28–$38 | $32–$48 | — | — | $60–$86 |
| Co-Cr framework + ceramic | $110–$140 | $32–$48 | — | $18–$28 | $160–$216 |
How much does machine time add to the remake cost?
Machine time for a full-arch remake adds $45 to $75 in depreciation and energy cost. A 5-axis wet mill (Roland DWX-52DC, VHF K5, Imes-icore CORiTEC 350i) running a 90-minute full-arch nest consumes approximately $12–$18 in bur wear, coolant and electricity. A sintering furnace cycle (Nabertherm or Zirkonofen) running a 10-hour standard sinter at 1450–1530°C costs $18–$28 in energy and element depreciation, allocated per case when the furnace holds 8–12 full-arch frames. A 6-hour speed-sinter cycle raises energy cost to $22–$35 per case. 3D-printed PMMA provisionals incur $15–$22 in resin and post-cure energy per full arch. These figures assume a five-year straight-line depreciation on a $95,000 mill and a $28,000 sintering furnace.
What is the total all-in cost of a full-arch remake?
The total direct cost of a full-arch remake is $420 to $680, combining labour, material and machine time. A typical monolithic zirconia All-on-4 — the most common full-arch design in US and European labs — costs approximately $485: $280 in technician labour (7 hours at $40/hour), $130 in material, and $75 in machine time. A PMMA provisional remake costs less, approximately $350–$420, because material and machine time are lower. A layered zirconia or cobalt-chrome framework with hand-stacked ceramic can exceed $650. These figures exclude shipping, which adds $25–$45 for expedited courier delivery to meet the original due date.
How does remake frequency affect lab profitability?
A lab shipping 40 full-arch cases per month with a 4% remake rate loses $7,760 to $10,880 annually in unrecovered direct costs, assuming no remake charge-back to the referring doctor. At a typical full-arch case price of $1,800–$2,400, the lab's net margin on full-arch work drops from 28–35% to 20–27% when remakes are absorbed. Labs with remake rates above 6% see margin compression severe enough to make full-arch work unprofitable unless case pricing exceeds $2,600. According to the National Association of Dental Laboratories' 2023 industry survey, the median full-arch remake rate among US labs is 3.2%, but the top quartile of labs — those with documented QC protocols and digital case-acceptance workflows — report rates below 2%.
What are the hidden costs beyond direct remake expenses?
Indirect costs add 15–25% to the true economic impact of a full-arch remake. A remake displaces a new case in the production schedule, delaying revenue recognition by 3–5 working days and reducing technician utilisation when the queue is shallow. Expedited shipping to meet the original delivery date costs $25–$45, compared to $12–$18 for standard ground. A remake that requires a second doctor appointment generates goodwill cost — the risk of losing future case volume from that practice — which labs estimate at $200–$500 per incident based on the practice's annual case volume. Administrative time for remake documentation, communication with the doctor, and insurance pre-authorisation (if applicable) adds 45–90 minutes of non-billable staff time per case.
How can labs reduce full-arch remake cost exposure?
Four operational levers reduce full-arch remake cost exposure: tightening QC protocols to catch errors before shipment, negotiating shared-cost remake policies with high-volume doctors, implementing digital case-acceptance workflows that confirm shade and design before milling, and tracking remake root causes to eliminate systemic failures. Labs using a pre-mill virtual try-in — a PDF or web-viewer rendering of the designed prosthesis sent to the doctor for approval before nesting — report 40–55% fewer aesthetic remakes, according to data published by 3Shape and exocad user groups. A written remake policy that assigns cost responsibility based on fault (lab error versus doctor preference change) protects margin: many labs charge 50% of the original case fee for remakes driven by a change in clinical requirements after the original prescription was followed correctly.
What is the break-even remake rate for a full-arch-focused lab?
A lab whose full-arch cases represent 30% of revenue and carry a 30% gross margin can tolerate a remake rate of approximately 2.8% before full-arch work becomes unprofitable, assuming remakes are absorbed at full cost. Above that threshold, the lab must either raise full-arch pricing, negotiate remake cost-sharing with doctors, or reduce the remake rate through process improvement. Labs that price full-arch cases below $1,600 — common in high-volume, low-touch models — have almost no margin cushion and cannot sustain remake rates above 2% without operating at a loss on that service line. The calculation: if a $1,800 case yields $540 gross profit (30% margin) and a remake costs $485, the lab loses $485 on the remake and forfeits the $540 it would have earned on a new case, for a total economic cost of $1,025 per remake.
A full-arch remake costs a dental laboratory $420 to $680 in direct expenses and erodes lab profitability by $1,000 or more when opportunity cost is included. Labs that document remake root causes, implement pre-mill approvals, and negotiate fair remake policies with referring doctors protect margin and preserve the profitability of their full-arch service line. Any lab with a full-arch remake rate above 3% should treat cost reduction and process tightening as an urgent operational priority.
Sources
- NADL 2023 Industry Survey National Association of Dental Laboratories
- 3Shape Dental System user documentation 3Shape
- exocad DentalCAD user community data exocad GmbH
- IPS e.max CAD technical documentation Ivoclar Vivadent
Frequently asked questions
Should a lab charge the doctor for a full-arch remake?
It depends on fault. If the lab followed the prescription correctly and the doctor requests a design or shade change, many labs charge 50% of the original case fee. If the remake is due to lab error — poor marginal fit, incorrect shade, or broken prosthesis — the lab typically absorbs the cost to preserve the relationship.
How long does a full-arch remake delay the original delivery date?
A full-arch remake adds 4 to 6 working days to the original turnaround time, assuming the lab prioritises the remake and uses expedited shipping. Labs with dedicated remake queues and speed-sinter furnaces can compress this to 3 days, but only by displacing other scheduled work.
What is the most common reason for a full-arch remake?
Aesthetic rejection — typically shade mismatch or gingival contour dissatisfaction — accounts for 40–50% of full-arch remakes, according to the NADL's 2023 survey. Occlusal issues and marginal fit problems each represent 15–20%, and fractured prostheses or Ti-base failures account for the remainder.
Can a lab reduce full-arch remake cost by outsourcing milling?
Outsourcing milling to a centralised service bureau reduces in-house machine time cost but adds 1–2 days to turnaround and introduces a $60–$95 per-case milling fee. For labs with high utilisation on their own mills, outsourcing a remake is rarely cost-effective unless the mill queue is completely full.
How does a 3D-printed full-arch remake compare in cost to a milled one?
A 3D-printed PMMA full-arch remake costs $350–$420, approximately 15–20% less than a milled monolithic zirconia remake, because resin material and print time are cheaper than a zirconia blank and sinter cycle. However, printed prostheses are typically provisionals, not definitive restorations, so the comparison applies only to interim cases.
