Orthognathy
Orthognathy ( agr. Gnathos " jaw ") generally refers to a certain position and shape of the jaw in the anatomy of the facial skull .
Dentistry
In dentistry, the normal, vertical position of the teeth in the human jaw is called orthognathy . In profile angles of 85 ° or more is called orthognathic , in such less than 80 ° from prognathism or prognathism (board of the upper jaw member ) and at angles between 80 ° -85 ° from Mesognathie . Orthognathy is thus the name for the neutral position of rows of teeth and jaw arches, the so-called neutral bite .
Comparative anatomy of the vertebrates
In evolutionary biology or the comparative anatomy of vertebrates, orthognathy denotes the tendency to flatten and perpendicular the facial skull (especially the teeth) in line with the hominids.
insects
In insects, orthognathy describes a head position in which the mouthparts are directed downwards.
literature
- Michael Schmitt (Ed.): Lexikon der Biologie , Volume 6. Herder, Freiburg im Breisgau 1986, article "orthognath", ISBN 3-451-19647-6 , p. 256.
- Duden: Dictionary of medical terms. 8th edition, Mannheim 2007, article "orthognath", ISBN 978-3-411-04618-8 , p. 565.
Individual evidence
- ↑ a b Michael Schmitt (Ed.): Lexikon der Biologie , Volume 6. Herder, Freiburg im Breisgau 1986, article "orthognath", ISBN 3-451-19647-6 , p. 256.
- ^ Duden: Dictionary of medical terms. 8th edition, Mannheim 2007, article "orthognath", ISBN 978-3-411-04618-8 , p. 565.
