When people are told they may not have enough jawbone for dental implants, it can feel like the door has closed on a treatment they were hoping for. In many cases, though, a sinus lift and bone graft are the procedures that make implant placement possible.
These are surgical procedures designed to rebuild or augment bone in the upper jaw. They are most commonly recommended when bone loss from missing teeth or gum disease has left insufficient bone height or volume to support an implant securely.
At Casey Dentists, Dr Matthew Casey brings extensive implant training to the assessment and planning of bone augmentation procedures, as part of a dental implant treatment pathway that is thoroughly explained at every stage.
Quick Overview
- A sinus lift and bone graft are surgical procedures that rebuild bone in the upper jaw to make dental implant placement viable where insufficient bone exists.
- They may be recommended for patients who have experienced bone loss after tooth extraction, gum disease, or long-term missing teeth, particularly in the molar and premolar area.
- Both procedures involve adding bone material to the jaw and require a healing period before implants can be placed, though individual timelines vary.
- What influences the outcome includes the type and volume of bone graft material used, the patient’s healing response, and whether complications such as sinus membrane perforation occur.
- An assessment by your dentist, including imaging of the jaw and sinus anatomy, guides whether these procedures are appropriate for your situation.
Keep reading to understand how a sinus lift and bone graft work, what to expect during and after surgery, and how the two procedures relate to your implant pathway.
What Is a Sinus Lift?
A sinus lift, also called sinus augmentation, is a surgical procedure that increases the amount of bone in the upper jaw in the area of the molars and premolars. It is needed when the maxillary sinuses sit too close to the upper jaw, leaving insufficient bone height to place an implant without risk of entering the sinus cavity.
During the procedure, a small window is created in the bone of the upper jaw. The sinus membrane is gently elevated, and bone graft material is placed in the newly created space between the jaw and the sinus floor. Over the following months, this material integrates with the natural bone, increasing the bone height available for implant placement.
In some cases, it may be possible to place the implant at the same time as the sinus lift. In others, a separate healing period is required first. Your dentist will assess your bone height and anatomy before advising which approach is appropriate for you.
What Is a Bone Graft and How Does It Differ?
A bone graft is a broader procedure that adds bone material to any area of the jaw where bone volume is insufficient. It is not specific to the upper jaw or the sinus region. A sinus lift is technically a type of bone graft, but one that specifically addresses the sinus anatomy of the upper jaw.
Bone graft material may be sourced from four main origins: your own body (an autograft, which integrates well but requires a second surgical site), a human donor source (an allograft), animal-derived bone such as bovine bone (a xenograft, which provides a scaffold for new bone growth), or synthetic materials. Your dentist will discuss which type is most suitable given your bone deficiency, overall health, and treatment plan.
The purpose of both procedures is the same: to create enough bone volume and density to anchor a dental implant securely in the jawbone.
Why Do Some Patients Need These Procedures Before Implants?
Bone loss in the jaw occurs naturally after teeth are lost. Without the stimulation that tooth roots provide when biting and chewing, the surrounding bone begins to resorb over time. The longer the teeth have been missing, the more bone is typically lost.
Gum disease can accelerate this process by damaging the bone and gum tissue that support the teeth. Injury and previous extractions can also reduce available bone. In the upper jaw, the proximity of the maxillary sinuses creates an additional constraint: there is often less vertical bone height in the molar and premolar region than in other areas, even before significant resorption has occurred.
When bone volume falls below the threshold needed for a stable implant, a bone graft or sinus lift gives the jaw the foundation it requires. Without adequate bone, an implant cannot integrate properly, which increases the risk of treatment failure.
What Are the Risks of a Sinus Lift?
A sinus lift is a surgical procedure and, like any surgery, carries risks. The most common complication is perforation of the sinus membrane during the elevation step. A 2024 PLOS ONE systematic review analysed 2,168 lateral sinus lift procedures and found an overall membrane perforation rate of 19%. Small perforations can often be managed during the procedure; larger ones may require the surgery to be paused and rescheduled.
Other potential complications include swelling, excessive bleeding, nasal congestion, and post-operative sinus infection. Some patients experience increased pain or discomfort during the healing period. Your dentist will explain the specific risks relevant to your anatomy before proceeding.
A thinner sinus membrane is associated with a higher risk of perforation, which is one reason detailed imaging of the sinus anatomy before surgery is important for planning and risk assessment.
What Happens After a Sinus Lift and Bone Graft?
Recovery from a sinus lift or bone graft follows a predictable pattern, though individual timelines vary. Most patients experience swelling, some discomfort, and minor bruising in the days after surgery. These symptoms are a normal part of the healing response and typically begin to improve within the first week.
Some important aftercare points include:
- Avoid blowing your nose or sneezing with your mouth closed following a sinus lift procedure, as pressure in the sinus area can dislodge the graft material
- Eat soft foods and avoid placing pressure on the surgical site
- Take any prescribed medication as directed and complete the full course of any antibiotics given
- Attend all follow-up appointments so your dentist can monitor the graft site and check for early signs of complications
Once the graft has integrated with the existing bone, the site is assessed for readiness for implant placement. The integration period varies depending on the extent of the graft and individual healing; your dentist will advise on the expected timeline at your follow-up appointments.
How Does This Fit Into the Implant Process at Casey Dentists?
Sinus lift and bone graft procedures are part of a comprehensive planning process, not an add-on or afterthought. At Casey Dentists, the treatment pathway for dental implants begins with a thorough examination that includes 3D dental scans, clinical photography, and a detailed assessment of bone volume and sinus anatomy. This level of planning is what determines whether augmentation procedures are needed and, if so, which approach is most appropriate.
Dr Matthew Casey completed a Master’s Clinician program in Oral Implantology and has undertaken extensive training in implant dentistry, including complex cases involving bone augmentation. His experience in this area means that sinus lift and bone graft procedures are assessed with the clinical depth these cases require.
Not every patient considering dental implants will need a bone graft or sinus lift. Dental treatment assessment and planning are the only way to determine what your situation calls for, which is why a detailed examination is the starting point for every patient at Casey Dentists.
At Casey Dentists, our experienced dental team serving Townsville takes the time to understand your concerns, explain your options clearly, and develop a treatment plan that is right for you and your long-term oral health. If you have questions about dental implants and bone augmentation, we are happy to help.
Request an appointment or call us on 07 4801 7035. Emergency after-hours support is available seven days a week.
Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.
Frequently Asked Questions
Does everyone who wants dental implants need a sinus lift or bone graft?
No. These procedures are only needed when there is insufficient bone volume or height in the jaw to support an implant securely. Many patients have adequate bone and can proceed directly to implant placement. A thorough assessment, including imaging of the jaw and sinus anatomy, is the only way to determine whether augmentation is required for your situation.
How long does it take for a bone graft or sinus lift to heal before an implant can be placed?
The integration period typically ranges from three to nine months, depending on the extent of the graft, the type of bone material used, and individual healing factors. Your dentist will advise on the expected timeline based on your specific anatomy and clinical needs.
Can a sinus lift and dental implant be placed at the same appointment?
In some cases, yes. If there is sufficient existing bone height in the upper jaw, a sinus lift and implant placement may be performed at the same appointment, reducing overall treatment time. Where bone height is too low to stabilise the implant during the sinus lift, the procedures need to be staged: the sinus lift is completed first, the graft is left to integrate over several months, and the implant is placed once the new bone is ready. Your dentist will advise which approach is appropriate based on your imaging and anatomy.
Can a sinus lift or bone graft fail?
These procedures can fail if the graft material does not integrate with the natural bone, if infection develops, or if post-operative care instructions are not followed. Sinus membrane perforation during a sinus lift is the most common intraoperative complication and, depending on its extent, may require the procedure to be paused. Close follow-up with your dentist supports early identification of any complications.
References
Yang, B., Wang, T., Wen, Y. and Liu, X. (2024). ‘Association between Sinus Septa and Lateral Wall Thickness with Risk of Perforation during Maxillary Sinus Lift Surgery: A Systematic Review and Meta-Analysis’. PLOS ONE, 19(8), 8 August. San Francisco, CA: Public Library of Science. https://pmc.ncbi.nlm.nih.gov/articles/PMC11309397/
Healthdirect Australia. (n.d.). ‘Dental Implant’. Healthdirect. Canberra, ACT: Australian Government Department of Health. https://www.healthdirect.gov.au/dental-implant
Better Health Channel. (n.d.). ‘Dental Treatment’. Better Health Channel. Melbourne, VIC: Victorian Government Department of Health. https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/dental-treatment
Mayo Clinic. (2023). ‘Periodontitis — Symptoms and Causes’. Mayo Clinic, 24 February. Rochester, MN: Mayo Foundation for Medical Education and Research. https://www.mayoclinic.org/diseases-conditions/periodontitis/symptoms-causes/syc-20354473