Voxel Dental Learning Hub

Which Chairside Mill Is Right for You? Comparing the Perfit Ovis, PrimeMill & FastMill.io

Written by Team Voxel | November 4, 2025

Thinking about chairside milling as part of your same-day dentistry program? Join the practices set up to offer same-day restorations, reduce outsourcing costs, and improve patient satisfaction.

Among the leading contenders in this space are the Perfit Ovis, Dentsply Sirona PrimeMill, and Glidewell FastMill.io.

Let’s break down how these three systems compare across major categories.

1. General Overview

Feature Perfit Ovis Dentsply Sirona PrimeMill Glidewell FastMill.io
Axis 4-axis 4-axis 4-axis
Workflow Type Open Semi-Closed Closed
Materials Fully sintered zirconia, lithium silicates, porcelains Zirconia, lithium silicates, PMMA Glidewell proprietary blocks

2. Material Capabilities & Versatility

Perfit Ovis supports a wide range of materials—especially valuable for labs and dentists wanting to work with both fully sintered zirconia and lithium silicates.

  • Winner for Material Versatility: Perfit Ovis

PrimeMill expands on this with zirconia, lithium silicates, and PMMA—great for more complex cases but tied to the CEREC workflow unless unlocked at a cost.

FastMill.io is limited to Glidewell's own blocks (BruxZir, Obsidian, etc.), which simplifies workflow but limits flexibility.

3. Speed & Productivity

Task Perfit Ovis PrimeMill FastMill.io
Zirconia Mill Time 13 minutes 10 minutes 40 minutes
Lithium Silicates Mill Time 8–10 minutes 5–10 minutes 15–20 minutes

PrimeMill is marginally faster, especially on lithium silicates, but Perfit Ovis performs exceptionally well with fully sintered zirconia, reducing post-processing time.

  • Winner for Zirconia Speed: PrimeMill

  • Winner for Balance of Speed & Openness: Perfit Ovis

4. Spindle, Tools, and Hardware Considerations

Feature Perfit Ovis PrimeMill FastMill.io
Dual Spindle ✅ Yes ✅ Yes ❌ No
Spindle Type Compressor-driven Compressor-driven Electric
Tool Changer ✅ Yes, 5 tools ❌ Holds 4 tools ❌ Single tool
Bur Replacement Manual by hand Specialized wrench Specialized wrench
Motor Type Servo Step w/ feedback Step

Perfit Ovis stands out for its automatic tool changer, servo motors, and dual spindle—all packed into a cost-effective, open system.

5. Software & Scanner Compatibility

Feature Perfit Ovis PrimeMill FastMill.io
IOS Scanner Compatibility Any Sirona IOS, 3Shape (limited) iTero, Medit
CAD Software Open (Exocad, etc.) CEREC Software (closed) FastMill.io Software (closed)

Perfit Ovis gives users the most flexibility to integrate with any scanner and any CAD software, offering the greatest freedom for labs and practices wanting to stay nimble.

6. Cost Comparison

Mill Price Range
Perfit Ovis $$ (Mid-tier)
PrimeMill $$$$ (High-end)
FastMill.io $$ (Mid-tier, but closed ecosystem)

Perfit Ovis strikes an ideal balance between cost and capabilities. PrimeMill offers power and speed, but at a significantly higher price point. FastMill.io is affordable but limits users to Glidewell’s closed system.

Final Verdict

Use Case Best Option
Open Workflow Flexibility Perfit Ovis
Fastest Milling Speeds PrimeMill
Lowest Operational Complexity FastMill.io
Best ROI per Restoration Perfit Ovis

Voxel Dental’s Take

Voxel Dental is proud to be the exclusive U.S. distributor of the Perfit Ovis, bringing high-speed, open-system milling to practices and labs looking to scale chairside production affordably.

With its servo-driven hardware, dual-spindle speed, automatic tool changer, and wide material compatibility, the Perfit Ovis is built for flexibility, speed, and long-term ROI.

Ready to Upgrade Your Milling Workflow?

Get in touch with Voxel Dental today to schedule a demo or get pricing information on the Perfit Ovis. Whether you’re an experienced digital lab or just getting started with chairside milling, we’re here to help you thrive.

👉 Contact Voxel Dental, click the link below to get started.