Last reviewed: April 2026 · Based on current clinical protocols at DenCos, Hoofddorp
Dental implants are one of the most reliable treatments in modern dentistry, with 10-year survival rates of 88–95% reported across systematic reviews. A 2024 meta-analysis published in Clinical Oral Implants Research found that 4 out of 5 implants remain functional after 20 years. However, like any surgical procedure, implants carry risks — and understanding those risks helps you make an informed decision. At DenCos in Hoofddorp, Dr. Gang Wu (BIG 29918905102) — a registered periodontist and implantologist — uses 3D planning, strict protocols, and his periodontal expertise to minimise complications and maximise implant longevity.
This article explains the success rates, common and rare risks, factors that increase the chance of failure, and how DenCos reduces risk through integrated care.
What is the success rate of dental implants?
Multiple large-scale studies confirm that dental implants are a highly successful long-term treatment:
- 10-year survival: 88–95% across prospective and retrospective studies
- 20-year survival: approximately 80% (4 out of 5 implants) based on the 2024 meta-analysis
- Single-tooth implants tend to have slightly higher success rates than implants supporting bridges or full dentures
The American Dental Association considers dental implants a well-established, evidence-based treatment for tooth replacement. Success rates are highest when:
- The implant is placed by an experienced specialist (periodontist or oral surgeon)
- 3D imaging is used for precise planning
- The patient has adequate bone and healthy gums
- Proper aftercare and maintenance are followed
At DenCos, Dr. Gang Wu meets all of these criteria. His dual qualification as periodontist and implantologist means he understands both the surgical placement and the long-term tissue management required for implant success.
What are the risks and possible complications?
While serious complications are rare, it is important to understand the potential risks before undergoing implant surgery.
Early complications (during or shortly after surgery)
| Complication | Frequency | Description |
|---|---|---|
| Infection | 1–2% | Bacterial infection at the surgical site; usually resolved with antibiotics |
| Excessive bleeding | Rare | Typically controlled during surgery; blood thinners may increase risk |
| Nerve damage | < 1% | Numbness or tingling in the lip, chin, or tongue; usually temporary |
| Sinus perforation | Rare (upper jaw only) | Occurs if the implant penetrates the sinus floor; prevented by 3D planning |
| Failed osseointegration | 2–5% | The implant does not fuse with the bone and must be removed |
Late complications (months to years after placement)
| Complication | Frequency | Description |
|---|---|---|
| Peri-implant mucositis | 20–30% | Reversible inflammation of the gum around the implant; treated with professional cleaning |
| Peri-implantitis | 10–20% | Irreversible bone loss around the implant; requires surgical treatment |
| Mechanical failure | 1–3% | Crown fracture, screw loosening, or abutment failure; usually repairable |
| Bone loss | Variable | Progressive bone resorption around the implant; may lead to implant removal |
The Cleveland Clinic notes that most implant complications are manageable when detected early. This is why regular follow-up appointments are essential — and why having a periodontist manage your implant is an advantage.
What causes dental implant failure?
Implant failure falls into two categories:
Early failure (within 3–6 months)
The implant fails to osseointegrate — the bone does not fuse with the titanium surface. Causes include:
- Infection during the healing period
- Insufficient bone quality or quantity at the implant site
- Excessive loading — placing a crown too soon or heavy chewing forces during osseointegration
- Smoking — reduces blood supply and impairs bone healing
- Uncontrolled medical conditions — particularly diabetes
Late failure (after successful osseointegration)
The implant was initially successful but fails later due to:
- Peri-implantitis — the leading cause of late failure. A bacterial infection destroys the bone around the implant, similar to how periodontitis destroys bone around natural teeth.
- Occlusal overload — excessive bite force (e.g., from teeth grinding) causes bone breakdown
- Poor maintenance — inadequate oral hygiene allows bacterial accumulation
- Systemic health changes — new medications or conditions that affect bone or immune function
At DenCos, Dr. Wu's periodontist background is a critical advantage in preventing late failure. He monitors every implant patient for early signs of peri-implant disease at every maintenance visit — catching problems before they become serious.
How does smoking affect implant success?
Smoking is the single strongest modifiable risk factor for implant failure. Research confirms:
- Smokers have nearly 3 times the risk of implant failure compared to non-smokers
- Smoking reduces blood flow to the surgical site, impairing healing and osseointegration
- Smokers have significantly higher rates of peri-implantitis
- Even after successful initial healing, continued smoking increases long-term failure risk
At DenCos, Dr. Gang Wu discusses smoking status at the initial consultation. He strongly recommends:
- Quitting at least 2 weeks before surgery to improve blood flow
- Remaining smoke-free for at least 8 weeks after surgery to protect osseointegration
- Ideally quitting permanently — this provides the best long-term outcomes for both implants and periodontal health
What other factors increase the risk?
Beyond smoking, several factors can increase the likelihood of implant complications:
- Uncontrolled diabetes — high blood sugar impairs wound healing and immune function. Well-managed diabetes does not significantly increase risk.
- History of periodontitis — patients with a history of gum disease have a higher risk of peri-implantitis. At DenCos, Dr. Wu ensures periodontal disease is fully treated before implant placement.
- Insufficient bone — low bone volume may lead to poor implant stability. Bone grafting can address this before or during implant placement.
- Teeth grinding (bruxism) — excessive force can overload implants. A night guard is recommended for patients who clench or grind.
- Certain medications — bisphosphonates (for osteoporosis), immunosuppressants, and some cancer treatments can affect bone healing. Dr. Wu reviews your full medication list before surgery.
- Poor oral hygiene — bacterial accumulation around the implant is the primary cause of peri-implantitis.
How does DenCos minimise implant risk?
The DenCos approach to implant safety is built on three pillars:
1. Precise 3D planning
Every implant at DenCos is planned using CBCT (cone beam computed tomography) scans. This 3D imaging reveals bone density, nerve positions, sinus proximity, and the exact anatomy of the implant site — allowing Dr. Wu to place the implant with millimetre precision and avoid critical structures.
2. Periodontal expertise
Dr. Wu's dual qualification as periodontist and implantologist is rare and valuable. Most implants that fail late do so because of peri-implantitis — essentially gum disease around the implant. As a periodontist, Dr. Wu is uniquely trained to prevent, detect, and treat this condition. Patients with a history of periodontitis or gum recession receive stabilisation treatment before implant placement.
3. Structured maintenance programme
Every implant patient at DenCos enters a long-term maintenance programme:
- Professional cleanings every 3–6 months (frequency based on risk profile)
- Peri-implant probing and X-rays at regular intervals
- Personalised home care instructions updated at each visit
- Early intervention at the first sign of mucositis — before it progresses to peri-implantitis
This proactive approach is why DenCos maintains high implant success rates for patients from Hoofddorp, Haarlemmermeer, Haarlem, Amsterdam, Amstelveen, and surrounding areas.
What happens if an implant fails?
If an implant fails, the situation is manageable:
- Removal — the failed implant is removed under local anaesthesia. This is typically a simpler procedure than the original placement.
- Healing — the bone is allowed to heal for 2–4 months.
- Bone assessment — Dr. Wu evaluates whether the bone has recovered sufficiently or whether bone grafting is needed.
- Re-implantation — a new implant can often be placed in the same location. Success rates for replacement implants are comparable to first-time placements.
At DenCos, Dr. Wu handles the entire process from removal to replacement, ensuring continuity and optimal outcomes.
Next step
Considering an implant and want to understand your personal risk profile? A thorough assessment is the best starting point.
Book an implant consultation at DenCos in Hoofddorp, or call us at 023-792 0463. Dr. Gang Wu will evaluate your bone, gums, medical history, and risk factors, and provide honest guidance on whether an implant is the right choice for you. Appointments available Tuesday through Thursday until 18:30.