Sinus lift is a bone augmentation procedure performed when there is insufficient bone height in the back of the upper jaw. The aim is to create a secure foundation for implants. It is planned based on the examination tomography. It is performed under local anesthesia. Proper planning and experience determine the outcome.

Sinus Lifting: Basic Concept

In the upper jaw, there are sinus cavities just above the molar region. When teeth are extracted, the bone thins and the sinus sags. With sinus lifting, the sinus membrane is gently lifted. A bone graft is placed underneath. This provides the necessary height for the implant.

• Problem: Low bone height in the upper jaw, such as 3–6 mm

• Solution: Raising the sinus membrane and creating volume with a graft

• Goal: To make the implant stable and long-lasting

• Planning: Determining risks with CBCT (3D imaging)

• Result: The graft matures in 4–9 months, and the implant is secure

How is a Sinus Lift Performed? Step by Step

The method is selected based on bone height and sinus anatomy. The “lateral window” or “crestal (osteotomy)” technique is preferred. The procedure is performed under local anesthesia, with no bleeding and in a controlled manner. If necessary, the implant is placed during the same session.

• Lateral window: A small window is opened in the side wall, and the membrane is lifted

• Crestal approach: Less invasive entry through the gum

• Graft type: Autograft, allograft, synthetic, or mixtures

• Membrane: Barrier to protect and stabilize the graft

• Same-session implant: Possible if bone ≥4–5 mm; otherwise, two-stage

Who is Sinus Lift Suitable For? Who is it Not Suitable For?

It is ideal for patients with insufficient bone height and a sagging sinus floor. Smoking, uncontrolled diabetes, and active sinusitis increase the risks. The systemic condition is stabilized first. An ENT evaluation is obtained if necessary.

• Suitable: Patients planning implants in the upper molar region

• Requirements: Good oral hygiene, willingness to attend regular check-ups

• Caution: Allergic rhinitis, chronic sinusitis, mucosal polyps

• Contraindications: Active infection, uncontrolled systemic disease

• Decision: Joint assessment by dentist + ENT specialist

Risks, Recovery Process, and Precautions

As with any surgery, there are risks; these are low with the correct technique. The most common problem is sinus membrane tear; in most cases, it can be repaired. Recovery is rapid; the first 48 hours are considered critical.

• Early stage: Swelling, slight bruising, soreness; cold compresses are recommended

• Medications: Antibiotics, painkillers, spray; the doctor’s protocol is followed

• Restrictions: Blowing your nose forcefully, holding back sneezes, diving, strenuous sports

• Care: Gentle brushing, antiseptic gargles, soft diet

• Follow-ups: Sutures removed in the 1st week; healing monitored in the 1st–3rd month; graft maturation in the 4th–9th month

Alternatives and Factors Increasing Success

Sinus lifting is not required for every patient. Alternatives are suitable in some cases. Success increases with planning and habit management.

• Alternatives: Short implants, angled implants, transsinusal/zygomatic techniques

• Planning: Analysis of sinus volume, septum, and mucosal thickness with CBCT

• Surgeon experience: Reduces complication rates, shortens duration

• Biomaterial selection: Compatible, volume-preserving graft + appropriate membrane

• Habits: Smoking cessation, bruxism control, regular check-ups

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Sinus Lift – Frequently Asked Questions