Bulletin of Stomatology and Maxillofacial Surgery
ISSN 1829-006X
2025; 211–218
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COMPARATIVE STUDY ON PULPAL BLOOD FLOW CHANGES IN VITAL TEETH AND ENDODONTICALLY TREATED TEETH DURING ORTHODONTIC INTRUSION

Archana Loganathan*

Received: 2026-04-08 · Published: 2025-11-04

© 2025 The Author(s) and the original publisher.

CC BY-NC 4.0 This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
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Original title
COMPARATIVE STUDY ON PULPAL BLOOD FLOW CHANGES IN VITAL TEETH AND ENDODONTICALLY TREATED TEETH DURING ORTHODONTIC INTRUSION
Author
Archana Loganathan
Source journal
Bulletin of Stomatology and Maxillofacial Surgery
Published
2025-11-04
Licence
Creative Commons Attribution-NonCommercial 4.0 International
Original
https://doi.org/10.58240/1829006X-2025.21.10-211

Abstract

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.
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