VM periodontium Flashcards
what type of PDL fibre is this?
bundles circumferential fibres
what type of PDL fibre is this?
transeptal fibres
what are these structures?
osteocytes in their lacunae
what is this cell?
osteoclast
compare cementum at root to crown
cementum at root is thicker and cellular
what are these lines in the cementum?
incremental lines
look at this silver stained PDL
what are these structures in the PDL called?
principle collagen fibres
next to cementum
when collagen fibres enter bone from the PDL what happens?
they are mineralised and called sharpey fibres
look at this silver stained PDL
what is this structure marked in red?
Sharpey fibres
learn this
identify the types of cementum labelled
acellular cementum at top
cellular cementum at bottom
look at this image of cellular cementum (root apex)
what are these structures?
cementocyte lacunae (dark centre)
canaliculi (dendritic extensions)
is there anything unusual about the cementum?
Very thick cementum at root unusual -> Hypercementosis
what are these lines in the cementum?
incremental lines
what are these dark dots/cells in the cementum?
cementocyte lacunae
