Summary
Samenvatting anatomie TKG1
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Samenvatting van de kennisclips over de anatomie van de tand. Uitgebreid met plaatjes.
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ANATOMIEMORFOLOGIE VAN DENTINE EN GLAZUUR
Zaagcoupe tand verticaal
D = dentine, dentinekanaaltjes.
G = glazuur
P = pulpa
R = lijnen van Retzius, glazuur wordt in laagjes afgezet.
Glazuurstaafjes; prismata, lopen vanaf de pulpakamer naar de oppervlakte
van het glazuur.
Horizontale zaagcoupe
R = lijnen van Retzius
Onregelmatigheden in de afzetting van het glazuur
L = lamel
T = tuft
Glazuurstaafjes doorsnijden de lijnen van Retzius.
Dentinekanaaltjes
Dentinekanaaltjes
lopen van de glazuur-dentine grens richting de pulpa. Hierlopen de uitlopers van de
odontoblasten. Het cellichaam van iedere odontoblast bevindt zich aan de binnenkant van
het dentine in de pulpakamer.
MORFOLOGIE VAN PULPA EN CEMENT
Pulpa: horizontaal
Predentine is lichter, omdat
het nog niet gemineraliseerd
is.
Uitlopers odontoblasten
lopen door de
dentinekanaaltjes naar de
glazuur-dentine grens.
, Pulpa: detail
Donker paarse stippen zijn de kernen van
de odontoblasten.
Cellen dicht bij de pulpa zijn de
preodontoblasten.
In de pulpa ligt het losmazige bindweefsel.
Heldere laag pulpa is de Zone van Weil,
hier liggen minder cellen.
Plexus van Raschkov
In de heldere zone liggen wel heel veel
zenuwen, plexus van raschkov.
Pulpa: horizontaal
Z = zenuw
B = bloedvat
- dikwandige arteriën
- dunwandig venen
Cement: verticaal
acellulair cement
C = cement
D = dentine
- geen cellen
- cement met incrementielijnen,
groeilijnen
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