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Purpose: To evaluate the effect of basic periodontal treatment on clinical periodontal parameters associated with abutment teeth of patients with mandibular Kennedy class I removable partial dentures (RPD) 18 months after treatment. Materials and Methods: Thirty patients with periodontal disease were treated and evaluated according to the following periodontal parameters: visible plaque index (VPI), bleeding on probing (BOP), probing depth (PD), gingival recession (GR), clinical attachment loss (CAL), and keratinized mucosa (KM). These parameters were compared between abutment teeth with direct and indirect retainers at baseline, and after 6 and 18 months. Data were analyzed by Friedman Test and Wilcoxon Test for all variables. Results: Most patients (n = 26; 86.7%) included in the study were female and had a mean age of 61 years (±7.54). Results showed that VPI and BOP decreased over time, and that VPI values were higher in abutment teeth with direct retainers (p = 0.001). There was a reduction in PD after 6 months, which was maintained up to 18 months. In general, abutment teeth with direct retainers had significantly higher values for PD, GR, and CAL (p = 0.029). Data also indicated that the parameters for VPI, BOP, and PD improved; however, abutment teeth with direct retainers presented smaller improvements, compared with abutment teeth with indirect retainers, which presented significant improvements for almost all variables. Conclusion: Periodontal treatment and oral hygiene care of patients were adequate for maintenance of adequate periodontal conditions, regardless of the use of prostheses. [ABSTRACT FROM AUTHOR]

Objective To evaluate the frequency of peri-implant diseases and factors associated with its occurrence. Material and methods One hundred and fifty-five patients with dental implants were evaluated in this cross-sectional study. Dental implants were clinically and radiographically evaluated to diagnose their peri-implant condition, according to Mombelli (Proceedings of the 3rd European Workshop on Periodontology, 1999, Quintessence, London). Associations between peri-implant diseases and independent variables (socioeconomic, demographic and periodontal characteristics) were evaluated through bivariate analysis with chi-squared and Fisher's exact tests, as well as by multiple logistic regression. The significance level was set at 5%. Results The frequencies of the peri-implant diseases, mucositis and peri-implantitis, in individuals were 54% and 28% ( CI, 95%), respectively. The sample was almost exclusively of patients with untreated periodontal disease (93%). Bivariate analysis showed that these peri-implant diseases were associated with male patients (prevalence ratio [ PR], 3.38), medication use ( PR, 2.94), systemic diseases ( PR, 2.25), number of implants ( PR, 2.53), visible plaque index ( PR, 2.49) and gingival index ( PR, 2.70). Multiple logistic regression analysis showed that medication use (prevalence ratio adjusted [ PRadj], 1.23; 95% CI: 1.04-1.46; P = 0.017), having two or more implants ( PRadj, 1.22; 95% CI: 1.02-1.46; P = 0.029) and gingival bleeding index > 10% ( PRadj, 1.22; 95% CI: 1.03-1.44; P = 0.022) were associated with the presence of peri-implant disease. Conclusion Peri-implant diseases were diagnosed in 54% of patients; gingival index of greater than 10%, having more than two implants and use of medication were associated with the frequency of peri-implant disease. [ABSTRACT FROM AUTHOR]

ABSTRACT Objective Material and Methods Results Conclusions To evaluate whether a two‐piece abutment is equivalent to a one‐piece in peri‐implant esthetics, patients' satisfaction, and oral health–related quality of life (OHRQOL) for implant‐supported anterior single crown placement.Thirty implants were allocated sequentially: 15 in the one‐piece abutment group (OP) and 15 in the two‐piece abutment group (TP). Peri‐implant esthetics were evaluated by the pink esthetic score (PES) at temporary crown insertion (T1), after tissue conditioning (T2), and at 30 days after the final crown insertion (T3). OHRQOL was measured using the OHIP‐14 and satisfaction was evaluated using the visual analog scale (VAS) at baseline, T1, and T3. Treatment was considered equivalent if the 95% coefficient interval (CI) for mean difference in PES was between −1.5 and +1.5 points. Statistical analysis was performed using Mann–Whitney, SPANOVA, and Student's t‐test, with Sidak's posttest, adopting p < 0.05.No differences were found between the groups for any variable and during follow‐up. A significant increase in OHRQOL and satisfaction was observed at T3, when compared to baseline (p < 0.05) for both groups. Significant improvements in peri‐implant esthetics were also observed throughout the treatment, particularly after tissue conditioning (p < 0.05). Primary and secondary outcomes were evaluated for equivalence, and both abutment types were considered equivalent following the insertion of the temporary crowns.Two‐piece abutment was equivalent to one‐piece abutment for peri‐implant esthetics, quality of life, or the satisfaction of patients rehabilitated with metal‐free single crowns. Tissue conditioning and final crown insertion appear to play a role in improving these outcomes. [ABSTRACT FROM AUTHOR]