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Published in: Clinical Oral Investigations 1/2021

01-01-2021 | Original Article

Bone microRNA-21 as surgical stress parameter is associated with third molar postoperative discomfort

Authors: Milan Vucetic, Jelena Roganovic, Martin Freilich, David Shafer, Marija Milic, Ljiljana DJukic, Nina Petrovic, Evgenija Markovic, Aleksa Markovic, Bozidar Brkovic

Published in: Clinical Oral Investigations | Issue 1/2021

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Abstract

Objective

To evaluate an association between bone levels of inflammation/oxidative stress mediators and postoperative discomfort after third molar conventional or piezosurgery.

Material and methods

Twenty-six subjects with bilaterally impacted mandibular third molars, who underwent either piezo or conventional surgery, were included in a split-mouth design study. MicroRNA-21 (miR-21) expression, interleukin-1 beta (IL-1β), and vascular endothelial growth factor (VEGF) proteins, as well as superoxide dismutase (SOD) activity in alveolar bone, were evaluated. Pain intensity, the first pain appearance, analgesic first use and total dose taken, trismus, and swelling were clinically recorded.

Results

MiR-21 expression was higher while VEGF protein was lower in piezosurgery vs. conventional groups. The differences in IL-1β protein and SOD activity were not significant between groups. The pain intensity on the first day was significantly decreased in piezosurgery group. The first pain appearance and the first analgesic taken were reported sooner in conventional vs. piezosurgical group. Significantly pronounced trismus on the third day following conventional surgery was found. In conventional group, significantly increased trismus was observed on the third compared to the first postoperative day. MiR-21 showed significant correlation with the first pain appearance.

Conclusion

Delayed onset of less pronounced postoperative pain after piezosurgical vs. conventional extraction of impacted lower third molar was significantly associated with expression of bone miR-21.

Clinical relevance

Alveolar bone miR-21 may reflect surgical stress and is associated with third molar postoperative pain onset.
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Metadata
Title
Bone microRNA-21 as surgical stress parameter is associated with third molar postoperative discomfort
Authors
Milan Vucetic
Jelena Roganovic
Martin Freilich
David Shafer
Marija Milic
Ljiljana DJukic
Nina Petrovic
Evgenija Markovic
Aleksa Markovic
Bozidar Brkovic
Publication date
01-01-2021
Publisher
Springer Berlin Heidelberg
Published in
Clinical Oral Investigations / Issue 1/2021
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-020-03366-6

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