Evaluation of Electric pulp test for Primary Teeth with Traumatic Injuries

Abstract

The purpose of the present study was to determine the diagnostic value of the electric pulp test for primary anterior dentition, and influences of trauma on the pulp vitality in children aged 2-7 years old.77 patients corresponding to 152 traumataized teeth were assessed clinically and radiographically, and 63 non-traumataized teeth were tested as the control. The upper central incisors involved 60.5%of the total number of teeth.
According to diagnos is, subluxation and intrusion were the most frequent (78%), with a redomoninance of lateral luxation, followed by crown fracture and alveolar bone fracture. The ages of the chidlren at the time of accident ranged between 0-6 years old.
The results were as follows. Pulp necrosis and periapica l periodontitis (PN) were diagnosed in 30teeth (19.7%). The frequency of PN came to 60% of the teeth with negative response to electric stimuration during the follow-up period under 5 years of age. Falsenegative reading indicates pulp canal obliteration, yet the patient will be unresponsive to the electric pulp test. All positive response to electric stimuration indicated clinical intact pulp. The presence of intrusion seemed to increase the risk of PN in comparison with subluxation.