Can You Get Dental Implants If You Have a Thin Jawbone?

"There isn't enough bone" is a sentence a great many people have heard, often years ago, often without a scan to back it up, and often without any explanation of what could be done about it. It closes down the conversation rather than opening it, which is a shame, because in most cases it describes a problem with a solution.

A thin ridge is not a single condition. It might mean a knife-edge crest that is perfectly tall but only three millimetres wide. It might mean adequate width with almost no height above the nerve. It might mean a defect on one surface only. Each of these calls for something different, and the difference is only visible in three dimensions.

This article explains what "thin" actually means clinically, why it happens, and the realistic options — including the option of not grafting at all.

Does a narrow ridge rule out implants?

A narrow ridge does not usually rule out implants. It changes what treatment involves. An implant needs to be surrounded by bone on all sides, with a reasonable thickness on the outer surface, so a ridge that is too narrow must either be widened, or an implant of a different diameter and position must be selected, or the design must place implants where bone remains. Bone grafting, ridge expansion and guided bone regeneration are all established approaches, and in some cases narrower implants or a design supported at different sites avoids grafting entirely. What determines the answer is a cone beam CT scan of the specific site, not a general statement about your jaw.

An implant is a cylinder placed within bone. For it to integrate and remain stable, bone must surround it — and the outer plate of bone, which is the thinnest, must be thick enough to survive the remodelling that follows surgery. Where an implant is placed in a ridge that is too narrow, the outer plate can resorb, exposing threads, compromising the gum contour and creating a site that is difficult to clean.

Height matters too, but height is often constrained by other structures — the inferior alveolar nerve in the lower jaw, the sinus in the upper. Width is more frequently the limiting factor in the front of the mouth and in long-standing gaps.

Aesthetics compound the problem. In the visible zone, a ridge that has collapsed inwards leaves the tooth position too far palatal, and the gum contour follows the bone. Our article on how gum shape affects implant results explains why the soft tissue cannot be separated from the bone underneath.

The bundle bone lining a tooth socket exists to serve the tooth. Once the tooth and its periodontal ligament are gone, that bone has no function and resorbs. Loss is greatest in the first six to twelve months and continues more slowly thereafter, and it affects width disproportionately because the outer plate is thinner than the inner.

Other contributors:

• Long-standing tooth loss. The longer the gap, the more resorption. Our article on the long-term cost of not replacing missing teeth covers this.

• Periodontal disease destroys supporting bone before the tooth is even lost.

• Traumatic extraction, where the outer plate is fractured during removal.

• Denture wearing, which loads the ridge in a way that accelerates resorption rather than maintaining it.

• Infection or a longstanding abscess at the site.

This is why socket grafting at the time of extraction is so frequently recommended — it is easier to limit the loss than to rebuild afterwards. See our article on alveolar ridge preservation.

Graft material is placed against the deficient surface and covered with a barrier membrane, which prevents faster-growing soft tissue from occupying the space while bone forms. This is the workhorse technique for width defects and can sometimes be performed at the same time as implant placement where the defect is modest.

Where the ridge is narrow but has a core of spongy bone between two plates, it can be gently expanded with specialised instruments, or split and eased apart, with the implant and graft material placed into the space created. This avoids harvesting bone and can shorten the timeline.

For larger defects, a block of bone — from elsewhere in the jaw or from a processed graft material — is fixed to the deficient area with small screws and allowed to consolidate before implants are placed. This is the more involved end of the spectrum and adds several months.

Options include your own bone, processed human bone, animal-derived mineral and synthetic materials, often in combination. Each has different handling characteristics and rates of turnover, and the choice depends on the defect. Your dentist should explain which is proposed and why.

Not every narrow ridge needs rebuilding.

• Narrower-diameter implants may be appropriate for smaller teeth such as lower incisors and upper lateral incisors, where load is lower.

• Repositioning the implant slightly to a site with better bone volume, with the crown designed to compensate.

• Angled placement, engaging bone that is available rather than bone that must be created. See our article on angled implants and stability.

• Fewer implants supporting a bridge rather than one implant per tooth.

• A different restoration entirely — a conventional bridge, a Maryland bridge for a single front tooth, or a well-made denture.

A plan that avoids grafting is not a lesser plan. It is often the more sensible one where medical factors, smoking status or personal preference make additional surgery unattractive.

• Clinical examination of ridge form, gum thickness and the smile line

• Cone beam CT with measurement of width and height at each proposed site

• Assessment of bone quality as well as quantity — see our article on why quality matters more than quantity

• Periodontal assessment of remaining teeth

• Digital planning, often with a surgical guide produced from the scan

• Medical history review, including any medication affecting bone

• A written plan setting out options, stages, timescales and fees

Our clinically-led guide to dental implants describes the pathway in full.

• Ask about socket grafting whenever an extraction is planned and implants may be considered later.

• Treat gum disease early — see our gum disease treatment page and our page on periodontitis.

• Do not smoke.

• Have loose or ill-fitting dentures reviewed rather than tolerated.

• Attend regular examinations so problems are caught before extraction becomes the only option.

The NHS provides general information about dental implants at nhs.uk.

Arrange an assessment if:

• You have been told there is not enough bone, but were never shown a scan.

• A tooth is due for extraction and you may want an implant later.

• You have worn a denture for years and the ridge feels flatter than it was.

• You notice a visible dip or hollow where a tooth used to be.

• An existing implant has exposed threads or the gum around it has receded.

• You want a written comparison of grafting versus non-grafting options.

• "Thin jawbone" is not one condition — width, height and defect shape all differ.

• An implant needs bone on all sides, with adequate thickness on the outer plate.

• Most bone loss occurs in the first year after extraction and affects width most.

• Guided bone regeneration, ridge expansion and block grafting are all established options.

• Narrower implants, repositioning or angled placement can sometimes avoid grafting.

• Socket grafting at extraction is far simpler than rebuilding a resorbed ridge later.

• Bridges and dentures remain legitimate alternatives where grafting is unattractive.

• Only a cone beam CT of your specific site can answer the question properly.

A thin ridge changes the plan rather than ending it. What it always requires is proper three-dimensional assessment, an honest account of what each option involves, and a decision made with the images in front of you rather than on the basis of a remark made years ago.

If you would like your bone volume assessed and your options set out in writing, you can book an appointment with our team at 22 Wimpole St, London W1G 8GQ, or telephone 020 7183 0692.

Dental symptoms and treatment options should always be assessed individually during a clinical examination.

This article is for general educational information only and is not professional dental advice, diagnosis, or a treatment recommendation. Information here is general and cannot replace an in-person assessment by a qualified, GDC-registered dental professional. Symptoms, suitability, fees, timelines, and outcomes vary according to individual clinical circumstances. If you have pain, swelling, or other concerning symptoms, seek prompt professional dental care. Always request a written treatment plan and cost estimate before proceeding with treatment.

Written Date: 26 August 2026

Next Review Date: 26 August 2027