Abstract
Background: Orthodontic tooth movement (OTM) is a biological process that can in-fluence the function of the pulp, including its innervation. The excitability of the nerve fibres of the pulp may be altered by forces exerted on the nerve fibres or by reduced blood flow to the pulp. The aim of this clinical study was to evaluate the sensitivity of the dental pulp during levelling and during the phase of space closure, to assess the role of certain controlled risk factors.Methods: Twenty-two adolescent participants requiring orthodontic space closure in transcanine sector were enrolled in a prospective clinical study. Patients were ob-served before OTM, after levelling and 1 month during active space closure. The sen-sitivity threshold of the pulp was measured using the electric pulp test (EPT). Dental models were obtained using an intraoral scanner, allowing measurement of interden-tal distances and calculation of OTM speed. The teeth were categorized according to position and tooth type.Results: The EPT values increased significantly during orthodontic treatment (one- way RM- ANOVA, P= .014). There was a significant difference in EPT values between the tooth categories. Teeth with a single root adjacent to the residual space had the highest EPT thresholds (two-way RM-ANOVA, P< .001
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Claims 0
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