Abstract
Background/purposeThe hypotension in patients during non-surgical root canal treatment (NSRCT) has not yet investigated. This study aimed to assess the mean systolic blood pressure (MSBP), mean diastolic blood pressure (MDBP), and mean arterial blood pressure (MABP) reduction percentages in patients with irreversible pulpitis teeth treated by NSRCT. Materials and methodsWe prospectively recruited 111 patients with a total of 138 irreversible pulpitis teeth. All patients underwent two NSRCT sessions. The first NSRCT session involved mainly the removal of vital pulp tissue with the direct stimulation of the dental branches of the trigeminal nerve, and the second NSRCT session included the root canal debridement and enlargement with minimal disturbance to the dental nerves. The blood pressure of each patient was recorded before and during both NSRCT sessions. ResultsThere were significantly higher reduction percentages of MSBP, MDBP, and MABP in the first NSRCT session than in the second NSRCT session for all treated patients (all the P-values < 0.001). If the patients were divided into 2 or more groups according to the clinical variables including the patients' gender, age, tooth type, and anesthesia type, we also found significantly higher reduction percentages of MSBP, MDBP, and MABP in the first NSRCT session than in the second NSRCT session for all treated patients except for patients below 40 years of age and for patients with lower anterior teeth treated (all the P-values < 0.05). ConclusionThe decrease in blood pressure in patients receiving vital pulpal extirpation is a relatively common phenomenon.
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