If you've opened a 3D face scan in MetiSmile and been greeted by a mess of floating abbreviations — Tr, Al, Pm, Ns, Ex, and so on — you're not alone. For many dentists and orthodontists, these letters can feel like alphabet soup. But in reality, these markers are the foundation of modern facial analysis in orthodontics, implant planning, and digital smile design.

Orthodontic practices face increasing demands for accurate planning, precise measurement, mid-case tracking, and detailed evaluation of trea