An experimental study of the removal of cemented dowel-retained cast cores by ultrasonic vibration
作者： Takakazu Yoshida , Shunji Gomyo , Tomomi Itoh , Taiji Shibata , Ichiro Sekine
DOI: 10.1016/S0099-2399(97)80055-6
关键词: Biomedical engineering 、 Surgery 、 Periodontal tissue 、 Dowel 、 Periapical tissue 、 Vibration 、 Materials science 、 Ultrasonic sensor 、 Ultrasonic vibration 、 General Dentistry
摘要: A technique fOR the removal of cemented post-cores by means ultrasonic vibration was studied clinically and histologically. The time measured 80 extracted human teeth, including 40 single-rooted teeth multiple rooted ones then statistically analyzed. periapical tissue reaction to also examined histologically in dogs. best result achieved when lateral simultaneously given 2 tips using generators. There little harmful influence on periodontal tissue, excluding a transient reversible reaction.
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