In-vitro comparison of mechanical resistance between two straight plates and a Y-plate for fixation of mandibular condyle fractures.

Objective: To compare the mechanical resistance of conventional plates with a modified Y-plate in mandibular condyle fracture.

Materials And Methods: 40 synthetic hemi-mandibular polyurethane replicates were used. Two groups of fixing materials were included: 20 mandibles fixed with 40 straight plates with four roles each (2.

Development plates for stable internal fixation: Study of mechanical resistance in simulated fractures of the mandibular condyle.

Objective: To develop Y-shaped plates with different thicknesses to be used in simulated fractures of the mandibular condyle. Ten plates were developed in Y shape, containing eight holes, and 30 synthetic polyurethane mandible replicas were developed for the study.

Material And Methods: The load test was performed on an Instron Model 4411 universal testing machine, applying load in the mediolateral and anterior-posterior positions on the head of the condyle.