Authors (including presenting author) :
Leung MF(1), Chu CKG(1), Kung AYH(2), Cheung CK(1), Lam SY(2), Cheung TCE(1), Choi WS(2)
Affiliation :
(1) KEC 3D Printing Centre, Kowloon East Cluster, (2) Department of Dentistry and Maxillofacial Surgery, United Christian Hospital
Introduction :
This case report explores the application of metal 3D printed patient-specific implants in orthognathic surgery for a 31-year-old female with a dentofacial deformity. The report emphasizes the innovative use of these technologies to enhance surgical precision and outcomes, tailored to the patient's specific needs identified during clinical evaluation and preoperative planning.
Objectives :
The primary goal was to address the patient's dentofacial deformity with high precision using 3D printed patient-specific implants. The secondary objective was to evaluate the effectiveness of these technologies in improving surgical accuracy, reducing operative time, and enhancing postoperative recovery.
Methodology :
The preoperative phase involved designing 3D printed patient-specific titanium alloy implants in KEC 3D Printing Centre and outsourced to an external vendor for printing. In-house simulation tests and third-party mechanical property testing ensured the quality of the titanium alloy PSI plates. All implants underwent a final in-house quality check before the surgery. Intraoperatively, these implants were utilized for accurate fixation. Postoperative care included regular follow-ups to monitor healing, alignment, and functional outcomes. Outcome measures were postoperative CT scan alignment with preoperative plans, a reduction in surgical complications, and surgeon feedback.
Result & Outcome :
The surgery was completed without intraoperative complications. The 3D printed titanium alloy implants ensured stable fixation. The postoperative period was smooth, with no exposure, infection, or palpability of the implants. We achieved the planned occlusion, and the patient's facial profile was greatly improved. The patient was satisfied with the surgical outcome. Follow-ups indicated well-healed surgical wounds and satisfactory occlusion with aligned midline. The patient's subsequent orthodontic treatment further enhanced functional and aesthetic outcomes. Overall, the use of 3D printed patient-specific titanium alloy implants provided a highly personalized and effective treatment approach, showcasing their potential in future orthognathic surgeries.
