intraoral anatomy- maxillary Flashcards
the teeth sockets are bounded by a thin radiopague layer of dense bone
lamina dura
if tooth is gone, do we still have lamina dura
no (because reacts on stimulus)
space between cementum and lamina dura
PDL space
is the gingival margin of the alveolar process between teeth (radiopaque line)
alveolar crest
radipaque highest to lowest of tooth
enamel>dentin
mm from alveolar crest to CEJ
1-2mm
it appears as radiolucent space between tooth root and the lamina dura
periodontal ligament space
double peridontal ligament and lamina dura may be seen when there is a
convexity(concavities) of the proximal surface of the root resulting in two heights of contour
or could be another root we dk
the cancellous bone lies between the cortical plates in both jaws
cancellous or trabecular bone
inbetween trabecular bone we have
marrow spaces
usually at or just below the junction of the inferior end of the nasal septum and the inferior outline of the nasal aperture
anterior nasal spine
-median suture
-uniform width
-variable shape (angulation of centray ray)
intermaxillary suture
where does intermaxillary suture extend from
from alveolar crest between 8 and 9 posteriorly to distal aspect of hard palate
intermaxillary suture radiopaque or lucent?
radiolucent
-transmits nasopalatine nerves and vessels
nasopalatine canal