• 한국치위생학회지
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• 제20권3호
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• pp.243-256
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• 2020

Objectives: This study aimed to determine and facilitate provisions for the unmet dental needs of Koreans, stratified by time, influencing factors, and research trends, through a systematic review of related published studies since 2006. Methods: this review focused on previous studies published between January 2006 and November 2019 that analyzed influencing the factors underlying the unmet dental needs of koreans. We followed the guidelines set for each phase of research and selected the final 32 studies that met the selection criteria for the analysis. Results: The number of studies has rapidly increased since 2015 (22 studies, 68.7%). the were 68.9% in 2006, 25.9% in 2009, 41.3% in 2010- 2012, and 33.3% in 2013-2015 for adults and 27.9% in 2010, 24.6% in 2015, and 16.1% in 2017 for the rates of older adults. the rates of unmet dental needs related to economic factors, were 38.6% in 2006, 41.4% in 2007-2009, and 35.9% in 2013-2015 for adults and 50.5% in 2010 and 41.2% in 2015 for the older adults. There were common influencing factors for unmet dental needs. the rate of unmet dental needs was increased by with female gender, younger age, single marital status, low family income, low educational level, worsened subjective health condition, and the presence of chronic diseases. Conclusions: Standardized studies with more accurate definitions and assessment tools are required. however, our study emphasizes the need for a policy intervention that accounts for the characteristics of subjects to reduce unmet dental needs.

• 치위생과학회지
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• 제19권1호
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• pp.48-59
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• 2019

Background: The purpose of this study is to provide the data for discussions related to oral health promotion policies for single-person households by analyzing the status of unmet dental needs and related factors in single-person households in Korea, based on the Anderson model. Methods: The data, obtained from 544 single-person households of those over 20 years old who were targeted for the 6th Korea National Health and Nutrition Examination Survey, were analyzed through a complex sample frequency analysis, complex sample cross analysis (Rao-Scott chi-square test), and complex sample binary logistic regression analysis on a complex sampling design. Results: The most frequently given reason for an unmet dental need among single-person households was economic (52.4%). Factors related to the unmet dental needs of single-person households are smoking, which is a predisposing factor; personal income levels, which are an enabling factor; chewing discomfort; and limited daily activities, which are need factors. Smokers, the high-income group, the chewing-discomfort group, and the limited activity group showed high unmet dental care experience. Smokers had a 2.75 times higher rate of unmet dental care than non-smokers, and the high-income group had a 5.29 times higher rate of unmet dental needs than the median group. The rate of unmet dental needs for the chewing discomfort group was 3.27 times higher than the non-chewing discomfort group, and the limited activity group had a 7.87 times higher rate of unmet dental needs than the non-limited activity group. Conclusion: It is necessary to map out policies designed to help maintain and promote met dental needs considered to be internally heterogeneous to single-person householders, based on the Anderson model.

• 한국치위생학회지
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• 제20권6호
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• pp.809-817
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• 2020

Objectives: This study aimed to analyze the relationship between socioeconomic factors and the unmet dental care needs of the living alone and living with family elderly groups to confirm the differences in their influence. Methods: Data from the Korea Health Panel Study of 2016 were used to analyze a total of 4,987 individuals: 4,008 in living with family group and 979 in living alone group. Chi-square test and multiple logistic regression analyses were performed using SPSS Version 22 (p<0.05). Results: We observed that 16.5% and 28.3% of the participants from the living with family and living alone groups had unmet dental care needs, respectively, indicating that the living alone group had more unmet dental care needs. Income level, residential area, and healthcare security were significant factors related to the living with family group. In contrast, medical aid for healthcare security was a significant factor related to the living alone group (p<0.05). Conclusions: The results confirmed that socioeconomic factors that affect unmet dental care vary according to the living situation. Therefore, the government should identify the number of elderly individuals living alone, which is increasing annually. These individuals are vulnerable in almost all aspects, and the government should establish and implement appropriate oral healthcare policies to support them.

• Journal of Periodontal and Implant Science
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• 제53권4호
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• pp.283-294
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• 2023

Purpose: The aim of this study was to investigate the relationship between serum uric acid (SUA) levels and the risk of periodontitis in Korean adults using data from the Korean National Health and Nutrition Examination Survey (KNHANES). Methods: This cross-sectional study used data from the KNHANES 2016-2018 and analysed 12,735 Korean adults aged ≥19 years who underwent oral examinations. Hypouricemia was defined as SUA <3 mg/dL in men and <2 mg/dL in women, and hyperuricemia was defined as SUA ≥7 mg/dL in men and ≥6 mg/dL in women. Results: The weighted prevalence of hypouricemia and hyperuricemia was 0.6% and 12.9%, respectively. The overall weighted periodontitis rate was 30.5%. The frequency of periodontitis in subjects with hypouricemia, normouricemia, and hyperuricemia were 51.1%, 30.3%, and 30.6%, respectively. Study participants with hypouricemia were significantly older, had significantly fasting blood glucose levels, and had better kidney function than non-hypouricemic participants. In univariate logistic regression analyses, hypouricemia was associated with periodontitis, but hyperuricemia was not. The fully adjusted model revealed that the adjusted odds ratio of hypouricemia for periodontitis was 1.62 (95% confidence interval, 1.13-2.33), while the relationship between hyperuricemia and periodontitis in the multivariable logistic regression model was not significant. Conclusions: The results of this study suggest that hypouricemia is associated with an increased risk of periodontitis.

• 대한치과보철학회지
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• 제32권3호
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• pp.368-377
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• 1994

In order to investigate the oral health status including dental erosion, the authors had surveyed and oral examined 510 male workers, among whom 199 workers were exposed to acids and 311 were not exposed to acids, in a factory using acids during the period from November, 26 to 27 in 1992. The obtained results were as follows ; 1. The positive rate of dental erosion between the acid exposed and non-exposed group didn't show statistical difference. But the positive rate of degree 1 dental erosion by degree was statistically high in the acid exposed group(P<0.05). 2. The acid exposed group showed the higher positive rate of degree 1 dental erosion in lower incisors by site(P<0.01). 3. To the average number of eroded teeth, the acid exposed group showed more degree 1 eroded teeth in lower incisors than the non-exposed(P<0.05). 4. Although the rate of dental erosion was increased according to the increase in tenure in both exposed and non-exposed group(P<0.05), there was no difference in rate of the dental erosion by site among the same tenure group. 5. In the acid exposed group, the rate of dental erosion between protective mask wearer group and non-wearer group was not statistically different, but upper incisors of the protective mask wearer group showed lower rate of dental erosion by site(P<0.05). 6. The positive rate of periodontal diseases was higher in the acid exposed group(P<0.01).

• 한국치위생학회지
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• 제13권2호
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• pp.261-269
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• 2013

Objectives : This research examined the Patient Hygiene Performance(PHP) index according to smoking and tooth brushing behavior, in order to analyze how they influence the oral hygiene. Methods : This research used PHP index and the structured questionnaire. The subjects were 203 men in their 20's who visited K university's dental hygiene department for oral prophylaxis from March to July of 2012. For data analysis SPSS WIN 12.0 was used. Results : 1. The average PHP index of all experimented subjects was 2.66, a very poor level. The PHP index according to general characteristics, smoking, drinking, and exercise showed statistical significance(p<0.05). 2. PHP index decreased with more frequencies and longer durations of toothbrushing(p<0.05). 3. The PHP index of smokers is higher than that of non-smokers. In the case of non-smokers, the frequency, method, and duration of tooth brushing had a statistical significance(p<0.05). 4. The PHP index of smokers who smoke less than or equal to ten cigarettes is 2.53 and smokers who smoked more than 10 cigarettes is 3.10. 5. The results of multiple regression analysis showed that smoking increased the PHP index, while the increase in tooth brushing frequency and the up and down tooth brushing method decreased the PHP index. All the coefficients were statistically significant (p<0.05). Conclusions : In order to increase Patient Hygiene Performance(PHP) index. there must be a decrease in smoking rate while people increase their tooth brushing frequency and use a proper tooth brushing method.

• International Journal of Oral Biology
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• 제36권2호
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• pp.103-108
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• 2011

Measurement of estrogen concentration in bio-samples are very important for differential diagnosis of various disease or evaluation of health status. However, it is difficult to collect immediate data of estrogen concentration because they are measured by radioimmunoassay or chromatography which need time- and cost-consuming sample pre-treatment. This study was performed for development of new estrogen biosensor employing taste principles, and for evaluation of cross reactivity between various steroid hormones. Gene sequence of ligand binding domain of ${\alpha}$-human estrogen receptor (amino acid 302-553; hER-LBD) was cloned from human breast cancer cell line. The proteins of hER-LBD were produced by T7-E.coli expression system, and isolated by chromatography. hER-LBD were coated on the gold plated quartz crystal (AT-cut 9MHz), and resonance frequencies were measured by universal frequency counter. Estradiol, progesterone, testosterone, and aldosterone were used for cross reactivity of the hER-LBD. We also monitored influences of pH change in resonance frequency. The resonance frequencies of hER-LBD coated quartz crystal were decreased during increase of estrogen concentration from $15 \;{\mu}g/mL$ to $50\;{\mu}g/mL$. However, similar steroid hormones, progesterone and aldosterone, did not elicit the change in resonance frequency. Testosterone evoke weak change in resonance frequency. The new estrogen biosensor was more sensitive in pH 7.2 than in pH 7.6. These results suggest that hER-LBD coated quartz crystal biosensor is a probable estrogen biosensor.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제47권5호
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• pp.365-372
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• 2021

Objectives: Mandibular fractures vary significantly with respect to epidemiological and demographic parameters among populations. To date, no study has evaluated these aspects of mandibular fractures in Nuh, Mewat, Haryana, India. To retrospectively analyze the incidence, age and sex distributions, etiology, anatomic distribution, occlusal status, treatment modality provided, and their correlation in patients who suffered isolated mandibular fractures. Materials and Methods: The records of maxillofacial injury patients who reported to the Department of Dentistry, SHKM Government Medical College from January 2013 to December 2019, were retrieved from our database, and necessary information was collected. The data collected were analyzed statistically using IBM SPSS ver. 21. Results: Totals of 146 patients and 211 fractures were analyzed. There were 127 males and 19 females with an age range of 3-70 years (mean age, 26 years). Road traffic accident (RTA) was the most common cause of fracture (64.4%), followed by fall (19.9%), assault (15.1%), and sports injury (0.7%). Of all patients, 42.5% had bilateral fractures, 31.5% had left side fracture, 21.2% had right side fracture, 3.4% sustained midline symphyseal fracture, and 1.4% had symphyseal fracture along one side of the mandible. Site distribution was as follows: parasymphysis (34.6%), angle (23.7%), condyle (20.4%), body (12.8%), symphysis (4.3%), ramus 2.4%, and dentoalveolar 1.9%. The most common facture combination was angle with parasymphysis (17.8%). Occlusion was disrupted in 69.2% patients. Closed reduction was the predominant treatment modality. Conclusion: The data obtained from retrospective analyses of maxillofacial trauma increase the understanding of variables and their outcomes among populations. The results of the present study are comparable to those of the literature in some aspects and different in others.

• 대한치과기공학회지
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• 제19권1호
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• pp.175-184
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• 1997

본 연구는 아동기에 있는 자녀를 둔 부모들로서 치과의원을 내원한 진료환자 중 217명 대상으로 구강건강 실태에 대한 정도를 파악하여 구강보건 관리증진에 도움이 될 수 있는 기초자료 제공목적으로 조사한 바 그 결과를 요약하면 다음과 같다. 1. 구강보건에 관한 기초적 지식 중 유치갯수(20개)에 대한 인지도는 연령별로는 30대(47.6%)에서, 학력별로는 고졸(29.1%)에서 가장 높게 나타났으나 연령별, 학력별 통계상 유의성은 없는 것으로 나타났다. 2. 충치가 발생하는 원인으로 이를 잘 안 닦아서가 44.0%로 가장 많으며 그 다음으로 단 것을 많이 먹기 때문이라고 응답한 비율이 26.4%로 차지하고 있다. 충치예방법으로 불소치약 사용이 26.5%, 당분섭취 제한이 23.3%로 높게 나타났다. 3. 자녀의 치아건강을 위해서는 자주 이를 닦는 것이 중요하다는 빈도가 57.6% 가장 높게 나타나 치아건강에 있어 칫솔질의 중요성을 대부분이 인지하고 있는 것을 알 수 있다. 4. 충치의 보유실태에서는 자녀의 충치발생수가 45.8%로 나타났으며 연령이 적을수록 경험한 빈도가 높으며(P<0.05), 봉하거나 보철을 한 자녀가 84.7%로 나타나 자녀들의 치아건강 관리에 대해 부모들이 많이 신경을 쓰지 못하고 있음을 알 수 있다. 5. 자녀들에 대한 칫솔질 교육과 행동지도에서 잇솔질 시기는 만 2∼3세부터 시키는 것이 적당하다가 42.6%로 나타났으며 칫솔질은 스스로 하게끔 만든다가 80.6%로 통계적으로 유의하게 나타났다.(P<0.05) 6. 구강보건에 대한 정보의 습득경로는 매스컴이 38.95%로 가장 높게 나타났으며 구강보건 교육을 받지 못한 사람이 90.1%로 절대적으로 많았다. 지금까지 체계적인 구강보건 교육이 거의 없었으며 대중매체에 의한 단편적인 지식습득을 하고 있는 것으로 나타나 앞으로 체계적인 구강보건 교육을 통해 인지된 지식을 실천에 옮길 수 있도록 도와주는 일이 구강 보건 전문가들의 과제라 생각된다. 본 연구의 결과로 구강관리에 있어서 부모들의 지식과 실천이 자녀들에 있어 중요한 영향을 미치므로 부모들을 대상으로 체계적인 구강 보건 교육을 실시하는 것이 치과계의 중요한 과제라고 생각된다.

• 한국치위생학회지
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• 제22권4호
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• pp.231-240
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• 2022

연구목적: 본 연구는 국내에서 시판되고 있는 구강위생용품을 조사하고 구강위생용품에 함유된 불소 농도와 형태에 대한 정보를 제공하기 위해 시행하였다. 연구방법: 국내 시판 구강위생용품을 선택하여 총 67개를 오프라인 시장에서 구매하여 평가하였다. 연구결과: 국내 시판중인 치약 중 1,000 ppm의 불소 농도를 함유한 치약이 59.3%로 가장 많은 비중을 차지했으며, 불소를 함유하지 않은 치약은 3.7%, 1,000 ppm 이하의 불소 농도를 함유한 치약은 33.3%, 1,000 ppm 이상의 불소 농도를 함유한 치약은 3.7%로 나타났다. 선택한 구강양치액 제품의 불소 이온농도를 측정해본 결과, 300 ppm 이내의 불소 이온농도를 나타냈다. 또한 6개의 구강양치액 중 2개의 제품만이 불소 농도를 표기하고 있었다. 구강위생용품의 불소 함량을 나타내는 정보는 제품 종이상자 및 제품 자체에 표기되어 있으나, 거의 모든 표기는 뒷면에 작성되어 있으며 일부 제품에서는 제품 자체에 표기되어 있지 않은 경우도 있었다. 또한 표기된 정보 내용도 제조업체 간, 제조업체 내에서도 상이함을 확인되었다. 결론: 1,000 ppm 이상의 높은 불소 농도를 함유한 치약을 포함한 다양하고 효과적인 불소 농도의 구강위생용품들이 제공됨으로써 소비자들에게 더 넓은 선택의 폭을 제시하면 좋을 것으로 생각된다. 또한, 국내에서 시판 중인 구강위생용품에 대한 소비자에게 제공되는 정보가 다소 적은 것으로 사료되어, 소비자의 구강위생용품 선택에 대한 편의를 위해 명확한 기준 및 정보 표기에 대하여 개선해야 할 것으로 생각된다.