Vagia P, Papalou I, Burgy A, Tenenbaum H, Huck O, Davideau J.-L. Association between periodontitis treatment outcomes and peri-implantitis: a long-term retrospective cohort study. Clin Oral Implants Res 2021; DOI: 10.1111/clr.13741. Online ahead of print.

The severity of the periodontal status appeared to be a reliable indicator of patient susceptibility to peri-implantitis.

This retrospective study evaluated the association of periodontal treatment outcomes and the prevalence of peri-implant diseases around tissue-level implants. Eighty-six patients with 260 tissue-level Straumann implants attending supporting periodontal and implant therapy for more than three years were evaluated. Clinical and radiographic periodontal and implant data were recorded at initial examination, before implant placement and at final re-examination. The mean implant follow-up per patient was 9.4 years and 38% of patients had implants for at least ten years. Two implants were lost due to peri-implantitis. Initial diagnosis of severe periodontitis was associated to peri-implantitis incidence. Periodontal conditions before implant placement are a risk indicator for peri-implantitis incidence.