Short answer: A dental implant infection (peri-implantitis) is a condition in which inflammation of the gum around an implant is accompanied by progressive loss of the bone supporting the implant. Its most common signs are bleeding, swelling, pus and gum recession; pain often appears late. The main cause is bacterial plaque. Treatment ranges from cleaning to surgery; regular care and check-ups are the foundation of prevention.
Dental implants are titanium or zirconia screws placed to replace lost teeth that fuse with the jawbone. An implant cannot decay; however, the surrounding gum and bone can be affected by bacterial plaque, just as with natural teeth. Popularly known as an implant infection and medically called peri-implantitis, this condition can lead to loss of the bone supporting the implant if it is not noticed early. In this article we explain what peri-implantitis is, the symptoms it shows, why it develops, how it is treated and what you can do to protect your implant for many years.
What is peri-implantitis?
Peri-implantitis is an infection-related condition in which inflammation of the soft tissues around an implant is accompanied by progressive loss of the bone supporting the implant. In short, it can be thought of as the implant counterpart of advanced gum disease (periodontitis) in natural teeth.
It is important to distinguish this condition from the milder peri-implant mucositis that precedes it:
- Peri-implant mucositis: The inflammation is limited to the gum around the implant; there is no bone loss. The gum shows redness, swelling and bleeding when brushing. This stage can often be reversed with proper cleaning and care.
- Peri-implantitis: The inflammation has progressed to the bone, and bone loss around the implant is seen on X-rays. At this stage treatment is more extensive, and it may not always be possible to fully regain the lost bone.
In everyday language, "implant infection" usually refers to both conditions together. Yet the distinction is decisive for treatment: interventions at the mucositis stage are usually simple and short, whereas once bone loss has begun, treatment may require more sessions and sometimes surgery. For this reason, the condition of the tissues around the implant is monitored with measurements at routine check-ups, even when there are no symptoms. Because it can appear even years after the implant is placed, this monitoring continues for as long as the implant is in the mouth.
The transition from mucositis to peri-implantitis usually happens silently. This is why it is very important for people with implants to be aware of the symptoms and to attend regular check-ups.
Symptoms
The earliest and most common sign of implant inflammation is bleeding and redness of the gum around the implant; pain, on the other hand, often appears only at a late stage or may not occur at all. That is why the idea that "if it doesn't hurt, there's no problem" can be misleading with implants.
Symptoms to watch for include:
- Bleeding around the implant when brushing or flossing
- Redness, swelling and tenderness of the gum
- Pus coming from around the implant, a bad taste or odor in the mouth
- Gum recession, with the metal part of the implant or the screw threads becoming visible
- Discomfort in the implant area when chewing
- At an advanced stage, the implant or the tooth on it becoming loose
At the examination, the dentist measures the pocket depth around the implant, checks for bleeding on probing and assesses the bone level with X-rays. Comparing with X-rays taken when the implant was placed is helpful for understanding changes in the bone level.
Causes
The main cause of peri-implantitis is bacterial plaque that builds up around the implant; certain risk factors make it easier for this process to develop. The main risk factors are:
- Inadequate oral hygiene: Not cleaning around the implant regularly, especially under the prosthesis and between the teeth.
- A history of gum disease: The risk is higher in people who lost their teeth because of gum disease.
- Smoking: It has a negative effect on blood supply to the tissues and on healing; it can also mask symptoms.
- Uncontrolled diabetes: It reduces resistance to infection and delays healing.
- Excess cement: With cemented prostheses, cement residue left under the gum can provide a breeding ground for bacteria.
- Prosthesis design that is hard to clean: Prostheses that a brush and floss cannot reach underneath increase plaque buildup.
- Missing regular check-ups: Without professional care and monitoring, early symptoms can be missed.
The link between overloading, such as teeth clenching and grinding, and peri-implantitis is debated. However, because these habits can cause prosthetic parts to break and loosen, they are assessed separately.
Treatment methods
Treatment of peri-implantitis aims to bring the infection under control, clean the implant surface and, if possible, stop bone loss; the method used depends on the severity of the disease. Treatment generally follows a step-by-step approach:
- Non-surgical treatment: In the first step, the implant surface and its surroundings are cleaned with special instruments, and bacterial plaque and tartar are removed. The area may be irrigated with antiseptic solutions. Oral care is reorganized and risk factors are addressed.
- Review of the prosthesis: If necessary, the prosthesis is removed and cleaned underneath, any excess cement is removed, and a design that is hard to clean is modified.
- Medication support: When the dentist deems it necessary, local or systemic antibiotics may be added to the treatment. The choice of medication and how it is used are determined only by the dentist.
- Surgical treatment: If the first step does not produce a sufficient response, the gum is opened and the implant surface is cleaned directly. Depending on the shape of the bone loss, reshaping the tissues or supporting the lost area with bone grafts and membranes may be considered.
- Removing the implant: If bone loss is very advanced and the implant is loose, the implant may need to be removed. After the area heals, a new implant can be planned if suitable conditions are present.
After treatment, regular follow-up is as important as the treatment itself for maintaining success. Because peri-implantitis can recur, check-up intervals are usually shortened.
Prevention and care
The foundation of preventing implant infection is cleaning around the implant well every day and regular professional check-ups. You can add the following tips to your daily habits to protect your implant:
- Brush twice a day: Using a soft-bristled brush, pay attention to where the implant meets the gum.
- Don't neglect the spaces between teeth: Interdental brushes, floss designed for implants or a water flosser help you clean under and around the prosthesis. Ask your dentist which tool suits you.
- Quit smoking: This is an important step both for the longevity of your implant and for your general health.
- Keep your blood sugar under control: If you have diabetes, following your doctor's recommendations also protects your oral health.
- Don't skip check-ups: At check-ups, usually every 3–6 months, the area around the implant is measured, professional cleaning is done and X-rays are taken when deemed necessary.
- Take early signs seriously: If you notice bleeding or swelling around the implant, don't wait for your next check-up.
If you are considering clear aligners or another orthodontic treatment for your teeth, the implants in your mouth are taken into account in planning because they will not move; you can discuss this with your dentist at the examination. For other questions about implant care, you can visit our frequently asked questions page.
If you have complaints around an implant
If you notice bleeding, swelling, a bad taste or gum recession around your implant, it is recommended that you have a check-up even if the symptoms are mild. Mucositis caught early can usually be controlled with simple methods. At our polyclinic in Park Oran Ofis, the tissues around the implant are evaluated with an examination and X-rays, and a treatment and care plan suited to your situation is created together with you.
Frequently asked questions
Does an implant infection go away on its own?
Inflammation around an implant usually does not go away on its own; it can progress unless the bacterial plaque is removed. Early-stage mucositis often resolves with professional cleaning and good oral care. If bone loss has begun, more extensive treatment may be needed.
Does peri-implantitis cause implant loss?
Untreated, progressing peri-implantitis can lead to loss of the bone supporting the implant and eventually to the implant becoming loose. With early diagnosis and appropriate treatment, many implants can be saved. If bone loss is very advanced, the implant may need to be removed.
How often should people with implants have check-ups?
The general recommendation is for people with implants to see a dentist every 3–6 months. For those with risk factors such as a history of gum disease, smoking or diabetes, the check-up interval may be shorter. Your dentist sets the frequency of check-ups according to your personal risk.
Is bleeding around an implant normal?
The gum around a healthy implant should not bleed when brushing or flossing. Bleeding is often the first sign that inflammation has started around the implant. If you notice this symptom, it is recommended that you have an examination.
