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대한예방치과·구강보건학회> 대한구강보건학회지

대한구강보건학회지 update

Journal of Korean Academy of Oral Health

  • : 대한예방치과·구강보건학회
  • : 의약학분야  >  기초치의학
  • : KCI등재
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  • : 연속간행물
  • : 계간
  • : 1225-388x
  • : 2093-7784
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수록범위 : 1권1호(1967)~45권4호(2021) |수록논문 수 : 1,698
대한구강보건학회지
45권4호(2021년 12월) 수록논문
최근 권호 논문
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KCI등재

1메타버스와 구강보건학의 변화

저자 : 조현재 ( Cho Hyun-jae )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 45권 4호 발행 연도 : 2021 페이지 : pp. 175-176 (2 pages)

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2과일소주가 초기 우식치면에 미치는 영향

저자 : 이수나 ( Su-na Lee ) , 김나영 ( Na-yeoung Kim ) , 김지은 ( Ji-eun Kim ) , 최충호 ( Choong-ho Choi ) , 정기호 ( Ki-ho Chung )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 45권 4호 발행 연도 : 2021 페이지 : pp. 177-183 (7 pages)

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Objectives: The purpose of this study was to evaluate the tooth erosion potential of liqueur and to confirm the anti-erosive effect of calcium.
Methods: After purchasing commercially available liqueur in Korea and measuring the pH, products with low pH and high consumption were selected and used as experimental beverages. Calcium (1%) was added to the selected beverages. Chamisul was used as a negative control, and Coca Cola was used as a positive control. Healthy bovine teeth samples were soaked in the selected beverages for 1, 3, 5, 10, 15, and 30 minutes. The changes in the tooth surface after beverage treatment were observed and analyzed using microhardness (VHN, Vickers hardness number) and scanning electron microscopy.
Results: Jinro Grapefruit (-88.03±13.05) had the highest surface microhardness difference (ΔVHN) before and after 30 minutes of treatment in each group, followed by Coca Cola (-61.31±21.90) (P< 0.05), Jinro Grapefruit+Calcium (there was no significant difference (-25.46±4.43)), and Chamisul (-3.53±27.79) (P >0.05). When comparing changes in surface microhardness over time, Jinro Grapefruit+Calcium (pH 3.75) had slightly lower surface microhardness than Chamisul, but the difference was not statistically significant. Jinro Grapefruit+Calcium has a lower surface microhardness change value than Coca-Cola and grapefruit dew group (P<0.05), so it is thought that the risk of tooth erosion is lower than that of the two groups.
Conclusions: The study results suggest that the consumption of liqueur with a low pH may increase the risk of tooth decay. Therefore, it is necessary to recognize the risk of tooth decay when ingesting liqueur and seek dietary guidance that can minimize damage. It was also determined that manufacturers need to consider ways to lower the risk of tooth decay, such as adding appropriate amounts of calcium to the beverages.

KCI등재

3센텔라 정량추출물 및 질산칼륨, 글리시리진산이칼륨 함유 치약의 구강환경 개선효과에 관한 연구

저자 : 이금선 ( Keum-sun Lee ) , 김다희 ( Da-hui Kim ) , 조자원 ( Ja-won Cho ) , 김찬호 ( Chan-ho Kim ) , 이진영 ( Jin-young Lee ) , 박지현 ( Ji-hyun Park )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 45권 4호 발행 연도 : 2021 페이지 : pp. 184-191 (8 pages)

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Objectives: This study aimed to evaluate the effect of detergents containing a centella quantitative extract and dipotassium glycyrrhizinate and potassium nitrate on patient hygiene performance index, gingivitis index, gingival bleeding index, EPT, and halitosis.
Methods: A parallel comparison, randomized, double-blind, controlled trial was conducted for 8 weeks with 60 adult men and women as participants.
Results: According to the PMA index, gingival index of Talbott, gingival hemorrhage index, Turesky's plaque index, and bad breath measurement, there was a statistically significant difference between the experimental group and the control group after 4 weeks (P<0.05).
Conclusions: It was confirmed that the bad breath reduction effect, gingival bleeding improvement effect, gingivitis inflammation effect, removal of the gingival microbial membrane, and syringin can be expected to relieve symptoms.

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4코로나19 상황이 대학생들의 구강건강행태 및 구강증상에 미치는 영향

저자 : 박지혜 ( Ji-hye Park ) , 장지언 ( Ji-eon Jang ) , 최연희 ( Youn-hee Choi )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 45권 4호 발행 연도 : 2021 페이지 : pp. 192-197 (6 pages)

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Objectives: The outbreak of coronavirus disease 2019 (COVID-19) has affected the lifestyle of the public, which also holds true for oral health. This study thus aimed to elucidate the effects of wearing a mask due to COVID-19 on oral health behavior and oral symptoms in young adults from South Korea.
Methods: A total of 285 university students (mean age 23.4 years; 64.9% men and 35.1% women) responded to a web-based survey. A paired t-test was conducted to identify changes in oral health behaviors before and after the COVID-19 pandemic.
Results: The frequency of toothbrushing (P =0.009), dental flossing (P<0.001), and interdental brushing (P =0.019) increased slightly after the pandemic.
Conclusions: Our findings indicate that young adults are more concerned about oral hygiene after the pandemic.

KCI등재

5코로나바이러스-19가 치과기공사에게 미치는 영향

저자 : 배은정 ( Eun-jeong Bae )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 45권 4호 발행 연도 : 2021 페이지 : pp. 198-203 (6 pages)

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Objectives: The purpose of this study is to investigate the impact of COVID-19 on dental technicians and dental laboratories.
Methods: In June 2020, self-reported questionnaires were distributed to and completed by dental technicians who attended the Seoul Dental Technologist Association's academic conference (n=210). The responses were cross analyzed with frequency analysis (α=0.05).
Results: Due to COVID-19, the number of employees has decreased to less than 20%, and sales of dental laboratories have decreased by 21-40%. On the Likert 5-point scale for individual precautions, 'I wear a mask when using public transportation' was the highest at 4.80. If infected with COVID-19, 'my family's infection is most concerned' was the highest 3.89, but there was no significant difference between having children under the age of 13 in the family and having an elderly family over 65 years old (P>0.05).
Conclusions: To prevent infection by dental technicians, it is mandatory to check body temperature when going to work and refrain from eating while working. As COVID-19 continues for a long time, it is necessary to continuously investigate the status of infected persons among dental technicians and vaccination rates as health care workers.

KCI등재

6구강 바이오필름에 대한 피톤치드의 항균능력

저자 : 김민정 ( Min-jeong Kim ) , 이명구 ( Myung-gu Lee ) , 이준행 ( Joon-haeng Lee ) , 전열매 ( Yeol-mae Jeon ) , 유현준 ( Hyun-jun Yoo )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 45권 4호 발행 연도 : 2021 페이지 : pp. 204-209 (6 pages)

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Objectives: This study aimed to evaluate the antibacterial activity of phytoncide on oral biofilm.
Methods: Antibacterial activity of phytoncide was examined on the bacteria Streptococcus mutans, Aggregatibacter actinomycetemcomitans, Enterococcus faecalis, Porphyromonas gingivalis, and oral biofilm. After mixing the phytoncide, S. mutans, A. actinomycetemcomitans, E. faecalis, and P. gingivalis with a culture alone turbid and mixed, and they were then incubated at 37°C under anaerobic conditions and cultured. Following incubation, a microplate reader was used to measure the absorbance and observe the amount of bacteria. In addition, non-polarized saliva containing bacteria was grown for 72 h under anaerobic conditions for the determination of biofilm biomass and bacterial numbers. Various concentrations of phytoncide were added to the saliva biofilm. Statistical significance tests were conducted using the Mann-Whitney test and SPSS 24.0.
Results: S. mutans, A. actinomycetemcomitans, E. faecalis, P. gingivalis, and antibacterial effects were shown as phytoncide concentrations increased in oral biofilm. Observing the growth of bacteria using phase difference microscopes showed that the number of bacteria decreases as the phytoncide concentration increased. Also, the formation of biofilm in the saliva decreased compared to the control group.
Conclusions: Based on the experimental results of phytoncide on oral biofilms causing oral cavity formation in the saliva decreased compared to that in the control group. Phytoncide showed antibiosis against oral biofilms when it remained inside the mouth for above certain concentrations. Accordingly, using phytoncide as a clinical method for preventing oral disease is deemed to be effective.

KCI등재

7학교 내 칫솔질 환경 구축이 초등학교 고학년 아동의 구강건강 및 습관에 미치는 효과

저자 : 좌수경 ( Su-kyung Jwa )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 45권 4호 발행 연도 : 2021 페이지 : pp. 210-217 (8 pages)

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Objectives: This study aimed to provide basic data on the establishment of tooth brushing classrooms in elementary schools in South Korea. The basic data was gathered by investigating the upper-grade children's oral health and brushing habits according to the tooth brushing environment in their respective elementary schools.
Methods: A researcher compared the changes in dental caries and oral hygiene status with the Repeated Measure ANOVA in 137 elementary school students from three elementary schools.
Results: The results of oral hygiene status, the Gingivitis Index, the use of the tooth brushing facility, and the number of times students brushed their teeth each day were all compared for all three years of the study. Group A (classroom-type), with a classroom-style tooth brushing facility next to the cafeteria, showed more improvement than Groups B (new classroom-type) and C (corridor-type).
Conclusions: In order to make tooth brushing a habit, the tooth brushing facility should be constructed in the form of a classroom with good accessibility to the cafeteria. An active and practical form of education will need to be provided by the school teacher to help children form this habit.

KCI등재

8치주 영역에서 오렌지 데이터마이닝을 활용한 랜덤 포레스트 모델의 단계별 안내

저자 : 임회정 ( Hoi-jeong Lim )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 45권 4호 발행 연도 : 2021 페이지 : pp. 218-226 (9 pages)

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Objectives: The purpose of this study was to show a procedure for a random forest (RF) analysis which predicts periodontal disease status by using R and Orange Data Mining software, and helps us to understand how to apply the RF technique for dental research.
Methods: Oral examination data of the 7th Korea National Health and Nutrition Examination Survey were used. A RF model was adopted to analyze the data where the target variable was periodontal disease status and the features were gender, age, education level, marital status, alcohol consumption level, smoking status, brushing before sleep, hypertension, and diabetes-related variables.
Results: The important features of the RF analysis were in the order of age, marital status, and prevalence of hypertension and diabetes. The accuracy of the RF analysis was 73% which is not high enough for use in the clinical field.
Conclusions: The RF technique is an ensemble method used to predict periodontal disease status which produces higher accurate outputs than a single method. This study provides a step-by-step guide using Orange Data Mining for researchers who want to study machine learning techniques.

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9VGG-16 딥러닝 알고리즘을 활용한 우식치아와 건전치아 분류

저자 : 변민지 ( Min-ji Byon ) , 전은주 ( Eun-joo Jun ) , 김지수 ( Ji-soo Kim ) , 황재준 ( Jae-joon Hwang ) , 정승화 ( Seung-hwa Jeong )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 45권 4호 발행 연도 : 2021 페이지 : pp. 227-232 (6 pages)

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Objectives: Diagnosis of dental caries is based on the dentist's observation and subjective judgment; therefore, a reliable and objective approach for diagnosing caries is required. Intraoral camera images combined with deep learning technology can be a useful tool to diagnose caries. This study aimed to evaluate the accuracy of the VGG-16 convolutional neural network (CNN) model in detecting dental caries in intraoral camera images.
Methods: Images were obtained from the Internet and websites using keywords linked to teeth and dental caries. The 670 images that were obtained were categorized by an investigator as either sound (404 sound teeth) or dental caries (266 dental caries), and used in this study. The training and test datasets were divided in the ratio of 7:3 and a four-fold cross validation was performed. The Tensorflow-based Python package Keras was used to train and validate the CNN model. Accuracy, Kappa value, sensitivity, specificity, positive predictive value, negative predictive value, ROC (receiver operating characteristic) curve and AUC (area under curve) values were calculated for the test datasets.
Results: The accuracy of the VGG-16 deep learning model for the four datasets, through random sampling, was between 0.77 and 0.81, with 0.81 being the highest. The Kappa value was 0.51- 0.60, indicating moderate agreement. The resulting positive predictive values were 0.77-0.82 and negative predictive values were 0.80-0.85. Sensitivity, specificity, and AUC values were 0.66-0.74, 0.81-0.88, and 0.88-0.91, respectively.
Conclusions: The VGG-16 CNN model showed good discriminatory performance in detecting dental caries in intraoral camera images. The deep learning model can be beneficial in monitoring dental caries in the population.

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10시판 석류음료가 치아 법랑질 표면에 미치는 영향

저자 : 정가영 ( Ka-young Jung ) , 김지은 ( Ji-eun Kim ) , 최충호 ( Choong-ho Choi )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 45권 4호 발행 연도 : 2021 페이지 : pp. 233-238 (6 pages)

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Objectives: This study examines the pH and titratable acidity of pomegranate drinks sold in Korea to identify the risk of dental erosion, and to provide basic data for oral health when consuming such drinks.
Methods: The experiment included 5 groups: As experimental drinks, Sunkist pomegranate (Group A), Beauty liked pomegranate (Group B), Pomegranate juice 100 (Group C) were selected, and Jeju Samdasoo and Coca-Cola were selected for negative and positive controls. The components of the experimental beverage were analyzed, and the degree of erosion was measured using the Vickers hardness number (VHN) and by scanning electron microscope images.
Results: When comparing the surface microhardness before and 30 minutes after beverage immersion, there was a significant difference in the positive control group, Group A, Group B, and Group C (P< 0.05), while there was no significant difference in the negative control group (P >0.05). The difference in surface microhardness (ΔVHN) was found in Group C (-117.33±17.41), Group A (-112.90±15.19), the positive control group (-103.80±13.23), Group B (-90.82±24.60), and the negative control group (-13.44±14.60), in that order. The positive control group, Group A, Group B, and Group C showed a significant difference from the negative control group (P<0.05), and Group B showed a significant difference from Group A, and Group C (P< 0.05), whereas Group A, Group B, and Group C did not differ significantly from the positive control group (P >0.05).
Conclusions: This study found that the low pH and high titratable acidity of commercially available pomegranate drinks can potentially cause dental erosion. Therefore, it is imperative to provide dietary guidance so that consumers can recognize the possibility of dental erosion when consuming pomegranate drinks and manage their oral health.

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