Bone graft and sinus lift in Turkey: a solid base for implants

Why a bone graft for dental implants is sometimes needed

Bone in the jaw exists to hold teeth. Once a tooth is gone, the ridge starts to shrink, fastest in the first months and mostly on the cheek side. Studies commonly report a loss of several millimetres of width within the first year after extraction. Gum disease, infections around failing teeth, trauma and years of denture pressure add to the loss.

In the upper back jaw there is a second problem: the maxillary sinus tends to expand downwards into the space left by missing molars, so the bone below it becomes thinner. It is common to find only a few millimetres of bone where an implant would need eight or more.

How much bone does an implant need?

As a rule of thumb, a standard implant needs:

• about 1.5-2 mm of bone around it on the cheek and tongue sides, more at the front for aesthetics
• about 1.5 mm to the neighbouring tooth root and about 3 mm between two implants
• a safe distance of about 2 mm above the nerve canal in the lower jaw
• enough height below the sinus for an implant of roughly 8 mm or more, although modern short implants of 6 mm are an option in selected cases

These are measured on a 3D CBCT scan, which also shows bone density. Dense lower-jaw bone gives high primary stability; soft upper-jaw bone may call for a different drilling protocol, a hydrophilic implant surface or a longer healing time.

Types of bone augmentation compared

Internal and lateral sinus lift in more detail

In an internal (crestal) sinus lift, the implant site is prepared to just below the sinus floor, which is then gently tapped upwards together with its lining (the Schneiderian membrane). Graft material is placed underneath and the implant is inserted in the same step. Typical gains are around 3-4 mm.

In a lateral sinus lift, a small window is made in the outer wall of the upper jaw above the missing teeth. The membrane is lifted and the space beneath filled with graft material. This can add around 10 mm or more of height. If enough bone remains to hold the implant firmly, it is placed at the same time; otherwise it follows after the graft has matured.

Graft materials and membranes

Many grafts combine a small amount of your own bone with a substitute. The graft is covered with a membrane, most often resorbable collagen, which keeps soft tissue out while bone grows in. Larger defects sometimes need a non-resorbable or titanium-reinforced membrane, which is removed at the implant stage. If you have dietary, ethical or religious concerns about bovine or donor material, tell your coordinator early so the plan can reflect them.

Who bone grafting suits, and who it does not

Grafting suits most healthy adults with localised bone loss. It is less predictable, and sometimes inadvisable, if you:

• smoke heavily and cannot stop around surgery and healing
• have poorly controlled diabetes
• have active, untreated gum disease; see gum treatment
• receive intravenous bisphosphonates or similar bone medication, or have had radiotherapy to the jaws
• have chronic sinusitis or nasal polyps, in the case of a sinus lift, until cleared by an ENT specialist
• cannot commit to a longer timeline and possibly a third trip

Alternatives to bone grafting

A graft is a means to an end. Depending on your scan, these alternatives may achieve a good result with less surgery:

• Short implants of around 6 mm in selected cases with limited height
• Narrow-diameter implants for thin ridges, for example lower front teeth
• Angled implants as in All-on-4, which use the stronger bone at the front of the jaw
• Zygomatic implants anchored in the cheekbone for severe upper-jaw loss
• A tooth-supported bridge or a denture, when implants would require more surgery than the benefit justifies

Your plan explains why grafting was chosen over an alternative, or why not.

Your treatment in Istanbul, trip by trip

The whole sequence can take from about six months for a simple case to twelve months or more for staged grafting. Our guide on how long dental implants take in Turkey shows how grafting fits into the wider implant timeline, and our dental implants in Turkey page covers implant options and systems.

Recovery after a bone graft or sinus lift

Grafting is done under local anaesthesia, with sedation available. Afterwards, swelling and bruising are more noticeable than after a simple implant and usually peak on day two or three. A lateral sinus lift or block graft can cause visible bruising on the cheek for a week or so. Painkillers, cooling and, where prescribed, antibiotics keep most people comfortable.

After a sinus lift, protect the sinus for about two weeks: no nose blowing, sneeze with your mouth open, avoid straws, heavy lifting and diving. A slight nosebleed on the first day can be normal. After a lateral sinus lift, the flight home is usually planned around a week after surgery; after an internal lift a few days are usually enough.

Risks and how they are reduced

• Graft or membrane exposure: the wound opens and graft material shows. Often manageable with rinses and review, sometimes requiring partial removal.
• Infection: reduced by sterile technique, antibiotics where indicated and treating gum disease beforehand.
• Sinus membrane perforation: reported in a notable share of lateral sinus lifts; small tears are usually repaired with a membrane during surgery, larger ones may mean stopping and trying again later.
• Post-operative sinusitis: uncommon, more likely with pre-existing sinus problems.
• Partial resorption: some graft volume is lost as it matures; a small top-up can be needed at implant placement.
• Nerve irritation: relevant for grafts or bone harvesting in the lower jaw, and planned around on the CBCT.

Careful case selection, precise 3D planning, tension-free wound closure and a patient who follows the aftercare instructions make the biggest difference.

What shapes your treatment plan and quote

Your plan depends on the type and size of the graft, the number of sites, the graft material and membrane, whether the implant can be placed in the same session, sedation, and hotel nights and transfers for each trip. Each item is listed in writing. For our starting fees, see dental costs in Turkey.

Follow-up and guarantee

You receive written guarantee terms with your plan, and a record of the materials used. Between trips your coordinator stays in contact; if you notice pain, swelling or material coming through the gum, a dentist reviews it with you and advises whether it can be handled by a local dentist or needs attention in Istanbul. Before implant placement, a new CBCT confirms that the graft has matured as planned.