Tooth axis

Tooth angulations

As a tooth axis which is tooth longitudinal axis (also the central axis ) of a tooth , respectively. It is defined as the connecting line between the root tip in single-rooted teeth and the center of the incisal edge and in multi-rooted teeth between the root bifurcation ( bifurcation , trifurcation ) and the middle of the occlusal surface. The tooth axes of the front teeth ( canines and incisors ) in the upper jaw are inclined distally in the normal position. The functional tooth axis results from the holding effect in the tooth socket when most of the Sharpey fibers are tense under the action of force.

Tooth angulations

The tooth angulations (tooth angle position) according to Schumacher or LF Andrews describe the mesio-distal inclination of the teeth, i.e. the inclination in the sagittal plane .

See also

• Curvature feature
• Root feature
• Angular feature

Individual evidence

1. ↑ Hans H. Schulz: Modeling and anatomy of the tooth crown . Verlag Neuer Merkur GmbH, January 1997, ISBN 978-3-929360-14-1 , p. 21.
2. ↑ Georg Risse, The Angulation of the First Permanent Upper Molars, the Key to Functional Occlusion ( Memento of the original from March 4, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , Umf. Dentof. Orthod. und Kieferorthop., 1-2, 2005. Retrieved November 15, 2015. 

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