Epithelial cells of

Malassez

Remnants of the

sheath of Hertwig

impacted teeth and dentigero

us cysts(17

trauma or chemical insult in

utero

invagination of the

basal cell of epithelium

into the developing jaw bone

Heterotopic epithelium

Disturbance of

developing enamel

Basal cells of surface

epitheliu

Epithelium of

odontogeni

abnormal cell growth infiltrates and destroys surrounding bony

tissues in the mandible or maxilla

Ameloblastoma

Ameloblastoma pathophysiology:

Ameloblastoma is believed to be derived from:

Epithelial cells of Malassez.

Remnants of the sheath of Hertwig contained in the periodontal ligament of the erupted teeth.

Epithelium of odontogenic cysts- 17% are associated with impacted teeth and dentigerous cysts.

Disturbance of developing enamel organ- may result from trauma or chemical insult in utero.

Basal cells of surface epithelium- thought to result from invagination of the basal cell of epithelium into the developing jaw bone.

Heterotopic epithelium- epithelium from other areas of the body (e.g. pituitary gland)other than the jaw.