| The Effect of Ultrasonic Method for Preparing Root Canals:A Scanning Electron Microscopic Evaluation |
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| 作者姓名： | 吴友农 黄力子 史俊南 |
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| 作者单位： | Department of Odontology Oindu Stomatological Hospital，Fourth Military Medical University，Xi'an 710032，Department of Odontology，Oindu Stomatological Hospital，Fourth Military Medical University，Xi'an 710032，Department of Odontology，Oindu Stomatological Hospital，Fourth Military Medical University，Xi'an 710032 |
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| 摘 要： | Sixteen fresh extracted human teeth paired according to their anatomic locations,were divided into two groups at random.The root canais of the teeth in Group 1 were preparedwith an ultrasonic unit and those of Group 2 with hand instruments.Then,the specimens wereobserved under a scanning electron microscope and their pnotographs were taken.Blindevaluation of cleanness was performed for each canal.Statistical dnalysis of the data indicatesthat the canal walls were cleaner in Group 1 than in Group 2 and that the ultrasonic preparationtook less time.
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The Effect of Ultrasonic Method for Preparing Root Canals:A Scanning Electron Microscopic Evaluation |
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| Wu Younong,Huang Lizi,Shi Junan.The Effect of Ultrasonic Method for Preparing Root Canals:A Scanning Electron Microscopic Evaluation[J].Journal of Medical Colleges of PLA(China),1989(4). |
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| Authors: | Wu Younong Huang Lizi Shi Junan |
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| Institution: | Wu Younong,Huang Lizi,Shi Junan Department of Odontology,Oindu Stomatological Hospital,Fourth Military Medical University,Xi'an 710032 |
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| Abstract: | Sixteen fresh extracted human teeth paired according to their anatomic locations, were divided into two groups at random.The root canais of the teeth in Group 1 were prepared with an ultrasonic unit and those of Group 2 with hand instruments.Then,the specimens were observed under a scanning electron microscope and their pnotographs were taken.Blind evaluation of cleanness was performed for each canal.Statistical dnalysis of the data indicates that the canal walls were cleaner in Group 1 than in Group 2 and that the ultrasonic preparation took less time. |
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| Keywords: | root canal therapy ultrasonics |
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