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Clinical evaluation of audiometric control root canal treatment: a retrospective case study
Masaki Murakami1, Shintaro Inoue, Noboru Inoue
1Inoue Dental Clinic, Nisseki-Mitsubishi Building B1, 1-3-12 Nishi-simbashi, Minato-ku, Tokyo.
Objective:
The purpose of this study was to retrospectively assess the success of endodontic treatment that had been guided by audiometric (electronic) measurement.
Method And Materials:
The lengths of 66 infected root canals that demonstrated periapical pathosis were accurately measured by the Sono-Explorer before root canal obturation. The results over time intervals of 1 month to 20 years were evaluated on the basis of radiographic examinations.
Results:
The rate of successful treatment was 90.4% for short-filled root canals, 94.5% for flush-filled root canals, and a low 50.0% for long-filled root canals. The rate of successful endodontic therapy was 87.8% for restorations that did not exceed the apical foramen but reached the apical constriction and 95.3% if cases in which the apical radiolucencies were disappearing were included as successes. If cases of unintentional long-filling (overextension) were excluded, the success rate was as high as 98.4%.
Conclusion:
The poor performance of overfilled root canals indicates that practitioners should not overextend these restorations. Use of the Sono-Explorer aided successful treatment of infected root canals.