1. The document describes several radiographic findings and histopathological features of oral lesions including a radiolucency in the posterior mandible surrounded by radiopaque areas consistent with a complex odontome. 2. It also mentions an adenomatoid odontogenic tumor characterized by spindle epithelial cells forming whorled masses and duct-like structures. 3. Finally, it discusses a benign cementoblastoma seen as a radiopacity in the lower anterior jaw, clinically appearing as a unilateral swelling and showing active cementoblasts surrounding cement trabeculae radiographically.

1. Swelling seen in the posterior mandible
Radiopaque areas surrounded
by a radiolucent rim
Complex odontome

3. 1- well defined radiolucency with impacted
canine.
2- composed of spindle epithelial cells that form
whorled masses, and duct like structure.
3- AOT ( adenomatoid odontogenic tumor)

4. Multilocular radiopacity due to large number
of denticles ( looks like a bag of teeth )
Multiple teeth structure
c. Diagnosis.
Compound odontome

6. 1- multilocular radiolucency with well-defined
radiopaque margin.
2- loose C.T with strands or nests of odontogenic
epithelium.
3- Ameloblastic fibroma

7. a. Composed of loose C.T containing little
collagen and large amounts of an
intercellular substance, so it looks like
dental pulp.
b. Odontogenic myxoma

8. Benign cementoblastoma
Active cementoblasts
surrounding cement trabeculae

9. Clinical : unilateral swelling of the jaw
X-ray : radiopacity in lower anterior of
the jaw showing giantly form
cementoma

10. Lined by pseudostratified squamous epithelium ,the wall contains
lymphoid tissue

11. Dilaceration

12. Enamel pearl

14. Shell teeth