Single side safety control, arm locks with tooth type ratchet, multi-safety device, more reliable.

单边控制保险机构，齿轮锁臂装置，多重保险设计，更加安全。

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CONCLUSION: the tooth type or tooth position, root curvature and calcification have significantly influenced the outcome of root canal treatment.

结论：根管治疗的失败与牙位(牙类型和牙位置)、根管弯曲度和钙化度密切相关。

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The invention discloses a telescopic tooth type remnant film collecting method of a non-circular gear planetary system and the mechanism thereof.

本发明公开了一种非圆齿轮行星系的伸缩齿式残膜捡拾方法及机构。

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Lasers vary in type, but one major brand, Waterlase, works by heating water molecules in the tooth, which then expand and dislodge decayed tooth structure, according to manufacturer Biolase Inc.

WSJ: To Cut Tooth Decay: A Laser vs. a Drill