Observed arrival · 2026-08-28
Sella, the cephalogram game
A free browser game that teaches orthodontic cephalometric tracing by having players place landmarks, identify angles, and diagnose patterns.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The exercises cover both isolated recognition and complete analysis: learners can name a circled landmark, place all 26 points, read an angle, or call a skeletal pattern before checking the numbers. Scoring uses landmark-specific tolerances derived from orthodontists’ disagreements, including more forgiveness for Porion than Nasion. A seven-unit course and handle-based leaderboards add progression and repeat-practice structure.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue