Development L11 - Hard tissue formation 2 Amelogenesis Flashcards
is collagen found in enamel
no
the start of ameolgenis only occurs once the formation fo what happens
after pre-dentine forms to dentine through mineralisation
sometimes the odontoblast process extends to the ameloblast as shown in the image.
what is the name given to the process when it enters the ameloblast
enamel spindle
after a small amount of enamel has been formed. the ameloblast chnage their shape.
the secreting sides become pointy forming a process. what is the name of this process?
tomes process
as enamel formation is established, what happens to the size of the ameloblast?
once the tombes process appears the ameloblast shortens
as the tommes process lays out enamel, it does it so in a way where creates the formation of?
enamel prisms
regions formed by enamel without a tomes process are called
aprismatic
final cue for onset of amelogenesis is?
(two things)
dentine formation
breakdown of basal lamina
the organic matrix released by the ameloblast is a amorphous gel which contains enamel proteins.
- amelogenins
- enamelins
- tuftelin
which of these enamel proteins constitutes 90% of the matrix
amelogenins
of the three enamel proteins which of them strongly binds to minerals
- amelogenins
- enamelins
- tuftelin
enamelins
if something has a thixotropic effect, what does that mean?
flow under pressure
when is reduced enamel epithelium form
forms when enamel formation is complete
where is the reduced enamel epithelium derived from
reduced ameloblasts
remnants of the enamal organ (outer/inner enamel epithelium)
what does the REE protect the enamel from
resorption
prevention of cementum formation
what does the REE form once the tooth has arupted
junctional epithelium
