Changes of clinical parameters at implants: A retrospective comparison of implants versus natural teeth over 5 years of supportive periodontal therapy. Issue 7 (15th April 2020)

• Record Type: Journal Article
• Authors: Sonnenschein, Sarah K.; Kohnen, Rebecca; Ciardo, Antonio; Ziegler, Philipp; Seide, Svenja; Kim, Ti‐Sun
• Is Part Of: Clinical oral implants research. Volume 31:Issue 7(2020)
• Page Start: 646
• Page End: 654
• Publication Date: 2020-04-15
• Subjects: implant maintenance -- individual periodontal risk assessment -- peri‐implant mucositis -- supportive periodontal therapy; Dental implants -- Research -- Periodicals; 617.69
• DOI: 10.1111/clr.13601
• Languages: English
• ISSNs: 0905-7161

Abstract

Abstract: Objectives: To compare clinical parameters of implants versus natural teeth over a period of 5 years during supportive periodontal therapy (SPT). Material and Methods: A total of 421 SPT patients were screened for implants (I) and corresponding control teeth (C). Data (patient level [P ]: sex, age, smoking status, systemic diseases, adherence, oral hygiene indices, mean probing depth [PD]P, bleeding on probing [BOP]P, periodontal risk profile; implant/control tooth level [I/C ]: PDI/C, BOPI/C ; site level at implants [SITE ]: position, dental arch, aspect, BOPSITE ) were assessed at the first SPT session where the implant was probed (T1) and 5 years later (T2). The influence of patient and implant/control‐related factors on PDI/C /BOPI/C was tested (linear mixed model) as well as the influence of site‐specific factors on the PDSITE change (multilevel regression). Results: A total of 70 patients (151 implants) were included. Mean PDI was 2.75 ± 0.85 mm (T1) and 2.87 ± 0.79 mm (T2). Mean PDC was 2.42 ± 0.66 mm (T1) and 2.49 ± 0.71 mm (T2). BOPI increased from 8.62 ± 15.01% (T1) to 24.06 ± 26.79% (T2) and BOPC from 9.97 ± 17.78% (T1) to 15.52 ± 22.69% (T2). The differences between implants and controls were significant for BOP ( p = .0032). At T2, BOPI/C was associated with periodontal risk ( p = .0351). The site‐specific analysis revealed an association of BOPSITE at T1 with the progression of PDSITE ( p = .0058). Conclusions: Probing depths of implants and controls seem to change similarly during SPT but retention of inflammation‐free conditions at implants appears to be more difficult compared to natural teeth. Patients with a high‐risk profile appear to have an increased susceptibility for BOP around implants, and BOP at implants seems to be a predictor for further PD increase.