Reconstruction of complex maxillofacial defects where the use of bone morphogenetic protein-2 composite grafts may be preferred can be done using perforated titanium shells or forms that confine the graft material and simultaneously establish the desired shape of the augmentation without resorting to autogenous block bone grafting. Reported here is a method for creation of rapid-prototype titanium bone forms, which was developed from a software program, to reproduce bone morphology precisely. The technique and treatment planning objectives are elucidated, especially with regard to complex vertical augmentations.
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http://dx.doi.org/10.11607/jomi.te62 | DOI Listing |
Craniomaxillofac Trauma Reconstr
February 2024
Department of Oral and Maxillofacial Surgery, Auckland & Counties Manukau District Health Board, Auckland, New Zealand.
Front Bioeng Biotechnol
June 2022
Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
In revision total hip arthroplasty (THA), large acetabular bone defects pose challenges for surgeons. Recently, wide application of trabecular tantalum, which has outstanding biocompatibility and mechanical properties, and the development of three-dimensional (3D) printing have led to the introduction of new schemes for acetabular reconstruction. However, few studies have focused on the treatment of bone defects with customized 3D-printed titanium augments combined with tantalum trabecular cup.
View Article and Find Full Text PDFJ Appl Oral Sci
September 2021
Chonnam National University, Department of Oral and Maxillofacial Surgery, Gwangju, Republic of Korea.
Objective: This study sought to compare the biocompatibility of a three-dimensional (3D)-printed titanium implant with a conventional machined titanium product, as well as the effect of such implant applied with recombinant human Bone Morphogenetic Protein Type 2 (rhBMP-2) for guided bone regeneration.
Methodology: Disk-shaped titanium specimens fabricated either by the conventional machining technique or by the 3D-printing technique were compared by MC3T3-E1 cells cytotoxicity assay. New bone formation was evaluated using a rapid prototype titanium cap applied to the calvaria of 10 rabbits, which were divided into two groups: one including an atelopeptide collagen plug on one side of the cap (group I) and the other including a plug with rhBMP-2 on the other side (group II).
Oral Maxillofac Surg Clin North Am
August 2019
Department of Oral Maxillofacial Surgery, University of Utah, School of Dentistry, 530 Wakara Way, Salt Lake City, Utah 84108, USA.
Traditional reconstruction of major alveolar ridge deficiency has required autogenous cortical cancellous particulate bone grafts, often augmented with particulate allogeneic components. Now there is a new concept to consider, that of orthoalveolar form. This paradigm shift involves components of the tissue engineering triad of inductive growth factors combined with a matrix and stem cells, together with osteotomies or devices designed for space maintenance.
View Article and Find Full Text PDFVet Comp Orthop Traumatol
February 2018
Department of Clinical Sciences of Companion Animals, Utrecht University, Utrecht, The Netherlands.
Objectives: To develop the canine vertebral screw and rod fixation system (CVSRF) and to compare the biomechanical properties between CVSRF and the screw and polymethylmethacrylate (Screw-PMMA) technique for internal fixation of the vertebral column in dogs.
Methods: The CVSRF consisted of vertebral screws with monoaxial side-loaded head, rods and specific inner screws connecting rod to the screw head. The CVSRF prototype was made from titanium alloy and manufactured by the rapid prototype machine.
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