Lundewolff5978
PRF in combination with bovine bone graft was more effective in the treatment of intrabony defects.
Making an impression represents a crucial step in fabrication of a prosthesis. Elastomers are the most commonly used materials for precise and accurate recording and reproduction of tooth morphology and surrounding soft tissue.
The aim of this study was to compare and evaluate the linear dimensional accuracy of three elastomeric impression materials addition silicone, condensation silicone, and polyether at different time intervals up to 15 days using a vision inspection system.
Dimensional accuracy of impression materials was measured at certain designated time periods using stainless steel die. The impressions of die were made using one representative material of each type of elastomeric impression material. The die along with the impression material in the mold was held using a clamp and put in a water bath maintained at mouth temperature. The linear dimensional changes taking place in each material with time were measured using the vision inspection system.
On comparison with master die impression at 30min, 1h, and 1½ h time interval, a significant decreased mean dimension of condensation silicone was observed, whereas addition silicone and polyether showed statistically nonsignificant difference. At 2, 3, 4, and 12h time span, a significant difference in mean dimension of addition and condensation silicone was noted, whereas polyether showed a nonsignificant difference. At 24h, 1 week, and 15 days duration, on comparison with the master die, a significant reduction in mean dimension of condensation silicone was discovered, whereas addition silicone and polyether showed nonsignificant difference.
Polyether showed significantly lesser dimensional changes among all three materials, though the differences were small enough to be considered clinically acceptable.
Polyether showed significantly lesser dimensional changes among all three materials, though the differences were small enough to be considered clinically acceptable.
The aim of this study was to evaluate the hydrogen peroxide and cetylpyridinium chloride as bacterial decontaminants of dental unit water lines at a private Peruvian dental school.
Water samples were obtained from 66 dental units of a University Dental Clinic before decontamination treatment and at days 3 and 7 thereafter. U0126 purchase The biofilm treatments were applied equitably among the two treatment groups (
= 22) and one negative control (distilled water). The samples obtained on each collection day were taken to the biochemical laboratory in thermal boxes and then diluted, seeded, and incubated at 37°C for 24h to count colony forming units per milliliter (CFU/mL).
The samples to which hydrogen peroxide were applied had a mean of 1.53 × 10
CFU/mL before application, 0.04 × 10
CFU/mL at day 3, and 0.03 × 10
CFU/mL at day 7, whereas the samples undergoing cetylpyridinium chloride treatment had a mean of 1.74 × 10
CFU/mL before application, 615.38 CFU/mL on day 3, and 307.69 CFU/mL on day 7. Distilled water treatment showed a mean of 1.72 × 10
± 0.39 × 10
CFU/mL at baseline, 1.51 × 10
± 1.40 × 10
CFU/mL at day 3, and a mean of 1.74 × 10
± 0.47 × 10
CFU/mL at day 7. Statistically significant differences were found among the three treatment groups at days 3 (
≤ 0.001) and 7 (
≤ 0.001) but not at baseline (
= 0.306).
The antibacterial effect of cetylpyridinium chloride was significantly greater than that of hydrogen peroxide and distilled water, and can, therefore, be used for bacterial control in the water lines of dental units.
The antibacterial effect of cetylpyridinium chloride was significantly greater than that of hydrogen peroxide and distilled water, and can, therefore, be used for bacterial control in the water lines of dental units.
The objective of this study was to compare
the antifungal efficacy of the essential oil of
(Canela) (EOC) at 25%, 50%, 75%, and 100% against strains of
ATCC 10231.
The design was experimental,
, prospective, and longitudinal study, having a sample of
= 30 petri dishes per six groups. The test was conducted in the microbiology laboratory of the
. The essential oil was prepared by steam distillation, which means that the pressure steam enters in connection with the plant cells and breaks them, releasing the essence and trapping it in drops of water. Cinnamon essential oil was obtained using the hydrodistillation method, subsequently the oil obtained was dehydrated with sodium sulfate and then filtered at 0.22 µm. Then the vials were stored at a temperature of 4°C. Finally,
ATCC 10231 was used as the biological material. Antifungal efficacy was measured by the Kirby-Bauer method (disk diffusion).
It was found that in the 24-h group the concentration that had the greatest antifungal effecompared to nystatin. Otherwise, on analysis of the results in different concentrations, the EOC showed a directly proportional antifungal effectiveness as the concentration against the strains of C. albicans ATCC 10231 increased, compared to nystatin, suggesting its potential use as a possible attractive therapeutic alternative for the control of diseases caused by strains of C. albicans resistant to nystatin.
To assess the efficacy of the antimicrobial properties of charcoal vs. non-charcoal toothbrushes and the level of bacterial contamination in the oral cavity using a charcoal toothbrush.
This was a randomized, double-blind controlled study in which both male and female subjects aged from 18 to 35 were included (
= 30; 15 males and 15 females). The subjects were selected from (students) of Riyadh Elm University in Riyadh, Saudi Arabia. Subjects were informed about the study and signed the consent form before participation. From January to April 2019, subjects were given charcoal and non-charcoal toothbrushes.
The Wilcoxon signed rank test showed that there was a significant difference in bacterial counts between non-charcoal and charcoal toothbrushes (
= 0.000). Of the subjects, 70% showed a decrease in the number of bacterial counts while 30% showed no increase in bacterial counts. There was a statistically significant decrease in the number of bacteria in the gingival crevicular fluid (GCF) with charcoal treatment (
< 0.
