Virtual Surgical Planning and Customized Subperiosteal Titanium Maxillary Implant (CSTMI) for Three Dimensional Reconstruction and Dental Implants of Maxillary Defects after Oncological Resection: Case Series

• Published in: Journal of clinical medicine Vol. 11; no. 15; p. 4594
• Main Authors: Cebrián Carretero, Jose Luís, Del Castillo Pardo de Vera, José Luis, Montesdeoca García, Néstor, Garrido Martínez, Pablo, Pampín Martínez, Marta María, Aragón Niño, Iñigo, Navarro Cuéllar, Ignacio, Navarro Cuéllar, Carlos
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 06.08.2022; MDPI
• Subjects: 3D reconstruction; Clinical medicine; Defects; Dental implants; Dental occlusion; Design; Manufacturing; oral rehabilitation; Patients; Planning; Prostheses; Rehabilitation; Skin & tissue grafts; subperiosteal maxillary implants; Surgery; Titanium; Madrid Spain; Spain
• ISSN: 2077-0383; 2077-0383
• DOI: 10.3390/jcm11154594

Maxillectomies cause malocclusion, masticatory disorders, swallowing disorders and poor nasolabial projection, with consequent esthetic and functional sequelae. Reconstruction can be achieved with conventional approaches, such as closure of the maxillary defect by microvascular free flap surgery or prosthetic obturation. Four patients with segmental maxillary defects that had been reconstructed with customized subperiosteal titanium maxillary implants (CSTMI) through virtual surgical planning (VSP), STL models and CAD/CAM titanium mesh were included. The smallest maxillary defect was 4.1 cm and the largest defect was 9.6 cm, with an average of 7.1 cm. The reconstructed maxillary vertical dimension ranged from 9.3 mm to 17.4 mm, with a mean of 13.17 mm. The transverse dimension of the maxilla at the crestal level was attempted to be reconstructed based on the pre-excision CT scan, and these measurements ranged from 6.5 mm in the premaxilla area to 14.6 mm at the posterior level. All patients were rehabilitated with a fixed prosthesis on subperiosteal implants with good esthetic and functional results. In conclusion, we believe that customized subperiosteal titanium maxillary implants (CSTMI) are a safe alternative for maxillary defects reconstruction, allowing for simultaneous dental rehabilitation while restoring midface projection. Nonetheless, prospective and randomized trials are required with long-term follow-up, to assess its long-term performance and safety.