Zirconia Sintering Calculator
Calculate shrinkage compensation dimensions and sintering furnace cycle time for zirconia restorations.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Inputs
Results
Final Length
12 mm
Total Cycle Time
10.1 hrs
How to Use This Calculator
- Enter the Green State Length, Width, and Height of the milled zirconia restoration.
- Set the Shrinkage Rate (%) per the manufacturer specification — typically 20-25%.
- Input the Sintering Temperature, Ramp Rate, Hold Time, and Cool Down Time.
- Review the Final Length/Width/Height to confirm the sintered dimensions match the prep.
- Check CAD Compensated Length to verify the milling offset was set correctly.
- Note Total Cycle Time (hrs) and Energy Cost to schedule furnace loads efficiently.
How the result changes with Green State Length
| Green State Length | Final Length | Total Cycle Time |
|---|---|---|
| 11 | 8.8 mm | 10.1 hrs |
| 24 | 19.2 mm | 10.1 hrs |
| 41 | 32.8 mm | 10.1 hrs |
| 55 | 44 mm | 10.1 hrs |
What each input means
- Green State Length
- Pre-sintered (green) milled dimension.
- Green State Width
- Pre-sintered width.
- Green State Height
- Pre-sintered height.
- Shrinkage Rate
- Linear shrinkage percentage (typically 20-25% for dental zirconia).
- Sintering Temperature
- Peak sintering temperature.
- Ramp Rate
- Heating rate to peak temperature.
- Hold Time at Peak
- Dwell time at sintering temperature.
- Cool Down Time
- Time to cool to room temperature.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersGreen State Length = 15, Green State Width = 12, Green State Height = 10, Shrinkage Rate = 20 = 8 input(s) provided
- Calculate Final LengthFinal Length12 = 12
- Calculate Total Cycle TimeTotal Cycle Time10.1 = 10.1
- Calculate Final WidthFinal Width9.6 = 9.6
- Calculate Final HeightFinal Height8 = 8
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