An Analysis of Dentigerous Cysts Developed around a Mandibular Third Molar by Panoramic Radiographs

Abstract

Dentigerous cysts are one of the most prevalent types of odontogenic cysts and are associated with the crown of an unerupted tooth, especially of the mandibular third molar. In this study, the characteristics of a dentigerous cyst developed around a mandibular third molar on panoramic radiographs were investigated. The panoramic images of 257 consecutive dentigerous cyst cases associated with a mandibular third molar were analyzed. The mean age of the patients was 45.9 ± 13.3 years. The size of the cyst did not significantly correlate to the age of the patient. The unilocular type (89.1%) and the crown side type (68.5%) were significant. The associated mandibular third molars had a high frequency of class III (64.6%) and position B (48.3%) in Pell and Gregory classification and of horizontal position (36.3%) in angulation. Dentigerous cysts were thought to originate and grow commonly around deeply impacted third molars. The associated third molar with dentigerous cyst tends to have a mesial inclination. Dentigerous cysts do not appear to develop gradually after the crown formation has finished, but arise at various periods randomly.

Quiste dentígero mandibular, tratamiento y rehabilitación implantoprotésica de zonas edéntulas. A propósito de un caso clínico

“…El tipo circunferencial es un reto para el diagnóstico radiográfico ya que por lo general los odontólogos están familiarizados con que la cavidad radiolúcida se extiende hasta la unión cemento-esmalte y en esta variante la cavidad radiolúcida rodea a todo el diente (Mortazavi & Baharvand, 2016). El diagnóstico diferencial debe incluir al queratoquiste odontogénico y al ameloblastoma uniquístico (Terauchi et al, 2019).…”

Antibiotic Prophylaxis on Third Molar Extraction: Systematic Review of Recent Data

“…The incomplete development of wisdom teeth can predispose to the formation of chronic inflammatory foci, making it necessary to extract the tooth. The presence of this inflammatory focus can lead in other cases to the formation of osteolytic lesions caused by the involved tooth [10,11,12].…”

Multiple Dentigerous Cysts in a Child: A Case Report and Radiographic Follow-up

“…It appears as a radiolucent unilocular area, with a well-defined corticated margin, around the crown of an impacted tooth. 4,6,7 Histologically, these lesions present a thin stratified epithelium, which is sometimes bilaminar along with keratinizing metaplasia. 6,8 Many of the odontogenic cysts share clinical and radiographic aspects, thus, the diagnosis must be based on both radiographic and histopathological findings.…”

“…6,8 Many of the odontogenic cysts share clinical and radiographic aspects, thus, the diagnosis must be based on both radiographic and histopathological findings. 4,6,7 Clinical management consists of enucleation or marsupialization, the latter being a more conservative approach. This method consists in joining the cyst cover to the oral mucosa, which allows the spontaneous eruption of the dental element when there is enough space.…”