Partial Mandibulectomy Rehabilitation of Keratocystic Odontogenic Tumour Case in Neutral Zone.

Mohamad Syahrizal Halim,Tengku Fazrina Tengku Mohd Ariff

doi:10.1155/2018/8918673

Abstract

Restoring the patient's missing dentition secondary to partial mandibulectomy of KCOT is important to improve function and aesthetics. The patient presented with a significant loss of alveolar bone which makes the fabrication of rehabilitation prosthesis a significant challenge. A neutral-zone impression technique is helpful in determining the exact space to be restored without compromising aesthetics and it avoids functional muscle displacement that may displace the prosthesis. This article describes the neutral zone impression technique to record a patient's functional muscular movement in guiding the setting of acrylic teeth and denture flange in the neutral zone area. This technique is very useful for postsurgical cases with significant loss of alveolar bone.

Highlights

Keratocystic odontogenic tumour (KCOT) is a benign intraosseous neoplasm which can occur in a unicystic or multicystic form and originate from odontogenic tissue [1]
Known as an odontogenic keratocyst, WHO has reclassified this lesion into a new name to reflect the aggressive nature of this benign neoplasm
KCOT surgical treatment may cause the patient to have functional and aesthetic problems. This is due to the aggressive surgical treatment performed by the surgeon which includes at least 2 mm surgical removal from the margin’s lesion

Summary

Introduction

Keratocystic odontogenic tumour (KCOT) is a benign intraosseous neoplasm which can occur in a unicystic or multicystic form and originate from odontogenic tissue [1]. Its aggressive and infiltrative behaviour is due to its propensity to grow inside the jaws, with minimal expansion [2] These features warrant aggressive surgical removal to prevent recurrence of the lesion. KCOT surgical treatment may cause the patient to have functional and aesthetic problems. This is due to the aggressive surgical treatment performed by the surgeon which includes at least 2 mm surgical removal from the margin’s lesion. This is done to prevent recurrence as the lesion can infiltrate the head and neck bone. The overall rate of occurrences of postsurgical treatment of KCOT are 23.09% [3]

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