Epidemiology:
- Implant failure rate: ~5–10% overall.
- More common in smokers, uncontrolled diabetics, patients with poor oral hygiene or bone quality.
Expected Prognosis:
- Early detection and intervention improve chances of saving the implant.
- In true rejection or severe bone loss, removal is often required.
Natural Progression:
- Initial symptoms: mild discomfort, gum swelling, mobility.
- Progresses to peri-implantitis, bone resorption, and eventual implant loosening if untreated.
Pathophysiology:
- “Rejection” is usually due to biological failure, not immune incompatibility.
- Causes:
- poor osseointegration, bacterial infection, mechanical overload, or systemic health factors affecting bone healing.
Possible Complications:
- Implant mobility and loss.
- Peri-implantitis and chronic infection.
- Bone resorption requiring grafting.
- Soft tissue recession and aesthetic issues.
Frequently Asked Questions
Can my body reject a dental implant?
Yes, though rare, implant rejection can occur due to allergies, poor healing, or infection.
What are the symptoms of implant failure?
Symptoms include persistent pain, swelling, gum recession around the implant, and mobility of the implant.
Why do some people experience implant rejection?
Factors like poor bone quality, smoking, or underlying health conditions (like diabetes) can increase the risk.
How can implant rejection be prevented?
Choosing a skilled dentist, following aftercare instructions, and maintaining good oral hygiene reduce the risk.
What happens if my implant fails?
The dentist may remove the implant, allow the area to heal, and consider alternative options like bone grafting before a second attempt.
