Hydrogen Gas Shows Promise for Treating Gum Disease and Oral Health
- Authors
- Ann Badia, Jihyuk Yang, Sara Aliyeva, Yonghyun Choi, Jonghoon Choi, Tagbo H R Niepa
- Journal
- Advanced Drug Delivery Reviews
- Year
- 2026
- DOI
- 10.1016/j.addr.2026.115774
- Study Type
- clinical
- Peer Reviewed
- Yes
- Country
- United States
- Health Condition
- Periodontal Disease
- Body System
- Oral Cavity
TL;DR
Scientists are testing special gases like hydrogen and oxygen as new ways to treat tooth and gum diseases, and these gases work by killing bacteria, reducing swelling, and helping tissue heal better than traditional treatments. The tricky part is figuring out how to safely deliver these gases to the right spot in your mouth, but researchers are developing new technologies like special gels and tiny particles that could make it work.
Key Finding
Hydrogen and other therapeutic gases show promise for treating oral diseases through antimicrobial, anti-inflammatory, and tissue-healing properties, but clinical translation requires advances in safe delivery systems, clinical testing, and regulatory approval.
Summary
This review examines how therapeutic gases—including hydrogen, ozone, nitric oxide, and others—could treat oral diseases like gum disease and tooth decay. These gases work by killing bacteria, reducing inflammation, and helping tissues heal. While conventional treatments like antibiotics and surgery have limitations, gases delivered through new methods (like special nanoparticles or hydrogels) could offer a less invasive alternative, though significant challenges remain in safety, dosing, and cost before these treatments can be widely used in dental practice.
Practical Takeaway
While this review identifies hydrogen as a potentially useful therapeutic gas for oral health, it is a summary of early-stage research rather than evidence from human clinical trials. Most of the work described remains in development stages, and significant barriers—including safety concerns, delivery challenges, and lack of established clinical protocols—must be overcome before hydrogen-based oral treatments become available. Anyone interested in experimental oral therapies should consult their dentist about what evidence currently supports any specific product.
Abstract
Oral delivery of gas-based therapies provides a targeted, minimally invasive approach to treating oral diseases. Conventional strategies, such as mechanical debridement, antibiotics, and surgical intervention, are limited by the inaccessibility of oral biofilms, the development of antimicrobial resistance, and challenges in promoting tissue regeneration. Therapeutic gases, including oxygen (O2), ozone (O3), nitrous oxide (N2O), nitric oxide (NO), carbon monoxide (CO), carbon dioxide (CO2), hydrogen (H2), hydrogen sulfide (H2S), and argon-based plasma, have emerged as promising options to address these challenges. Each gas exhibits distinct biological effects relevant to dental care, including antimicrobial properties, promotion of tissue healing and regeneration via angiogenesis and collagen synthesis, and anti-inflammatory benefits through modulation of oxidative stress and immune responses. Despite these advantages, significant barriers hinder clinical translation, such as dose control, toxicity at high concentrations, delivery limitations, and the high cost of specialized equipment. To address these challenges, research is advancing innovative delivery systems, such as gas-generating nanoplatforms, hydrogels, capsules, and nano-bubble water, that enable responsive release of the therapeutic gases within the oral environment. Future directions include developing safe, patient-friendly delivery technologies, expanding clinical trials, and establishing a transparent regulatory framework to fully realize the potential of gas-based therapies as effective adjuncts or alternatives to conventional dental treatments.