Study of pulp capping model for dentin regeneration

为了评价高频射频发生器对大鼠上颌第一磨牙的止血作用和牙本质诱导修复效果。用高频无线电波发生器对棉球和次氯酸钠进行温压比较，高频无线电波产生的修复牙本质质量较高。并尝试用K锉观察对修复性牙本质形成暴露的影响。30k锉扩髓后牙本质形成质量较好，50k锉扩髓后牙本质形成质量较差，牙本质缺损呈隧道状。结果表明，止血条件或暴露面积对牙本质再生和牙髓炎症均有影响。

To evaluate the hemostasis and reparative dentin induction by the high frequency radio wave generator, we made exposed pulp artificially in maxillary first molar in rat. Compared the cotton pellet moisture with Sodium hypochloride by gentle pressure with high frequency radio wave generator, high frequency radio wave produced reparative dentin having high quality. And also we tried to examine the effect to the reparative dentin formation exposure by using K files. Pulp expanded by No.30 K file has showed good quality of reparative dentin formation, however by over No.50 K file was formed low quality reparative dentin formation with tunnel like defect. In these results, indicated that the hemostasis condition or exposure area can affect to the dentin regeneration and inflammation of the pulp.