Williams S S, Gutmann J L
Department of Restorative Sciences, Graduate Endodontics, Baylor College of Dentistry, Dallas, Texas 75246-2098, USA.
Int Endod J. 1996 Mar;29(2):84-92. doi: 10.1111/j.1365-2591.1996.tb01166.x.
The healing of the periradicular tissues was evaluated when the polyvinyl resin Diaket with and without tricalcium phosphate was used as surgical root-end filling material. Non-surgical root canal treatment was performed on 56 mandibular premolar roots in mongrel dogs. Following root-end resection, root-end cavity preparations were filled with Diaket, the comparative material, or Diaket in combination with tricalcium phosphate, the experimental material. Postsurgically, healing of the tissues adjacent to the filling materials and in the surrounding surgical site were evaluated at 30 and 60 days. There was virtually no statistically significant difference between the experimental and comparative group at or within the 30- or 60-day period with regard to inflammation, connective tissue formation, root-end encapsulation, cementum formation, or bone apposition. Findings suggest that cementogenesis occurred over both materials. The overall healing of the periradicular tissues was favourable.
当使用含和不含磷酸三钙的聚乙烯树脂Diaket作为外科根尖充填材料时，对根尖周组织的愈合情况进行了评估。对杂种犬的56个下颌前磨牙牙根进行了非手术根管治疗。在根尖切除术后，用对照材料Diaket或实验材料Diaket与磷酸三钙的混合物填充根尖腔。术后，在30天和60天时评估填充材料附近及周围手术部位组织的愈合情况。在30天或60天期间及该时间段内，实验组和对照组在炎症、结缔组织形成、根尖包封、牙骨质形成或骨附着方面几乎没有统计学上的显著差异。研究结果表明，两种材料上均发生了牙骨质生成。根尖周组织的总体愈合情况良好。
