Dental Implant Success Criteria (Albrektsson / Misch Pisa Consensus)
Classify dental implants as Success, Satisfactory Survival, Compromised Survival, or Failure using the two most-cited frameworks — Albrektsson (1986) and Misch / ICOI Pisa Consensus (2008). Essential for implant maintenance and medicolegal documentation in Indian practice.
Implant Quality (Misch / ICOI Pisa)
SUCCESS
MBL 0.0 mm · PD 0.0 mm · 0 yr in service
Management
Misch Group I + Albrektsson — meets all success criteria. Standard 6-12 month implant maintenance.
Implant patients are recurring revenue — if you recall them
EasyClinic auto-schedules 6 / 12-month implant maintenance, attaches the last CBCT / PA, computes marginal bone loss delta, and sends WhatsApp recalls in regional languages. Indian implant practices using EasyClinic see a 30% lift in maintenance attendance.
Also Known As
The Two Frameworks Every Implantologist Should Know
Implant outcomes were historically dichotomised as “success” or “failure” using the Albrektsson 1986 criteria. The Misch / ICOI Pisa Consensus (2008) introduced a more clinically useful four-tier Implant Quality Scale: Success, Satisfactory Survival, Compromised Survival and Failure — recognising that many implants stay in function despite minor compromise.
Albrektsson 1986 Success Criteria (all must be met)
- No clinical mobility on individual testing
- No peri-implant radiolucency
- Vertical bone loss < 0.2 mm/year after first year of service
- No persistent pain, dysesthesia or infection
- ≥85% success at 5 years and ≥80% at 10 years (population-level)
Misch / Pisa Consensus 2008 — Four Categories
- Group I — Success: No pain, no mobility, MBL < 2 mm, no exudate.
- Group II — Satisfactory Survival: No pain or mobility, MBL 2-4 mm, no exudate. Continue with monitoring.
- Group III — Compromised Survival: May have sensitivity on function, PD > 7 mm, MBL > 4 mm, BOP, may have suppuration. Active treatment required.
- Group IV — Failure: Pain on function, mobility, MBL > 50% of implant length, uncontrolled exudate, peri-implant radiolucency. Remove.
Peri-Implant Diseases (2018 World Workshop)
The 2017–2018 World Workshop redefined peri-implant mucositis and peri-implantitis with clearer diagnostic thresholds. Peri-implantitis = BOP / suppuration + progressive bone loss beyond crestal remodelling. Indian Society of Oral Implantologists (ISOI) recommends 6-month maintenance for all implants and 3-month for compromised ones.
Frequently Asked Questions
▸How much bone loss is normal in the first year?
Up to 1.5–2.0 mm in year 1 (Albrektsson), then ≤ 0.2 mm/year. Anything exceeding this is considered pathological and warrants investigation (occlusion, hygiene, peri-implantitis).
▸Are platform-switched implants assessed the same way?
Yes, but baseline is measured from the implant–abutment junction (the platform), not the implant shoulder. Platform switching typically reduces crestal bone loss to <1 mm in the first year.
▸When should I remove a failing implant?
Misch Group IV indicators — clinical mobility, peri-implant radiolucency, severe MBL (>50% of implant length), uncontrolled suppuration with pain. Remove, debride, graft, re-evaluate at 4-6 months before re-implantation.
▸Is implant maintenance billable in Indian practice?
Yes. Indian implant maintenance fees typically range ₹500–1,500 per recall depending on city and complexity. EasyClinic prints maintenance bundles, generates GST invoices and sends WhatsApp reminders to keep patients on schedule.
▸Does CBCT replace periapical radiographs for monitoring?
No. Standard 6 / 12-month follow-up is with paralleling-technique PA. CBCT is reserved for suspected peri-implantitis, sinus involvement, or pre-surgical planning — to minimise cumulative radiation exposure per AERB / IDA guidance.
References
- Albrektsson T, Zarb G, Worthington P, Eriksson AR. The long-term efficacy of currently used dental implants. Int J Oral Maxillofac Implants 1986;1(1):11-25
- Misch CE et al. Implant Success, Survival, and Failure: The International Congress of Oral Implantologists (ICOI) Pisa Consensus Conference. Implant Dent 2008;17(1):5-15
- Berglundh T et al. Peri-implant diseases and conditions — Consensus report of the 2017 World Workshop. J Periodontol 2018;89(Suppl 1):S313-S318
- Indian Society of Oral Implantologists (ISOI) — Clinical Practice Recommendations
- Indian Dental Association (IDA) — Implantology guidelines
- Misch CE. Contemporary Implant Dentistry, 3rd Ed (MDS Prosthodontics standard, India)
Implant maintenance, organised across every recall
EasyClinic stores periapical / CBCT, peri-implant probing depths, BOP and bone-loss trend per implant — auto-classifies success vs survival vs failure, and prompts your maintenance protocol. ₹1,999/month.
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