;
;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.
方法用2%利多卡因浸润
阻滞
,用锐利挖器平根管口切断牙髓,拭干
用氢氧化钙糊剂覆盖根髓断面,
,覆薄层氧化锌粘粉,用磷酸锌粘粉封洞。
