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. 2017 Aug;35(4):384–388. [Article in Chinese] doi: 10.7518/hxkq.2017.04.008

图 2. 下颌第一磨牙开髓后应用显微超声技术辅助探查近中根 显微镜 × 16.

图 2

Fig 2 Illustration of micro-ultrasound technique application after access opening in the mesial root of mandibular first molar microscope × 16

A:两主根管预备;B:手用K锉探查疏通MMC;C:手用锉预备后的MMC(箭头所示);D:完全预备后的MMC(箭头所示)。