Methods dip 2% lidocaine or impede narcosis, use the acuity exonerative plane root slot cut endodontium,after drying overlay thin hydrochloride zinc and than using the zinc phosphate to mount.
方法2%利多卡
或阻滞麻醉,
锐利挖器平根管口切断牙髓,拭干后
氢氧化钙糊剂覆盖根髓断面,硬
后,覆薄层氧化锌
,
磷酸锌
封洞。