Prevalence of peri-implant diseases

Peri-implant complications follow a well-established clinical pattern, with alarming incidence rates.

Mucositis

  • First stage of peri-implant diseases
  • Affects up to 50 % of implants
  • Reversible, but a gateway to severe complications

Peri-implantitis

  • Occurs in 40 % of mucositis cases, i.e. around 20 % of implants in total
  • Associated with progressive and irreversible bone loss

Loss of osseointegration

  • Mobility and implant failure
  • Affects 50 % of peri-implantitis cases, i.e. around 10 % of implants in total

Mucositis

Mucositis is the implant equivalent of gingivitis around a tooth. The aetiology of this inflammatory condition is inadequate oral hygiene, combined with the nature of the biomaterials in contact with the gum. Just as periodontitis follows uncontrolled gingivitis, peri-implantitis occurs when mucositis is not intercepted.

Mucositis, which affects almost 50% of implants, is the first warning sign before an inflammatory reaction occurs in all peri-implant tissues.

Clinical features:

  • Bleeding on probing
  • Gum inflammation and swelling
  • No radiographic bone loss

Prevalence rate:

  • 50 % of implants after 5 years

Peri-implantitis

Peri-implantitis is the implant equivalent of periodontal disease on natural teeth: an aggressive inflammatory and infectious condition that causes progressive loss of the implant’s supporting tissues.

Clinical features:

  • Probing depth ≥ 5 mm
  • Bleeding and/or suppuration on probing
  • Bone loss ≥ 2mm

Prevalence rate:

  • 40 % of mucositis cases

Loss of osseointegration

Loss of osseointegration marks the ultimate stage of implant complications: mobility and pain make implant removal inevitable, equivalent to the avulsion of a natural tooth affected by severe periodontitis.

Clinical features:

  • Implant mobility
  • Pain
  • Late-stage of bone loss

Prevalence rate:

  • 50 % des cas de péri-implantite