What Researchers Did
Researchers reviewed the evidence on how long dental implants survive in patients who received radiation therapy for head and neck cancer, including when implants should be placed and what role HBOT plays.
What They Found
Radiation therapy damages jaw bone vascularity and healing capacity, which reduces dental implant survival rates. Key questions in the literature remain unresolved: the optimal timing for implant placement relative to radiation, the dose threshold above which implant loss increases significantly, and whether HBOT before and after implant surgery improves outcomes. HBOT is discussed as a potential tool to improve bone healing in irradiated tissue before and after implant procedures.
What This Means for Canadian Patients
Many Canadian head and neck cancer survivors struggle with eating and speaking because of poor dental function following radiation. Dental implants can restore these functions, but their failure rate in irradiated bone is significant. This review is relevant to Canadians deciding when to pursue dental rehabilitation after radiation, and whether HBOT should be part of that process.
Canadian Relevance
Delayed radiation injury and osteoradionecrosis are OHIP-covered indications for HBOT in Ontario; the use of HBOT to support implant survival in irradiated jaws falls within this coverage framework.
Study Limitations
This is a narrative review without a systematic search, meta-analysis, or formal quality assessment, so its conclusions about HBOT's role in implant survival are general rather than evidence-graded.