目的:探讨耐氟变形链球菌对树脂牙本质粘接强度的影响。方法:诱导培养耐氟变形链球菌UA159-FR及其亲代菌株UA159,选用复合树脂Z350和自酸蚀粘接剂Single bond Universal,制备牙本质-树脂复合体试件。将试件分为4组,分别浸入UA159-FR菌液...目的:探讨耐氟变形链球菌对树脂牙本质粘接强度的影响。方法:诱导培养耐氟变形链球菌UA159-FR及其亲代菌株UA159,选用复合树脂Z350和自酸蚀粘接剂Single bond Universal,制备牙本质-树脂复合体试件。将试件分为4组,分别浸入UA159-FR菌液、UA159菌液、BHI培养基、PBS中孵育14 d,每48 h换液1次,之后进行推出试验,检测试件粘接强度的变化。扫描电镜下观察4组粘接断面的情况。采用SPSS18.0软件包对数据进行统计学分析。结果:在UA159-FR和UA159侵袭下,牙本质-复合树脂粘接强度显著降低,组间无显著差异。粘接界面多为混合破坏,扫描电镜下可见大量的树脂突及部分粘接面破坏。结论:耐氟变形链球菌可破坏复合树脂粘接界面,引起粘接强度下降,破坏程度在短期内与亲代菌株无显著差异。展开更多
Primary hyperoxaluria （PH） is a rare autosoma recessive disorder of glyoxylate metabolism in which specific hepatic enzyme deficiencies result in overproduction of oxalate. Because oxalate is excreted exclusively by...Primary hyperoxaluria （PH） is a rare autosoma recessive disorder of glyoxylate metabolism in which specific hepatic enzyme deficiencies result in overproduction of oxalate. Because oxalate is excreted exclusively by the kidney, hyperoxaluria leads to calcium oxalate nephrolithiasis, nephrocalcinosis, and renal failure. PH are considered rare with a prevalence of 0.1-0.2 per 106 population.2 PH was misdiagnosed in some cases initially and unfortunately a case may not be detected until the post-transplant period by allograft biopsy.展开更多
文摘目的:探讨耐氟变形链球菌对树脂牙本质粘接强度的影响。方法:诱导培养耐氟变形链球菌UA159-FR及其亲代菌株UA159,选用复合树脂Z350和自酸蚀粘接剂Single bond Universal,制备牙本质-树脂复合体试件。将试件分为4组,分别浸入UA159-FR菌液、UA159菌液、BHI培养基、PBS中孵育14 d,每48 h换液1次,之后进行推出试验,检测试件粘接强度的变化。扫描电镜下观察4组粘接断面的情况。采用SPSS18.0软件包对数据进行统计学分析。结果:在UA159-FR和UA159侵袭下,牙本质-复合树脂粘接强度显著降低,组间无显著差异。粘接界面多为混合破坏,扫描电镜下可见大量的树脂突及部分粘接面破坏。结论:耐氟变形链球菌可破坏复合树脂粘接界面,引起粘接强度下降,破坏程度在短期内与亲代菌株无显著差异。
文摘Primary hyperoxaluria （PH） is a rare autosoma recessive disorder of glyoxylate metabolism in which specific hepatic enzyme deficiencies result in overproduction of oxalate. Because oxalate is excreted exclusively by the kidney, hyperoxaluria leads to calcium oxalate nephrolithiasis, nephrocalcinosis, and renal failure. PH are considered rare with a prevalence of 0.1-0.2 per 106 population.2 PH was misdiagnosed in some cases initially and unfortunately a case may not be detected until the post-transplant period by allograft biopsy.
