Šimović Marija, Pavušek Ivan, Ivanišević Malčić Ana, Jukić Silvana, Prpić Mehičić Goranka, Matijević Jurica
School of Dental Medicine, University of Zagreb, Zagreb, Croatia.
Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Zagreb, Croatia.
Aust Endod J. 2018 Apr;44(1):54-59. doi: 10.1111/aej.12219. Epub 2017 Aug 18.
The purpose of this study was to determine the range of threshold responses of healthy dental pulps and test the reproducibility of the electric pulp test (EPT). Forty-nine dental students participated in the study. Sound teeth in both arches, except third molars, were included. The teeth were isolated using cotton rolls and dried with compressed air, and the threshold responses were recorded. Participants stopped the stimulus increase by pressing the switch at the first sensation of discomfort. The measurements were repeated after 30 days. The obtained data were analysed using SPSS 16.0. The mean thresholds for the maxillary incisors, canines, premolars and molars were 10.77, 21.07, 21.88 and 34.07 μA, and for mandibular incisors, canines, premolars and molars 9.81, 18.7, 19.24 and 30.1 μA respectively. The differences between the two measurements were statistically significant for teeth 32, 31, 41 and 42. The EPT was shown to be reproducible for all the teeth tested except mandibular incisors.
本研究的目的是确定健康牙髓的阈值反应范围，并测试牙髓电活力测试（EPT）的可重复性。49名牙科学生参与了该研究。纳入了双侧牙弓中除第三磨牙外的健康牙齿。使用棉卷隔离牙齿并用压缩空气吹干，记录阈值反应。参与者在首次感到不适时按下开关停止增加刺激。30天后重复测量。使用SPSS 16.0对获得的数据进行分析。上颌切牙、尖牙、前磨牙和磨牙的平均阈值分别为10.77、21.07、21.88和34.07μA，下颌切牙、尖牙、前磨牙和磨牙的平均阈值分别为9.81、18.7、19.24和30.1μA。对于32、31、41和42号牙，两次测量之间的差异具有统计学意义。结果表明，除下颌切牙外，所有测试牙齿的EPT均可重复。
