marginal bone

Clinical Oral Implants Research

Objective This treatment concept paper introduces a risk assessment tool, the Implant Disease Risk Assessment, (IDRA) which estimates the risk for a patient to develop peri‐implantitis. Materials and methods The functional risk assessment diagram was constructed incorporating eight parameters, each with documented evidence for an association with peri‐implantitis. Results The eight vectors of the diagram include (1) assessment of a history of periodontitis (2) percentage of sites with bleeding on probing (BOP) (3) number of teeth/implants with probing depths (PD) ≥5 mm (4) the ratio of periodontal bone loss (evaluated from a radiograph) divided by the patient's age (5) periodontitis susceptibility as described by the staging and grading categories from the 2017 World Workshop on the Classification of Periodontal and Peri‐implant Diseases (Journal of Periodontology, 89 Suppl 1, S159‐S172, 2018) (6) the frequency/compliance with supportive periodontal therapy (7) the distance in mm from the restorative margin of the implant‐supported prosthesis to the marginal bone crest and (8) prosthesis‐related factors including cleanability and fit of the implant‐supported prosthesis. Conclusion The combination of these factors in a risk assessment tool, IDRA, may be useful in identifying individuals at risk for development of peri‐implantitis.

Implant Disease Risk Assessment IDRA–a tool for preventing peri‐implant disease