Summary
In connection with osteosynthesis carried out on the tibias of rats we compared acrylic and bis-GMA plastics (CMW and Silar) and acrylic emulsion and acrylic dispersion used as intermediary material. A total of 80 rats of both sexes were used. The rats were divided into four groups, in which different intermediary material combinations were tested. The observation times were l, 3, 6, 12, and 24 weeks. Macroscopical, radiological, histological, oxytetracycline fluorescence, and scanning electronmicroscopical studies were done. Histologically, the Silar proved to be the more reliable fixation material and acrylic dispersion the better intermediary material. Furthermore, the radiological results were better (P < 0.05) when acrylic dispersion was used as the intermediary material and Silar as the plastic.
Zusammenfassung
Bei an der Tibia von Ratten durchgeführten Osteosynthesen kombinierten wir Acryl- and bis-GMA-Plastikmaterial (CMW and Silar) mit Acryl-Emulsion sowie Acryl-Dispersion als Zwischenmedium. Es wurden 80 Ratten beiderlei Geschlechts verwendet. Bei 4 Gruppen wurden die verschiedenen Kombinationen getestet bei Beobachtungszeiten von 1, 3, 6, 12 and 24 Wochen. Es wurden makroskopische, radiologische, histologische, Oxytetrazyklinfluoreszenz- und elektronenmikroskopische Scanning-Untersuchungen -durchgeführt. Histologisch erwies sich Silar als das zuverlässigste Material in Verbindung mit Acryl-Dispersion als Zwischenmedium. Weiterhin waren die radiologischen Ergebnisse besser (P < 0.05) bei der Verwendung von Acryl-Dispersion als Zwischenmedium und Silar als Plastikmaterial.
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Lapinsuo, M., Kilpikari, J., Pätiälä, H. et al. Experimental osteotomy fixed with composite resins. Arch. Orth. Traum. Surg. 105, 193–196 (1986). https://doi.org/10.1007/BF00435479
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DOI: https://doi.org/10.1007/BF00435479