A Case of Orthokeratinized Odontogenic Cyst Suspected to be a Radicular Cyst

Abstract

This report describes a case of orthokeratinized odontogenic cyst arising in the mandibular molar region of a 39-year-old man. Under the initial clinical diagnosis of radicular cyst, root canal treatment was performed on the mandibular right second molar. The treatment that continued for six months did not achieve healing. Subsequently surgical intervention was selected since the tooth fracture was found, and the prognosis was judged to be poor. After atraumatic tooth extraction, the apical cystic lesion was enucleated, and the tooth was replanted. A definite diagnosis of orthokeratinized odontogenic cyst was made by histopathological examination of the biopsy specimen. The radiograph taken seven months after the operation showed an improvement in the radiolucent lesion. No clinical signs of tooth mobility, pain, and swelling were present. The tooth was then successfully retained with the final restoration. Careful follow-up is needed in order to detect any signs of recurrence.

Orthokeratinised odontogenic cyst mimicking periapical cyst

“…Wright and Wysocki18 emphasised that OKC should also be included in the differential diagnosis of radiolucencies occurring in the periapical region of non-vital tooth. Onuki et al 19 reported a case of OOC which was suspected to be a radicular cyst. Cyntia et al 20 highlighted the importance of including OOC in the differential diagnosis of developmental odontogenic cysts with secondary infection.…”

Orthokeratinizing odontogenic cyst of maxilla with complex odontoma

“…OOCs are difficult to diagnose due to lack of specific clinical and radiographic characters. [2] A total of 48% of OOCs were discovered as incidental findings, 41% first presented with swellings and 24% first presented with pain. [1] A predilection for the mandible, particularly the posterior sextants (68%) has been reported in the literature.…”

“…It appears to represent an uncommon but consistent group of odontogenic developmental cysts that cannot be classified as other established cyst types and should therefore constitute a separate clinical entity. [2]…”

“…[12] OKC has been renamed as “keratocystic odontogenic tumor” (KCOT), because it more appropriately reflects its local destructive and aggressive behavior. [3] Odontomas are hamartomas composed of various dental tissues like enamel, dentin, cementum, and sometimes pulp.…”

Abordagem clínica e terapêutica sobre o Tumor Odontogênico Ceratocístico: uma revisão abrangente da literatura

“…1. 38 casos -Somente aumento de volume 17,20,21,[23][24][25][26][28][29][30]35,[39][40][41][46][47][48]52,53,56,59,63,64,67,[70][71][72]75,81,89,92 ; 2. Aumento de volume associado a:…”