Treatment for Oral Complications After Cancer

What These Conditions Are

Osteoradionecrosis (ORN) is bone death in the jaw caused by reduced blood flow following head and neck radiation. It can be triggered by an extraction, an infection, or sometimes occurs spontaneously, often years after radiation completed. Exposed, non-healing bone is the hallmark.

Medication-related osteonecrosis of the jaw (MRONJ): sometimes called BRONJ when caused by bisphosphonates specifically, is bone death related to certain medications. The most common culprits are bisphosphonates (Zometa, Reclast, Aredia, Bonefos), denosumab (Xgeva, Prolia), and anti-angiogenic drugs. Risk depends on the medication, dose, duration, and whether oral surgery has occurred.

Both conditions can present as:

• Exposed bone in the mouth that does not heal
• Persistent pain in the jaw
• Loose teeth or non-healing extraction sites
• Drainage, infection, or fistulae
• Visible bone fragments separating (sequestration)

Why Specialized Care Matters

These conditions are not common in the general population, and most general dentists encounter very few cases. Treatment decisions matter:

• The wrong intervention (aggressive surgical debridement of stable ORN, for example) can worsen the condition
• The right intervention (conservative management, targeted antibiotics, careful sequestrectomy when needed) can stabilize or resolve it
• Some cases need referral to specialized hospital-based care; others can be managed in the office

A clinician who manages these conditions regularly is much more likely to make good decisions about which path applies to which patient.

What We Provide

For patients with diagnosed or suspected ORN or MRONJ, we offer:

Diagnosis and staging. Clinical exam, panoramic and CBCT imaging, and review of medical and treatment history. We follow established staging criteria for both conditions.

Conservative management. Antimicrobial mouth rinses (typically chlorhexidine), targeted antibiotics when infection is present, and careful monitoring. Many cases stabilize with conservative care.

Sequestrectomy when needed. Removal of separating bone fragments, sometimes a key step in allowing healing.

Surgical management of advanced cases. When conservative care is not enough, careful surgical intervention may be needed. We coordinate with oral and maxillofacial surgeons or hospital-based teams for complex cases.

Hyperbaric oxygen therapy (HBO) coordination. For selected ORN cases, HBO may be used adjunctively before surgical procedures to support bone healing. We coordinate referrals when appropriate.

Long-term surveillance. Both conditions can recur or progress. We follow patients closely with periodic exams and imaging.

Prevention for at-risk patients. Patients about to begin bisphosphonates or denosumab benefit from a dental clearance before therapy starts. Patients with prior radiation benefit from preventive care that minimizes future need for extractions. We provide both.

Working With Your Medical Team

These conditions sit at the boundary of medicine and dentistry, and management often involves:

• The medical oncologist managing your bisphosphonate or denosumab therapy
• The radiation oncologist who treated your original cancer
• The surgical oncologist or oral surgeon, if hospital-based intervention is needed
• The infectious disease team in cases of secondary infection

We routinely coordinate with these clinicians. For patients with active or progressing disease, the team-based approach often makes the difference between stable and worsening outcomes.