The term odontogenic keratocyst was first used by Philipsen in the year 1956. The lesion was renamed by him as keratocystic odontogenic tumor (KCOT) and reclassified as odontogenic neoplasm in the World Health Organization's 2005 edition that occurs commonly in the jaws having a predilection for the angle and ascending ramus of mandible. In contrast, KCOTs arising in the maxillary premolar regi...

JADA, Vol. 134, July 2003 877 The canine region is the most common location for the odontogenic keratocyst in the maxilla. D E N T I S T R Y & M E D I C I N E views and intraoral periapical films, in most cases are adequate to determine the location and estimate the size of an OKC. Advanced imaging techniques like computerized tomography and magnetic resonance imaging can be useful in large cas...

A case of central carcinoma of the mandible arising from a recurrent odontogenic keratocyst is reported. A 38-year-old man was admitted to the Tokai University Hospital due to postoperative infection of a recurrent odontogenic keratocyst of the left mandible. He had had a cystectomy for an odontogenic keratocyst 4 years ago. The lesion revealed bony destruction of the mandible with worm-eating ...

Objective: To assess the thickness and color of collagen fibres in various odontogenic cysts for its possible role in expansion. Study design: 49 cases of 4 types of odontogenic cysts and 5 normal mucosal tissues were selected as the study and the control group respectively. All slides were stained with both Hemotoxylin and Eosin and the picrosirius red stain. The thickness of collagen fibres w...

Carnoy’s solution was first used as a medicament in surgery by Cutler and Zollinger in 1933. The reformulated carnoy’s solution without chloroform is accepted because exposure to chloroform has been associated with cancer and reproductive toxicity. It is assumed that carnoy’s solution eradicates epithelial rests from the cyst wall and reduces the rate of recurrence. In the world health organiza...

Sir, Odontogenic keratocyst (OKC) is known for its pathognomonic features, i.e., aggressiveness and high rates of recurrence, which has been of interest and debate since the first description of this entity by Philipsen in 1956.[1] Recently, the World Health Organization (WHO) working group on odontogenic tumors recommended the term “Keratocystic Odontogenic Tumors” (KCOT) for these lesions to ...

Since the term odontogenic keratocyst first appeared in the literature, controversy has surrounded its terminology and surgical management. Recent articles would suggest that surgical opinion is still divided between aggressive radical resection and a more conservative approach. We present an interesting case of a large keratocystic odontogenic tumour shown to have eroded through bony cortices ...

actinomycosis is an anaerobic infection that involves the craniofacial region and its colonization has rarely been reported in the developmental odontogenic cysts. in the present report, a case of odontogenic keratocyst (which is now called keratocystic odontogenic tumor) with the colonization of actinomyces is introduced and its significance is discussed.