小猎犬
骨形成
骨形态发生蛋白
骨膜
骨形态发生蛋白2
体内
牙科
血清瘤
人骨
医学
化学
外科
内科学
体外
生物
生物化学
生物技术
基因
并发症
作者
István Urbán,Sándor Farkasdi,Dieter D. Bosshardt,Maurício G. Araújo,Andrea Ravidà,Kathrin Becker,Robert Kerberger,Hom‐Lay Wang,Ulf M. E. Wikesjö,Gábor Varga,Muhammad H. A. Saleh
摘要
ABSTRACT Objective The objective of this study is to compare the effect of the location of recombinant human bone morphogenetic protein 2 (rhBMP‐2) from the native bone and the periosteum for vertical alveolar bone augmentation. Materials and Methods Mandibular, chronic, standardized, bilateral, and vertical defects in 12 beagle dogs were evaluated using four modalities: a xenograft alone (XENO; n = 6); rhBMP‐2 alone (BMP; n = 6); a technique with rhBMP‐2 close to the host bone covered by xenograft (SAN; n = 6); and a technique with rhBMP‐2 close to the flap on top of the xenograft (LAS; n = 6). After 8 weeks, a series of in vivo inspections, fluorescence microscopy, histologic and histomorphometric evaluations, and micro‐CT analyses. Results After 8 weeks of healing, new bone formation correlated with proximity of rhBMP to the perforated membrane with BMP and LAS ( p = 0.024). The highest total bone volume was found in the LAS group (45.1% ± 13.3%), followed by the SAN group (35.2% ± 6.7%), BMP group (33.1% ± 11.8%), followed by the XENO group (23.1% ± 6.5%). The SAN group demonstrated frequent seroma formation. Blood vessel formation was more pronounced in the LAS + rhBMP group, with a significant increase of 27.1% compared to the XENO group ( p = 0.02). Micro‐CT revealed a strong trend for higher bone volume in the BMP group (34.7%) compared to the XENO group (13.6%) ( p = 0.06). Only rhBMP‐2 groups demonstrated bone formation above the perforated membrane. Conclusion The location of rhBMP‐2 in relation to the biomaterial and periosteum influenced the effectiveness of vertical bone regeneration.
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