All-on-4 Planning Calculator

Cantilever and angulation planning index.

Arch length (mm)

Posterior cantilever (mm)

Anterior implant angle (deg)

Posterior implant angle (deg)

Tab to move between fields

A-P spread (mm)

Cantilever ratio0.41

Cantilever acceptable (0/1)1

Max cantilever (mm)43.5

Teeth in prosthesis11

Tilted implant length (mm)15

How to Use This Calculator

Enter Arch length (mm), Posterior cantilever (mm), and Anterior implant angle (deg).
Set Posterior implant angle (deg).
Review the A-P spread (mm) result.
Use Cantilever ratio and Cantilever acceptable (0/1) to inform your decision.

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