(1) Anatomy and Histology of the Periodontium - Introduction Flashcards
What is the periodontium?
a complex structure composed of the tissues that surround and support the teeth.
represents the tooth supporting tissues in the jaws
What structures make up the periodontium?
gingiva, periodontal ligament (PDL), cementum, and alveolar bone
Name structures A-G
What is the difference between the gingiva and mucosa?
alveolar mucosa (non-keratinised
gingiva (keratinised)
What is a ground section?
sections such as enamel which are hard
They are ground into ground sections to allow the study of the enamel/cementum
calcified
no cells
What is a decalcified section?
decalcified
see cells
cells are fixed
study soft tissues and organic components of hard tissues
How do you decalcify enamel?
weak acids
Name the calcified tissues in the oral cavity
enamel
bone
dentin
cementum
Where is cementum the thickets?
at the root apex
thin towards the cervical part
When does enamel disappear in histological section?
decalcified sections
In what state will enamel not be dissolved?
When enamel is immature
What is shown in this image?
tooth bud
the structure from which a tooth will forming formed
Why can you see the immature enamel on a decalcified section?
It is not fully calcified
What section is this an example of?
decalcified section
What section is this an example of?
ground section
What is the gingiva sulcus?
The gingival sulcus is the relative space between each tooth and the gum tissue that surrounds it. It’s a small, V-shape groove
