Evaluation of knowledge, attitudes and practices of health services vocational schools’ students with regard to COVID-19

Introduction: The most critical intervention to control SARS-CoV-2 infection requires appropriate knowledge and attitude towards the virus. Objective: To determine the level of knowledge, attitudes and practices of students of a health services’ vocational school with regard to COVID-19. Methods: Cross-sectional study carried out between May and June 2020 in a university of the Turkish region. Data were collected through an online survey portal. Results: Four hundred and fifty-four questionnaires were completed and returned. Students of medical laboratory techniques and first aid and emergency medicine had significantly higher knowledge scores (p < 0.001). More than 43 % of the students (n = 201) used the TV as their main source of information on COVID-19. There was a positive attitude towards preventive measures such as avoiding crowded places and maintaining hand hygiene and social distance. Conclusions: Health services vocational school students have good knowledge and positive attitude towards COVID-19. The main sources of information were the TV and social media. For this reason, more attention should be given to these issues in the curriculum in order for science-based information sources to be used

The effect of different application modes of a 1-step self-etch adhesive on the clinical performance of Class I composite restorations: A randomized controlled clinical trial

© 2022 Wiley Periodicals LLC.Objective: To evaluate the clinical performance of a 1-step self-etch dentin adhesive that was applied according to the manufacturers' recommendations, doubling the adhesive application time and layer in Class I cavities with a composite resin. Materials and Methods: A total of 39 patients aged between 14 and 43 (mean age: 19.1) years were enrolled in the study. Each patient received three restorations. In these three restorations, a 1-step self-etch adhesive was applied according to the manufacturer's recommendations (control group), by doubling the adhesive application time, and with double layers. The restorations were evaluated according to modified USPHS criteria at baseline, and 1, 2, 3, and 4-year recalls. Results: After 4 years, the success rate was 100% for restorations with the adhesive applied according to the manufacturers' recommendations, 96.9% for restorations applied by doubling the adhesive application time, and 93.8% for restorations applied with double adhesive layers. There was no significant difference between the three application methods among all the evaluation periods regarding the evaluation criteria. Conclusions: The 4-year success rates of a 1-step self-etch dentin adhesive that was applied according to the manufacturers' recommendation, by doubling the adhesive application time, and with double layers were excellent. Clinical Significance: It is not recommended to double the adhesive application time nor apply a double layer of a 1-step self-etch adhesive because it does not improve the clinical performance of Class I composite restorations

Microtensile Bond Strength of CAD/CAM Resin Blocks to Dual-Cure Adhesive Cement: The Effect of Different Sandblasting Procedures

Purpose To investigate the effect of sandblasting powder particles on microtensile bond strength (mu TBS) of dual-cure adhesive cement to CAD/CAM blocks. Materials and Methods CAD/CAM blocks (Cerasmart, VITA, and LAVA) were cut in slabs and divided into groups: group 1, no sandblasting; group 2, sandblasted with 27-mu m Al2O3; group 3, sandblasted with 30-mu m CoJet; group 4, sandblasted with 50-mu m Al2O3. After sandblasting, all specimens were silanized and luted using dual-cure adhesive cement (G-CEM LinkForce). After 24 hours, bonded specimens were cut into 1 +/- 0.2 mm(2) sticks, and mu TBS values were obtained (N = 30). Additionally, 132 CAD/CAM block sections were prepared for surface roughness testing and scanning electron microscopy (SEM) evaluations. Results were analyzed using Kruskal-Wallis One-way ANOVA and Dunn's Post Hoc Test (p 0.05). For LAVA, mu TBS values of specimens that were sandblasted with 50-mu m Al2O3 powder were significantly higher than 30-mu m-SiO2 and 27-mu m Al2O3 (p < 0.05). Conclusions The sand particles investigated (27-mu m Al2O3, 30-mu m SiO2, or 50-mu m Al2O3) did not significantly affect mu TBS results of CAD/CAM blocks for Cerasmart and VITA, although the results changed significantly for LAVA. The ideal bond protocol for CAD/CAM blocks is specific to the material used

SHORT- AND LONG-TERM BOND STRENGTHS OF A GOLD STANDARD

Purpose: The aim of this study was to investigate the micro tensile bond strength of a self-etch adhesive system following 1 year storage in water. Materials and Methods: 10 sound human molar teeth were used for micro tensile bond strength test. Twostep self-etch dentin adhesive (Clearfil SE Bond®) was applied to the flat dentin surfaces according to the manufacturer’s instructions. Composite blocks (Z- 250; 3M ESPE) of 5 mm in height have been prepared by using layering technique. Teeth were stored in water for 24 hours at 37°C and longitudinally sectioned to obtain dentin sticks of 1 mm2.Randomly selected samples from half of the teeth were immediately subjected to micro tensile test and. Remaining specimens were tested after 1 year storage in water. Bond strengths were calculated in megapascal (MPa). Results: Means and standard deviations of the Clearfil SE Bond® micro tensile bond strength values were, respectively, 37.31 ± 13.77 MPa and 24.78 ± 2.99 MPa after 24 h and 1 year of storage in water. The difference was statistically significant (p=0.031). Conclusion: Long-term storage in water decreased the micro tensile bond strength values of the twostep self-etch adhesive which has been accepted as the gold standard in bond strength tests

Perception of care quality and ethical sensitivity in surgical nurses

Background: It is stated that high ethical sensitivity positively affects the quality of nursing care. However, the relationship between nursing care quality and ethical sensitivity has not been clearly demonstrated in researches. Aim: This study was carried out to determine the relationship between surgical nurses' care behaviors and their ethical sensitivity. Method: The sample of this cross-sectional, descriptive-correlational study consists of 308 nurses who worked at the surgical departments in four Turkish hospitals. The data were collected using the Nurse Description Form developed by the researcher, Caring Behaviours Inventory-24 and Ethical Sensitivity Questionnaire. Data were evaluated by the Mann Whitney U test, Kruskal Wallis one-way analysis of variance and Spearman correlation analysis. Ethical considerations: The study was approved by the ethics committee. Verbal and written consent was received from the nurses. Results: It was found in the study that nurses' Caring Behaviours Inventory-24 total score median was 5.25 (4.83-5.58), nurses' perception level of caring quality was high, median of Ethical Sensitivity Questionnaire total score was 89.00 (75.00-101.00) and nurses' ethical sensitivity was moderate. A negative significant relation was found between nurses' Caring Behaviours Inventory-24 total score and Ethical Sensitivity Questionnaire total score (r = -0.162; p = 0.009). A negative relation was also detected between nurses' working period at the current clinic and providing benefit (r = -0.147; p = 0.012), holistic approach (r = -0.139; p = 0.018) and orientation (r = -0.175; p = 0.003) scores of Ethical Sensitivity Questionnaire sub-scales. Conclusion: Nurses' perception levels of caring quality were high and their ethical sensitivity levels were moderate. It was found out that nurses' ethical sensitivity increased together with their perception of caring quality, and as their working period at the current clinic increased, the ethical sensitivity also increased in terms of the sub-scales of providing benefit, holistic approach, and orientation. The factors that adversely affect the quality of nursing care and ethical sensitivity should be examined and attempts should be made to improve the working environment.Kocaeli University Scientific Research Projects Coordination UnitKocaeli University [2018/044]The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The budget of this project was allocated by Kocaeli University Scientific Research Projects Coordination Unit (Project Number: 2018/044).WOS:0005128503000012-s2.0-85079719758PubMed: 3204342

Preprocedural Mean Platelet Volume Level Is a Predictor of In-Stent Restenosis of the Superficial Femoral Artery Stents in Follow-Up

Background. The mean platelet volume (MPV), the most commonly used measure of the platelet size, is a cheap and easy-to-use marker of the platelet activation. We aimed to evaluate the relationship between preprocedural MPV and other hematologic blood count parameters and in-stent restenosis in patients with superficial femoral artery (SFA) stenting. Methods and Results. The consecutive 118 patients who successfully underwent endovascular stenting of the SFA were enrolled retrospectively in the study. The mean follow-up was 23 ± 12 months. The in-stent restenosis was observed in 42 patients (35.6%). There were no statistically significant differences between the restenosis group and no-restenosis group in terms of age, gender, and smoking (p=0.116, p=0.924, and p=0.428, resp.). In the restenosis group, the MPV level was markedly higher than that in the no-restenosis group, and it was statistically significant (p<0.001). According to the ROC curve analysis, the optimal cutoff value of the MPV to determine the restenosis was >8.7 fL, and the level of the MPV >8.7 fL was a strong predictor of the restenosis (p<0.001) in logistic regression analysis. Conclusions. The measurement of the preprocedural MPV levels may help to identify high-risk patients for development of the in-stent restenosis. These patients may benefit from an aggresive antiplatelet therapy and close follow-up