The goal of this clinical trial is to learn if mandibular reconstruction with immediate dental implants is as accurate in fresh cases and delayed cases

The accuracy of the fibular segments and dental implants will be compared in both groups

Participants will:

undergo a preoperative CT scan with VSP for mandibular reconstruction Undergo the surgical procedure Undergo an immediate postoperative CT scan and have it superimposed on the virtual plan to detect inaccuracies

The goal of this clinical trial is to learn if mandibular reconstruction with immediate dental implants is as accurate in fresh cases and delayed cases

The accuracy of the fibular segments and dental implants will be compared in both groups

Participants will:

undergo a preoperative CT scan with VSP for mandibular reconstruction Undergo the surgical procedure Undergo an immediate postoperative CT scan and have it superimposed on the virtual plan to detect inaccuracies

Inclusion Criteria for participants:

• Adult patients with conditions requiring mandibular reconstruction using fibula free flaps.
• Adult patients diagnosed with neoplastic conditions requiring resection and agreed to immediate reconstruction
• Adult patients with segmental mandibular defects resulting from previous pathology, trauma, infectious conditions
• Patients willing for the surgical procedure and follow-up, with an informed consent.

Exclusion Criteria for participants:

• Patients with significant medical diseases and comorbidities preventing them undergoing lengthy procedures under general anesthesia
• Patients with Peripheral Vascular Disease
• Patient with known allergy to contrast media in whom a CTA of the lower limbs will not be possible
• Patients with Peronea Magna where the peroneal artery is the main blood supply of the lower limbs and its harvesting might result in compromise of the leg vascularity
• Patients with no desire for surgical correction
• Patients with any diseases that compromise bone or soft tissue healing. Patients with local pathosis that interfere with the bone healing.