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Open AccessTechnical Note

Xeno-Hybrid Composite Scaffold Manufactured with CAD/CAM Technology for Horizontal Bone-Augmentation in Edentulous Atrophic Maxilla: A Short Communication

1
Department of Biotechnologies and Medical Surgical Sciences, Sapienza, University of Rome, 00161 Rome, Italy
2
Department of Oral and Maxillo-Facial Sciences, Sapienza, University of Rome, 00161 Rome, Italy
3
Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(8), 2659; https://doi.org/10.3390/app10082659
Received: 9 March 2020 / Revised: 9 April 2020 / Accepted: 10 April 2020 / Published: 12 April 2020
(This article belongs to the Special Issue Bio-Inspired Biodegradable Scaffold Constructs for Bone Tissue Repair)
The present short communication described a new procedure for the reconstruction of the horizontal severely resorbed edentulous maxilla with custom-made deproteinized bovine bone block, fabricated using three-dimensional imaging of the patient and computer-aided design/computer-aided manufacturing (CAD/CAM) technology. The protocol consisted of three phases. In the diagnosis and treatment planning, cone-beam computed tomographic scans of the patient were saved in DICOM (digital imaging and communication in medicine) format, anatomic and prosthetic data were imported into a dedicated diagnostic and medical imaging software, the prosthetic-driven position of the implants, and the graft blocks perfectly adapted to the residual bone structure were virtually planned. In the manufacturing of customized graft blocks, the CAD-CAM technology and the bovine-derived xenohybrid composite bone (SmartBone® on Demand - IBI SA - Industrie Biomediche Insubri SA Switzerland) were used to fabricate the grafts in the exact shape of the 3D planning virtual model. In the surgical and prosthetic procedure, the maxillary ridge augmentation with custom-made blocks and implant-supported full-arch screw-retained rehabilitation were performed. The described protocol offered some advantages when compared to conventional augmentation techniques. The use of deproteinized bovine bone did not require additional surgery for bone harvesting, avoided the risk of donor site morbidity, and provided unlimited biomaterial availability. The customization of the graft blocks reduced the surgical invasiveness, shorting operating times because the manual shaping of the blocks and its adaptation at recipient sites are not necessary and less dependent on the clinician’s skill and experience. View Full-Text
Keywords: bone tissue regeneration; xenografts; bone substitutes; computer-aided design/computer-aided manufacturing; deproteinized bovine bone bone tissue regeneration; xenografts; bone substitutes; computer-aided design/computer-aided manufacturing; deproteinized bovine bone
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Cristalli, M.P.; La Monaca, G.; Pranno, N.; Annibali, S.; Iezzi, G.; Vozza, I. Xeno-Hybrid Composite Scaffold Manufactured with CAD/CAM Technology for Horizontal Bone-Augmentation in Edentulous Atrophic Maxilla: A Short Communication. Appl. Sci. 2020, 10, 2659.

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