Biometric index

Little index online — anterior irregularity

R. M. Little · 1975

Неровность

Little quantifies anterior crowding as millimetres of contact displacement. CephCalc stores the result next to Bolton and the space plan.

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What the index measures

R. M. Little summed displacements of anterior contact points for before/after and relapse tracking.

Clinical focus

3–3 crowding in millimetres — not full-arch transverse width.

When to apply

Treatment start, retention, serial comparison. Does not replace Bolton for jaw tooth-size discrepancy.

Reference norms

Sum of contact displacements in mm for the anterior segment

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Calculate on your models

Open the biometrics module in CephCalc, choose the dentition stage, and enter measurements for “Little”. The PDF saves to the patient chart next to the treatment plan.

Interactive arch diagram
Outputs and PDF without Excel
Links to plan, braces and aligners
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FAQ

How does Little differ from space deficiency?

Little measures anterior contact irregularity. Treatment-plan space deficiency covers wider segments and mechanics.