Comparison of pulp sensibility test responses in normotensive and hypertensive individuals: A clinical study

BACKGROUND: Pulp sensibility testing is an essential part of the diagnostic process in the assessment of pulpal health. Several lines of evidence suggest an interaction between control of blood pressure and pain regulatory mechanisms. AIM: The aim of the study is to compare pulp sensibility test responses in normotensive and hypertensive individuals. MATERIALS AND METHODS: Ninety-eight patients participated in the study, with 49 individuals each in the hypertensive and normotensive groups. A minimum of 4 and maximum of 8 sound teeth were included in the study each from the anterior, premolar, and molar, i.e., 4 teeth from either arch. A total of 832 teeth were tested. The value and time when the responses evoked for electric pulp test (EPT) and cold test were recorded respectively. STATISTICAL ANALYSIS: For intergroup and intragroup analyses, independent t-test and paired t-test were utilized. RESULTS: A statistically significant difference was noted in values for EPT as well as cold test responses when both the groups were compared (P < 0.01). Higher values were obtained with the hypertensive group. CONCLUSION: Patients with established hypertension showed an increased threshold to electric pulp testing and cold stimulus as compared to normal healthy individuals.