Computer Guided Screw Holes Locating Guide and Custom-made Plates

Preoperative CT.Virtual reduction of broken segments on software.Gain occlusion.Design surgical screw holes locating guide.Design the custom-made plates.Print the screw holes locating guide and the custom-made plate. under general anesthesia the parasymphseal fracture will be reduced using screw holes locating guide and the custom-made plates.

Inclusion Criteria:Patients with parasymphseal mandibular class fracture needs open reduction and internal fixation.Patients with medical history that did not hinder plate placement (uncontrolled diabetes) and adequate proper oral hygiene.Both genders males and females will be included.Exclusion Criteria:• • General contraindications to surgery.Patients with fresh fractures (mobile segments).Patients with unfavourable nor comminuted fractures.Subjected to irradiation in the head and neck area less than 1 year before fixation.Untreated periodontitis.Poor oral hygiene and motivation.Uncontrolled diabetes.Pregnant or nursing.Substance abuse.Psychiatric problems or unrealistic expectations.Severe bruxism or clenching.Immunosuppressed or immunocompromised.Treated or under treatment with intravenous amino-bisphosphonates.Patients participating in other studies, if the present protocol could not be properly followed.