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Objective: The present study aimed to evaluate the local effect of antimicrobial photodynamic therapy (aPDT) as adjunctive treatment for Grade C periodontitis in molars teeth., Method and Materials: Thirty-eight molar teeth from 11 patients were included in this split-mouth randomized clinical trial. The teeth were randomly divided into two groups (n = 19 each) that were submitted to conventional scaling and root planing in addition to aPDT (test group) and to scaling and root planing in addition to aPDT simulation (control group). The following periodontal parameters were obtained prior to treatment (baseline) and at 3 months after the intervention: bleeding on probing, probing depth, gingival recession, clinical attachment level, and furcation level. A 5% significance level was adopted in the statistical analysis., Results: Both groups exhibited improvement in the clinical parameters (P < .001). However, the reductions in bleeding on probing and probing depth were greater in the test group (P < .001). There were no significant differences in the other clinical parameters between groups (P ≥ .130)., Conclusions: Molar teeth treated with aPDT and scaling and root planing showed superior clinical improvement compared to those submitted only to scaling and root planing. aPDT may be used as adjunctive treatment for Grade C periodontitis affecting molar teeth since it seems to improve the clinical response to conventional debridement.

The scope of this cross-sectional study was to evaluate the prevalence and the associated factors of the recommendation of dental extraction in the adult Kiriri Indigenous population of northeastern Brazil. A total of 225 natives (≥19 years) were evaluated. The extraction criteria were teeth with clinical attachment loss ≥50% in at least 3 sites, and residual roots. Statistical models were used to evaluate associations between the need for dental extraction and selected variables. The percentage of teeth recommended for dental extraction was 4.98%, characterizing a mean of 1.24 tooth per individual. A regression analysis showed that age ≥35 years (OR=2.24, 95%CI: 1.13-4.43, p=0.02), income

Purpose: The present study aimed to identify the systemic risk indicators associated with peri-implant mucositis and peri-implantitis in individuals with implant-supported fixed prostheses., Materials and Methods: In this cross-sectional study, clinical evaluations of periodontal and peri-implant conditions were performed by a single examiner in a sample of 71 volunteers with 360 implants. Peri-implant mucositis was defined as the occurrence of bleeding on probing in association with redness and swelling or suppuration, without bone loss. Peri-implantitis was defined based on a radiograph of bone loss ≥ 3 mm and/or a probing depth ≥ 6 mm with bleeding and/or suppuration on probing. The systemic factors evaluated were obesity, hormone replacement therapy, osteopaenia and osteoporosis, high blood pressure and hypercholesterolaemia. Logistic models were applied to assess the associations between peri-implant diseases and systemic factors., Results: Mucositis and peri-implantitis were found in 83.1% and 16.9% of the individuals, respectively. The regression analysis showed that obesity (prevalence ratio = 5.23; 95% confidence interval, 1.91 to 96.83; P = 0.01) and high systolic blood pressure (prevalence ratio = 4.23; 95% confidence interval, 1.66 to 12.87; P = 0.03) were associated with peri-implantitis at the individual and implant levels, respectively. No systemic factor was associated with peri-implant mucositis (P ≥ 0.06)., Conclusion: Obesity and high systolic blood pressure were associated with peri-implantitis, whereas no systemic factor was associated with peri-implant mucositis. Future prospective studies are required to confirm these as true risk factors. Patients with obesity and/or high systolic blood pressure could be informed of the likely association with peri-implantitis, preferably before implant placement., Competing Interests: Conflict-of-interest statement: The authors have no commercial relationships to declare.