Dental implants have revolutionized oral rehabilitation, offering patients a durable solution for missing teeth. Despite their high success and survival rates, they are also susceptible to failure and complications, just like natural teeth. Over time, implants and implant supported prosthesis may require substantial periodontal and prosthodontic maintenance.
WHAT ARE PERI-IMPLANT DISEASES?
They are diseases concerning the soft and hard tissues surrounding the dental implant.
- Peri-implant mucositis is a reversible inflammatory condition confined to the soft tissues surrounding the implant.
- Peri-implantitis is a progressive inflammatory disease that involves both soft tissues and supporting bone, often leading to implant failure if left untreated.
Parallels can be drawn between peri-implant diseases and periodontal diseases highlighting their similarities in progression and aetiology.
Gingivitis is the inflammation of the soft tissue surrounding the tooth, if left untreated, progresses to involve the surrounding supporting tissues and is called Periodontitis. Untreated periodontitis eventually leads to the loss of the natural tooth.
In a similar vein, Peri-implant mucositis, which involves the soft tissues around the dental implant, can progress to involve the surrounding bone and is called Peri-implantitis. Untreated peri-implantitis eventually leads to the loss of the dental implant.
| Peri-implant mucositis | Gingivitis | Peri-implantitis | Periodontitis | |
| Tissues affected | Peri-implant soft tissue | Gingival tissue | Peri-implant soft tissue and supporting bone | Gingival tissues and supporting structures like PDL and bone |
| Nature of inflammation | Reversible | Reversible | Progressive and irreversible | Progressive and irreversible |
| Clinical features | Probing depth <5mm, bleeding on probing, redness and swelling | Probing depth <5mm, bleeding on probing, redness and swelling | Probing depth ≥5mm (pocket formation), bone loss, bleeding on probing | Probing depth ≥5mm (pocket formation), bone loss, bleeding on probing |
| Primary cause | Biofilm accumulation | Biofilm accumulation | Biofilm + host response | Biofilm + host response |
UNDERSTANDING THE RISK FACTORS
- Poor oral hygiene – improper plaque control and lack of compliance
- Smoking – decreases blood supply, impairs healing and immune response
- Systemic conditions – uncontrolled diabetes, cardiovascular diseases, osteoporosis, immunosuppression, etc.
- Medication – drug therapies that inhibit bone modulation
- History of periodontitis increases the risk of peri-implantitis
- Biomechanical overload – excessive forces on the implant can cause microfractures and loss of bone support around the neck of the implant.
- This can be further compromised by factors like:
- poor bone quality
- incorrect implant position and/or number
- parafunctional habits
- improper fit of crown to implant
- Prosthetic design – ill-fitting or hard to clean prosthesis encourages plaque accumulation
PREVENTION IS KEY
Prevention requires meticulous maintenance and patient education.
- Effective oral hygiene by using proper brushing techniques, flossing and use of interdental aids designed for implants.
- Routine check-ups, professional cleanings and follow-ups to detect early signs of the disease.
- Ensuring that the prosthetic components are accessible for hygiene and do not exert undue stress on the implant.
TREATMENT MODALITIES TAILORED FOR YOU
Treatment protocol is determined by the severity of the disease
- Non-surgical therapy for plaque removal by scaling and mechanical debridement
- Anti-microbial/anti-septic agents like chlorhexidine rinses or localised antibiotic application
- Surgical intervention, like resective or regenerative surgery is done in case of significant bone loss
- Implantoplasty can be done to smoothen the implant surface and improve biofilm control
CONCLUSION
Peri-implant diseases, much like periodontal diseases, emphasize the importance of prevention and early intervention.
Proactive prevention can help avoid common complications and is essential for both patients and dental professionals to effectively manage these conditions, ensuring the longevity of the dental implants and overall oral health.
So, what are your thoughts? Are dental implants the ultimate long-term fix?