活髓切断术是切除有炎症的冠髓,从而保存健康根髓活力,在临床上有较高的应用价值。但在切除冠髓时极易出血,止血较费时间,出血后不予以处理,可导致组织压力升高,使牙髓组织坏死。因此,活髓切断术时,根髓断面迅速止血是非常必要的。作者将CO_2激光用于活髓切断术,达到较好的止 Live pulpotomy is the removal of inflammation of the coronal pulp, thereby preserving the health of the root activity of the root canal, has a higher clinical value. However, when the removal of the crown of the most vulnerable to bleeding, bleeding time-consuming, not treated after bleeding can lead to elevated tissue pressure, pulp tissue necrosis. Therefore, vital pulp transection, root section rapid hemostasis is necessary. The author of CO2 laser for pulpotomy, to achieve a better stop