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pISSN : 2287-1705 / eISSN : 2288-2294

2020 KCI Impact Factor : 1.08
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2020, Vol.20, No.5

  • 1.

    Number of teeth and quality of life among the elderly: A systematic review

    Na-Young Lee | Choi Heena | Han-Na Kim | 2020, 20(5) | pp.545~559 | number of Cited : 0
    Abstract PDF
    Objectives: The purpose of this study was to systematically analyze and examine the relationship between the number of lost teeth and quality of life (QoL) among elderly. Methods: Papers published in Korean and English between 2000 and 2020 were searched. Relevant papers were selected by two independent readers according to predefined exclusion criteria. Quality assessment and consistency tests were conducted using ROBIS. Results: Twelve of the 854 studies were targeted, and the analysis confirmed that tooth loss was related to a decrease in the QoL in 11 studies. Tooth loss negatively affected the QoL among the elderly. However, one study indicated that the QoL and number of teeth were not related. Rather, dry mouth affected the QoL, and cavities caused by oral dryness led to tooth loss. Most of the selected studies indicated that the QoL of elderly individuals with a single tooth was higher than that of those with no teeth. Conclusions: This study provides strong evidence that tooth loss in the elderly is associated with impairment of QoL.
  • 2.

    Factors affecting satisfaction with online lectures for real-time learning

    Seung-Hun Lee | 2020, 20(5) | pp.561~569 | number of Cited : 0
    Abstract PDF
    Objectives: The purpose of this study is to investigate the interaction and satisfaction of with web-based lectures. In addition, it seeks identify their correlations as well as the factors that influence satisfaction. Methods: The study subjects consisted of 139 college students taking up dental hygiene from Suncheon. ANOVA, correlation analysis, and regression analysis were used on the data collected. The Cronbach’s alpha for interaction and satisfaction were 0.949 and 0.921, respectively. Results: The interaction recorded was moderate compared to face-to-face lectures. In particular, interaction between students was higher among 3rd grade students compared to those in the 1st grade (p=0.002). Satisfaction with the appropriateness of lecture content and duration was high, but relatively low in terms of the quality of the lecture and the desire to broaden its scope. In particular, satisfaction was higher among students in higher grade levels than their more junior counterparts (p<0.05). It was also found to be positively correlated with interaction (p<0.01). Their respective presence on the educational platform had the greatest impact on satisfaction (β=0.495, p<0.001). Conclusions: Increased interaction results in greater levels of satisfaction. Furthermore, an improvement in the quality of the lectures and the students’ perception of them would enable lectures to be conducted more effectively in situations wherein face-to-face lectures cannot be done.
  • 3.

    Factors associated with unmet dental needs among adults with activity limitations

    Wonik Lee | 2020, 20(5) | pp.571~580 | number of Cited : 0
    Abstract PDF
    Objectives: This study aimed to investigate the factors associated with unmet dental needs among adults with activity limitations. Methods: Data were obtained from the seventh Korean National Health and Nutrition Examination Survey (KNHANES). The final sample consisted of 945 adults aged 20 years or older with limited activity. Logistic regression analysis was used to examine the influence of predisposing, enabling, and need factors on unmet dental needs. Results: The proportion of adults with unmet dental needs during the last year was 52.2% in the middle-aged group and 45.5% in the older adult group. Higher household income was associated with fewer unmet dental needs in both groups. In the older adult group, married people were less likely to have unmet dental needs. In the middle-aged group, adults who perceived their oral health as poor were more likely to have unmet dental needs. Conclusions: All three factors (predisposing, enabling, and need) were found to be associated with unmet dental needs among adults with activity limitations. Special efforts should be made to improve access to dental care services for middle-aged adults with activity limitations.
  • 4.

    Relationship between dental checkups and unmet dental care needs in Korean adults

    Son ji lyang | Kim, Jae-Hyun | Jong-Hwa Jang | 2020, 20(5) | pp.581~591 | number of Cited : 0
    Abstract PDF
    Objectives: Oral diseases can be prevented, and early treatment through dental checkups is important. This study was investigated the relationship between dental checkups and unmet dental care needs in Korean adults. Methods: From the data of the 7th Korean national health and nutrition survey (2016-2017), the final 9,300 of the 16,277 participants selected as the method for extracting stratified colonies by complex sample design. A structured questionnaire interview was used, and chi-square test and multiple logistic regression analysis were performed. Results: The relationship between dental checkups and unmet dental care needs for the last one year was analyzed by controlling demographic characteristics, variables related to health conditions, and “use of dental clinics for the last year.” The unmet dental care needs were 7.57 times higher (CI: 6.49- 8.83) for non-users of dental clinics for 1 year, and 1.32 times (CI: 1.13-1.54) for dental checkups for 1 year compared to non-dental checkups patients. Conclusions: As described above, there was a close relationship between adult dental checkups and unmet dental care needs. Therefore, it is suggested that it is necessary to expand educational publicity and prepare policy strategies such as visiting dental checkups to improve the adult dental checkups.
  • 5.

    The relationship between dental caries and obesity in Korean adults : The 6th Korea National Health and Nutrition Examination Survey (6th KNHANES, 2013-2015)

    Kyung-Hwa Park | lee mi ra | 2020, 20(5) | pp.593~602 | number of Cited : 0
    Abstract PDF
    Objectives: This study aims to assess the relationship between the body mass index and waist circumference, which are indicators of obesity, and dental caries according to gender. Methods: Data were used from the 6th Korean National Health and Nutrition Examination Survey (2013-2015). Out of a total of 29,321 subjects, 13,222 persons aged 19 or older and who responded to the survey items of this study were selected as subjects to determine the relationship between obesity and dental caries. Results: In the body mass index, the obese group had a higher prevalence of dental caries in both males (1.25 times) and females (1.35 times) than the normal group. Even in the underweight group, males were 1.83 times more likely to have dental caries than the normal group. In the waist circumference, the obese group had a 1.48 times higher prevalence of dental caries than the normal group in women only. Conclusions: According to the results of this study, it was observed that obesity was related to dental caries, and it was thought that obesity management and oral care education programs for adults in Korea were necessary.
  • 6.

    Oral hygiene device and related factors in cardiovascular disease patients

    sin young Park | 2020, 20(5) | pp.603~610 | number of Cited : 0
    Abstract PDF
    Objectives: This study was aimed at investigating the oral hygiene device use by cardiovascular disease patients and assessing related factors. Methods: We used data of 1,630 cardiovascular disease patients (including hypertension, stroke, and myocardial infarction) from the 7th Korean National Health and Nutrition Examination Survey (2016-2018). The χ² test and logistic regression analysis were performed to analyze the oral hygiene device use by the subjects and assess related factors. All statistical analyses were performed with the IBM SPSS Statistics, version 20.0. Results: The oral hygiene device use and related factors were significantly higher in patients with an educational level of middle school or below high school, with a score of 1.85 (95% confidence interval [CI] = 1.35–2.53), or college, with a score of 1.93 (95% CI = 1.19–3.14), compared to those with an educational level below primary school. Further, the oral hygiene device use and related factors were significantly higher in patients who answered ‘yes’, with a score of 1.96 (95% CI = 1.42– 2.73), compared to those who answered ‘no’ to the question on oral examination. Conclusions: More patients with cardiovascular disease did not use oral hygiene devices than those who did. It is necessary to expand the approach of preventive treatment to increase the utilization rate of oral hygiene devices.
  • 7.

    Changes in dental care utilization and expenditure by the expansion policy of the health insurance coverage : Korea Health Panel Survey 2012-2016

    Hyewon Seo | Young-Sil Kim | 2020, 20(5) | pp.611~621 | number of Cited : 0
    Abstract PDF
    Objectives: This study aimed to verify the impact of dental health care insurance coverage policy by analyzing the changes in dental care utilization and expenditures over 5 years from 2012 to 2016, when the dental health insurance coverage expansion policy was implemented. From the national cohort data collected by the Korea Health Panel Survey, a retrospective study was conducted for all household members using dental services. Methods: This study statistically verified the difference in the dependent variables by frequency analysis, chi-square test, t-test, and one-way analysis of variance (SPSS version 22, IBM Co. USA, p<0.05). Results: The annual utilization rate steadily increased from 23.4% to 26.1% between 2012 and 2016. Although there were differences in utilization rates by gender, age, and income level, patients kept using the dental services in 2016 regardless of the type of health insurance. The average annual copayment for patient expenditures (out-of-pocket amount) increased from ₩463,844 to ₩537,401 in 2012 and 2016, respectively. Of the dental care expenditures over 5 years, the ratio of uninsured expenses by the elderly decreased from 38.5% to 25.9%, and the national health insurance service coverage increased from 40.3% to 49.1%. Conclusions: Although this policy did not reduce overall patient expenditures, it has been found that there was a positive effect on the elderly and low-income groups; it increased the utilization and access to dental services.
  • 8.

    Differences in view of dental hygienist and patient's scaling actual condition and disputes

    Seong, Mi Gyung | Hyun-Kyung Kang | Yu-Rin Kim | 2020, 20(5) | pp.623~633 | number of Cited : 0
    Abstract PDF
    Objectives: Since scaling has been covered by insurance, the number of patients undergoing scaling has increased. Simultaneously, legal disputes around scaling have increased. Therefore, this study was aimed at comparing the differences between the perceptions of dental hygienists and patients regarding the scaling procedure and providing dental hygienists with basic data to find ways to reduce disputes arising from these differences. Methods: A survey was conducted on 119 dental hygienists working in Busan and the South Gyeongsang Province and 110 patients who visited hospitals for scaling. Frequency analyses were performed for dental hygienists' scaling behavior and patient discomfort during scaling. The independent t-test and chi-square test were performed to compare the perceptions of dental hygienists and patients regarding the scaling procedure. Results: Polishing after scaling was performed according to 70.1% of dental hygienists but only 29.9% of patients. Oral health education was provided according to 20.4% of dental hygienists, while 79.6% of patients said that they received oral health education at the Dentiform. The scaling time was reported to be shorter by patients than by dental hygienists. Both dental hygienists and patients said that legal action was required if problems occurred during scaling, and the refund standard was that patients needed it more than dental hygienists. Conclusions: There are differences between the perceptions of dental hygienists and patients regarding scaling. Dental hygienists should identify these differences and try to prevent conflicts or disputes with patients around scaling.
  • 9.

    A study among dental hygienists on providing oral health care and awareness among the elderly

    Jeong Kyung Yi | Ha,Myung-Ok | Kim Kyung Hee | 2020, 20(5) | pp.635~643 | number of Cited : 0
    Abstract PDF
    Objectives: The purpose of this study was to evaluate dental hygienists understanding of the provisions of oral health care and awareness for the elderly. Methods: A survey was conducted among 285 dental hygienists, currently practicing around Gwangju province, Korea. The questionnaire contained questions on general characteristics of the subjects (5 items), oral health status of the elderly (5 items), and awareness (8 items) among the dental hygienists. The data were analyzed using a chi-square test. IBM SPSS 21.0 program was used for all statistical analyses. Results: The results showed that 47.7% of the dental hygienists took care of 1 to 5 elderly patients per day; they could not provide high quality oral health education to these patients because of lack of knowledge, lack of treatment time, and excessive workload. An analysis of the hygienists’ professional educational experience related to oral healthcare of the elderly during university years showed that the older and more experienced hygienists’ were less likely to have completed this education, i.e., 22.05% and 10.9%, respectively (p<0.001). Of all the dental hygienists, 62.8% were interested in oral health problems of the elderly, and 34.4% of dental hygienists for geriatric oral care were the most needed for geriatric oral care education (p<0.001). Conclusions: According to these results, it is important that dental hygienists participate in training on oral healthcare for the elderly and develop various programs for managing the oral health of the elderly.
  • 10.

    Differences in dental hygienists’ infection control awareness and re-user rate of disposable dental care supplies

    Park Bo Young | HieJin Noh | 2020, 20(5) | pp.645~653 | number of Cited : 1
    Abstract PDF
    Objectives: The purpose of this study is to identify the difference between the awareness and reuser rate of infection control t for disposable dental care supplies (DDCS) according to general characteristics and infection management-related characteristics. Methods: A questionnaire was used for 277 dental hygienists to check the general characteristics, infection management-related characteristics, awareness of infection control disposable dental care products, syringe needle, prophylaxis cup, prophylaxis brush, plastic saliva ejector, orthodontic bracket, and gloves reuse rate. Results: The awareness of infection control for DDCS differed according to 'hospital type','average number of patients per day', 'presence or absence of infection control guidelines', and 'experience in infection management training in the last two years' (p<0.05). Reuser rates of disposable dental care products differed according to 'hospital type', 'average number of patients per day', 'presence or absence of infection control guidelines', and 'experience in infection management training in the last two years' (p<0.05). Conclusions: In order to manage infection of DDCS, the level of infection control system in the workplace is improved and support for related education is needed. In addition, guidelines and regulations on prohibition of reuse and classification criteria for various DDCS should be prepared.
  • 11.

    Dental hygienist's job recognition and vocational competency reinforcement

    Eun-Deok Jo | Eun-Sol Kim | Hong Hae-Kyung and 1other persons | 2020, 20(5) | pp.655~664 | number of Cited : 0
    Abstract PDF
    Objectives: The aim of this study was to analyze the qualities and problems to be solved to strengthen the vocational competency of dental hygienists and to identify the work to be institutionally established. Methods: From April 1 to May 30, 2019, a total of 325 people participated (152 registered dental hygienists: RDH , 173 students of dental hygiene: SDH) in this study. The survey items were as follows: “job awareness” (6 items), “problem to be solved to strengthen vocational competency” (5 items), “qualities to be equipped to strengthen”competency" (9 items), and “practical work to be institutionally established” (4 items). Results: RDH and SDH had the highest perception of professionalism (3.68, 3.99 points), and low remuneration against work (4.21, 4.18 points) was perceived as the most important problem to be solved. The qualities for competency reinforcement showed the highest results in expertise knowledge (4.68, 4.64 points) and vocation for job (3.76, 4.09 points). Practical work to be established institutionally appeared as follows: X-ray film reading, dental hygiene diagnosis, periodontal pocket measurement, and periodontal pockets (<6 mm) treatment. Conclusions: This study is expected to be actively used to strengthen the vocational competency among dental hygienists, construct work autonomy, and rationalize and legalize practical work.
  • 12.

    A study on the dental hygiene’s and dental hygiene students’s perception and the educational demands in the 4th industrial revolution of the health care professionals

    김선영 | 2020, 20(5) | pp.665~674 | number of Cited : 0
    Abstract PDF
    Objectives: This study investigated the perception and educational needs of the health care professionals in wake of the fourth industrial revolution. Methods: This study was conducted among 115 students from the Department of Dental Hygiene and 122 dental hygienists from Gwangju and Jeonnam, from June 25 to September 20, 2020. The questionnaire consisted of one question on the perception of the concept of the fourth industrial revolution and two questions on the influence of the fourth industrial revolution. It contained a total of eight questions on the desired education hours and education expenditure. Results: The degree of perception of the concept and influence of the fourth industrial revolution was 3.20 for both dental hygiene students and dental hygienists; the average of the two groups was the same. Regarding the educational experience, 'no experience' was the most marked response among both dental hygiene students and dental hygienists and no statistically significant difference was observed (p>0.05). Conclusions: As demanded by the changing times, it is necessary to identify the differences in educational demands of the two groups, develop educational programs according to the fourth industrial revolution, as demanded by the changing times, and apply educational programs that fit the educational needs of each group.
  • 13.

    Factors influencing the career preparation behavior of dental hygiene students

    Soo-Kyung Kim | 2020, 20(5) | pp.675~684 | number of Cited : 0
    Abstract PDF
    Objectives: This study examined the professionalism, major satisfaction, self-leadership, and career preparation behavior of dental hygiene students, and examined the factors affecting career preparation behavior. Methods: A self-administered questionnaire survey was conducted among dental hygiene students in the Seoul and Gyeonggi areas of Korea, and finally, questionnaires submitted by 190 subjects were analyzed. Statistical analysis was conducted using SPSS 21.0. Results: The average scores for professionalism, major satisfaction, self-leadership, and career preparation behavior among the evaluated subjects were 3.68±0.56, 3.44±0.46, 3.57±0.55, and 3.24±0.52, respectively. Students who answered that their motivation for career preparation according to general characteristics was “because it is a valuable job” showed the highest score of 3.60±0.54 for professionalism (p<0.01) and higher scores for major satisfaction and career preparation behavior (p<0.001). The factors that affected career preparation behavior were self-leadership (p<0.001), major satisfaction (p<0.01), and professional intuition (p<0.01). Conclusions: The study findings showed that groups with higher self-leadership, major satisfaction, and professionalism exhibited more active career preparation behavior. Therefore, various educational programs are needed to improve dental hygiene (academics) and career preparation behavior of students.
  • 14.

    Role·activity factors, ideal·value factors stress and stress amount relationship in clinical practice of dental hygiene students

    Ryu, Hae Gyum | 2020, 20(5) | pp.685~695 | number of Cited : 0
    Abstract PDF
    Objectives: The purpose of this study was to investigate role·activity factors, ideal·value factors stress and stress amount relationship in clinical practice of dental hygiene students. Methods: The participate in this study were 231 dental hygiene department students. the survey was conducted from August 24 to September 30, 2018, using a structured questionnaire(1040460-A-2018-036). The collected data were compared and analyzed using a ANOVA and multiple regression. Results: The factors affecting the amount of stress were investigated. Role and activity factors stress in case of too much assignment, repeat simple and funtional work, ideal and value factors stress in case of utilized as a subsidiary work practice institution rather than clinical practice, lake of awareness that the training institution is a trainee. Conclusions: School institution and departments form organic relationships with industries. Uniform training guidance for each training institution does not help with diversity or creativity and problem-solving skills. It gives some autonomy to the training guidance of training institutions, also a clear standard for the contents of the training. we need a system that can provide and evaluate basic guidelines for what students can do in clinical practice.
  • 15.

    Effect of mental health and academic self-efficacy on test anxiety in dental hygiene students

    Da-Hye Choi | Soo-Kyung Kim | 2020, 20(5) | pp.697~706 | number of Cited : 0
    Abstract PDF
    Objectives: The purpose of this study was to analyze the factors that affect the test anxiety among dental hygiene students, including mental health and academic self-efficacy. Methods: A self-administered questionnaire survey was conducted among dental hygiene students in a metropolitan area from July 21 to July 31, 2020, and finally, 196 copies were statistically analyzed using SPSS 21.0. Results: The mean values of mental health, academic self-efficacy, and test anxiety among the dental hygiene students were 1.47±0.41, 2.99±0.46, and 2.76±0.74, respectively. Mental health was negatively correlated with self-efficacy (r=-0.346, p<0.01) and positively correlated with test anxiety (r=0.405, p<0.01), while academic self-efficacy was negatively correlated with test anxiety (r=-0.424, p<0.001). The factors that affect test anxiety were somatization (p<0.05), anxiety (p<0.05), paranoia (p<0.05), task preference (p<0.05), and confidence (p<0.001), which are the detailed items of academic self-efficacy. Conclusions: It is necessary to develop and apply customized health programs suitable for individual students to improve their mental health, as well as develop teaching and learning methods that can improve academic self-efficacy, as mental health and academic self-efficacy are influential factors in test anxiety among dental hygiene students.
  • 16.

    Changes in treatment behavior and cost according to the operation of preventive dentistry in university dental hospital

    Hyo-Kyoung Hong | Seong-Woo Choi | 2020, 20(5) | pp.707~716 | number of Cited : 0
    Abstract PDF
    Objectives: This study aims to provide basic data for high-quality dental services. In addition, we will promote the operation of preventive dentistry that implements preventive measures. It was conducted to study the change of patient's treatment behavior and treatment cost due to the discontinuation of preventive dentistry in university dental hospitals. Methods: This study collected data using the integrated medical information system of the C University Dental Hospital. From September 1, 2017 to August 31, 2019, data were analyzed using frequency, percentage, mean, standard deviation, chi-square test using SPSS version 24.0 statistical program, and T-test. Results: There was a significant difference in the number of preventive dental treatment cases from 58.3% of preventive dental operation periods to 41.7% of preventive dental operation periods. As a result of comparing the medical expenses, the total medical expenses during the preventive dental operation period decreased from 521,308,872 won to 379,724,995 won during the discontinuation period, 141,583,877 won. The number of medical treatments by treatment behavior decreased 3,835 (28.4%) from a total of 13,520 preventive dental operation periods to 9,685. Conclusions: This study is meaningful as the first study to confirm the change in the treatment behavior and the change in the cost of treatment due to the discontinuation of the operation of preventive dentistry at university dental hospitals. In conclusion, it is thought that there is a possibility of the lack of accessibility and the limitation of professional preventive care due to the discontinuation of preventive dentistry.
  • 17.

    Development and evaluation of standards for clinical dental hygiene practice

    Hyo-Jin Lee | Soo-Myoung Bae | Choi YongKeum and 8other persons | 2020, 20(5) | pp.717~731 | number of Cited : 0
    Abstract PDF
    Objectives: The purpose of this study was to develop applicable standards for clinical dental hygiene practice in Korea and to evaluate their validity. Methods: Based on the standards for clinical dental hygiene practice developed in the United States and Canada, the standards were adapted to be applicable in Korea. The validity of the standards was evaluated by a self-writing questionnaire among 14 professors and 10 clinicians using a developed tool for evaluating the standards. A focus group interview was additionally conducted for clinicians to increase the validity of the standards. Descriptive statistics and Mann-Whitney test were performed using SPSS 25.0. To analyze the content of the focus group interviews, content analysis was conducted. Results: The standards for clinical dental hygiene practice consisted of five elements of professionalism for dental hygienists and a total of 28 items to perform the five stages of dental hygiene process of care (assessment, diagnosis, planning, implementation, and evaluation) and included conceptual meaning, clinical significance, and application methods with examples for each item. Conclusions: The standards for clinical dental hygiene practice developed in this study could contribute to standardizing dental clinical practices provided by dental hygienists. It is necessary to consistently improve the standards that are highly practical, to prevent oral diseases and maintain oral health of the public, based on the results of this validity evaluation.
  • 18.

    Trend analysis of articles published in the Journal of Korean Society of Dental Hygiene, from 2016 to 2018

    Kim Yun Jeong | 2020, 20(5) | pp.733~741 | number of Cited : 0
    Abstract PDF
    Objectives: The purpose of the study was to analyze papers published in the Journal of Korean Society of Dental Hygiene (JKSDH) and to identify the current state of dental hygiene research and recommend directions for future research. Methods: A total of 315 articles published between 2016 to 2018 were reviewed using analysis criteria. Results: The number of grant research and experimental studies during 2016-2018 was higher than that before 2015. Quantitative studies were dominant and oral health was the most common research topics. The number of published papers, the proportion of reported reliability of instrument studies, reported ethical consideration and studies that described criteria for sample size had increased. The most common sampling of quantitative studies were convenient sampling and questionnaire and big data of data collection methods were the most. Conclusions: Findings of this study indicate that the recent trends in dental hygiene research and the direction of dental hygiene research and will improve the quality of papers and promote the reputation of JKSDH as an international journal.
  • 19.

    Association of periodontitis-related bacteria complex with socio-demographic and oral health condition among the elderly in a rural area

    Seung-Geun Lee | Eun-Jae Jung | Kim Ji Hye and 2other persons | 2020, 20(5) | pp.743~752 | number of Cited : 0
    Abstract PDF
    Objectives: The objectives of this study were to investigate the distribution and level of periodontopathic bacteria with the general characteristics and oral health condition of the elderly. Methods: A total of 335 elderly individuals aged 65 years or older who lived in Ganghwa-gun, Incheon, were included in the study. Oral examination, investigation through a questionnaire, and collection of saliva were carried out. The collected saliva was analyzed for the distribution and levels of bacteria (red and orange complex bacteria) by real-time polymerase chain reaction. Statistical analyses were performed using chi-square test, t-test, one-way analysis of variance, and Pearson’s correlation coefficient with SAS statistical software version 9.4. Results: Among the general characteristics, there were significant differences in the distribution of Porphyromonas gingivalis, Treponema denticola, and Parvimonas micra depending on sex, age, and dental visits (p<0.05). The number of remaining teeth and denture use were related to the distribution of periodontopathic bacteria, except T. denticola (p<0.05). Additionally, periodontitis was related to the distribution of P. gingivalis (p<0.05). As the number of remaining teeth increased, the copy number of red and orange complex bacteria also increased (p<0.05). Those individuals who did not use dentures and had periodontal disease had more periodontopathic bacteria (p<0.05). Conclusions: The distribution and copy number of periodontopathic bacteria in the elderly were more related to oral health condition than to general characteristics. In particular, the distribution and copy number of periodontopathic bacteria were higher in subjects with multiple remaining teeth, no dentures, and periodontal disease.
  • 20.

    Effect of probiotics intake on oral environment changes of the elderly in long-term care facilities

    Jo Serim | Cho, Ja-Won | Jong-Hwa Jang | 2020, 20(5) | pp.753~762 | number of Cited : 0
    Abstract PDF
    Objectives: This study was aimed at evaluating the effects of changes in the oral environment of the elderly in long-term care facilities after the intake of Weissella cibaria. Methods: The test group ingested the W. cibaria strain Chonnam Medical University (CMU), and the control group ingested the control food. Of all randomized trial subjects, 62 were analyzed (32 in the experimental group and 30 in the control group). In this 8-week demographic study, we evaluated self-perceived halitosis, changes in halitosis, sensory test results, tongue plaque index scores, saliva buffering capacity, and the salivary flow rate. Results: The W. cibaria CMU intake in the elderly in long-term care facilities during the experimental period did not demonstrate statistically significant changes in the salivary flow rate. However, self-perceived halitosis, organoleptic test results, tongue plaque index scores, and salivary buffering capacity demonstrated statistically significant differences between the experimental and control groups. These findings partially confirmed the beneficial effects of the W. cibaria CMU on the oral environment in the elderly. Conclusions: Research results on the role of probiotics in the oral cavity should be summarized, and utilization plans should be sought to obtain a clearer understanding of the clinical efficacy and related factors. The value of probiotic use may be high in improving the oral health of people by enabling treatment and prevention.
  • 21.

    Anticancer effect of methanol extract of Erigeron bonariensis on oral cancer cells

    Boonsil Jang | Sun-A Lim | 2020, 20(5) | pp.763~771 | number of Cited : 0
    Abstract PDF
    Objectives: Erigeron bonariensis is a type of Erigeron found throughout the tropical and subtropical areas as one of the perennial plants or pioneer plants. It is known to show detoxifying, antipyretic, and anticancer effects for various cancers. However, there are no reports on the anticancer effect of E. bonariensis on oral cancer cells. In the present study, we investigated the effects of the methanol extract of Erigeron bonariensis (MEEB) on the inhibition of cell growth and induction of apoptosis in mucoepidermoid carcinoma (MEC) cell lines, including the MC3 and YD15 oral cancer cells. Methods: MC3 Cells were treated by dimethyl sulfoxide (DMSO) or methanol extracts of 20 various natural products 20 μg/mL for 48 hours and cell viability were analyzed as Trypan blue exclusion assay. The effects of MEEB treatment on the cell viability of MC3 and YD15 cells, for 48 h, were analyzed by Trypan blue exclusion assay. The anticancer efficacy and apoptosis of oral cancer cell lines were analyzed by western blot analysis. The statistical significance of differences between groups was analyzed by Student’s two-tailed t-test. A value of P<0.05 compared to the vehicle control was considered statistically significant. Results: Among 20 different naturally derived products, MEEB significantly inhibited cell viability and increased cleaved poly [ADP-ribose] polymerase 1 (PARP) protein in the MC3 and YD15 cells in a concentration-dependent manner. Conclusions: These results suggest that MEEB can be used as a natural anticancer drug for the treatment of human oral cancer.
  • 22.

    Erratum : 임플란트 보유자의 진료기관 내 구강보건교육경험에 따른 구강건강관리 수준

    Jin-Sil Yu | Park Hye Young | Hye Jeong Bok and 2other persons | 2020, 20(5) | pp.773~773 | number of Cited : 0
    Abstract PDF
    변경전(Before correction) Hye-Jung Bok 변경후(After correction) Hye-Jeong Bok