Large Maxillary Sinus Lift

A large maxillary sinus lift, also known as a sinus augmentation or sinus graft, is a surgical procedure performed in the field of oral and maxillofacial surgery or implant dentistry. This procedure is typically done when there is insufficient bone height in the upper jaw (maxilla) to support dental implants in the posterior region of the mouth. The maxillary sinuses are air-filled spaces located behind the cheeks and above the upper teeth, and a sinus lift involves lifting or raising the sinus membrane to create more space for bone grafting and subsequent implant placement. Here is an overview of the large maxillary sinus lift procedure:

Indications:

1. Inadequate Bone Volume: When the bone height in the posterior upper jaw is insufficient to support dental implants. This can result from natural bone resorption, tooth loss, or anatomical limitations due to the proximity of the maxillary sinus.

Procedure:

1. Evaluation: The patient’s oral health and medical history are thoroughly evaluated, and diagnostic imaging, such as panoramic X-rays or cone-beam computed tomography (CBCT), is used to assess the bone volume and sinus position.

2. Anesthesia: Local anesthesia is administered to numb the surgical area, ensuring the patient’s comfort during the procedure.

3. Surgical Access: An incision is made in the gum tissue, creating access to the underlying bone.

4. Sinus Membrane Elevation: The sinus membrane, which lines the maxillary sinus, is carefully lifted or pushed upward, creating space beneath it. This space will be filled with bone graft material.

5. Bone Grafting: A bone graft material, typically either the patient’s own bone (autograft), donor bone (allograft), or synthetic bone substitute, is placed in the void created by elevating the sinus membrane. The bone graft material acts as a scaffold for new bone formation.

6. Closure: The incision is sutured, and the site is allowed to heal. Healing can take several months, during which the bone graft material integrates and new bone forms.

7. Implant Placement: After the graft has healed and the new bone has matured, dental implants can be placed in the newly augmented bone. This typically occurs several months after the sinus lift procedure.

Recovery and Healing:

Recovery from a large maxillary sinus lift can involve some post-operative discomfort, swelling, and mild bleeding. Patients will be provided with post-operative care instructions, including medication for pain management and instructions on oral hygiene.

Follow-up:

Regular follow-up appointments with the oral surgeon or implantologist are essential to monitor healing and assess when it is appropriate to proceed with dental implant placement.

A large maxillary sinus lift is a well-established and effective surgical procedure that allows patients with insufficient bone volume in the upper jaw to receive dental implants in the posterior region. It requires the expertise of an experienced oral surgeon or implant specialist to achieve successful outcomes. Patients considering this procedure should consult with a qualified dental professional to discuss their specific needs and treatment options.