A Rare Incidence of Dentigerous Cyst Associated with Impacted Mandibular Canine.

The dentigerous cyst, theoretically, must be associated with the crown of an unerupted or developing tooth or an odontoma. Most cases are reported in second and third decade of life, and it shows slight male predilection. In most of the cases, dentigerous cyst is an accidental finding when a radiograph is taken for some other therapeutic purpose. A dentigerous cyst is a benign lesion, but it has the potentiality to become an aggressive lesion. Radiographic fi ndings cannot be considered as final tool to diagnose dentigerous cyst because odontogenic keratocysts, unilocular, ameloblastomas, and many other tumors show similar radiological fi ndings as that of the dentigerous cyst. Thus, histopathological examination is utmost important in the large cystic lesion. Cyst size and site, involvement of dentition and surrounding structures should be considered while treatment planning. On the basis of these criteria, different treatment modalities should be chosen. This includes cyst enucleation and extraction of impacted tooth, cyst enucleation, and preservation of impacted tooth or decompression with surgical access. Th e most common sites for dentigerous cysts are mandibular third molar region and maxillary canine region, as they are the most commonly impacted teeth. We are presenting a case of dentigerous cyst at an unusual place, mandibular canine region.

Treatment of Unilateral TMJ Ankylosis in a Pediatric Patient with Temporalis Fascia Flap A Case Report.

The definite cause of temporomandibular joint (TMJ) ankylosis is still an unknown fact. TMJ ankylosis may result from, infection, trauma or insufficient surgical treatment of the mandibular condyle region. Different techniques have been described so far for the treatment of TMJ ankylosis, but no technique has successfully given uniform results. Relapse causing limited mouth opening, infection, open bite, reankylosis are the complications. Many authors agree that aggressive physiotherapy immediately after the surgical procedure, interpositional graft as spacer and wide bone resection are the basic principles in treating TMJ ankylosis. In this article, we discussed a case of unilateral TMJ ankylosis, in a 9-year-old boy, treated with the intre-positional gap arthroplasty with superficial temporalis fascia flap.