[Objective]To complete comparison between anterior cervical surgery by microendoscopic and open operation,explore feasibility and efficacy of anterior cervical decompression,interbody fusion and fixation by microendoscopic surgery,and give preliminary clinical evaluation of mieroendoscopic surgery.

Applied anatomy of mb-2 root canal orifice of maxillary first permanent molar with operating microscope;

The operating microscope in the treatment of endodontics;

The development of a coupling device of laser knifeand operating microscope;

This paper introduces the characteristics and the methods of making a sterilized fixer of the objective lens of surgical microscope.

Design of the digital imaging system of the surgical operation microscope on PACS;

Objective To explore the application of the scleral cryotherapy under operation microscope during retinal detachment surgery.

According to the characteristic of operation microscope, a decorative coating system was confirmed.

Objective To evaluate the role of dental operating microscope in clinical treatment of lower incisors with multiple root canals.