Planes and angles
True vertical
A vertical through the subnasale with the head in natural position (Arnett and Bergman). The soft-tissue chin of a balanced male profile sits a few millimetres behind it; a retracted or Class II profile sits well behind it.
What it is
A vertical through the subnasale with the head in natural position (Arnett and Bergman). The soft-tissue chin of a balanced male profile sits a few millimetres behind it; a retracted or Class II profile sits well behind it.
How the Codex reads it
READ item A2: a retracted profile makes chin projection a candidate for Install, under the anti-feminisation restraint that favours the corners over the centre.
Questions
What is the true vertical?
A vertical through the subnasale with the head in natural position (Arnett and Bergman). The soft-tissue chin of a balanced male profile sits a few millimetres behind it; a retracted or Class II profile sits well behind it.
How does the Band Codex read the true vertical?
READ item A2: a retracted profile makes chin projection a candidate for Install, under the anti-feminisation restraint that favours the corners over the centre.
Sources
- Arnett G.W., Bergman R.T. Facial keys to orthodontic diagnosis and treatment planning. American Journal of Orthodontics and Dentofacial Orthopedics, 1993.The true vertical through subnasale with the head in natural position.
Every number in this atlas cites the study it came from. The full method, including what this site withholds on purpose, is on sources and method.
This site teaches one level above the Codex's working manual: the architecture is public, the coordinates are not. This page withholds entry points, landmark constructions, volumes and read-to-point routing, exactly as the atlas does. What is shown and what is withheld.