The 3rd Generation of Dental Acrylic Intraoral Splint for Immobilization of Mandibular Fracture

Abstract

This study was divided into 3 phases. The 1st phase was the experiment in seven cadaver skulls to compare force from 2 techniques of weight load; interdental wiring and interdental wiring together with dental acrylic, with 1, 2 and 3 kilogram bar for 10 minutes. The evaluation was done by measuring the gap of the fracture line in a lateral radiograph. The force was calculated from the gap according to momentum and force balance law. Force after the interdental wiring technique and force after intraoral acrylic splint together with interdental wiring were compared by paired t-test. The results found significant difference (P<0.05) (-22.76 and -3.58). The 2nd phase’s objective was to test tissue inflammation when use dental acrylic in the oral cavity. Upper canine teeth of 3 experiment dogs were banded with dental acrylic for 14 days. Then the gum was checked for inflammation. There was very mild to no inflammation. The last phase was done in mandibular body fractures of 2 dogs using the intraoral splint together with dental acrylic and which was followed up until mandibular bone was healed. Both of them had progressive bone healing at 2 months and clinical bone union at 4 months after surgery.