Hyperlipidemic patients showed higher values of periodontal parameters compared with the statin-treated and control groups. Lower PI in the group S may indicate the anti-inflammatory effect of statin.

Colonization of periodontal pathogens on the surgical sites is one of the primary reasons for the failure of regenerative periodontal therapies. Bioactive glasses (BGs) owing to their favorable structural and antimicrobial properties have been proposed as promising materials for the reconstruction of periodontal and peri-implant bone defects. This study aimed to investigate the antibiofilm activity of zinc-doped BG (Zn/BG) compared with 45S5 Bioglass® (BG®) on putative periodontal pathogens. In this in vitro experimental study, the nano BG doped with 5-mol% zinc and BG® were synthesized by sol-gel method. Mono-species biofilms of Aggregatibacter actinomycetemcomitans (A. a), Porphyromonas gingivalis (P. g), and Prevotella intermedia (P. i)were prepared separately in a well-containing microplate. After 48 hours of exposure to generated materials at 37°C, the anti-biofilm potential of the samples was studied by measuring the optical density (OD) at 570nm wavelengths with a microplate reader. Two-way ANOVA then analyzed the results. Both Zn/BG and BG® significantly reduced the biofilm formation ability of all examined strains after 48 hours of incubation (P=0.0001). Moreover, the anti-biofilm activity of Zn/BG was significantly stronger than BG® (P=0.0001), which resulted in the formation of a weak biofilm (OD<1) compared with a moderately adhered biofilm observed with BG® (1<OD<2). Zn/BG showed a significant inhibitory effect on the biofilm formation of all examined periodontal pathogens. Given the enhanced regenerative and anti-biofilm properties of this novel biomaterial, further investigations are required for its implementation in clinical situations.

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Supplier relationship management is an important research field in Supply Chain Management. This paper aims to study the existing portfolio models for supplier relationship management then apply Svensson(2000)'s model to classify buyer-supplier relationship in an Iranian automotive industry supply chain. Finally present a framework for supplier relationship management. Data for this study was collected through two surveys. The current study analyzes supplier relationship management in two phases: firstly, based on Svensson's model the relationship between the buyer and its suppliers was classified. Secondly, based on the strategic roadmap of the automotive manufacturer, the strategic goals were defined, and trough a web survey the experts' opinions about the relation between strategic goals and current relationship among manufacturer and its suppliers were gathered. Finally, based on obtained result in two previous phases, a framework for supplier relationship segmentation and promotion was supposed.

Patients with hypertriglyceridemia had worse periodontal status than healthy controls. Patients with hypertriglyceridemia who were taking gemfibrozil did not show significant differences in CAL and PD compared with untreated patients with hypertriglyceridemia.

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Background and Aim: Oral hygiene instructions are routinely provided at schools by health mentors and dentists. Recently, oral hygiene instruction by peers has gained popularity. This study aimed to compare the effect of oral hygiene instruction by dentists and peers on the level of knowledge of twelve-year old children. Materials and Methods: In this interventional randomized clinical trial, four schools were randomly selected. The level of oral health knowledge of students was assessed by a pretest. Oral hygiene instructions were then provided by dentists in control schools and by peer mentors in test schools. Knowledge of students about oral health was evaluated in the two groups immediately and after 1 month post instruction. The mean test scores were analyzed using SPSS version 20 and compared between the groups using two-way and repeated measures ANOVA. Result: Oral hygiene instruction enhanced the overall knowledge of students about oral health immediately and at one month after the instruction compared with baseline in both groups (P<0.05). The overall knowledge score of students in the test group was higher than that of the control group immediately and at 1 month after the instruction (P<0.05). Conclusion:It appears that oral hygiene instruction by peer mentors can effectively increase knowledge acquisition with regard to oral health-related topics. Thus, peer mentoring in health-related topics is recommended as a practical and cost-effective approach. Considering the different pattern of learning in boys, repetition and reinforcement of instruction can promote their knowledge level in long-term.