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Updated: Jun 25, 2025

In Vivo Assessment of Alveolar Macrophage Efferocytosis Following Ozone Exposure
Published on: October 22, 2019
Reduction of MRONJ risk after exodontia by virtue of ozone infiltration: A randomized clinical trial
Olga Di Fede1, Gaetano La Mantia1,2,3, Carmine Del Gaizo4
1Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy.
Introduction:
Exodontia is commonly considered as a risk factor for the development of medication-related osteonecrosis of the jaw (MRONJ) in individuals exposed to bone modifying agents. This study was aimed at assessing the efficiency and safety of a gaseous oxygen-ozone mixture as an adjuvant to a standard exodontia to reduce the risk of MRONJ development.
Methods:
A randomized, open-label, phase II, single-center clinical trial involving 117 patients at risk of MRONJ was conducted. The study protocol tested injections of an oxygen-ozone mixture in the post-extraction site. Participants were randomly assigned to two groups: oxygen-ozone therapy, and standard tooth extraction protocol. Post-extraction wound healing was assessed using the Inflammatory Proliferative Remodeling (IPR) Wound Healing Scale.
Results:
The oxygen-ozone therapy group exhibited a significant improvement in wound healing post-extraction during the inflammatory and proliferative phases, as indicated by the IPR scale scores at 3-5 days (p = 0.006) and 14 days (p < 0.001) respectively.
Conclusion:
Oxygen-ozone therapy shows promise in improving post-extraction healing in patients at risk of MRONJ. Future studies with larger sample sizes and multicenter collaborations are recommended to confirm the validity of these findings and explore the long-term efficacy of ozone therapy.

