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Maxillary Sinus Perforation During Dental Implant Surgery

Breach of the maxillary sinus floor while placing a posterior maxillary implant; managed with sinus lift, membrane repair, or alternative implant strategy.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Ağız ve Diş Sağlığı department. Book Appointment →

What is Maxillary Sinus Perforation During Dental Implant Surgery?

Maxillary sinus perforation occurs when the floor of the maxillary sinus or the Schneiderian membrane is breached during posterior maxillary dental implant placement, often due to insufficient bone height (less than 5-7 mm), aggressive osteotomy, or unrecognized sinus pneumatization.

Risk increases with edentulous posterior maxilla, prior tooth extraction with bone resorption, chronic sinus disease, and atypical sinus anatomy. Pre-operative cone-beam CT (CBCT) is essential to plan implant length and need for sinus lift.

Small perforations (under 3 mm) often heal with conservative measures; larger perforations require sinus lift with membrane repair (collagen membrane, sutures), antibiotics, sinus precautions, and possibly staged implant placement after healing.

Symptoms

Bleeding from nose after implant surgery (epistaxis)
Air or fluid passage between mouth and nose
Implant mobility or loss
Sinusitis symptoms (facial pain, nasal congestion, postnasal drip)
Halitosis or unpleasant taste
Visible perforation on CBCT or panoramic imaging
Foreign body sensation (displaced implant in sinus)

Risk Factors

Insufficient bone height in posterior maxilla (<5-7 mm)
Long-term edentulism with bone resorption
Maxillary sinus pneumatization
Chronic sinus disease or polyps
Surgical inexperience or aggressive osteotomy
Inadequate pre-operative imaging
Smoking and poor wound healing

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Bleeding from nose after recent implant surgery
  • Air or fluid passage between mouth and nose
  • Implant mobility or migration
  • Severe facial pain, swelling, fever
  • Sinusitis symptoms after implant placement
  • Suspected displaced implant into sinus
  • Persistent halitosis or unusual taste

Treatment Methods

01
Pre-operative CBCT and treatment planning
02
Sinus lift (lateral or crestal approach) for limited bone height
03
Membrane repair with collagen membrane and sutures
04
Broad-spectrum antibiotics and decongestants
05
Sinus precautions (no nose blowing, no straws, gentle sneezing)
06
Staged implant placement after sinus healing
07
Endoscopic retrieval of displaced implant if needed

Which Department to Visit?

You can visit our Ağız ve Diş Sağlığı department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Ağız ve Diş Sağlığı Department

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.