A Case of an Extensive Dentigerous Cyst in the Maxillary Sinus Leading to Epiphora and Nasal Obstruction

Dacryocystitis following a nasolacrimal duct obstruction caused by an ectopic intranasal tooth in a dog

“…Similar cases of unerupted teeth have been described in human literature in which the teeth were endoscopically or surgically removed . Surgical removal of the tooth was performed by means of a Caldwell–Luc approach when large dentigerous cysts surrounded the ectopic tooth, or when the tooth could not be approached endoscopically . Removal of the tooth in this case would require an oral or nasal approach to the nasal cavity due to the size of the tooth and possible complications include chronic nasal discharge and persistent epiphora.…”

“…Computed tomography was elected in this case to determine the exact position of the tooth and define surgical options and a possible approach . Similar cases of unerupted teeth have been described in human literature in which the teeth were endoscopically or surgically removed . Surgical removal of the tooth was performed by means of a Caldwell–Luc approach when large dentigerous cysts surrounded the ectopic tooth, or when the tooth could not be approached endoscopically .…”

“…Depending on the location of the tooth, the NLD may be constricted leading to a cystic dilation of the NLD over time. Several case reports exist in human literature describing NLD blockage by unerupted teeth . In veterinary medicine, horses are a species known for ectopic teeth.…”

Odontogenic Sinusitis Caused by an Inflammation of a Dentigerous Cyst and Subsequent Finding of a Fibrous Dysplasia. A Case Report

“…Most authors use 3D imaging to find the aethiological cause of maxillary sinusitises [2, 7, 23, 24]. In a survey conducted among otolaryngologists, CT scanning was the preferred imaging technique for the diagnosis of odontogenic maxillary sinusitis [6].…”

“…A dentigerous cyst may remain asymptomatic for several years [19, 23, 30]. Treatment includes the enucleation of the cyst and impacted upper third molar [2].…”