Implant Site Development Calculator

Ridge augmentation plan from defect classification.

Inputs

Ridge width (mm)

Ridge height (mm)

Seibert class (1-3)

Months since extraction

Tab to move between fields

Results

Augmentation type (0-3)

2

Width deficit (mm)3

Height deficit (mm)2

Graft volume needed (cc)0.04

Total treatment time (months)9

Surgical procedures2

Expected Width6.6

Estimated Resorption3

How to Use This Calculator

Enter current ridge width (mm) and available ridge height (mm) from CBCT measurements.
Select the Seibert defect class — I (width loss), II (height loss), or III (combined).
Enter months since extraction to account for remodeling.
Review Augmentation Volume needed, implant size compatibility, and treatment complexity.
Use these results to plan grafting procedures before implant placement.

How the result changes with Ridge width (mm)

Ridge width (mm)	Augmentation type (0-3)
3.3	3
6.55	2
10	2
14	2

What each input means

Ridge width (mm): Current buccolingual ridge width at the crest.
Ridge height (mm): Available bone height to vital structures.
Seibert class (1-3): I = width loss, II = height loss, III = combined.
Months since extraction: Time since tooth extraction in months.

What each result means

Augmentation type (0-3): 0 = none, 2 = GBR, 3 = block graft.
Width deficit (mm): Buccolingual bone width shortage.
Height deficit (mm): Vertical bone height shortage.
Graft volume needed (cc): Estimated bone graft material volume.
Total treatment time (months): Months from start to implant loading.
Surgical procedures: Number of surgical procedures required.

How this is calculated

Worked example, using the default values

Identify Input Parameters
4 parameters
Ridge width (mm) = 4, Ridge height (mm) = 8, Seibert class (1-3) = 2, Months since extraction = 6 = 4 input(s) provided
Calculate Augmentation type
2 = 2
Calculate Width deficit
Width deficit
3 = 3
Calculate Height deficit
Height deficit
2 = 2

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