METHODS:13 deform root groove teeth were observed with macroscopy and microscopiy.
方法:13个有畸形根上颌侧切牙,在放大镜、显微镜下观察结构。
METHODS:13 deform root groove teeth were observed with macroscopy and microscopiy.
方法:13个有畸形根上颌侧切牙,在放大镜、显微镜下观察结构。
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