A review on the most important management of keratocystic odontogenic tumor.

BACKGROUND: Keratocystic odontogenic tumor (KCOT) is a recurrent benign tumor with a keratinized epithelial shape. The treatment methods in KCOT are still debated. The aim of all treatment methods is to eradicate the cyst and to reduce recurrence and surgical complications. This review article was conducted to assess the findings of studies on the dia-gnosis, management and recurrence of KCOT. METHODS: Information were gathered by searching keywords such as management, treatment, pharmacology, surgery and keratocystic odontogenic tumor in international databases such as Web of Science, PubMed and Scopus. The search period was between 2010-2020. RESULTS: Techniques used for the treatment include decompression, marsupialization, enucleation with or without adjunct, Caldwell-Luc surgery and resection. Of the 40 studies, recurrence was observed in 13 studies and the recurrence ranged from 0 to 48% in different treatment methods. CONCLUSION: Due to the high recurrence of this disease, it is suggested that long term follow-up be considered after treatment to reduce recurrence. Decision on the treatment should be made considering age, tumor size, and the site of involvement in order to reduce the economic and psychological burden of the disease.

The Incidence of Common Complications, Including Ectropion and Entropion, in Transconjunctival and Subciliary Approaches for Treatment of ZMC Fractures.

STATEMENT OF THE PROBLEM: Treating zygomaticomaxillary complex fractures (ZMC Fx) can result in postoperative complications that should be minimized by choosing the best surgical approach. PURPOSE: This study compared incidence rates of some common postoperative complications with emphasis on ectropion (an outward curling of the lower eyelid) and entropion (an inward curling of the lower eyelid) occurring with transconjunctival or subciliary approaches for the treatment of ZMC fractures. MATERIALS AND METHOD: This prospective study enrolled 80 patients with ZMC Fx who had been surgically treated. Patients were visited within one month and five months postoperatively by the same surgeon. An information checklist was completed for each patient for clinical assessment of postoperative complications. RESULTS: There was no significant difference between the two groups in the type of trauma (simple or comminuted) (p= 0.1) or the frequency of ectropion and entropion one month and five months postoperatively (p> 0.05). The same results were observed for history of massage under the eye or around the field of surgery (p= 0.151), scleral show (p= 0.414), history of post-surgical epiphora (overflow of tears and accumulation of tear) (p= 0.059), duration of the use of suspension/frost sutures (used to prevent eyelid distortion secondary to wound injury applied at the skin inferior to the incision to help elevate the lid) (p= 0.057), and the use of porex (an alloplastic material over the defect in the orbital floor) (p= 0.91). CONCLUSION: There was no significant difference between the transconjunctival approach and the subciliary approach in terms of common postoperative complications such as ectropion and entropion.