Beachmichelsen5518

 Clinics are increasingly turning toward using virtual environments to demonstrate and validate hearing aid fittings in "realistic" listening situations before the patient leaves the clinic. One of the most cost-effective and straightforward ways to create such an environment is through the use of a small speaker array and amplitude panning. Amplitude panning is a signal playback method used to change the perceived location of a source by changing the level of two or more loudspeakers. The perceptual consequences (i.e., perceived source width and location) of amplitude panning have been well-documented for listeners with normal hearing but not for listeners with hearing impairment.

 The purpose of this study was to examine the perceptual consequences of amplitude panning for listeners with hearing statuses from normal hearing through moderate sensorineural hearing losses.

 Listeners performed a localization task. Sound sources were broadband 4 Hz amplitude-modulated white noise bursts. Thirty-nine sourc these listeners.Arterial hypertension and periodontal diseases are two of the pathologies with more prevalence worldwide. In the last few years, several scientific evidences have demonstrated the relationship between both diseases. Besides the etiopathogenic and causal relationship, some recent publications have pointed out that the therapeutic approach of periodontitis could have positive effects on the control of arterial hypertension.The aim of this systematic review is to determine whether there is a decrease in or better control of blood pressure after performing nonsurgical periodontal treatment in patients with periodontitis.A thorough search in PubMed, Scopus, and ISI Web of Science databases with the keywords "'periodontal disease' OR 'periodontitis' OR 'periodontal' AND 'blood pressure' OR 'hypertension' OR 'arterial hypertension'" was conducted. The quality of the reported information was assessed following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement for systematic reviews.Eight articles were considered for this systematic review. Five of the studies showed statistically significant reduction in systolic blood pressure (SBP) values.Despite the limitations of the review, nonsurgical treatment of periodontal disease seems to reduce SBP values. Further research with larger and longer-term clinical trials are needed to demonstrate this potential positive effect.

 The aim of this study is to evaluate the sources of anxiety and stress among dental students when returning back to training in dental colleges in the era of COVID-19, with the evaluation of a secure condition for training and practicing without the risk of contamination.

 A questionnaire was edited in English and distributed to the dental students through the official site of Al-Farabi Private College/Jeddah/KSA. The questionnaire was assessed with different parameters general information of respondents, anxiety and stress during dental training, importance criteria to be applied by dental college, and exploring the uses and benefits of e-learning.

 There were 315 respondents who participated in the study. About 85% participants feel anxiety and stress to return to the dental college. Theses-fearing expressed as high level for 63% compared with 2% before COVID-19. Almost 75% had supported the procedures to be implemented to ensure the safety of the students. About 43% of respondents agreed to continue e-learning in theoretical part only, 1% for clinical part only, and 47% in both. Finally, 67% of respondents preferred the use of alternative methods of learning (Phantom Laboratory) or any simulated teaching aids.

 A revision of infection control management, improving the working environment, and learning how to deal with patients in purpose to protect everyone are mandatory to alleviate student anxiety to return to training in dental colleges.

 A revision of infection control management, improving the working environment, and learning how to deal with patients in purpose to protect everyone are mandatory to alleviate student anxiety to return to training in dental colleges.

 In Saudi Arabia, more than 100, 000 cases of COVID-19 have been reported, and more than 4,000 in Al Hofuf to date. Dental healthcare personnel are at a higher risk of COVID-19 due to their exposure to saliva, blood, and aerosol/droplet during their daily practice. Their perceptions of COVID-19 drive their behaviors.

 A cross-sectional online survey to assess COVID-19 related perceptions and possible disparities between them.

 Data were analyzed using the Statistical Package for the Social Science, version 23 (IBM SPSS). Descriptive analyses were performed using frequencies and percentages for categorical variables, mean and (± SD) for numerical variables. Bivariate analyses were assessed using

-test and one-way ANOVA, with a 95% confidence interval (CI).

 With a response of 75% (150), results showed that there were perceptional disparities students and technical staff perceived more barriers to preventive measures compared to faculties with a mean difference of (-0.145 SD ± 0.580,

= 0.802, CI -1.29 / 1.00 and -2.433, SD ± 0.94,

= 0.010), respectively. This was also shown in threat perception with a mean difference of (2.525, SE ± 0.917, CI 0.71/4.34,

= 0. 0.007). this website Students perceived more threat than clerks did with a mean difference of (1.281, SE ± 0.569, CI - 0.16 / 2.41,

= 0.026), while clerks perceived less threat than the technical staff with a mean difference of (-2.790, SE ± 0.860, CI -4.49 /-1.09,

= 0.001).

 There was a clear disparity in the perceptions among the different categories of participants. More emphasis on the training and preparedness of the dental healthcare personnel is required.

 There was a clear disparity in the perceptions among the different categories of participants. More emphasis on the training and preparedness of the dental healthcare personnel is required.

 The aim of this study was to evaluate the effects of 2% chlorhexidine gluconate (CHG) and 2% sodium fluoride (NaF) as endodontic irrigants on microhardness of root dentin.

 In this

study, access cavity and root canal preparations were done on 24 freshly extracted anterior teeth. After sectioning into 24 dentin discs using hard tissue microtome in 2 mm thickness, all samples were immersed in solutions of 17% ethylenediamine tetra-acetic acid (EDTA) (2 minutes) followed by 2.5% of sodium hypochlorite (NaOCl) (10 minutes). Then samples were randomly divided into three groups based on the irrigant used Group I saline (control group); Group II 2% NaF; Group III 2% CHG for two minutes each. Dentin microhardness was measured before (pretreatment), during (after treatment with 17% EDTA and 2.5% NaOCl), and after the experimental period (after treatment with saline, 2% NaF, and 2% CHG) using a Vickers indenter. Statistical evaluation of the data was done using one-way analysis of variance (ANOVA) and the Student's

-test, and the values are tabulated.