Bargale Seema Dinesh, Davangere Padmanabh Shital Kiran
Department of Pedodontics and Preventive Dentistry, Sumandeep Vidyapeeth, Kanjibhai Manjibhai Shah Dental College and Hospital, Vadodara, Gujarat, India.
J Indian Soc Pedod Prev Dent. 2015 Apr-Jun;33(2):138-42. doi: 10.4103/0970-4388.155128.
Electric pulp testers (EPTs) are widely used as diagnostic aid in dentistry for dental pulp. This delivers enough current to overcome enamel and dentin resistance and to stimulate the myelinated sensory fibers at the junction of pulp and dentin. Such testing requires the electrode to be in contact with the surface of the tooth, with optimal positions identified for anterior teeth, premolars, and molars.
To determine the best site position of EPT on premolars. The objective of electric pulp testing was to determine the sensibility of each premolar at the lowest sensory response threshold.
Clinical study Materials and Methods: The premolars of 20 patients between 13 and 15 years accompanied with parents, free of restorations, and caries were selected. Five sites on the crown were tested with EPT for minimum of four times.
One-way analysis of variance test and the Tukey's honestly significant difference test.
The lowest threshold response was noted at the incisal edge of the tooth; the middle third had a higher threshold among all the different placement of electrode. Statistically significant difference was observed for occlusal surface in terms of region of placement of electrode.
This experiment found the best electrode site for pulp testing in premolars. The appropriate EPT site was on the occlusal surface of maxillary and mandibular premolars.
牙髓电活力测试仪（EPT）在牙科领域被广泛用作牙髓诊断辅助工具。它能提供足够的电流以克服釉质和牙本质的电阻，并刺激牙髓与牙本质交界处的有髓感觉纤维。这种测试要求电极与牙齿表面接触，已确定了前牙、前磨牙和磨牙的最佳位置。
确定EPT在前磨牙上的最佳位点。牙髓电测试的目的是在最低感觉反应阈值下确定每个前磨牙的敏感性。
临床研究 材料与方法：选取20名13至15岁有家长陪同、无修复体且无龋齿的患者的前磨牙。用EPT对牙冠上的五个位点进行至少四次测试。
单因素方差分析和Tukey真实显著差异检验。
在牙齿切缘处记录到最低阈值反应；在电极所有不同放置位置中，中间三分之一处阈值较高。在电极放置区域方面，观察到咬合面存在统计学显著差异。
本实验找到了前磨牙牙髓测试的最佳电极位点。合适的EPT位点在上颌和下颌前磨牙的咬合面上。
