Combination of biomechanical evaluation and accurate placement of dental implants: a new concept of virtual surgery in maxillary and mandibular functional reconstruction |
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| Institution: | 1. Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China;2. Department of Operating Room, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China;3. Trustworthy (Beijing) Technology co., Ltd, Beijing, 100102, China;4. Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation of Sun Yat-Sen Memorial Hospital, Guangzhou, 510120, China;1. University of São Paulo, School of Dentistry, São Paulo, SP;2. Santa Teresa Hospital, Petrópolis, RJ;3. Federal Hospital of Bonsucesso, Rio de Janeiro, RJ;4. Institute of Tropical Medicine of São Paulo, São Paulo, Brazil;1. Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland and Helsinki University Hospital, Helsinki, Finland;2. Department of Oral and Maxillofacial Diseases, Helsinki University Hospital, Helsinki, Finland;1. Department of Oral and Maxillofacial Surgery, Royal Perth Hospital;2. Royal Perth Hospital, Department of Oral and Maxillofacial Surgery, Oral Health and Equity, Department of Human Sciences, University of Western Australia;3. Department of Oral Medicine, University of Western Australia |
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| Abstract: | Biomechanics are crucial for bony regeneration and survival of implants in functional maxillary and mandibular reconstructions. However, we know of no study that has included an analysis of biomechanics to guide the optimal position of a fibular graft in virtual surgery. This study was designed to evaluate the combination of biomechanics and accurate placement of implants for virtual surgery in reconstruction of the jaw using fibular grafts. Thirty-one patients had maxillary or mandibular reconstruction with vascularised fibular grafts and the immediate placement of dental implants. Virtual studies were made preoperatively to evaluate the biomechanics and to assess the position of the fibular grafts with minimal distribution of stress. All operations proceeded accurately and with no complications with a mean (range) of 14 (6-20) months’ follow-up. According to the individual biomechanical evaluations, the optimal position for the fibular graft is probably the middle of the mandibular body or below the bottom of the maxillary sinus. The combination of biomechanical evaluation and accurate placement of dental implants is a new concept that could achieve good biomechanical positioning of fibular grafts in the jaw and a desirable level of accuracy for functional reconstruction. |
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| Keywords: | biomechanics dental implant virtual surgery reconstruction surgical guide |
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