Sella
Real cephs. Real tracings. Scored by orthodontists.

Learn to read a lateral ceph by playing it.

Place the point. See exactly how far off you were, and why. Multiple game types. Upload your own when you're ready!

Play today's DailyNew to cephs? Start here
80.6°
So close.1.4 mm4 in a row

Start here

CourseSeven units that build the analysis one region of the face at a time.LearnEvery point and every measurement, with a ceph you can pull apart.

Place the points

Name itA point is circled. What is it called?FindYou get the name. Put it on the ceph.TraceAll 26 points on one ceph, then the whole tracing scored at once.

Read the face

Name the angleThe measurement is drawn. Which one is it?Read the angleYou get the value. Call it high, normal, or low.DiagnoseCall the skeletal pattern by eye, then check the numbers.

Push yourself

SprintNinety seconds. As many points as you can place.LeaderboardsSprint scores, Daily streaks, best Dailies.Trace your ownYour own ceph, traced and read in your browser. It never leaves the device.

Why Sella

Built from real cephs, scored by real orthodontists.

The cephsReal cephs, real tracingsA public, de-identified set of a thousand cephs. Every point was placed by a junior orthodontist and checked by a senior one.
The scoreScored like an orthodontistTolerance is per landmark and comes from how far orthodontists actually disagree.
Your cephsYour own cephs stay yoursTrace your own runs entirely in the browser. Nothing you bring is ever sent anywhere, and there is no route that could accept it.
About the dataFree. No account required.