Wisdom Teeth Removal Infection Risk: Exposed Bone & What to Do

Yes, exposed bone after wisdom tooth extraction can become infected. This is most commonly due to alveolar osteitis (dry socket) or secondary infection of the socket.

How It Happens

• After extraction, a blood clot fills the socket. If it fails to form or is dislodged (dry socket), the underlying bone is exposed to oral bacteria.
• Even with a clot, bacteria can invade if oral hygiene is poor, immunity is compromised, or the wound is traumatized.
• Mandibular third molars have higher risk due to thinner soft tissue coverage and proximity to the lingual nerve.

Signs of Infection

• Increasing pain after day 3 (not improving)
• Swelling worsening or spreading (face, neck, submandibular)
• Persistent bleeding or purulent discharge
• Fever >100.4°F (38°C), chills
• Trismus (difficulty opening mouth)
• Foul taste/odor unrelieved by rinsing
• Lymphadenopathy

Immediate Action

Contact your oral surgeon or dentist immediately. Do not wait. Early intervention prevents deep space infections (Ludwig's angina, mediastinitis).

Treatment

• Irrigation & debridement of socket
• Medicated dressing (eugenol-based) for dry socket
• Antibiotics (amoxicillin/clavulanate, clindamycin, metronidazole) for spreading infection
• Incision & drainage if abscess formed
• IV antibiotics/hospitalization for severe/septic cases

Prevention

• Follow all post-op instructions meticulously
• No smoking/vaping × 72h minimum (ideally 1 week)
• No straws, spitting, vigorous rinsing × 24h
• Gentle saltwater rinses after 24h
• Soft diet; avoid chewing on surgical side
• Take prescribed antibiotics exactly as directed
• Keep follow-up appointment