Sella: Orthodontics, With Points

Field notes

Sella organizes cephalometric practice into discrete drills, from naming a circled landmark to tracing all 26 points and interpreting measurements. The page describes a reference set of 1,000 de-identified cephs, with landmark placements checked by junior and senior orthodontists. Its scoring is distance-based rather than simply right-or-wrong: tolerance varies by landmark, and the example explains why Porion receives more forgiveness than Nasion. A seven-unit course and a 90-second sprint add structured and repeatable practice.