7. MANDIBLE
7.1 ODONTOGENIC(ODONTOMA)
These lesions arise from odontogenic remnants (tissue involved in
tooth formation) and are invariably benign.
7.1.1 FOLLUCULAR CYSTS (DENTIGEROUS CYTS)
These cysts are derived from the dental lamina, the outer enamel
epithelium of developing teeth. A remnant of this tissue is
sequestered during development. It occurs in women between 30-40
years
Clincially, these lesions present with an enlargement of ramus of
the mandible and on absent molar tooth.
Microscopically, these cysts have a fibrous wall lined with
squamous epithelium. Cysts develops at the site of an un-erupted
tooth.
X-ray shows the cyst with unerupted tooth in its cavity.
Treatment is intraoral excision of the cyst with its lining
membrane.
7.1.2 RADICULAR CYST
These arise due to inflammation of the epithelial structure
involved in formation of the root. It is enclosed within a dense
connective tissue lining covered internally by squamous
epithelium.
Treatment is extraction of the tooth and exicision of the cyst
lining.
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