Introduction: Filler size affects how the material is coated and finished, while filler stacking affects how strong the material is, how flexible it is, how resistant it is to wear, and how much it shrinks when it polymerizes. The purpose of this research was to compare micro-hybrid, nano-composite, and bulk-fill composites with respect to their compressive strength, diametric tensile strength, and flexural strength. Materials and methods: To organize the samples according to International Organization for Standardization (ISO) 4049 and American Dental Association (ADA) detail number 27, we used a custom-made Teflon mold. A total of 45 samples were used, with 15 samples in each group. The sample was mounted on a state-of-the-art general testing machine to determine its compressive strength and polar rigidity. The 3-point bowing test was used to determine flexural strength. A one-way analysis of variance (ANOVA) was used for quantitative analysis, followed by a post hoc test with a significance level of P < 0.05. Results: The Tetric N Ceram Bulk Fill, the Filtek Z350 XT nanocomposite, and the T-Econom micro-hybrid composite all had different levels of flexural and compressive strength. This difference was statistically significant. Nanocomposites have superior compressive and flexural strengths to their counterparts analyzed in the present study. Conclusion: Nano-composite combines the properties of being strong and looking good. It can be used in both front and back restorations that need to be strong enough to withstand the forces of chewing.
Objective: Even when endodontic procedures are performed with the utmost care, reinfection can occur. One possible explanation is that contaminated gutta-percha cones were used in the root canals. The study's goal is to assess the antimicrobial activity and efficacy of Neem, Turmeric, and Calotropis Procera in disinfecting gutta percha cones prior to obturation. Materials and Methods: 80 Gutta percha (GP) cones were contaminated with 0.5ml Ferlands standard Enterococcus Faecalis for 10 minutes.20 cones each were treated up to 5 minutes in their prepared neem, turmeric, calotropis and sodium hypochlorite solutions. Then, they placed in BHI broth and vertex is done for 1 minute. One loopful of broth was stroked on 20 blood agar plates of 5 each neem, turmeric, calotropis and sodium hypochlorite. The plates were then incubated for 24 hours aerobically at 37°C and the colony forming units were counted with a digital colony counter. Results: Mean colony forming units were compared in all the groups and there was a statistically significant difference present among the groups (p<0.01). Sodium Hypochlorite (NaOCL)as control group showed average of 5 colony forming units(CFU). Turmeric had the least average of 55 CFU and was the most effective of the experimental groups. Neem and Calotropis had the higher average of 130 CFU and 200 CFU respectively, making it the least effective of the solutions tested. Conclusion : All of the herbal solutions tested positive for disinfection of GP points. When compared to Neem and Calotropis, Turmeric was the most effective and has superior antibacterial activity.
A successful outcome of endodontic therapy can be achieved by a thorough knowledge of root canal morphology and its variations. The mandibular canine commonly presents with a single root and a single canal. A few may present with two canals in a single root and even rarer are those with two distinct roots and root canals. The present manuscript describes a case of an atypical bi-rooted mandibular canine. Careful examination of preoperative radiographs revealed a mandibular canine with two distinct roots and two canals. The access cavity was prepared, the working length was determined and the canal was prepared with rotary instrumentation with copious irrigation of sodium hypochlorite and EDTA. This was followed by obturation and post-operative evaluation. Careful assessment of root canal morphology should be done in every case for a successful outcome and to avoid any mishaps.
Periapical pathosis is considered as a persistent microbial infection throughout the treatment period of root canal procedures. Recently the prevalence of endodontic failures is huge and this primarily accounts for the periapical pathogens; mainly Enterococcus faecalis and Candida albicans. Thus, with the advent of newer materials; identification of the most appropriate sealing material with highest antimicrobial efficacy is essential for endodontic success. To evaluate and compare the antimicrobial efficacy of MTA Angelus, Biodentine and Theracal LC against Enterococcus faecalis and Candida albicans. An in-vitro study was conducted using three silicate-based cements; MTA Angelus, Biodentine and Theracal LC. Their antimicrobial efficacy was evaluated using Tube dilution method and their Minimum inhibitory concentration (MIC) and Bacterial counts (CFU’s) were assessed and compared. Statistical analysis was done using Paired t-test and ANOVA at 95% confidence interval (p value <0.05).The MIC was highest and CFU’s were lowest with Biodentine in comparison with other two materials.There were statistically significant differences noted between Biodentine and MTA angelus: Our study results conclude that Biodentine was found to be more anti-bacterial as compared to MTA angelus and theracal LC.
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