The correlation between history of periodontitis according to staging and grading and the prevalence/severity of peri‐implantitis in patients enrolled in maintenance therapy

Abstract

Background:The aim of this study was to determine if a previous history of periodontitis according to the preset definitions of the 2017 World Workshop is correlated with increased implant failure, and occurrence and severity of periimplantitis (PI). Methods:A retrospective analysis of patients with a history of periodontitis who received nonsurgical and, if indicated, surgical corrective therapy prior to implant placement was performed. Periodontitis stage and grade were determined for each included patient based on data from the time of initiation of active periodontal therapy. Cox Proportional Hazard Frailty models were built to analyze the correlation between stage and grade of periodontitis at baseline with implant failure, as well as occurrence and severity of PI.Results: Ninety-nine patients with a history of periodontitis receiving 221 implants were followed for a mean duration of 10.6 ± 4.5 years after implant placement. Six implants (2.7%) failed and a higher rate of implant failure due to PI was found for Grade C patients (P < 0.05), whereas only an increased trend was seen for Stages III and IV compared with I and II. Grading significantly influenced the risk of marginal bone loss (MBL) >25% of the implant length (P = 0.022) in PI-affected implants. However, a direct correlation between higher-level stage and grade and PI prevalence was not recorded. Conclusion:No statistically significant association between periodontitis stage or grade and the prevalence of PI was found. However, when PI was diagnosed, there was a relationship between periodontitis grade and severity of PI or the occurrence of implant failure.

Interproximal implant thread exposure after initial bone remodeling as a risk indicator for peri‐implantitis

“…Interestingly, severity of periodontitis was not a significant factor for incidence of PI, which is in accord with our group's earlier findings in another study population among patients at the same institution, where only periodontitis Grade C was associated with incident PI 15 . This finding is also in line with the results of the meta‐analysis published in 2016, which obviously could not have applied the 2017 World Workshop case definitions for either disease 42 .…”

Comparison of Two Risk Assessment Scores in Predicting Peri-Implantitis Occurrence during Implant Maintenance in Patients Treated for Periodontal Diseases: A Long-Term Retrospective Study

“…The prevention of peri-implantitis is considered as a growing issue regarding peri-implantitis occurrence, with functional and aesthetic consequences [ 1 , 2 , 3 ]. Peri-implantitis occurrence and severity are influenced by risk-factor distributions [ 1 , 4 , 5 , 6 ]. These risk factors include not only implant and prosthesis characteristics but also systemic and behavioral factors as well as those related to the periodontal environment [ 2 ].…”

“…Complex interactions between risk factors have been shown to amplify or reduce their prognosis value as demonstrated by the interaction between the type of implants (bone-level implants) and the over-contoured restoration [ 7 , 8 ]. The variability in diagnosis and the prognosis value of each risk factor, considered separately, suggest the importance of developing new clinical prognosis tools for day-to-day clinical practice [ 5 , 9 , 10 , 11 , 12 ].…”

Correlation Analysis of miR-1246 Expression in Saliva of Patients with Chronic Periodontitis and Periodontal Indexes, Inflammatory Cytokines, and Protease Molecules

“…Gingival inflammation and bleeding on probing, also pus may be present, periodontal pocket depth ≤6 mm, X-ray showing alveolar bone resorption more than 1/3 of the root length but not more than 1/2 of the root length, and the teeth having mild loosening were considered moderate according to severity grading. More pronounced inflammation or periodontal abscess, periodontal pocket >6 mm, X-ray showing alveolar bone resorption more than 1/2 of the root length, and the tooth being mostly loose were considered severe according to severity grading [ 10 , 11 ].…”