BackgroundThree-dimensional (3D) printing is relatively a new technology with clinical applications, which enable us to create rapid accurate prototype of the selected anatomic region, making it possible to plan complex surgery and pre-bend hardware for individual surgical cases. This study aimed to express our experience with the use of medical rapid prototype (MRP) of the maxillofacial region created by desktop 3D printer and its application in maxillofacial reconstructive surgeries.Material and MethodsThree patients with benign mandible tumors were included in this study after obtaining informed consent. All patient’s maxillofacial CT scan data was processed by segmentation and isolation software and mandible MRP was printed using our desktop 3D printer. These models were used for preoperative surgical planning and prebending of the reconstruction plate.ConclusionsMRP created by desktop 3D printer is a cost-efficient, quick and easily produced appliance for the planning of reconstructive surgery. It can contribute in patient orientation and helping them in a better understanding of their condition and proposed surgical treatment. It helps surgeons for pre-operative planning in the resection or reconstruction cases and represent an excellent tool in academic setting for residents training. The pre-bended reconstruction plate based on MRP, resulted in decreased surgery time, cost and anesthesia risks on the patients. Key words:3D printing, medical modeling, rapid prototype, mandibular reconstruction, ameloblastoma.

Radicular cyst is the most common inflammatory jaw cystic lesion that occurs in necrotic teeth. They account for more than 50 % of all odontogenic cysts. Radicular cysts cause slowly progressive painless swelling and there are no symptoms until they become large. Enucleating the cyst with endodontic therapy of the affected tooth is recommended as the primary treatment. Here we describe a patient with a large recurrent radicular cyst with maxillary sinus involvement who underwent a midfacial degloving approach for complete enucleation. In conclusion, radicular cyst should be considered in the differential diagnosis of large maxillary sinus lesions and never be discarded until histopathology is available.

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