Fogorvosi szemle, 2004 (97. évfolyam, 1-6. szám)
2004-08-01 / 4. szám
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Szabó Gy, SubaZs, Hrabák K, Barabás J, Németh Zs: Autogenous bone versus ß-tricalcium phosphate graft alone for bilateral sinus elevations /2- and 3-dimensional computed tomographic, histologic, and histomorphometric evaluations/: preliminary results. Int J Oral Maxillofac Implants 2001; 16: 681-692. 21. Tadjoedin ES, de Lange GL, Holzmann PJ, Kuiper L, Burger EH: Histological observations on biopsies harvested following sinus floor elevation using a bioactive glass material of narrow size range. Clin Oral Impl Res2000; 11: 334-344. 22-Terheyden H, Jepsen S, Möller B, Tucker MM, Rueger DC: Sinus floor augmentation with simultaneous placement of dental implants using a combination of deproteinized bone xenografts and recombinant human osteogenic protein-1. Clin Oral Impl Res 1999; 10: 510-521. 23. ZECHNER W, Tangl S, Tepper G, Fürst G, Bernhart Th, Haas R, Mailath G, Watzek G: Influence of platelet-rich plasma on osseous healing of dental implants: a histologic and histomorphometric study in minipigs. Int J Oral Maxillofac Implants 2003; 18:15-22. 24. Zerbo IR, Bronckers ALJJ, de Lange GL, van Beek GJ, Burger EH: Histology of human alveolar bone regeneration with a porous tricalcium phosphate. A report of two cases. Clin Oral Impl Res 2001; 12: 379-384. 25. Yildirim M, Spiekermann H, Biesterfeld S, Edelhoff D: Maxillary sinus augmentation using xenogenic bone substitute material Bio- Oss® in combination with venous blood. A histologic and histomorphometric study in humans. Clin Oral Impl Res 2000; 11:217-229. Dr. Suba Zs, Takács D, Dr. Gyulai-GaAl Sz, Dr. Kovács K, Dr. Velich N, Szigeti K, Dr. Szabó Gy: Alveolar bone regeneration stimulated by a combination of platelet-rich plasma and Cerasorb graft in Beagle dogs. Histological and histomorphometric studies Healing of extraction wounds was examined in an animal experiment model on Beagle dogs. After bilateral extraction of the premolars of 12 dogs the alveoli were filled up with a combination of ß-tricalcium phosphate (Cerasorb) graft and platelet rich plasma (PRP) on the experimental side, and with Cerasorb alone on the control side. Biopsy specimens were taken from the regenerating bone at 6, 12 and 24 weeks after surgery for histological study. Results of the histologic and histomorphometric examinations revealed that after 6 weeks the newly formed bone was significantly denser on the experimental side. After 12 weeks this difference became moderate, and after 24 weeks the bone forming activity was nearly equal on the two sides. These results suggest that local administration of Cerasorb and PRP results in more intense bone regeneration, especially in the early phase. Keywords: ß-tricalcium phosphate, platelet-rich plasma, bone regeneration, histology, histomorphometry, animal experiment