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Natl J Maxillofac Surg. 2018 Jul-Dec;9(2):134-139. doi: 10.4103/njms.NJMS_16_18.

Evaluation of efficacy of intermaxillary fixation screws versus modified arch bar for intermaxillary fixation.

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1
Department of Oral and Maxillofacial Surgery, K.M. Shah Dental College, Vadodara, Gujarat, India.

Abstract

Aim:

This study aimed to evaluate the efficacy of intermaxillary fixation (IMF) screws and modified arch bar.

Materials and Methods:

This study is a randomized clinical trial in which all participants were divided into two groups of ten in each group and designated as Group A and Group B. In Group A, IMF was achieved by the use of four to six 2×8mm stainless steel IMF screws. In Group B, IMF was achieved by modified screw arch bar.

Results:

In the present study, a total of twenty patients were analyzed. The average working time for Group A and Group B was 16 min and 29 min, respectively. Oral hygiene scores through modified Turesky Gilmore plaque index were calculated at immediate postoperative period and after 15 days, 30 days, and 45 days. Maximum hygiene was maintained in IMF screw group than modified arch bar group, but maximum stability was observed in the modified arch bar group than IMF screw group.

Conclusion:

This study emphasizes the use of IMF screws as a quick and easy method than modified arch bar. Oral hygiene maintenance was comparatively better in patients with IMF screws than those with modified arch bar. Modified arch bar was significantly stable when compared with IMF screws; therefore, for patients who require long-term IMF, modified arch bars can be a viable option, but the perforation in the original arch bar may lead to the weakening of the arch bar, and therefore the prefabricated modified arch bar would be a better option.

KEYWORDS:

Arch bar; intermaxillary fixation screws; maxillomandibular fixation

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