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Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

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Odonto calcifying cyst.

Nalini Aswath¹, Kader Mastan, Tirupathi Manikandan

¹Department of Oral Medicine and Radiology, Sree Balaji Dental College and Hospital, Chennai, Tamil Nadu, India.

Contemporary Clinical Dentistry

|July 16, 2013

Summary

Calcifying odontogenic cyst associated with odontoma (COCaO) is distinct from simple COC, with unique features. This study suggests classifying COCaO as a benign, mixed odontogenic tumor.

Keywords:

Odontogenic cyst calcification odontome

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Area of Science:

Oral pathology
Odontogenic tumors
Cystic lesions of the jaw

Background:

The calcifying odontogenic cyst (COC) is a rare odontogenic tumor.
A significant association exists between COC and odontoma (24% of cases).
Understanding calcifying odontogenic cyst associated with odontoma (COCaO) may clarify its pathogenesis.

Observation:

A review identified 52 cases of COCaO.
The mean age was 16 years, with a 1:1.9 male to female ratio.
The maxilla was the most common site (61.5%), with lesions typically appearing as well-defined, mixed radiolucent-radiopaque masses.

Findings:

Histologically, COCaO presents as a single large cyst with integral tooth-like structures.
Distinct differences in gender distribution and location were noted compared to simple COC.
COCaO exhibits unique histologic features differentiating it from simple COC.

Implications:

COCaO may represent a distinct entity within odontogenic lesions.
Classification as a benign, mixed odontogenic tumor is proposed for COCaO.
The term 'odontocalcifying odontogenic cyst' is suggested for this specific entity.