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

Artikel i vetenskaplig tidskrift
Författare Amir Dasmah
Andreas Thor
Annika Ekestubbe
Lars Sennerby
Lars Rasmusson
Publicerad i Journal of cranio-maxillo-facial surgery
Volym 40
Nummer/häfte 8
Sidor 654-659
ISSN 1878-4119
Publiceringsår 2012
Publicerad vid Institutionen för odontologi
Institutionen för odontologi, sektion 1
Sidor 654-659
Språk en
Länkar dx.doi.org/10.1016/j.jcms.2011.10.0...
Ämneskategorier Biomaterial

Sammanfattning

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 2years. RESULT: The volumetric changes after 6months were extensive. Additionally, the changes in particulate bone tended to be larger after 2years 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.

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