Objectives: As COVID-19 continued to spread in the local community due to influx, each university had to conduct online classes completely or partially. The purpose of this study was to investigate the satisfaction of learners with the lecture content in online classes, due to the change of the class environment during the pandemic. A survey for assessing satisfaction from online class in major subjects was conducted. Methods: Online questionnaires were conducted from September 1 to November 30, 2022, targeting 1st, 2nd, 3rd, and 4th year students in the Department of Dental Hygiene at college. Results: As a result of the study: 1. PPT+face, voice recording class-class method with class content was found to be a high 4.06±0.841 points and learning satisfaction was found to be an average of 3.98±0.83 (P<0.015); the other satisfaction: 2. PPT+voice recording class (LMS): 3.96±0.85, 3. Non-face-to-face online class (ZOOM): 3.82±0.89, and 4. LMS system: 3.98±0.88. I think that satisfaction with online classes can be improved with the quality of the content during major online classes in addition to more active interactions taking place between students and professors.
Objective: A self-administered questionnaire was conducted with three hundred dental hygienists. A total of three hundred questionnaire copy is collected. The copies with insincere answers or errors were excluded, and finally two hundred and 61 copies were used.
Methods:The collected data were analyzed with SPSS 12.0 (SPSS Inc., Chicago, IL, USA) program. The frequency and percentage of the study subjects' subjective pains of musculoskeletal symptoms were calculated according to the characteristics of their work conditions and their body regions related to work. In order to analyze relations between the subjective musculoskeletal symptom in the each one of body regions, and work conditions and treatment posture, Pearson's Correlation Analysis was conducted.Results: 1) Regarding their daily treatment hours, those working 2 to 4 hours accounted for the highest rate (46.4%)-Their subjective musculoskeletal symptoms were found in the order of the shoulders (76.0%), the neck (75.2%), and the waist (71.1%).2) Regarding the use of their hands for treatment, those using both hands accounted for 44.4%-Their subjective musculoskeletal symptoms were found in the order of the shoulders (76.7%), the neck (70.7%), the waist (64.7%), and the wrists (60.3%). Subjective musculoskeletal symptoms on the wrists were more found. 3) Regarding dental hygienists' operation position for treatment, those in the 9 o'clock position accounted for 63.6%-Their subjective musculoskeletal symptoms were found in the order of the shoulders (80.1%), the neck (75.9%), and the legs/feet (66.3%).
Conclusion:Most dental hygienist had the problem with waist and shoulder posture for direct treatment, and suffered subjective musculoskeletal symptoms mostly on the shoulders, the neck, and the waist in order.
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