Bone Graft Volume (Perio) Calculator
Graft material from defect dimensions.
Inputs
Results
Total graft volume (cc)
0.05
Defect volume per site (mm³)42
Membrane length (mm)8
Regeneration success (%)65%
Expected bone fill (%)60%
Healing time (months)8
Membrane Width10
How to Use This Calculator
- Enter defect depth (mm) and defect width (mm) from probing and radiographic measurements.
- Set the number of remaining bony walls (1, 2, or 3) for the intrabony defect.
- Enter the number of defect sites to be grafted in this procedure.
- Review Graft Volume (mm³ and cc), recommended graft material quantity, and membrane size.
- Order graft material based on the calculated volume plus a 10–20% overage buffer.
How the result changes with Defect depth (mm)
| Defect depth (mm) | Total graft volume (cc) |
|---|---|
| 2.4 | 0.03 |
| 5.9 | 0.06 |
| 10 | 0.11 |
| 14 | 0.15 |
What each input means
- Defect depth (mm)
- Vertical depth of the intrabony defect.
- Defect width (mm)
- Buccolingual width of the defect.
- Defect walls (1-3)
- Number of remaining bony walls: 1-wall, 2-wall, or 3-wall defect.
- Number of sites
- Number of defect sites to be grafted.
What each result means
- Total graft volume (cc)
- Total bone graft material needed for all sites.
- Defect volume per site (mm³)
- Calculated volume of each defect.
- Membrane length (mm)
- Recommended membrane length.
- Regeneration success (%)
- Expected success rate based on defect morphology.
- Expected bone fill (%)
- Anticipated percentage of defect fill.
- Healing time (months)
- Recommended healing period.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersDefect depth (mm) = 5, Defect width (mm) = 4, Defect walls (1-3) = 2, Number of sites = 1 = 4 input(s) provided
- Calculate Total graft volumeTotal graft volume0.05 = 0.05
- Calculate Defect volume per siteDefect volume per site42 = 42
- Calculate Membrane lengthMembrane length8 = 8
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