How do I run Steiner analysis online?
Register in CephCalc, upload a lateral cephalogram, select the Steiner preset, and place landmarks S, N, A, B, and incisor axes. The SNA, SNB, ANB, and incisor block table appears automatically, saves to the patient chart, and exports to PDF.
Which measurements does Steiner analysis calculate?
The Steiner preset calculates SNA, SNB, ANB, incisor inclinations I-SN and i-MP, interincisal angle Ii, and SN-MP and SN-NL. These values describe sagittal relations, incisors, and basic vertical context on one tracing.
How should a resident read ANB together with the incisors?
First assess SNA and SNB: which jaw lags relative to SN. Then review I-SN and i-MP: a common Class II compensation is proclined upper incisors with a moderate ANB. Record both blocks in the treatment plan instead of reducing the diagnosis to one number.
When choose Steiner rather than McNamara or Wits?
Steiner answers the primary skeletal–incisor question. McNamara adds linear jaw lengths; Wits refines sagittal relations when ANB is doubtful. On one film in CephCalc you can switch presets without re-tracing and compare tables in the record.
Is Steiner enough for extraction planning?
Extraction decisions usually need soft-tissue profile with Holdaway or Merrifield and sometimes Jarabak growth type. Steiner covers skeleton and incisors but does not replace lip assessment or vertical prognosis in a growing patient.