• Imaging Science in Dentistry
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• 제54권1호
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• pp.49-56
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• 2024

Purpose: This study evaluated the impact of artifacts generated by metal crowns on the detection of proximal caries lesions in teeth at various distances using cone-beam computed tomography (CBCT). Additionally, the diagnostic impacts of tube current and metal artifact reduction (MAR) were investigated. Materials and Methods: Thirty teeth were arranged within 10 phantoms, each containing 1 first premolar, 1 second premolar, and 1 second molar. A sound first molar (for the control group) or a tooth with a metal crown was placed. Of the 60 proximal surfaces evaluated, 15 were sound and 45 exhibited enamel caries. CBCT scans were acquired using an OP300 Maxio unit (Instrumentarium, Tuusula, Finland), while varying the tube current (4, 8, or 12.5 mA) and enabling or disabling MAR. Five observers assessed mesial and distal surfaces using a 5-point scale. Multi-way analysis of variance was employed for data comparison, with P<0.05 indicating statistical significance. Results: The area under the curve (AUC) varied from 0.40 to 0.60 (sensitivity: 0.28-0.45, specificity: 0.44-0.80). The diagnostic accuracy was not significantly affected by the presence of a metal crown, milliamperage, or MAR(P>0.05). However, the overall AUC and specificity were significantly lower for surfaces near a crown (P<0.05). Conclusion: CBCT-based caries detection was not influenced by the presence of a metal crown, variations in milliamperage, or MAR activation. However, the diagnostic accuracy was low and was further diminished for surfaces near a crown. Consequently, CBCT is not recommended for the detection of incipient caries lesions.

• 한국치위생학회지
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• 제19권6호
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• pp.951-961
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• 2019

Objectives: This study aims to evaluate how the amount and duration of smoking effects the bleeding and pain of gingival among adolescents in Korea while also taking into consideration the impact of drinking. Methods: Data were utilized from a web-based survey of youth health behaviors conducted by the Korean Center for Disease Control and Prevention in 2016. The subjects of the study included 65,528 adolescents from middle and high schools. As dependent variables, bleeding and pain of gingival were used. Data were analyzed using the SPSS Version 20.0 program. Results: After adjusting for the general characteristics and oral health behaviors of the subjects, in the long-term, the ≥0.52 PY group (heavy smoker) experienced 1.28 times higher bleeding and pain of gingival than the <0.52 PY group (light smoker) among adolescents who smoke and drink at the same time. Adolescents who smoked without drinking did not show any difference on bleeding and pain of gingival according to the amount of smoking in the short- and long-term. However, the findings reveal that there was a difference on bleeding and pain of gingival according to tooth brushing frequency. Conclusions: In order to promote the periodontal health of adolescents, it is argued that programs and projects should be implemented to prevent, educate, and control simultaneous behaviors of smoking and drinking.

• 한국치위생학회지
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• 제16권3호
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• pp.409-415
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• 2016

Objectives: The purpose of the study is to investigate the correlation between stress and oral health in some high school students. Methods: The subjects were 224 students from three high schools in Daejeon, Daecheon, and Incheon. from November to December, 2015. A self-reported questionnaire was filled out from November to December, 2015. The questionnaire consisted of general characteristics of the subjects, awareness toward stress, stress-coping pattern, oral health-related quality of life and oral health care. Data were analyzed by SPSS 18.0 program. Results: In the analysis of academic stress level by the general characteristics and stress level, higher stress group showed higher experience in stress expectation(high group 16.43, subgroup 9.21), internal stress(high group 13.97, subgroup 6.16), expression type stress(high 10.06, sub-4.95). The higher stress group had emotional stress management in stress-coping pattern and less experience in difficulty of tooth brushing, chewing discomfort, and oral health-related quality of life management(p<0.001). Conclusions: The stress had a negative impact on the oral health related quality of life. The high school students should be able to manage the physical and mental stress. It is necessary to provide the continuous oral health care management against the stress by the dental hygienists.

• Journal of Periodontal and Implant Science
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• 제44권1호
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• pp.20-24
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• 2014

Purpose: The aim of this clinical trial was to explore the impact of intentional passive eruption (IPE) using occlusal reduction on the periodontal parameters of teeth with moderate chronic periodontitis and traumatic occlusion. Methods: This study was performed on 40 teeth from 16 subjects. At baseline, 4 weeks after initial periodontal treatment, and 6 months after IPE, clinical and radiographic examinations were performed. The 20 teeth in the test group underwent IPE using occlusal reduction, whereas the 20 control teeth did not undergone occlusal reduction. Results: All the periodontal parameters were improved by the initial periodontal treatment. The teeth in the test group showed a significantly greater decrease in pocket depth, tooth mobility, and marginal bone loss than did the control group (P<0.05), but there were no significant changes in the attachment level. Significantly greater improvements in all the parameters were observed in the test group after 6 months of IPE compared to 4 weeks after the initial periodontal treatment (P<0.05). Conclusions: Within the limits of this study, performing initial periodontal therapy combined with IPE using occlusal reduction was shown to be very simple and effective. Moreover, IPE would be helpful in improving periodontal parameters.

• 한국축산식품학회지
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• 제37권3호
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• pp.449-455
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• 2017

Chocolate milk is one of the most commonly used non-fermentative dairy products, which, due to high level of sucrose, could lead to diabetes and tooth decay among children. Therefore, it is important to replace sucrose with other types of sweeteners, especially, natural ones. In this research, response surface methodology (RSM) was used to optimize the ingredients formulation of prebiotic chocolate milk, date syrup as sweetener (4-10%w/w), inulin as prebiotic texturizer (0-0.5%w/w) and carrageenan as thickening agent (0-0.04%w/w) in the formulation of chocolate milk. The fitted models to predict the variables of selected responses such as pH, viscosity, total solid, sedimentation and overall acceptability of chocolate milk showed a high coefficient of determination. The independent effect of carrageenan was the most effective parameter which led to pH and sedimentation decrease but increased viscosity. Moreover, in most treatments, date syrup and inulin variables had significant effects which had a mutual impact. Optimization of the variables, based on the responses surface 3D plots showed that the sample containing 0.48% (w/w) of inulin, 0.04% (w/w) of carrageenan, and 10% of date syrup was selected as the optimum condition.

• 한국치위생학회지
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• 제16권1호
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• pp.93-101
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• 2016

Objectives: This study aims to analyze the factors influencing on the oral health-related quality of life of migrant women in multicultural families. Methods: An interview survey was conducted through the general characteristics, oral health behaviors, and OHIPs(oral Health Impact Profiles) of 200 migrant women in multicultural families registered in multicultural family support center in Pohang. The survey was carried out from March 2 to 29, 2011. Data were analyzed using SPSS version 18.0 program. by frequency analysis, chi-square test, t-test, ANOVA, and hierarchical regression analysis. Results: Oral health promotion behavior showed statistically significant differences(p<0.01) in the number of tooth brushing and in those using oral health care supplementary device by each country. The oral health-related quality of life was significantly influenced by economic compensation, pregnancy, and the economic status of the native country(p<0.05). Conclusion: The nationwide oral health policy should be established for migrant women in multicultural family.

• 한국치위생학회지
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• 제15권6호
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• pp.999-1007
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• 2015

Objectives: The objective of the study is to investigate oral health behavior and oral health education experience in Korean adolescents from the ninth(2013) web-based survey of Korean youth risk behavior. Methods: The subjects were 72,435 students through the ninth 2013 web-based survey of Korean youth risk behavior conducted by the Ministry of Education, Science, and Technology, the Ministry of Health and Welfare, and the Korea Centers for Disease Control. The questionnaire consisted of socio-demographical characteristics of the subjects, oral health behavior, and oral health education experience. Data were analyzed by SPSS 18.0 program. Results: Oral health education had much influence on tooth brushing after lunch, oral cavity disease prevention, sealants, fluoride application, scaling experience, and consumption of vegetables, milk, carbonated soft drinks, noodles, and snacks. The oral health education had a great impact on those who took good oral health behavior into action. Conclusions: It is very important and necessary to develop the continuing effective oral health education program for the adolescents and make them tale into action.

• Journal of Dental Anesthesia and Pain Medicine
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• 제23권6호
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• pp.337-346
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• 2023

Background: This study aimed to investigate the effect of local anesthesia (LA) on postoperative pain and hemostasis after dental rehabilitation under general anesthesia (DRGA) in pediatric patients. Methods: A total of 43 patients, aged 3-7 years and rated ASA I or II, who had a definitely negative rating on Frankel's behavior rating scale, were included in this two-arm, parallel-design, single-blinded, randomized, controlled study. The patients were allocated equally into two main groups receiving both restorative treatments and tooth extractions. Two pain scales and one bleeding scale were used. In Group A, the treatment was done with LA, and in Group B, the treatment was done without LA. Results: The statistical analysis revealed no significant differences in the pain scores between the groups. It also revealed significant differences in the bleeding scores between the groups but no significant differences in the duration of bleeding. Conclusion: Within the limitations of this study, the use of LA in pediatric dental patients undergoing DRGA had no effects on postoperative pain reduction or bleeding duration after teeth extraction. We also observed that the use of LA had an impact on the reduction in the bleeding scores in pediatric dental patients undergoing DRGA.

• 한국콘텐츠학회논문지
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• 제16권8호
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• pp.81-89
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• 2016

본 연구는 임신부의 구강건강상태와 구강건강행태에 따른 구강건강관련 삶의 질에 미치는 영향을 파악하여 조사해 그 결과를 분석하였다. 본 연구는 2014년6월23일~7월30일까지 전라북도 일부지역 임신부 127명을 대상으로 자기기입식 설문조사를 실시하였다. 자료는 PASW Statistics 18.0을 사용하여 주요 측정변수에 대한 Shapiro-Wilk 정규성을 검정하였다. 대상자의 주관적 구강건강상태, 구강건강관심도는 임신기간에 따라 유의한 차이가 있었다. 조사대상자의 46.5%가 자신이 '건강하다'고 느끼고 있으며 51.2%가 자신의 구강건강상태가 '건강하다'고 응답했고, 57.5%가 자신의 구강건강에 관심이 '있다'고 응답했다. 구강건강행태에 따른 삶의 질은 구강보건교육경험이 없는 경우, 칫솔질 횟수가 3회 이하인 경우, 정기적으로 검진을 받지 않은 경우, 치석제거 경험이 없는 경우 삶의 질이 낮게 나타났다. OHIP-14에 유의한 영향변수는 임신 기간이 길수록, 분만경험이 없고, 주관적 건강상태, 주관적 구강건강상태가 건강하지 않을수록 구강건강관련 삶의 질이 낮은 것으로 나타났다. 본 연구를 통해 임신부의 구강건강관련 삶의 질은 주관적으로 인지하는 구강건강 상태와 구강건강행태가 밀접한 연관이 있으므로 이를 개선하기 위한 구강보건교육 프로그램 개발이 필요할 것으로 사료된다.

• 치위생과학회지
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• 제9권4호
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• pp.475-483
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• 2009

한국 노인을 대상으로 외국에서 비교적 높은 신뢰도와 타당도가 입증된 Oral Health Impact Profile 14(OHIP 14)를 한국의 문화적 특성이나 사고방식에 맞게 번역하여 강릉시에 거주하는 노인 만 65세 이상 668명을 대상으로 2005년 1월부터 2월까지 2개월간 OHIP 14 지표의 신뢰도와 타당도를 검증(Kappa index, Cronbach's alpha Correlation & Spearman ranked correlation coefficient)하고, OHIP 14와(구강)건강인식도, 구강건강상태, 전신건강 상태와의 차이를 검증(Kruskal Wallis test, Mann-Whitney U-test)함으로써, 향후 우리나라 노인 구강건강문제를 포괄적으로 파악하기 위한 지표로 활용할 수 있는 지를 검토하고자 하였다. 1. (구강)건강인식도와 OHIP 14는 전신건강인식도, 구강건강인식도, 치과치료필요도, 구강건강만족도, 통증에 대한 시각적 정도, 틀니만족도, 구강건강상태와 OHIP 14는 무치악 여부, 현존 자연치아의 개수, 치아치료필요, 전신건강상태와 OHIP 14는 질병의 개수, 치매, 눈, 귀, 호흡기, 심혈관, 소화기, 비뇨생식기, 근골격계, 신경계, 심리상태가 상관관계가 있는 것으로 나타났다. 2. (구강)건강인식도에 따른 OHIP 14는 전신건강인식도, 구강건강인식도, 치과치료필요도, 구강건강만족도, 통증에 대한 시각적 정도, 틀니만족도, 구강건강상태에 따른 OHIP 14는 무치악 여부, 치아치료필요, 현존 자연치아의 개수, 전신건강상태에 따른 OHIP 14는 치매, 귀, 호흡기, 심혈관, 소화기, 근골격계, 신경계, 심리상태에서 현저한 차이를 보였다. 본 연구는 일부 노인에서 임상지표를 이용한 OHIP 14에서 (구강)건강인식도, 구강건강상태, 전신건강상태가 OHIP 14와의 타당도와 연관성이 있다는 사실을 일부에서 확인할 수 있었다. 이상의 결과로 향후 한국노인의 구강건강문제를 포괄적으로 파악하는데 전통적인 구강건강 상태검사, 전신건강상태검사와 더불어 '구강건강 관련 삶의 질' 지표인 OHIP 14를 활용할 수 있을 것으로 사료된다.