What complications can arise after dental implant placement?

A properly inserted dental implant will heal without complications if the instructions are followed; however, complications may occur in some patients. Most problems arise between the third and fourth week after the procedure, when the implant is still firmly attached to the bone (osseointegration). Below you will find an overview of the most common problems, their causes, symptoms and procedures for when it is necessary to consult an implantologist.

Why complications arise

Complications are divided into surgical (related to the insertion of the implant) and patient-related (lifestyle, hygiene, failure to follow rest instructions).

The following factors play a key role:

• Mechanical overload of the implant due to chewing too soon.
• Bacterial infection around the wound.
• Insufficient bone or gum volume.
• General illness (uncontrolled diabetes, immunosuppressants).
• Smoking and poor oral hygiene.

The most common complications after dental implant placement

Type of complication	When it usually occurs	Typical symptoms	What to do
Bleeding and excessive swelling	First 48 hours	Blood seeping, significant swelling of the face	apply ice, press down with sterile gauze; contact your doctor in case of heavy bleeding
Osseointegration failure / implant loosening	3rd–4th week	implant movement when touched, sensitivity when biting	See an implantologist immediately – the implant can often be fixed or replaced
Infection / peri-mucositis	Weeks 1–6	Red, swollen gums, purulent discharge, odour	Local or systemic antibiotics, professional cleaning
Peri-implantitis (bone inflammation)	Months to years after implantation	Receding gums, pain, looseness, X-ray bone loss	surgical cleaning, bone augmentation, sometimes implant removal
Broken screw or crown	at any time	sudden "crack", loose crown	Replacement of components, check bite load

Good to know: Loosening of the healing cap does not automatically mean implant failure. If you send the cap to us or bring it in for inspection, it can usually be reattached without long-term consequences.

Risk factors on the patient's side:

• Smoking more than 10 cigarettes a day.
• Inadequate oral hygiene and skipping dental hygiene.
• Careless cleaning with an electric toothbrush in the first month.
• Premature chewing of hard food or chewing gum.
• Bruxism (teeth grinding) without a protective splint.
• Uncontrolled diabetes, osteoporosis, treatment with corticosteroids.

How to reduce the risk of complications

1. Rest and eat soft foods for at least 14 days after implantation.
2. Rinse twice a day with the recommended antiseptic mouthwash and clean the surrounding teeth with a soft toothbrush.
3. Do not smoke for at least the duration of the healing process; ideally, quit completely.
4. Visit your dental hygienist every 6 months and do not skip check-up X-rays.
5. If you have diabetes, keep your blood sugar within the target range and inform your doctor about all medications.

When to see an implantologist immediately

• If you experience persistent pain or if the swelling does not improve after 72 hours.
• You have purulent discharge or an unpleasant odour from the area around the implant.
• The implant is loose or you can feel it moving.
• You have a fever above 38 °C.

A timely visit to the dentist's office often prevents complete implant failure and allows for timely treatment of bone inflammation.

Frequently asked questions

Does inflammation around a dental implant hurt?

Light pressure and sensitivity are normal, but sharp pain, throbbing or swelling indicate inflammation (peri-mucositis or peri-implantitis) and it is necessary to see a doctor.

How can I tell if a dental implant has become loose?

You will feel micro-movement when gently touching or biting, or possibly a metallic sound. A loose implant can also irritate the gums and cause inflammation.

Can a dental implant fail to take hold?

Yes, osseointegration failure affects 2-5% of implants. This is usually resolved by removal and reinsertion after bone healing.

What should you do if the healing cap comes loose?

Immediately store the healing cap in a clean tissue or salt-water solution and visit your implantologist as soon as possible; in most cases, it can be screwed back in.