JKAOH Journal of Korean Academy of Oral Health

ISSN(Print) 1225-388X ISSN(Online) 2093-7784

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  • Editorial 2020-03-30

  • Original Article 2021-06-30

    Factors of unmet dental care needs among elderly living alone

    Jun Ha Kim , So Yeong Kim , Kyung Hee Jo , Ye Rim Kim , Mijin Choi

    Abstract : Objectives: The purpose of the study was to investigate the factors affecting unmet dental care needs among elderly living alone. Methods: The study subjects were 19,019 elderly living by themselves, who participated in the Korea Community Health Survey 2018 (KCHS, 2018). The data were analyzed using frequency analysis, Rao-Scott chi-square test, t-test, and binary logistic regression analysis, using the SAS 9.4 software. Results: Results from the multiple logistic regression analysis revealed a higher odds ratio (OR) for unmet dental care needs among those with a monthly household income below KRW 1,000,000 (OR=1.64, 95% confidence interval, 95%CI=1.39-1.92), compared to those with an income of above KRW 2,000,000. With regards to stress levels, unmet dental care needs were more prevalent among participants in the "stress moderate" (OR=1.19, 95% CI=1.06-1.33) and "stress" groups (OR=1.68 95% CI=1.48-1.92), compared to the "no stress" group. Furthermore, the OR for unmet dental care needs was significantly higher among participants in the "depression" group (OR=1.84, 95% CI=1.61-2.11) than the "no depression" group. Conclusions: Higher unmet dental care needs were found among participants in the low monthly household income, stress, and depression groups. Further study is needed to analyze the association between factors and needs related to unmet dental care.

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  • Editorial 2021-03-30

  • Original Article 2021-06-30

    Status of caries in permanent teeth of the adolescent in Ansan city after the suspension of the community water fluoridation program

    Jae-In Ryu , Se-Hwan Jung , Sae-Rom Lee , A-Rang Lim

    Abstract : Objectives: Community Water Fluoridation (CWF) was suspended in Ansan city in 2018. The purpose of this study was to inspect the status of caries in the permanent teeth of adolescents and suggest the index as the baseline for cohort study in the CWF suspended area. Methods: Oral examinations and questionnaire surveys were conducted on adolescents aged 12 years. Of 1,479 individuals, 890 (60.2%) consented to the examinations. Frequency and logistic regression analyses were used to investigate the status of permanent dental caries by demographic, sociological, and health behavioral characteristics. The study was conducted with approval from IRB Kyung Hee University. Results: The findings reveal gaps in the prevalence of caries among the study sample according to demographic, sociological and health behavioral factors. Rates of untreated caries were higher among adolescents who stayed in the area for a lesser duration, had foreign parents, or had cariogenic drinks more often (p

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  • Original Article 2021-06-30

    Antibacterial effect of mouthwash containing CPC against dental caries caused bacteria

    Won-Ho Cho , Ja-Won Cho , Hyun-Jun Yoo , Kyong-Hoon Shin , Gi-Hae Shin , Yeol-Mae Jeon , Jong-Cheon Lee

    Abstract : Objectives: The purpose of this study was to evaluate and report the antibacterial efficacy in relation to oral disease-causing bacteria using a mouthwash containing 0.05% CPC in an in vitro test. Methods: The sterilization test and susceptibility assay of mouthwash containing 0.05% CPC were investigated against Streptococcus mutans, Streptococcus sobrinus, and Lactobacillus acidophilus; Streptococcus sanguinis as oral bacteria related to dental caries; Enterococcus faecalis as apical periodontitis-related bacteria; and Actinomyces israelii, Aggregatibacter actinomycetemcomitans, Fusobacterium nucleatum, Prevotella intermedia, Prevotella nigrescence, Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola, and Filifactor alocis as periodontal disease-related bacteria. Results: In the sterilization test, most of the bacteria had more than 99.99% sterilizing power for all samples but compared to other bacteria, the sterilizing power of these samples was not successful for L. acidophilus and E. faecalis bacteria. When comparing the sterilization power between the samples, sample 3 (0.05% CPC+20% ethanol) was the strongest. Conclusions: In the antimicrobial activity test, sample 3 inhibited growth at the lowest concentration overall.

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  • Original Article 2021-06-30

    2019 Laos children’s dental caries experience survey

    Chae-Young Rhee , Ja-Won Cho , Hyun-Jun Yoo , Nitthasack Phommavongsa , Yong-Su Ahn , Hyung-Suk Oh

    Abstract : Objectives: The aim of this study was to determine the dental caries experience of children in Laos. Methods: Oral examinations were performed on a total of 1,540 students in 513 primary school students, 537 middle school students, and 490 high school students and the results analyzed. Results: The dft index (decayed-filled primary teeth index) of 6-year-old primary school children was 6.04. The DMFT index (decayed-filled-missing permanent teeth index) was 1.59 in 12-year-old middle school children and 2.04 in 15-year-old middle school children. Conclusions: Caries experience in most of the age groups was on the high side. It is considered that in Laos, a treatment project to stop the progression of caries is necessary in parallel with a prevention project to lower the caries fatality rate.

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  • Original Article 2021-06-30

    A qualitative study on the evaluation of the registered dentists’ program of dentists

    Jae-In Ryu , Hyang-Ah Park , Sun-Jang Lee , Ji-Eun Jeon

    Abstract : Objectives: This study aimed to evaluate the registered dentists' program, from the dentist's perspective, before its nationwide implementation. Methods: In-depth interviews were conducted with 18 dentists who had participated in the registered dentists' program in G Province. A questionnaire was prepared based on previous research. The data were collected by transcription of interview recordings. Qualitative research methodology was implemented and the data were coded according to the grounded theory. A paradigm model was presented and the core categories were indicated. Results: The findings were organized into 6 categories, 25 subcategories, and 315 codes, based on open coding of the first categorization of collected data. The central phenomenon was found to be the experience of dissatisfaction with the program. The causal conditions were shown as problems of the program, while contextual and intervening conditions were shown as passive participation of dentists and positive effects of the program, respectively. The action/interaction strategies were summarized as an improvement plan and the consequence was an increased intention to participate. Conclusions: The study proposes the need to strengthen primary dental care through this registered dentists' program, by performing continuous evaluations. The standards and guidelines, cooperation of participants, and appropriate compensation should be considered to promote successful implementation.

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  • Original Article 2021-09-30

    Factors affecting job satisfaction of dental hygienists related to foreign dental health services

    Myeonghwa Park , Sang-Im Lee , Jae-Young Lee , Jong-Hwa Jang

    Abstract : Objectives: This study aimed to determine the relationship between English communication ability and job satisfaction of dental hygienists involved in the process of providing dental health services to foreigners and to analyze factors related to job satisfaction. Methods: Both online and offline surveys were conducted in parallel to measure English communication competency and job satisfaction. Participants were 195 clinical dental hygienists provided dental health services to foreigners. Spearman’s rho analysis was performed on the correlation between English communication ability, and job satisfaction, and a stepwise multiple regression analysis was performed on the factors related to the job satisfaction of the dental hygienist. Results: The job satisfaction of dental hygienists was 2.99 point out of 5 points. There was a strong positive relationship between English communication ability and english communication frequency (r=0.682), and the higher the English communication ability, the higher the job satisfaction (r=0.357). Factors affecting job satisfaction were English communication ability (β=0.378, P

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  • Original Article 2021-09-30

    Effect of fermented milk product on composite resin surface

    Young-Seon Kim , Ji-Eun Kim , Ki-Ho Chung , Choong-Ho Choi

    Abstract : Objectives: The present study was carried out to identify the effects of commercially available fermented milk on the surfaces of composite resins. Methods: The experiment included 6 groups: Fermented milk (Group 3), fermented milk supplemented with 3% calcium (Group 4), specimens coated with fluoride and then treated with fermented milk (Group 5), specimens coated with fluoride and then treated with fermented milk supplemented with calcium (Group 6), mineral water (Group 1), and carbonated beverage (Group 2). The prepared specimens were immersed in the experimental solution to analyze the effects of the test fluid on the surfaces of the composite resin specimens. The degree of microhardness on each specimen surface was subsequently measured. The results were obtained using scanning electron microscopy. Results: The pH values of the experimental solutions in an increasing order were: Group 2 (2.34 ±0.08), Group 3 and Group 5 (3.45±0.03), Group 4 and Group 6 (4.04±0.06), and Group 1 (7.72 ±0.17). Significant differences in the Vickers hardness number (△VHN) were found between the groups when measured before and after immersion in the experimental solution in the following order: -11.48±1.45 (Group 2), -9.54±1.15 (Group 3), -9.21±1.21 (Group 4), -8.14±0.84 (Group 6), -8.10±0.92 (Group 5), and -1.71±0.57 (Group 1) (P<0.05). Scanning electron microscopy findings of the composite resin surfaces in Groups 5 and 6 revealed smooth surfaces similar to those in Group 1 ( negative control). In contrast, Groups 3 and 4 showed rough surfaces with severe cracks between the crystals, similar to those of Group 2 (positive control). Conclusions: The intake of fermented milk may attenuate the surface microhardness of composite resins. To slow down the reduction in microhardness following fermented milk consumption, coating the composite resin surfaces with fluoride and adding calcium supplement to the fermented milk could be considered.

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  • Original Article 2021-09-30

    A study on the Korean dental education system II: the need for integrated education system

    Yoon Min Gil , Jihyun Lee , Ho-Beom Kwon , Sun-Young Kim , Ryan Jin Young Kim , Shin-Young Park , Youngha Song , Shin Hye Chung , Young-A Ji

    Abstract : Objectives: With the rapid changes in society, there are more arguments for redefining dental education system. This study aimed to review and analyze the problems in the current dental education system in Korea and then propose an integrated education system based on those findings. Methods: A narrative review of the problems confronting the dental education system in Korea was carried out. Accordingly, full-text screening and specialists’ discussions were extracted from the review. The purpose of the review was to summarize the strengths and weaknesses of Korean dental education systems to offer perspectives on an integrated education system in accordance with the specialists’ opinions. Results: The results revealed that the problems of the current dental education system were identified in clinical education, basic science, and humanities and social sciences. Dental schools should provide clinical education so that dental students can be exposed to the clinical environment at an early stage and perform patient-based clinical practice. It is also imperative to encourage participation in research programs to train dental scientists, as well as to reflect on courses that can adapt to changes brought about by new technologies. It is recommended that education opportunities for integrated humanities and social sciences be provided. Conclusions: It will be critical in the future for dental schools to embrace a flexible education system from various perspectives. It is vital that dental schools play a role in developing students’ critical thinking, problem-solving, and decision-making skills. Finally, as part of an integrated education system, an improvement program should be devised.

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December, 2021
Vol.45 No.4

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JKAOH Journal of Korean Academy of Oral Health
ISSN(Print) 1225-388X ISSN(Online) 2093-7784