Journal of Endodontics
Volume 30, Issue 12 , Pages 860-862, December 2004

Optimal Positioning for a Dental Operating Microscope During Nonsurgical Endodontics

From the Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan.

The most comfortable positioning for a dental operating microscope (DOM) during nonsurgical endodontics for operators was investigated. Operators were categorized into 3 groups according to height. We recorded the time taken to obtain magnified images, and the angles of binoculars, microscope body, and the mirror to floor surfaces. For the group of shorter operators, observations were also made with an angled optics or a short objective lens (200 mm). It took longer to observe the mandibular molars than maxillary in every group. Although the differences in angles among each group were not remarkable for maxillary observation, we confirmed significant differences for the mandibular. Shorter operators had to adopt a strained position for mandibular observation in a standard setup but were more comfortable using angled optics or a short objective lens. By understanding the proper position, operators could learn to perform microendodontics more efficiently.

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 This study was in part supported by a Grant-in aid for Scientific Research (14370619 and 14571812) from the Japan Society for the Promotion of Science and was a part of the 21st Century COE entitled “Origination of Frontier BioDentistry” at Osaka University Graduate School of Dentistry supported by the Ministry of Education, Culture, Sports, Science, and Technology.The authors thank Drs. H. Iseki and M. Matsumori for their assistance in the experiments. The optional devices of the microscope were provided by Carl Zeiss Japan.Address requests for reprints to Yoshifumi Kinomoto, DDS, PhD, Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8, Yamadaoka, Suita, Osaka 565–0871, Japan. e-mail: kinomoto@dent.osaka-u.ac.jp.

PII: S0099-2399(05)60062-3

doi:10.1097/01.DON.0000134206.19737.58

Journal of Endodontics
Volume 30, Issue 12 , Pages 860-862, December 2004

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