Authors : Archana Loganathan, Ritu Sharma, Karnati Reddy, Amrit Podder, Satwik Chatterjee, N. Chitra
DOI : 10.58240/1829006x-2025.21.10-211
Volume : 10
Issue : 21
Year : 2025
Page No : 211
Background: Orthodontic intrusion is a common technique for repositioning teeth, but it can affect pulpal blood flow (PBF). This study compares the changes in PBF during orthodontic intrusion in vital and endodontically treated teeth. Objectives: This study aimed to investigate and compare changes in PBF in vital and endodontically treated teeth over 6 weeks of orthodontic intrusion. Materials and Methods: A total of 120 participants were included in this prospective, observational study. Participants were divided into two groups: 60 with vital teeth and 60 with endodontically treated teeth. PBF was measured at baseline and at weekly intervals during the 6 weeks of orthodontic intrusion using Laser Doppler Flowmetry (LDF). Statistical analysis was conducted using paired t-tests and independent t-tests to assess intra- and inter-group differences in PBF. Results: Significant reductions in PBF were observed in both groups over the 6 weeks. However, endodontically treated teeth showed a more pronounced decrease in PBF compared to vital teeth. At the end of the study, the PBF of vital teeth remained higher than that of endodontically treated teeth, with a statistically significant difference (p < 0.05). Conclusion: Orthodontic intrusion reduces PBF in both vital and endodontically treated teeth, with the latter being more susceptible to compromised blood flow. These findings suggest that orthodontists should assess tooth vitality. before applying orthodontic forces, particularly in patients with endodontically treated teeth, to prevent potential complications.