Particulate vs. block bone grafts: Three-dimensional changes in graft volume after reconstruction of the atrophic maxilla,a 2-year radiographic follow-up |
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| Authors: | Amir Dasmah Andreas Thor Annika Ekestubbe Lars Sennerby Lars Rasmusson |
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| Institution: | 1. Department of Oral and Maxillofacial Surgery, The Sahlgrenska Academy, University of Gothenburg, Sweden;2. The Maxillofacial Unit, Söder Hospital, Stockholm, Sweden;3. Department of Plastic and Oral & Maxillofacial surgery, Institute of Surgical Sciences, Uppsala University, Sweden;4. Department of Oral & Maxillofacial Radiology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Sweden;1. Professor, Department of Oral and Maxillofacial Surgery, Rambam Medical Care Center, Haifa, Israel; and Ruth & Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel;2. Resident, Department of Oral and Maxillofacial Surgery, Rambam Medical Care Center, Haifa, Israel;3. Professor, Ruth & Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel; and Department of Orthodontics and Cleft Palate, School of Dental Surgery, Rambam Medical Care Center, Haifa, Israel;4. Attending Physician, Department of Oral and Maxillofacial Surgery, Rambam Medical Care Center, Haifa, Israel; and Ruth & Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel;1. Department of Dental Materials and Prosthodontics, Araçatuba Dental School, UNESP?Univ Estadual Paulista, Araçatuba, Brazil;2. Department of Surgery and Integrated Clinics, Araçatuba Dental School, UNESP?Univ Estadual Paulista, Araçatuba, Brazil;3. Department of Pediatric and Community Dentistry, Araçatuba Dental School, UNESP?Univ Estadual Paulista, Araçatuba, Brazil;4. CNPq Fellowship;1. Department of Oral and Maxillofacial Surgery, Refaja Hospital, Stadskanaal, The Netherlands;2. Department of Oral and Maxillofacial Surgery, Scheper Hospital, Emmen, The Netherlands;3. Department of Oral and Maxillofacial Surgery, University Medical Centre, Groningen, The Netherlands;1. Department of Cranio-Maxillofacial Surgery, Oral Surgery and Implantology, Infant Jesus Teaching Hospital-Medical University of Warsaw, Warsaw, Poland;2. Department of Dental Surgery, Medical University of Warsaw, Warsaw, Poland;3. Department of Transplantology and Central Tissue Bank, Medical University of Warsaw, and National Centre for Tissue and Cell Banking, Warsaw, Poland;4. Department of General and Transplantation Surgery, Transplantation Institute, Warsaw Medical University, Warsaw, Poland;1. Centre for Implant and Reconstructive Dentistry, London, UK;2. Private Practice, Waterloo, Ontario, Canada;3. Dept. of Maxillofacial Surgery, Countess of Chester Hospital NHS Trust (Retired), Chester, Cheshire, UK;4. Spire Hartswood Hospital, Warley, Brentwood, Essex, UK;5. Consultant Anaesthesist, Princess Grace Hospital, HCA Healthcare UK, London, UK;6. Novadent Dental Studios, Wembley, Middlesex, UK;1. Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran;2. Ferdowsi University of Mashhad, Faculty of Sciences, Institute of Applied Zoology, Research Department of Zoological Innovations (RDZI), Mashhad, Iran |
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| Abstract: | BackgroundExtensive alveolar bone resorption in the maxilla limits the possibility of successful placement and osseointegration of endosseous implants for future prosthetic rehabilitation. Autogenous bone from the iliac crest may be used as lateral onlays in the atrophic maxilla, both as block and particulate bone. To our knowledge, there is no three-dimensional 2-year follow-up study measuring the volumetric reduction of the augmented areas comparing particulate and block bone grafts.PurposeThe aim of this study was to conduct a radiographic 2-year follow-up study, using computed tomographic (CT) images in order to evaluate and compare the extent of bone graft resorption in the frontal maxillae augmented by particulate (test) and block bone (control).Material and methodsEleven patients treated with iliac bone grafts and oral implants in the maxilla were followed with CT examinations directly post grafting and after 2 years.ResultThe volumetric changes after 6 months were extensive. Additionally, the changes in particulate bone tended to be larger after 2 years compared to block bone, using this protocol. However, the difference was not statistically significant.ConclusionThe present follow-up study showed that there is radiographically complete integration and embedding of implants installed in grafted bone despite extensive initial graft resorption. There was no significant difference in the amount of volumetric reduction between particulate bone and block bone grafts. |
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