How to Spot the Early Signs of Peri-implantitis

An implant that has integrated successfully is not finished business. The tissue around it remains vulnerable in a way that the tissue around a natural tooth is not, and problems there are the most common cause of late implant loss.

The critical point is that there is a reversible stage before the destructive one — and the reversible stage is easy to miss.

Peri-implant mucositis is inflammation of the soft tissue around an implant, without loss of supporting bone. It is the analogue of gingivitis, and like gingivitis it is reversible with proper cleaning and professional treatment.

Peri-implantitis is inflammation accompanied by progressive loss of the bone supporting the implant. It is the analogue of periodontitis, and the bone lost does not reliably come back.

Mucositis precedes peri-implantitis in essentially every case. Not all mucositis progresses, but peri-implantitis does not arise without it.

This is why the early signs matter so much. Catching it at the mucositis stage means treating something reversible. Catching it later means managing bone loss.

Our article on early versus late implant failure covers where this sits in the wider picture.

This is the central difficulty.

Implants have no periodontal ligament. In a natural tooth, that ligament carries proprioceptive nerve fibres that provide sensation about pressure and, indirectly, about inflammation. An implant is fused directly to bone and has no such feedback.

The soft tissue attachment around an implant also differs. Around a natural tooth, collagen fibres insert perpendicularly into the cementum, forming a genuine attachment. Around an implant, the fibres run parallel to the surface, forming a weaker seal. The blood supply is more limited, being derived only from the surrounding periosteum and mucosa rather than from a periodontal ligament as well.

The result is a less resistant barrier with less sensation behind it. Bone can be lost over months without discomfort.

By the time an implant feels loose, the bone loss is usually advanced. Mobility is a late sign, not an early one.

These are what to look for.

Bleeding when you clean around the implant. The single most important early sign. Healthy peri-implant tissue does not bleed on gentle cleaning. Bleeding on probing is the defining clinical feature of peri-implant mucositis.

A change in gum colour. Healthy tissue is pale pink and firm. Inflamed tissue is redder, sometimes purplish, and looks glossy.

Swelling or puffiness around the implant crown, or a loss of the sharp knife-edge contour where the gum meets the restoration.

Tenderness when cleaning or on pressure. Mild rather than sharp.

A persistent bad taste or odour localised to that area, often noticed after flossing there.

Gum receding around the implant, exposing more of the abutment or restoration, sometimes appearing as a grey line.

Food packing in a place where it did not previously.

Floss shredding or catching around the restoration.

A feeling that the area is "not quite right" without being able to specify why. This is worth reporting rather than dismissing.

Our article on sore gums around an implant covers the differential.

By this stage bone loss is usually established:

• Pus discharge on pressure around the implant

• Deep pockets detectable on probing

• Visible threads of the implant

• Marked recession

• Any mobility of the implant itself

• Discomfort on chewing

• Swelling of the face

Implant mobility means loss of integration and is usually not recoverable. A loose implant is a different situation from a loose crown or a loose screw — those are mechanical and often repairable. Report any movement urgently.

Our article on whether an implant can become infected years later covers late infection, and our article on whether a failed implant can be replaced covers what follows.

Self-examination identifies signs worth reporting. Diagnosis requires:

Probing around the implant with an appropriate instrument, recording depths and bleeding. Probing implants is safe and necessary — the idea that it should be avoided is outdated.

Radiographs compared against baseline films taken at the time the restoration was fitted. This comparison is the only way to establish whether bone has been lost, which is why the baseline matters and why it is worth knowing whether yours exists.

Assessment of the restoration, including whether excess cement is present. Residual cement beneath the gum is a recognised cause of peri-implant disease, and it is one reason screw-retained restorations are often preferred where the position allows.

Assessment of the prosthesis contour, since a design that cannot be cleaned makes the disease difficult to control regardless of effort.

A history of periodontitis. The strongest risk factor. Someone who lost teeth to gum disease is at raised risk of peri-implant disease. Our article on implants with gum disease covers the implications.

Smoking. Substantially raises risk. Our article on implants for smokers covers the long-term picture.

Poor plaque control. The direct cause.

Poorly controlled diabetes. Our article on diabetes and implant healing covers the relationship.

Residual cement.

Restorations that cannot be cleaned, including over-contoured crowns and bridges with inadequate access. Our article on cleaning under an All-on-4 bridge covers full-arch maintenance.

Absence of maintenance. People who stop attending after treatment is complete are at markedly higher risk.

Bruxism, which contributes mechanically. Our article on bruxism and implant screws covers this.

Dry mouth. Our article on dry mouth and implant failure covers the mechanism.

For mucositis: improved plaque control, professional cleaning with instruments that do not scratch titanium, correction of any cleaning access problem, and reassessment. Frequently resolves.

For peri-implantitis: non-surgical debridement first, often with adjunctive measures, then reassessment. Where pockets and bone loss persist, surgical access is usually needed to decontaminate the implant surface, sometimes with regenerative or resective procedures. Outcomes are less predictable than for periodontitis, largely because implant surfaces are roughened to encourage integration and are consequently difficult to decontaminate.

Where bone loss is advanced, removal of the implant may be the appropriate course.

The gap in predictability between treating mucositis and treating peri-implantitis is the reason this article exists.

Our dental implants page explains treatment, and our article on whether All-on-4 can fail covers full-arch risks.

• Clean around implants daily, including interdentally, with implant-appropriate tools

• Attend maintenance appointments at the interval advised, typically three to six months

• Ensure baseline radiographs exist and that comparison films are taken periodically

• Stop smoking

• Control diabetes

• Treat and maintain periodontal health on the remaining natural teeth

• Report early signs rather than waiting for pain

Our article on cleaning an implant compared with a natural tooth covers the daily routine, and our dental hygiene page covers professional maintenance.

Will peri-implantitis hurt?

Usually not in the early stages, and often not until it is advanced. Implants lack the periodontal ligament that provides sensation around natural teeth. This is precisely why the visual and bleeding signs matter.

Is bleeding around an implant serious?

It indicates inflammation and warrants assessment. At the mucositis stage it is reversible with cleaning and professional treatment. It is the earliest reliable sign and should not be ignored.

Can peri-implantitis be treated?

Mucositis usually resolves with improved cleaning and professional treatment. Peri-implantitis is treatable but less predictable, because the roughened implant surface is difficult to decontaminate, and bone already lost does not reliably regenerate.

Does a loose crown mean the implant is failing?

Not necessarily. A loose crown or abutment screw is a mechanical problem and often repairable. A loose implant is a different matter and indicates loss of integration. Have any movement assessed promptly.

How often should implants be checked?

Typically every three to six months for maintenance, with radiographs at intervals determined by your clinician. People with a history of periodontitis usually need shorter intervals.

Can I probe around my own implant?

No, and you should not attempt to. Report the signs — bleeding, colour change, swelling, odour — and let a clinician carry out the assessment with appropriate instruments.

Does having had gum disease mean I will get peri-implantitis?

It raises the risk substantially and means maintenance is more important, but it does not make it inevitable. Well-maintained implants in treated periodontal patients can serve for many years.

If the gum around an implant bleeds when you clean it, that is the point at which the condition is most treatable. It is worth an appointment rather than a wait-and-see approach.

If you have implants and have not had them reviewed with radiographs compared against baseline, that comparison is what establishes whether bone has been lost.

You can contact our team to arrange an assessment at our Wimpole Street practice. Our dental implants and gum disease treatment pages explain what is involved.

This article provides general information and does not constitute individual dental advice. Peri-implant disease can only be diagnosed clinically, through probing and radiographic comparison against baseline films. Self-examination may identify signs worth reporting but cannot establish whether bone loss has occurred. Implant treatment carries risks including peri-implant disease and implant loss, and outcomes depend on maintenance, general health and individual factors. Wimpole Dental is regulated by the Care Quality Commission, and our clinicians are registered with the General Dental Council.

Next review due: 2 September 2027