d da db dc dd de df dg dh di dj dk dl dm dn do dp dr ds dt du dw dx dy dz

Перевод: dentine

[существительное]
дентин

Тезаурус:

1. The latter is probably due to early stages of digestion of the dentine, with penetration between the enamel and dentine so as to produce the uneven edge to the enamel.
2. A. premaxilla of adult vole showing splitting and breakage of the incisors (11); B. enlargement of the tips of the incisors (38); C. further enlargement showing the mesial borders of the broken right incisor (on the left) and of the cracked left incisor (on the right), both showing advanced splitting and flaking of the surface enamel (cf Fig. 1.4H) (112); D. occlusal surface of vole molar (75); E. enlargement of portion of the tooth to show very extensive chipping of both enamel and dentine surfaces (188); F. lower incisor in mandible (22); G. extensive splitting and flaking of mandibular ramus of vole mandible (20); H. extensive splitting and flaking of inferior angle of the mandible (52).
3. The molars of microtine prey from these species have strongly rounded corners and deeply penetrated salient angles, with the enamel entirely removed from these projecting angles and the dentine exposed.
4. A. transverse cracking of incisor from tawny owl assemblage (30); B. breakage and digestion of end of incisor from peregrine assemblage (38); C. transverse breakage across the dentine and displaced breakage of the enamel of incisor from margay assemblage (9); D. longitudinal splitting and partial separation of enamel from dentine of an incisor from common buzzard assemblage (19); E. enlargement of same (56); F. slight separation of enamel from dentine in incisor from tawny owl assemblage (7); G. cracking of dentine in heavily digested incisor from hen harrier assemblage (19).
5. Exactly how this is achieved is not clear, for experiments using 10 per cent HCI show that although the mineral content of the bones and dentine is removed, leaving the bones with a soft rubbery texture, there is usually some enamel still left on the teeth.
6. The surface pitting of the enamel is similar, and the dentine has not been removed or digested to any great extent.
7. Tooth dentine and bone is less affected.
8. The type of digestion is in fact very similar to that described for category 3 (Fig. 3.19): on microtines the salient angles are completely denuded of enamel (Fig. 3.19 A, B), and corners of the occlusal and root angles are rounded (Fig. 3.19 C-E), and the dentine has early stages of digestion, all similar in nature but more extreme than category 3 digestion (compare Fig. 3.18 and 3.19).
9. The molars showed fine chipping of the enamel edges (Fig. 1.4E) and some splitting of the dentine, which also penetrates into the enamel (Fig. 1.4C, D).
10. The teeth of prey animals are also demineralized, and tooth enamel may be entirely removed by digestion, leaving just the dentine cores of the teeth (Fisher, 1981).
11. This is probably due to differential contraction of enamel and dentine.