Can I Get Dental Implants If I Don't Have Enough Jawbone?

Quite a few patients come to an implant consultation after being told elsewhere that treatment would be difficult because there is not enough bone. However, a lack of jawbone does not mean you have to give up on implants. In this article, I have summarized what I frequently explain to patients who come for implant consultations near Yaksu Station, Seoul, including those from Sindang-dong and Dasan-dong: why bone becomes insufficient, when bone grafting and sinus lifts are needed, and what changes in the treatment period and recovery process.

To give the conclusion first, the deciding factor is not whether there is bone or not, but the height, width and density of the remaining bone. If the shortage is not large, a bone graft can be done on the same day the implant is placed; if the shortage is large, we choose a staged approach, building up the bone first and placing the implant after some time. Which case applies to you can only be confirmed with a 3D CT scan, so rather than deciding in advance whether it is possible, I recommend having imaging done first.

Why Does the Jawbone Become Insufficient?

• Time since extraction: Where a tooth has been lost, the jawbone is gradually resorbed as chewing stimulation disappears. The changes tend to be greater in the early period after extraction, so the longer the space is left empty, the more likely it is that the bone has decreased.
• Gum disease (periodontitis): When inflammation continues over a long time, the bone that supported the tooth is lost along with it. By the time the tooth is extracted, the bone has already decreased considerably in many cases.
• Structure of the upper molars: Above the upper molars there is an empty space called the maxillary sinus. When this space extends downward, there is not enough height to place an implant.
• Long-term denture use: Because the gums bear the chewing force, resorption of the bone underneath can progress.

What Is a Bone Graft (Bone Grafting)?

Bone grafting is a process that supplements insufficient jawbone to create a foundation on which the implant can settle stably. The graft material itself does not simply turn into bone; rather, it supports the space and provides a place and framework into which your own bone can grow.

• Simultaneous procedure (immediate placement) : If the shortage is not large, the implant placement and the bone graft are done on the same day. This reduces the number of surgeries and shortens the overall period.
• Staged procedure (delayed placement) : If the defect is extensive, the bone graft is done first, and the implant is placed after waiting for the bone to settle. The waiting period varies depending on the site and the amount of graft. [3 to 6 months or more]
• Choice of graft material: Options include autogenous bone, allograft, xenograft and synthetic bone, which are combined depending on the shape and location of the defect. Please ask during your consultation which material was chosen and why.

For Upper Molars, a Sinus Lift Is Also Considered

In the upper molar area, the height up to the maxillary sinus is insufficient in many cases, so we also consider a sinus lift, in which the membrane on the floor of the sinus is carefully lifted and the space beneath it is filled with bone. The approach depends on the remaining bone height.

• Crestal approach (vertical lift): When a reasonable amount of bone height remains, a small amount is lifted through the hole prepared for the implant. Swelling and the burden of recovery tend to be relatively lower.
• Lateral approach (lateral window lift): When very little bone height remains, a small window is made on the side of the gum to lift a wider area. More height can be gained, but a longer recovery period is needed.

The sinus membrane is thin, so it is important to handle it without damaging it. If you have a history of nasal conditions such as sinusitis or rhinitis, please let us know in advance so that we can take it into account when planning the surgical method and timing.

Even if you have been told that you do not have enough bone, once the amount and shape of the remaining bone are checked with a 3D CT scan, other options, including bone grafting and sinus lifts, remain in many cases.

How Do the Treatment Period and Recovery Differ?

When a bone graft is included, the overall schedule can be longer than for a standard implant. If both are done on the same day, the difference is not large, but if the treatment is staged, a period of waiting for the bone to settle is added. Swelling or bruising may occur for a few days after surgery and usually subsides over time. Please follow these points during recovery.

• Do not touch the surgical site with your tongue or fingers
• Do not blow your nose hard or use a straw — this is especially important if you have had a sinus lift
• Do not smoke — smoking is a typical factor that interferes with the grafted bone settling in
• Take your prescribed medication and keep your scheduled follow-up appointments

What to Check During Your Consultation

• The height and width of the remaining bone confirmed on the 3D CT, and the amount of graft needed at that site
• Whether a simultaneous procedure is possible or the treatment must be staged, and why
• The type of graft material to be used and the reason for choosing it
• If a sinus lift is needed, the approach and the expected recovery period
• The overall schedule, the number of visits, and the breakdown of costs 
• Whether the plan will be adjusted for your general health, such as diabetes or taking osteoporosis medication

Care guidelines for keeping your implant in use for a long time after placement are summarized in a separate column, "Implant Aftercare: Long-Lasting Habits and Checkup Criteria."
https://allcaredc.kr/column/implant-aftercare

When a new implant is placed where a previous one failed, bone grafting is also needed in many cases. The criteria for revision surgery are summarized in "Implant Revision Surgery: When Is It Needed and What Should Be Checked?"

Closing Thoughts

Being told that you lack bone often means not that an implant is impossible, but that one more preparatory step is needed. What matters is checking the condition of the remaining bone accurately and deciding, with clear reasons, whether to do the procedures at the same time or in stages. If you have been told elsewhere that treatment would be difficult, or if you have a space that has been empty for a long time, please first check the possible options and their order through a 3D CT diagnosis at Allcare Dental Clinic (02-2232-2911), near Exit 5 of Yaksu Station, Seoul.