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NASAL TEETH - A RARE CASE

                                Eruption of the teeth into the nasal cavity is a rare phenomenon.Ectopic tooth eruption in a non-dental area is a rare entity,  whereas in oral cavity it is most common. The ectopic development of teeth in non-dental localizations have been reported in the nasal cavity, chin, maxillary sinus, mandibular bone, palate and orbital cavity.


INTRODUCTION : 

Ectopic tooth eruption in a non-dental area is a rare entity, whereas in oral cavity it is most common. The ectopic development of teeth in non-dental localizations have been reported in the nasal cavity, chin, maxillary sinus, mandibular bone, palate and orbital cavity.

 THE ABOVE PHOTOGRAPH DEPICTS THE NASAL ERUPTION OF THE TEETH IN A 8YR OLD BOY



The standard treatment for an ectopic tooth is extraction of the tooth.Facial pain, epistaxis, purulent rhinorrhoea, external nasal deformity, headache, swelling and epiphora related nasolacrimal duct obstruction can be seen.





                                Some of the eruptions may be seen in the sinus's too.



Tooth development results from an interaction between the oral epithelium and the underlying mesenchymal tissue. This process begins in the sixth week in utero with the formation of maxillary and mandibular dental lamina in the region of the future alveolar process. This ectodermal derivative undergoes proliferation to form the permanent dentition between the 5 th and 10 th months, each mature tooth consisting of a crown and a root. Abnormal tissue interactions during development may potentially result in ectopic tooth development and eruption. Ectopic eruption of a tooth into a region other than the oral cavity is rare although there have been reports of tooth in the nasal septum, mandibular condyle, coronoid process . and the palate. Occasionally, the tooth may erupt into the maxillary antrum and present with local sino-nasal symptoms attributed to recurrent or chronic sinusitis. The diagnosis of this condition can be made radiographically with plain sinus X-rays and CT scans taken in axial and coronal sections.

Dentigerous cyst is the most common of all follicular cysts, more common in males, occurring in the second or third decade of life. About 70% of dentigerous cysts occur in the mandible and 30% in the maxilla.  If infected, the treatment of choice is complete enucleation of the lesion intraorally with removal of the associated tooth. It is also important to completely remove all diseased antral tissues and thoroughly assess all resected soft tissue histologically. Only a few cases of "ectopic" molars which have been displaced by progressively growing dentigerous cysts have been reported in medical literature.  It is believed that the displacement of tooth buds by the expansion of these dental cysts results in the displacement of the tooth to other areas, which is attributed to the ectopic appearance of the third molar in this patient. Recurrence and malignant or ameloblastic transformation following a dentigerous cyst is rare when compared to odentogenic keratocyst. Close observation and follow-up with periodic radiographs is required.

The treatment of an ectopic tooth in the maxillary sinus is usually removal, as if left untreated, it has the tendency to form a cyst or tumor. Caldwell-Luc procedure was followed in this case as the ectopic tooth was the cause of recurrent sinusitis and purulent rhinorrhea inspite of administering antibiotics repeatedly. The importance of ruling out related dental conditions in any patient presenting with such signs and symptoms of the head and neck region cannot be overemphasized.

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