To Compare the Effectiveness of Intermaxillary Fixation Using Erich Arch Bar and Screws in Mandibular Fractures – A Randomized Clinical Study.

Abstract

Purpose: Intermaxillary xation (IMF) is an essential principle in the management of mandibular fractures; but with the recent advent of open reduction and internal xation (ORIF), the use of IMF is almost limited to intraoperative procedure only. This study aims to investigate and compare the effectiveness of Erich arch bar & intermaxillary xation (IMF) screws for the management of mandibular fractures. Materials And Method: A randomized prospective study was conducted on 20 patients with mandibular fracture, who were randomly allotted to two groups. Group A patients received intermaxillary xation using Erich arch bar and group B patients received IMF screws. The parameters assessed were time taken for application and removal of appliance, stability of occlusion, glove perforation, and pre-and post-operative plaque accumulation. Results: The mean time for placement of the Erich arch bar was 43.10 minutes as compared to 18.60 minutes with intermaxillary xation screws. Better occlusal stability was shown with an arch bar over IMF screws, and was statistically signicant. More glove tears or penetrations occurred during application in group A than Group B (p<0.01). Also, The Plaque Index assessment on removal of appliance showed a statistically signicant difference between the two groups; higher in the arch bar group. Conclusion: This study indicates that with acceptable occlusal stability, IMF screws technique is an effective and favourable alternative to Erich arch bars for temporary intermaxillary xation in mandibular fractures.