Peri-implantitis: Surgical Therapy

Dental surgery/oral and maxillofacial surgery.

Therapeutic Objectives: Reduction of peri-implant (“around the implant”) pockets, improvement of cleanability, prevention of explantation (surgical removal of the implant).

  • Exposure of the defect, subsequently.
    • Mechanical debridement (wound toilet, i.e., removal of necrotic (dead) tissue).
      • Cleaning of implant surfaces with special curettes and brushes (plastic, titanium).
    • Decontamination (removal of one or more hazardous substances) of the surfaces.
      • With citric acid, etc., then rinsing with physiological saline solution.
      • By laser systems with wavelengths that are minimally absorbed by titanium (caveat: heating).
        • CO2 laser
        • Diode laser
        • Er:YAG laser
        • Er,Cr:YSSG laser
      • Photodynamic chemotherapy (PACT) – photochemical interactions between low-intensity laser light and a photosensitizer (photosensitive active substance) with the aim of inactivating germs.
    • Implantoplasty – removal of the exposed threads, smoothing and polishing of the supracrestal (“located above the bone seam”) exposed textured (rough) implant portion, aesthetically unfavorable apical displacement for pocket reduction.
    • Alternative: augmentation procedure for defect filling, i.e. surgical reconstruction of lost bone substance in the maxilla or mandible.
  • Explantation (surgical removal of the implant) – in case of implant mobility or severe defects to prevent further bone loss.
  • Postoperative aftercare