Page 627 - My FlipBook

DEVELOPMENT OF CORD FOR PERMANENT TEETH.
637
to occupy a position directly underneath the temporary tot)th and
is
very nicely shown in Fig. 361, representing a temporary molar from
jaw ot rabbit, ihe multicuspid nature of the enamel organ for the
molar teeth is here plainly sho\yn.
Fig. 361.

CL^ir.

-cct

reiuporary Molar (Rabbit), with permanent developing underneath; the enamel has been removed
by acid 111 decalcifying process: rf, dentine; o, odontoblasts; ,nr alveolar wall Pe"nanent molar; rf^>^, dental papilla from permanent mol'ar;
of |umTi4Sf° .^, m'argin
The changes which occur in the enamel organ have been considered
under the head of the formation of the stellate reticulum and develop-
ment of the ameloblasts.
The latter we noticed briefly under the prod-
ucts of the epiblastic layer. .We will now enter into the study with
more detail. The accompanying figure is the same as that presented