中国组织工程研究Issue(21)：3893-3900,8.DOI:10.3969/j.issn.2095-4344.2013.21.013
钴铬合金及银钯合金烤瓷冠对牙周组织的影响*★
Influences of cobalt-chromium alloy versus silver-palladium alloy porcelain crown on periodontal tissues
摘要
Abstract
BACKGROUND: Metal porcelain crown is the most commonly used method of repair of dental defects, and periodontal problems are the most common causes of repair failure. OBJECTIVE: To evaluate the influence of cobalt-chromium al oy and silver-pal adium al oy as the materials of inner crown on periodontal tissue. METHODS: Total y 189 clinical diseased teeth from 75 patients were chosen in this study. 106 teeth were repaired with cobalt-chromium al oy porcelain crown, and 83 were repaired with silver-pal adium al oy porcelain crown. The changes in periodontal sulcus bleeding index and amount of gingival crevicular fluid were observed. Interleukin-1 beta, tumor necrosis factor alpha and the positive rates of Porphyromonas gingivalis, Actinobacil us actinomycetemcomitans, Tannerel a forsythia in the gingival crevicular fluid were detected. RESULTS AND CONCLUSION: In the cobalt-chromium alloy porcelain crown group, there were significant differences in periodontal sulcus bleeding index, the amount of gingival crevicular fluid, interleukin-1 beta, and tumor necrosis factor alpha as well as the positive rates of Porphyromonas gingivalis and Tannerella forsythia in the gingival crevicular fluid prior to and 12 months post-restoration (P < 0.05), while there was no significant difference in the positive rate of Actinobacillus actinomycetemcomitans (P > 0.05). In the silver-palladium alloy porcelain crown group, there were significant differences in periodontal sulcus bleeding index and the amount of gingival crevicular fluid (P < 0.05), but no differences in interleukin-1 beta, tumor necrosis factor alpha and the positive rates of Porphyromonas gingivalis, Actinobacillus actinomycetemcomitans and Tannerella forsythia in the gingival crevicular fluid prior to and 12 months post-restoration (P > 0.05). The cobalt-chromium alloy porcelain crown may have an adverse effect on periodontal tissue to a certain degree, while the silver-palladium alloy is an ideal substrate material of porcelain fused to metal crown.关键词
生物材料/组织工程口腔材料/金属烤瓷冠/钴铬合金/银钯合金/牙周指数/牙周致病菌/省级基金Key words
biomaterials/tissue-engineered oral materials/porcelain-fused-to-metal crown/cobalt-chromium al oy/silver-pal adium al oy/periodontal index/periodontopathic bacteria/provincial grants-supported paper分类
医药卫生引用本文复制引用
李洪洋,钟丽芳,刘兵,蔡鸿丹..钴铬合金及银钯合金烤瓷冠对牙周组织的影响*★[J].中国组织工程研究,2013,(21):3893-3900,8.基金项目
辽宁省自然科学基金项目(2009225009-15)。 （2009225009-15）
