• Journal of the Korea Convergence Society
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• v.9 no.11
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• pp.209-216
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• 2018

This study aimed to investigate the association of the muscle activity around the neck of the operator(dental hygienists') according to the change in the patient's neck angle during a direct visual inspection on the maxillary right-side molar palatal surface. The operators were $4^{th}$ year dental hygiene students, who are future dentalhy gienists, having accurate understanding on and awareness of the location of the operation site, hand fixation, and how to use the tools. Data on the change in the muscle activity around the neck were collected by using surface electromyography and neck goniometer. SPSS statistics 20 was used for statistical analyses including Shapiro-wilk test and one-way ANOVA. As a result, the activities of the operator upper trapezius, cervical erector spinae, and levator scapulae muscles significantly decreased when the patient's head was angled compared to when it was not. For the angle of the operator head, the head bend significantly decreased when the patient's head was angled than when it was not. Based on the study results, it is expected that angling the patient's head when treating his or her teeth will decrease the excessive muscle activity around the neck of the operator, and will reduce muscle fatigue. Therefore, angling the head of the patient while treating his or her teeth is recommended. This suggests that muscle pain caused by repetitive actions in the wrong posture can be reduced.

• Journal of Convergence for Information Technology
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• v.10 no.10
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• pp.227-235
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• 2020

This study was conducted to induce changes in the correct oral hygiene management habits and attitudes of university students by grasping the relationship between oral hygiene status and of self-perception halitosis of university students, and to present basic data to improve oral health. The data survey was conducted on 322 university students under the age of 23 among the participants who visited the department of dental hygiene at K University in Daejeon for practice from September 23, 2019 to December 6, 2019. The degree of dental deposition was grade B, the patient hygiene performance index was 'normal' and the amount of tongue plaque was 'good' the highest, and the factors that were highly related to self-perception halitosis were the amount of tongue plaque and were dental deposits rating and grade. Also, oral hygiene status and self-perception halitosis were correlated with each other, and it was found that oral hygiene status had an important effect on self-perception halitosis. Therefore, it is necessary to actively develop interesting and practical oral health care programs and publicity plans so that the quality of life of oral health for university students can be improved.

• Journal of Convergence for Information Technology
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• v.11 no.9
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• pp.165-172
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• 2021

This study was carried out in order to identify oral health knowledge according to police officers' oral health behaviors. The questionnaire survey was conducted targeting 237 police officers in Gwangju. A tool used general characteristics, oral health knowledge, oral health behavior and oral health education needs. The analysis was processed with descriptive statistics, t-test, Anova and regression analysis. As a result, the oral health knowledge was high in a person of using oral hygiene products and in a person of experiencing a visit to dental clinic(p<0.001). The desired the oral health education were a specialist's direct verbal explanation and the correct tooth-brushing method. Also, marital status, educational level, smoking status, using oral hygiene products and Dental visit experience were identified to have influence upon a oral health knowledge (explanatory power, 40.5%). Hence, the results of this study will be able to be applied to basic data in case of developing an oral health education program and planning a dental health project for enhancing oral health in police officers.

• Journal of Convergence Society for SMB
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• v.6 no.4
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• pp.115-122
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• 2016

The purpose of study is to investigate the effects of stress on major satisfaction and career decision attitude of dental hygiene students. From April 20, 2016 to May 11, 2016, 321 dental hygienists were enrolled in of colleges in Gwangju and Jeollanam-do. In detailed averages of career decision attitude on usual stress, career preparation behavior was $3.23{\pm}0.63$, career maturity was $2.56{\pm}0.62$ and career decision was $2.64{\pm}0.75$. Average of career preparation behavior was highest. Factors influencing major satisfaction were career maturity, career preparation behavior, grade, and usual stress in details of career decision attitude. Therefore, it is necessary to base the data on stress reduction and development of career program.

• Journal of Korean Dental Hygiene Science
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• v.5 no.1
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• pp.13-19
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• 2022

Background: In this study, zirconia copings were fabricated by setting clinically acceptable inner values for prostheses using computer-aided design/computer-aided manufacturing (CAD/CAM). The processed copings were evaluated for the marginal and internal fit of each abutment shape with a CAD program using the silicone replica technique. Methods A total of 20 copings was produced by selecting models commonly used in clinical practice. After injecting the sample, the minimum thickness, internal adhesion interval, and distance to the margin line were set to 0.5, 0.05, and 1.00 mm using a dental CAD program, respectively. It was measured using a 2D section function in a three-way program of the silicon replication technology. Although the positions and number of measurements of the anterior and posterior regions differed, nine parts of each pre-tube were designated and measured by referring to a previous study to compare the two samples. Results As a result, the average margin of the mesial, distal, and buccal (labial) surfaces was 59.90 ㎛ in the anterior region and 60.40 ㎛ in the posterior region. The mean axial wall margin was 67.25 ㎛ in the anterior region and 69.25 ㎛ in the posterior region. In occlusion, the anterior teeth (77.70 ㎛), posterior teeth (77.60 ㎛), and both anterior and posterior regions were within the clinically acceptable range. Conclusion The edge and inner fit of zirconia coping manufactured using the CAD/CAM system showed clinically applicable results. To reduce errors and increase accuracy, materials and machine errors that affect the manufacture of prosthetics should be investigated. Based on our results, the completeness of prosthetics could increase if the inner value and characteristics of the material are adjusted when applied in clinical practice.

• Journal of Convergence for Information Technology
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• v.8 no.6
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• pp.31-41
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• 2018

The purpose of this study was to investigate the applicability of project - based learning as a teaching method for 'Dental Hygiene Practice' in the community dental hygiene department at G city S university. The subjects were 30 students in the fourth grade in 2018. Data collection period was from March 12 to June 27, and mean and standard deviation were compared using SPSS 20.0 program. The results of the analysis showed that the score of the team with high team performance was high ($3.91{\pm}0.82$), the students were required to practice ($4.10{\pm}0.88$), and the feedback from the professor ($3.73{\pm}0.86$) Satisfaction was high. It was determined that the application of project - based learning classes in the 'Community Dental Hygienic Field Practice' course was appropriate for the class.

• Journal of Convergence for Information Technology
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• v.9 no.9
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• pp.219-228
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• 2019

The purpose of this study was to develop a tool to assess the job satisfaction of dental hygienists and to evaluate the validity and reliability of the dental hygienist. A total of 54 items were translated into 24 items through content validity and content analysis. The results of this study are as follows: overall satisfaction, income, patient relations, professional time, personal time, Practice Management, Delivery of Care and co-worker relations were classified by exploratory factor analysis. The fit of the model through confirmatory factor analysis generally met the criteria. As a result of the internal consistency test, Cronbach's ${\alpha}$ was found to be a reliable measure of measurement, with an overall satisfaction of 0.918, an income of 0.833, a patient relationship of 0.804, an occupational time of 0.675, a personal time of 0.939, a work practice of 0.739, The validity and reliability of the dental hygienist 's job satisfaction measurement tool were verified to be appropriate. It can be used to study the job satisfaction of dental hygienist in the future.

• Journal of the Korea Convergence Society
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• v.13 no.5
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• pp.501-508
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• 2022

It has been found that the incidence and mortality of COVID-19 are high in patients with underlying chronic diseases. Amid COVID-19 pandemic, tooth brushing is as important as hand washing for health care. The aim of this study was to identify factors related to the rate of tooth brushing and hand washing in hypertensive patients. We analyzed 62,762 hypertensive patients over the age of 40 from the Community Health Survey 2020. The practice rate of hand washing was higher among women, younger age, higher education level, mask wearers when going out, and tooth brushing practitioners after lunch. The hand washing practice rate was higher in hypertensive patients who practiced tooth brushing. In conclusion, there was the relationship between oral hygiene and personal quarantine. It is necessary to prepare sustainable measures to increase the practice rate of infectious disease prevention behaviors for patients with underlying chronic diseases who are susceptible to COVID-19.

• Journal of Convergence for Information Technology
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• v.9 no.7
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• pp.159-167
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• 2019

This study aimed to evaluate the effects of oral rinsing solution on the color stability, surface microhardness and surface roughness change of composite resin. In this in-vitro study, 80 disc-shaped specimens were fabricated of Filtek P60 and Filtek Z250(A2 shade). The samples of each group were randomly divided into eight subgroups (n=10). The baseline color values ($L^*$, $a^*$, $b^*$) of each specimen were measured according to CIE LAB system using a colorimeter. After baseline color measurements, the control samples were immersed in distilled water and the test groups were immersed colorless, green and purple mouthrinses three times a day for thirty minutes. This process was repeated for two weeks. Green and purple oral rinsing solutions displayed color, microhardness and roughness change of all composite resin after immersion in the mouthrinses. Therefore, prescription of oral rinsing solution for a minimum of two weeks is a common practice, which may cause discoloration of aesthetic composite restorations of patients.

• The Journal of the Korea Contents Association
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• v.21 no.1
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• pp.363-372
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• 2021

Aim of this study was to confirm the effect of teaching and learning methods on outcomes of learner according to learning style. For this, 22 of dental hygiene students(case group) was treated teaching & learning methods according to learning style while 24 of students(control group) was non treated. Pre-survey were performed before performance of program. Formative Evaluation(FE) was conducted in 2, 3 and 4 week of program respectively and summative evaluation(SE), survey of subject interest(SI) and learning motivation(LM) were conducted in 5 week. The result of study, FE, SI and LM after treatment were increased than before treatment in case group(p<0.05). SI and LM of case group were higher than control group(p<0.05). FE after treatment was increased than before treatment in he assimilator(p<0.05). SI and LM of case groups were higher than control group in assimilator and diverger(p<0.05). The result of correlation analysis, SI was related with SE, FE, LM(p<0.01, p<0.05). Thus, it is necessary to development, application and study of teaching & learning consider to learning style.