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Sinus Lift Surgery (Maxillary Sinus Augmentation)

Pre-implant bone augmentation procedure to add bone to the upper jaw beneath the maxillary sinus.

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 Sinus Lift Surgery (Maxillary Sinus Augmentation)?

Sinus lift surgery (sinus floor elevation) augments bone vertically in the posterior maxilla. The Schneiderian membrane lining the maxillary sinus is carefully elevated and the space beneath is filled with autogenous bone, allograft, xenograft (bovine) or alloplast, creating sufficient bone height for dental implants.

Two main techniques: lateral window approach (Tatum/Boyne, for residual bone <5 mm) creates a bony window in the buccal sinus wall; transcrestal/internal lift (Summers osteotome technique, for residual bone >=5-6 mm) elevates the floor through the implant osteotomy. Healing period is typically 4-9 months before implant loading.

Success rates exceed 95% for implants placed in grafted sinuses. Main complications include Schneiderian membrane perforation (5-30%), sinusitis, graft infection and migration. Pre-operative CBCT is mandatory to assess sinus anatomy, septa, residual bone height and patency.

Symptoms

Insufficient bone height in posterior maxilla (<5 mm)
Long-standing edentulous posterior maxilla
Pneumatized sinus after tooth loss
Failed previous implant placement
Need for stable posterior occlusion
Implant-supported restoration planned
Severe maxillary atrophy
Bone height inadequate for short implants

Risk Factors

Long-standing posterior tooth loss
Periodontal disease with severe bone loss
Smoking (perforation and graft failure)
Uncontrolled diabetes mellitus
Bisphosphonate or antiresorptive therapy
Maxillary sinus pathology (mucocele, polyps)
Acute or chronic sinusitis
Allergic rhinitis with sinus involvement

When to See a Doctor?

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

  • Implant planning with insufficient bone height
  • CBCT showing severe maxillary atrophy
  • History of failed implant in posterior maxilla
  • Pre-implant evaluation for posterior teeth
  • Sinusitis symptoms during planning phase
  • Smoking cessation counseling before surgery

Treatment Methods

01
Pre-operative CBCT and ENT clearance
02
Antibiotic prophylaxis and antiseptic rinse
03
Lateral window or transcrestal approach selection
04
Schneiderian membrane elevation
05
Bone graft material placement (auto/allo/xeno)
06
Membrane coverage and primary closure
07
Healing period 4-9 months
08
Implant placement and restoration

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.