WHAT IS THEGOTICS?
The science that deals
with the morphological, functional, and behavioural
aspects of thegosis and the treatment of its related
physical, emotional and social pathologies.
GREEK thego, to
whet, sharpen; also metaphorically, to excite, provoke.
A phylogenetically derived behaviour that sharpens
(whets, hones) a tooth by grinding it violently against
another; the action occurs concomitantly with a
sharpening (in the metaphorical sense) of the appropriate
emotion, that is, a sharpening of the physiological
determinants that not only prepare (thegose) the tooth
but prepare the animal to grasp, attack, defend, incise
The morphological adjustment of the tooth and the
concomitant physiological excitation of the emotion are
an integral reaction to a situation of stress. The
behaviour, moreover, occurs discretely from that of
ingesting or of grasping. The inherent advantage is the
effective preparation for survival by:
1. Fighting: the tooth is a sharp weapon for attack or
2. Ingesting: the tooth is a sharp tool for incision or
3. Fighting/ingesting: the tooth is a sharp weapon/tool
* The term thegosis (Every, R.G. Symposium of vertebrate
palaeontology and comparative anatomy, London, 1967; Postilla, 1970, 143:
1-30) replaces attrition originally suggested (Every, R. G. Lancet, 1960, 2: 37-39).
That part of the crown of a tooth in the upper jaw
developed in the form of, and functioning as, a sickle.
Adjective drepanoid; plural drepana
The corresponding feature to
the drepanon in a tooth in the lower jaw.
Adjective drepanoid; plural drepanids.
Latin incuso, to
hammer; incus, anvil
The action of dividing an exogenous material by striking
it when held or confined by a tooth-surface orientated
perpendicularly to the action - such as that of an anvil
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