Particulate vs. block bone grafts: Three-dimensional changes in graft volume after reconstruction of the atrophic maxilla, a 2-year radiographic follow-up

被引:83
作者
Dasmah, Amir [1 ,4 ]
Thor, Andreas [2 ]
Ekestubbe, Annika [3 ]
Sennerby, Lars [1 ]
Rasmusson, Lars [1 ]
机构
[1] Univ Gothenburg, Sahlgrenska Acad, Dept Oral & Maxillofacial Surg, Gothenburg, Sweden
[2] Uppsala Univ, Inst Surg Sci, Dept Plast & Oral & Maxillofacial Surg, Uppsala, Sweden
[3] Univ Gothenburg, Inst Odontol, Sahlgrenska Acad, Dept Oral & Maxillofacial Radiol, Gothenburg, Sweden
[4] Soder Hosp, Maxillofacial Unit, Stockholm, Sweden
关键词
Bone graft; Oral implants; Platelet-rich plasma; Volumetric changes; SEVERELY RESORBED MAXILLA; PLATELET-RICH PLASMA; AUTOGENOUS BONE; COMPUTED-TOMOGRAPHY; EDENTULOUS MAXILLA; SINUS AUGMENTATION; IMPLANTS; PLACEMENT; FLOOR;
D O I
10.1016/j.jcms.2011.10.032
中图分类号
R78 [口腔科学];
学科分类号
100302 [口腔临床医学];
摘要
Background: Extensive 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. Purpose: The 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 methods: Eleven patients treated with iliac bone grafts and oral implants in the maxilla were followed with CT examinations directly post grafting and after 2 years. Result: The 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. Conclusion: The 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. (C) 2011 European Association for Cranio-Maxillo-Facial Surgery.
引用
收藏
页码:654 / 659
页数:6
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