Fixed Bridge Design Calculator

Pontic and retainer design from Ante's law analysis.

Pontic span (teeth)

Abutment perio status (1-3)

Abutment root area (mm²)

Pontic root area (mm²)

Tab to move between fields

Ante's law ratio

2.4

Adjusted Ante's met (0/1)1

Total bridge units3

Viability score (0-100)100

Pontic design (1-4)3

Est. lab fee ($)$1,050.00

Antes Law Met1

How to Use This Calculator

Enter Pontic span (teeth), Abutment perio status (1-3), and Abutment root area (mm²).
Set Pontic root area (mm²).
Review the Ante result.
Use Adjusted Ante and Total bridge units to inform your decision.

How the result changes with Pontic root area (mm²)

Pontic span (teeth): Number of missing teeth to be replaced.
Abutment perio status (1-3): 1 = healthy, 2 = moderate bone loss, 3 = severe bone loss.
Abutment root area (mm²): Average root surface area of each abutment tooth.
Pontic root area (mm²): Average root surface area of each tooth being replaced.

Ante's law ratio: Abutment area / pontic area (should be >=1.0).
Adjusted Ante's met (0/1): 1 = meets Ante's law after periodontal adjustment.
Total bridge units: Total number of units (abutments + pontics).
Viability score (0-100): Overall bridge viability assessment.
Pontic design (1-4): 1=ridge lap, 2=modified ridge lap, 3=ovate, 4=hygienic.
Est. lab fee ($): Estimated total laboratory fee.

Identify Input Parameters
4 parameters
Pontic span (teeth) = 1, Abutment perio status (1-3) = 1, Abutment root area (mm²) = 300, Pontic root area (mm²) = 250 = 4 input(s) provided
Calculate Ante's law ratio
Ante's law ratio
2.4 = 2.4
Calculate Adjusted Ante's met
Adjusted Ante's met
1 = 1
Calculate Total bridge units
Total bridge units
3 = 3