管口

The diameter of dentinal tubule was not uniform due to peritubular dentine was demineralize.

横剖面见本质小口因脱矿而呈现不规则。

With certain shapes of or canula, elongated caps are made to cover both canula and threaded portion, and seal the canula at its top.

根据口和导不同形状，可以制造细盖以覆盖导和螺纹部分，并在顶部封住导。

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%利多卡因浸润或阻滞麻醉,锐利挖器平根口切,拭干后氢氧化钙糊剂覆盖根面,硬固后,覆薄层氧化锌粘固粉,磷酸锌粘固粉封洞。