Objective: To evaluate the antimicrobial and ant-adherent in vitro activity of tannins isolated from Anacardium occidentale Linn. (Cashew) on dental biofilm bacteria. Material and Methods: Streptococcus mutans ATCC 25175, Streptococcus mitis ATCC 903, Streptococcus sanguis ATCC 15300, Streptococcus oralis ATCC 10557, Streptococcus salivarius ATCC 7073 and Lactobacillus casei ATCC 9595 samples were used in this study. The tests were performed by the solid medium dilution method to determine the Minimum Inhibitory Concentration (MIC). The Minimum Inhibitory Concentration of Adherence (MICA) of bacteria to glass was determined in the presence of 5% sucrose. As a positive control, 0.12% chlorhexidine gluconate was used. The substances were tested at concentrations of 1:1 (pure solution) up to 1:512. Data were analyzed using descriptive statistics and the SPSS software, version 15.0. Results: Tannins isolated from Anacardium occidentale Linn. (cashew) formed inhibition halos ranging from 11 to 17 mm in diameter and were capable of inhibiting the growth of bacteria tested at concentrations of 1:4 (S mutans), 1:16 (S mitis), 1:8 (S sanguis), 1:4 (S oralis), 1:8 (S salivarius) and 1:2 (L casei). The tannin solution was effective in inhibiting the adherence of microorganisms to glass, and its effect on Streptococcus sanguis (1:512) and Lactobacillus casei (1:512) stood out, showing ant-adherent effect at all concentrations tested. Conclusion: Tannin isolates produced in vitro antimicrobial and ant-adherent activity on dental biofilm-forming bacteria and can be considered as an alternative treatment in infectious processes in clinical dentistry.

Background Peri‐implant mucositis is very common and, when left untreated, can progress to the more serious condition of peri‐implantitis. Therefore, early diagnosis, adequate treatment and, in particular, adherence to a peri‐implant supportive therapy are extremely important for the management of peri‐implant mucositis. Purpose Characterize the clinical conditions of peri‐implant tissues in patients diagnosed with peri‐implant mucositis after undergoing peri‐implant supportive therapy for 54 months. Materials and Methods Thirty‐eight patients (131 dental implants) who received peri‐implant supportive therapy, associated with oral hygiene instructions, were assessed at baseline and at 54 months for visible plaque and gingival bleeding indexes, probing depth and bleeding on probing. Data were statistically analyzed using the Chi‐square test and relative risk assessment using a significance level set at 5%. Results None of the independent variables evaluated (age, gender, smoking, type of prosthesis, time using the prosthesis, keratinized mucosa, phenotype peri‐implant, classification of visible plaque index and classification of gingival bleeding index) presented significant associations with “worsening” or “improvement” of clinical parameters. Conclusion The implementation of peri‐implant support therapy was not sufficient for the resolution of peri‐implant mucositis, although reductions in clinical parameters with respect to baseline were observed and maintained during follow‐up.

Purpose: To evaluate the impact of rehabilitation with implant-supported prostheses on the quality of life (QoL) of patients. Methods: The OHIP-14 questionnaire was applied to 114 patients and information regarding gender, age, type of prosthesis and time of use were obtained. To analyze whether there were any statistically significant differences between the mean scores of the seven parameters of the OHIP-14, the Mann-Whitney and Kruskal-Wallis test were used. All data were evaluated using a significance level of 5%. Results: Patients were predominantly female (78.9%) and single crowns users (41.2%). Patients reported a good QoL (3.07). Psychological discomfort and physical pain were the worst dimensions evaluated by the subjects. Results differed significantly (p<0.05) only for functional limitations and psychological discomfort in the different genders. Conclusions: Patients presented a high level of quality of life, regardless of age, duration of use and the type of prosthesis used. However, women presented more psychological distress and functional limitations than men.

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