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. 2022 Dec;49(12):1346-1356.
doi: 10.1111/jcpe.13716. Epub 2022 Aug 25.

Clinical outcomes of dental implants in patients with and without history of periodontitis: A 20-year prospective study

Andrea Roccuzzo  1   2   3 , Jean-Claude Imber  1 , Crystal Marruganti  4   5   6 , Giovanni E Salvi  1 , Guglielmo Ramieri  7 , Mario Roccuzzo  7   8   9
Affiliations

Clinical outcomes of dental implants in patients with and without history of periodontitis: A 20-year prospective study

Andrea Roccuzzo et al. J Clin Periodontol. 2022 Dec.

Abstract

Aim: To present the 20-year clinical outcomes of tissue-level implants in partially edentulous patients previously treated for periodontitis and in periodontally healthy patients (PHP).

Material and methods: The original population consisted of 149 partially edentulous patients consecutively enrolled in a private specialist practice and divided into three groups: PHP, moderately periodontally compromised patients (mPCP) and severely PCP (sPCP). After successful completion of periodontal/implant therapy, patients were enrolled in an individualized supportive periodontal care (SPC) programme.

Results: Eighty-four patients rehabilitated with 172 implants reached the 20-year examination. During the observation time, 12 implants were removed (i.e., 11 due to biological complications and 1 due to implant fracture), leading to an overall implant survival rate of 93% (i.e., 94.9% for PHP, 91.8% for mPCP and 93.1% for sPCP [p = .29]). At 20 years, PCP compliant with SPC did not present with significantly higher odds of implant loss compared with PHP compliant with SPC (p > .05). Conversely, PCP not compliant with SPC experienced implant loss with odds ratio of 14.59 (1.30-164.29, p = .03).

Conclusions: Tissue-level implants, placed after comprehensive periodontal therapy and SPC, yield favourable long-term results. However, patients with a history of periodontitis and non-compliant with SPC are at higher risk of biological complications and implant loss.

Keywords: dental implants; peri-implantitis; periodontitis; supportive periodontal therapy; tooth loss.

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Conflict of interest statement

The authors declare no potential conflict of interest.

Figures

FIGURE 1
FIGURE 1
Clinical and radiographic images of an implant placed in April 2001 in an “adherent patient” (a,b); in May 2017, the site exhibited clinical signs of inflammation, bleeding on probing, increased probing depth and radiographic bone loss (c,d); clinical and radiographic images at the 20‐year follow‐up, following surgical treatment of the biological complication (e‐f)
See this image and copyright information in PMC

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