The effect of x-ray irradiation on the incisors of the Syrian hamster

Autor: George W. Burnett, Herman Medak, John S. Oartel
Rok vydání: 1954
Předmět:
Zdroj: Oral surgery, oral medicine, and oral pathology. 7(9)
ISSN: 0030-4220
Popis: With the exception of the odontogenic epithelium, the reaction of the tissues of the continually growing incisors of Syrian hamsters was essentially the same as that previously reported in the literature for similar tissues of white rats exposed to similar doses of irradiation. The odontogenic epithelium of the hamster that continued to grow after irradiation was reduced to a thin strand of cuboidal or squamous cells. Local proliferation of the distorted strands of displaced epithelium resulted in several knoblike areas. The earliest stage of cellular proliferation resulted in an enlarged strand of tissue without keratinization. In an intermediate stage, as the cellular structure continued to proliferate, keratin was deposited. In the latest stage of development observed, an enlarged cyst filled with keratin had formed. The odontogenic epithelium of the hamster did not resume its usual function of forming normal tooth tissues within the period in which the animals were observed.
Databáze: OpenAIRE