Sinus Lift and Bone Augmentation
Our bone augmentation and sinus lift procedures provide the ideal foundation for secure and long-lasting dental implants. Rely on our expertise – for a strong foundation and a radiant smile!
Sinus Lift and Bone Augmentation
The Key to Stable Dental Restorations
A sinus lift and bone augmentation are essential procedures in dental surgery, especially in implantology. Both techniques are designed to strengthen or rebuild the jawbone so that it can serve as a stable foundation for dental implants. These procedures are particularly important in the upper jaw, where bone density is often lower, to ensure secure and lasting implant placement. This article provides a comprehensive overview of the importance, methods, procedure, and aftercare of bone augmentation and sinus lift treatments.
The Importance of Bone Augmentation and Sinus Lift
A strong jawbone is the foundation for successful dental implants. Bone augmentation replaces lost bone tissue and strengthens the jawbone. A sinus lift – also known as sinus floor elevation – raises the floor of the maxillary sinus to create additional space for bone material. Both procedures are crucial for the long-term stability and functionality of dental implants.
Reasons for These Procedures
Bone augmentation or a sinus lift is often required due to bone loss, which can occur for various reasons. Without sufficient bone mass, dental implants cannot be securely anchored. These treatments restore bone density and create a solid foundation for stable and long-lasting implants. The most common causes include tooth loss (which leads to jawbone resorption), periodontitis (a frequent cause of bone loss), and natural anatomical conditions where the bone is too thin or weak. Bone augmentation may also be required to ensure a safe and permanent anchorage for dental implants.
What is Bone Augmentation?
Bone augmentation, medically known as augmentation, is a surgical procedure aimed at restoring lost bone tissue in the jaw. This procedure becomes necessary when the jawbone is no longer stable enough to securely support a dental implant. Bone loss can occur as a result of tooth loss, periodontitis, or other medical conditions. The goal of bone augmentation is to increase the volume of the jawbone to provide a strong and stable foundation for dental restorations.
Applications and Indications
Bone augmentation is required when the existing jawbone is insufficient to safely and permanently anchor a dental implant. This is often the case after tooth loss, injury, or as a result of periodontitis, which accelerates bone resorption. In particular, patients planning for implant treatment but lacking sufficient bone volume will benefit from this procedure. Bone augmentation is performed in both the upper and lower jaw and is also important for aesthetic reconstructions. The primary goal is to create a stable bone structure that ensures the longevity and functionality of dental implants.
Methods of Bone Augmentation
There are several bone augmentation techniques, each chosen based on the patient’s individual needs and medical conditions. Below, we introduce the autologous and allogeneic bone grafting methods, as well as the use of xenogenic and alloplastic materials, and discuss their respective advantages and disadvantages.
01.
Autologous Bone Grafting
In autologous bone grafting, the patient’s own bone material is taken from another area of the body—such as the chin, hip, or lower jaw—and transplanted into the jaw where it is needed. This method is highly effective since the patient’s own bone is biologically compatible, minimizing the risk of rejection. However, it does require an additional surgical procedure to harvest the bone.
02.
Allogeneic Bone Grafting
Allogeneic bone grafting uses bone material from a human donor. This is a good alternative when the patient does not have enough of their own bone available. The donated bone is carefully processed to ensure high safety, compatibility, and biocompatibility. While this method avoids the need for a second surgical site, it carries a slightly higher risk of rejection compared to autologous grafts.
03.
Xenogenic and Alloplastic Materials
Xenogenic bone grafts use bone material from animals, usually bovine sources, while alloplastic materials are synthetic alternatives. Both types are highly biocompatible and are often used in combination with other grafting techniques to achieve optimal results. These materials are particularly useful when autologous or allogeneic bone is unavailable or insufficient.
04.
Advantages and Disadvantages of Each Method
Each method offers distinct advantages and disadvantages. Autologous grafts are considered the most reliable option, with high success rates and minimal risk of rejection, since the patient’s own bone is used. However, this approach requires an additional surgical site for bone harvesting. Allogeneic and xenogenic grafts, on the other hand, are more readily available and eliminate the need for a second procedure, though they carry a slightly higher risk of immune reaction. Alloplastic materials provide a flexible and well-tolerated alternative that is easy to obtain, but they do not integrate into the body’s natural bone structure as effectively as biological grafts.
Book your consultation online now →What is a Sinus Lift?
A sinus lift, also known as sinus floor elevation or sinus augmentation, is a surgical procedure performed to build up bone in the upper jaw. It is required when the bone near the sinus cavity is too thin to securely hold a dental implant. During the sinus lift procedure, the membrane lining the sinus floor is carefully lifted through a small opening, and the resulting space is filled with bone graft material. This graft integrates with the surrounding bone tissue over time, increasing bone volume and thickening the sinus floor. The degree of bone augmentation depends on the planned implant height and ultimately creates a strong and durable foundation for dental implants. In many cases, it is not necessary to wait for the grafted bone to fully fuse with the surrounding tissue — the implant placement can often be performed in the same session as the sinus lift.
Applications and Indications
A sinus lift is indicated when there is insufficient bone height in the posterior upper jaw to support an implant. This may be required due to bone loss following tooth extraction or due to natural anatomical variations. Typical indications include inadequate bone height in the maxilla, planned implant placements in the molar or premolar regions, and the proximity of the sinus cavity to the ridge crest. The procedure is essential for patients who require implants in the posterior maxillary area.
Sinus Lift Methods
A sinus lift is a surgical procedure designed to increase the amount of bone in the upper jaw near the sinus cavity, creating sufficient bone volume for dental implant placement. There are two primary techniques — the internal and external sinus lift — each with its own advantages, applications, and risks.
01.
Internal Sinus Lift
The internal sinus lift is used when there is still enough residual bone but a slight elevation of the sinus floor is needed. Its main advantage lies in the minimally invasive approach: the sinus membrane is lifted through the same channel that will later hold the implant. In many cases, the implant can be placed during the same procedure, shortening the overall treatment time. The risks associated with this method are low, but it is only suitable when bone loss is moderate.
02.
External Sinus Lift
The external sinus lift is performed when a greater amount of bone needs to be added, often because very little residual bone remains. In this procedure, a small window is created on the side of the upper jaw to allow direct placement of bone graft material beneath the sinus cavity. Although this method is more extensive and generally requires a longer healing period before implants can be placed, it provides a stable and durable foundation — even in complex cases. The main risk lies in potential injury to the sinus membrane, but such complications are rare and can usually be treated effectively.
03.
Comparison of Both Methods
Both the internal and external sinus lift are well-established techniques, each suited to specific clinical situations and degrees of bone deficiency. A thorough diagnostic assessment and consultation are essential before determining the most appropriate method. The internal sinus lift is less invasive and ideal for minor bone augmentations, while the external approach allows for greater bone buildup and provides a stronger base for implants in cases of significant bone loss. The final decision depends on the patient’s individual anatomy and is discussed in detail with the treating dentist.
Plan your personal consultation online →Treatment Process
Careful preparation and a well-structured treatment plan are essential for the success of a sinus lift. Below, you’ll find an overview of the necessary preliminary examinations, diagnostics, and the step-by-step procedure of the surgery.
Preliminary Examination and Diagnostics
A sinus lift always begins with a thorough examination. Using digital volume tomography (DVT), the bone structure of the maxilla and sinus floor is assessed in detail, including bone thickness, position, and the shape of the sinus cavities. The three-dimensional imaging provides crucial information for the surgical procedure — such as the exact location of blood vessels, nerves, and the bone’s structure. Based on this diagnostic data, an individualized treatment plan is developed to determine the optimal approach for the sinus lift.
Treatment Planning
The treatment plan defines the surgical steps and the most suitable grafting material, tailored to the patient’s individual anatomy and clinical findings. Proper planning is key to a successful outcome. The procedure is typically performed under local anesthesia and designed to be as comfortable and pain-free as possible. However, patients who prefer to undergo treatment under general anesthesia can do so in collaboration with our specialist in anesthesiology and intensive care — following a detailed consultation. Precise surgical planning and careful post-operative care are critical to ensure optimal healing and long-term success.
Surgical Procedure
The sinus lift is performed using a minimally invasive and safe technique. The required level of sinus floor elevation depends on the planned implant height. Generally, a small opening is created in the bone wall of the sinus cavity, allowing the sinus membrane to be gently lifted. The space beneath this membrane is then filled with bone graft material to create the necessary bone height for future implant placement. After surgery, patients are prescribed antibiotics, pain medication, and an antiseptic mouth rinse to minimize the risk of infection and support healing.
Post-Treatment Care
Following a sinus lift or bone augmentation, patients are advised to rest for a few days to support the healing process. Avoid strenuous physical activity, sports, or heavy lifting, as well as exposure to heat sources like saunas or direct sunlight. Typically, normal daily activities and work can be resumed after about three days.
Aftercare and Healing Process
Proper aftercare and a well-monitored healing phase are crucial to the success of a sinus lift or bone augmentation. Below, you’ll find essential information on post-operative care, possible complications, and the expected healing timeline.
Post-Operative Care
Following a sinus lift, diligent post-operative care is essential. This includes strictly following your dentist’s instructions, taking prescribed medications as directed, and avoiding any pressure or strain in the treated area. Regular check-up appointments ensure that the healing progress is carefully monitored and that any issues can be addressed early.
Possible Complications
As with any surgical procedure, complications may occur after a sinus lift. These can include swelling, bleeding, or infection. In rare cases, a small perforation of the sinus membrane may develop. However, with careful aftercare and prompt medical supervision, such complications can typically be managed effectively and without lasting consequences.
Healing Timeline and Process
The healing time after a sinus lift depends on the extent of the procedure and the individual’s healing capacity. Generally, full recovery takes several months. During this period, the bone graft material integrates with the natural bone, creating a solid and stable foundation for future dental implants. Regular follow-up appointments are important to monitor progress and ensure that healing is proceeding as planned.
Author
Dr. Matthias Göstel
Dentist, Medical Director
Dental Clinic Vienna Döbling
05.10.2025
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Frequently Asked Questions (FAQ) about Bone Augmentation and Sinus Lift
Here you’ll find the most frequently asked questions. If you have any further inquiries, feel free to contact us and schedule a consultation appointment. We are available Monday to Friday, 8 AM – 6 PM, at 01 320 97 97, or you can conveniently use our online booking system. We look forward to your visit!
Bone augmentation, also known as augmentation surgery, is a procedure used to restore lost bone tissue in the jaw. It is necessary to create sufficient bone density and height so that dental implants can be securely anchored. Without enough bone, implants may not be stable and could fail over time.
Common causes of bone loss include tooth loss, periodontitis, or injuries. Bone augmentation restores the foundation needed for stable, long-lasting implants, significantly improving both oral health and quality of life.
There are several methods, including autologous, allogeneic, xenogeneic, and alloplastic bone grafts:
Autologous bone grafts use the patient’s own bone (from the jaw, hip, or skull). This is very effective because the bone is biologically compatible, minimizing rejection risk.
Allogeneic bone grafts use donor bone from another person, processed to ensure high biocompatibility and safety.
Xenogeneic grafts use bone from animal sources, typically bovine, which supports bone regeneration effectively.
Alloplastic materials are synthetic alternatives that are biocompatible and promote bone growth.
Each method has specific pros and cons, which are carefully evaluated individually.
A sinus lift is a surgical procedure that raises the floor of the maxillary sinus to create additional bone height. It is especially important when placing implants in the upper jaw where natural bone height is insufficient — for example, after tooth loss or due to anatomical conditions. This procedure provides the necessary bone volume and density for secure, long-lasting dental implants.
There are two main methods:
Internal sinus lift – a minimally invasive approach performed through the implant site, suitable for minor bone height increases. Recovery time is shorter, and in many cases, implant placement can occur in the same session.
External sinus lift – performed through a lateral access to the sinus wall, allowing for greater bone augmentation. This is recommended for more extensive bone loss and provides more stability and precision.
The choice depends on your anatomy and the extent of bone loss. Your dentist or oral surgeon will determine the best option based on your diagnostic results and individual needs.
Preparation includes several steps:
Examinations and diagnostics: Comprehensive imaging (X-rays, DVT scans) helps assess bone structure and plan the procedure precisely.
Treatment planning: The surgical steps and suitable materials are selected based on diagnostic results.
Consultation: Your dentist or surgeon will explain the procedure, anesthesia options, and aftercare instructions.
Thorough preparation is key to minimizing risks and ensuring successful results.
Postoperative care is crucial to healing:
Care: Follow your doctor’s instructions, take prescribed medication, and avoid physical strain.
Follow-up appointments: Regular check-ups ensure proper healing and allow early intervention if needed.
Diet: Eat soft foods and avoid hot, spicy, or hard foods in the first few days.
Avoid smoking and alcohol: This promotes healing and reduces complications.
Recovery time varies, typically lasting several weeks to months.
As with any surgery, certain risks exist:
Infection at the surgical site
Swelling and bleeding, usually subsiding after a few days
Sinusitis, which can develop after a sinus lift but is treatable
Pain, which can be managed with medication
Early detection and care minimize complications and ensure proper healing.
Healing time depends on the type of procedure and the patient’s individual healing capacity. Complete recovery usually takes a few months. Regular check-ups are essential to monitor bone integration and ensure optimal results.
Implants are typically placed after full bone healing — usually several months after the procedure. The exact timing depends on healing progress, as determined by your dentist or oral surgeon through follow-up visits.
During the procedure, you will not feel pain due to local anesthesia or general sedation. Afterward, mild to moderate discomfort is normal but can be managed with pain medication. Most patients report that discomfort subsides significantly after a few days. Proper aftercare and adherence to medical advice ensure a smooth recovery.
