An infected dentigerous cyst associated with an impacted permanent maxillary canine, inverted mesiodens and impacted supernumerary teeth

Abstract

A dentigerous cyst is an odontogenic cyst associated with the crown of the impacted or unerupted teeth. Such cyst remain initially completely asymptomatic unless when infected and can be discovered only on routine radiographic examination. Here, such a case of dentigerous cyst, which was discovered on routine radiographic examination, is discussed here.

Dentigerous Cyst in the Maxillary Anterior Region of a Pediatric Patient

“…8 Three types of dentigerous cyst have been radiographically described by Thoma-Robinson-Bernier: The central variety, in which the radiolucency surrounds just the crown of the tooth, with the crown projecting into the cyst lumen. In the lateral variety, the cyst develops laterally along the tooth root and partially surrounds the crown, and the circumferential variant exists where the cyst surrounds the crown and extends down along the root 9 (►Fig. 4A, B, C).…”

“…14 As the lining is derived from reduced enamel epithelium, it is generally 2 to 4 cell layer thick primitive type. 9 The impacted tooth exerts a pressure on follicle, which obstructs the venous outflow and induces a rapid transudation of serum across capillary walls. The increased hydrostatic pressure exerted by pooling of this fluid causes separation of crown from follicle with or without the reduced enamel epithelium.…”

Case Report: Accidental Finding of Dentigerous Cyst in Unerupted Maxillary Incisor

“…The intraoral periapical radiograph and Cone beam computed tomography revealed a root canal treated right lateral incisor with periapical radiolucency and slight radioopacity associated with it. CBCT also revealed maxillary right impacted canine (13) and also an periapical radiolucency about 1cm × 1 cm associated with teeth and causing upward displacement of the maxillary sinus lining (Figure 1).…”

“…A working definition to rule out this radiographic confusion is that, a DC exists only when the distance between the crown and dental follicle is >2.5 to 3.0 mm (7). However, some DC may grow to considerable size causing painless bony expansion until secondary infected (13). Radiographs alone may not be sufficient to show the full extent of the lesion, and computed tomography (CT) imaging may also be necessary to avail the exact information about the lesion's size, content, and origin.…”

Immunohistochemical Expression of CDC7 in Dentigerous Cyst, Odontogenic Keratocyst and Radicular Cyst

“…Dentigerous cyst (DC) is the most common developmental odontogenic cyst that involves about 24% of the epithelium lined cysts of the jaws (2,3). This slow-growing cyst involves the crown of anunerupted tooth due to changes in the reduced enamel epithelium after completion of amelogenesis that results in aggregation of liquid between the reduced enamel epithelium and tooth crown (2)(3)(4)(5). Odontogenic keratocyst (OKC) is one of the common cysts that accounts for about 11% of all developmental odontogenic cysts (6) originating from the remnants of the dental lamina.…”