• Journal of Korean Academy of Oral Health
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• 제41권1호
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• pp.16-21
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• 2017

Objectives: Dental caries and periodontitis are major oral bacterial infections associated with dental plaque. Infection and inflammation play a role in carcinogenesis, and a significant link has been found between some highly prevalent oral and dental diseases and some types of cancer. Therefore, the aim of this study was to evaluate the relationship between cancer and oral health among Korean adults. Methods: Data from the 6th Korea National Health and Nutrition Examination Survey were used to analyze the incidence of cancer according to oral health. Demographic and socioeconomic statuses and oral behavior of the participants was analyzed using complex chi-square tests. Logistic regression was used to analyze the relationship between a high DMFT index and cancer by calculating the 95% confidence intervals. Results: In total, 6,450 case-control subjects were included. Significant difference was observed in the DMFT index, but not in periodontal diseases, between the cases and controls. The odds ratio for cancer was 1.80 (95% confidence interval: 1.18 to 2.73) in the high-risk group. However, no significant difference was observed after adjusting for age, education level, and income. Conclusions: The results provide potential evidence of a significant association between cancer and oral disease.

• 한국치위생학회지
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• 제5권1호
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• pp.15-27
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• 2005

The purpose of this study was to assess how mothers' oral health behaviour, knowledge, and socio-demographic characteristics influence on dental caries status of their children. The 142 children and their mothers were selected for this study. The children were 5 and 6 years old in the three day care centers in Ulsan, Korea. Date were collected by oral examination on children and self-administrated questionnaire on their mothers. The questionnaire was surveyed mothers' behaviour and know ledge of oral health and their socio-demographic characteristics. The findings of this study were summarized as follows: 1. The higher mother's educational level and the greater children members, the higher degree of oral health knowledge, but there was no significant relation. 2. There was significant relationship between working mothers and correct toothbrushing, between monthly mean income and important for oral health. 3. The dft index was lower when the higher mother's oral health knowledge, the larger toothbrushing frequency, preventive dental visit.

• 대한소아치과학회지
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• 제25권2호
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• pp.441-449
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• 1998

For the purpose of knowing oral status of handicapped persons and surveying correlative factors, authors interviewed and inspected 259 persons (cerebral palsy 143, mental retardation 101, Down's syndrome 15) from six year to thirty years old in Kwangju. The results were as follows. 1. The dmf rate and dft index of handicapped persons according to age were lower than that of report of normal persons. 2. The DMF rate and DMFT index of handicapped persons increased with age and were similar to or lower than that of report of normal persons by the age of twenty, but were higher after that age. There was no significant difference between handicaps in DMFT rate. 3. Percentage of toothbrushing by himself or herself was 74% in mental retardation, 69% in Down's syndrome, and 48% in cerebral palsy and the frequency of toothbrushing per day of mental retardation, Down's syndrome was higher than that of cerebral palsy. The frequency of toothbrushing per day increased with age. The number of toothbrushing of handicapped persons was slightly higher than that of report of normal persons. 4. Prevalence of gingivitis was 62% in cerebral palsy, 48% in Down's syndrome and 60% in mental retardation. Prevalence of gingivitis increased with age, and was higher than that of report of normal persons. 5. Percentage of tooth anomaly was 15% in Down's syndrome, 8.5% in mental retardation and 4.9% in cerebral palsy. In this study, dental caries of handicapped persons was similar to or lower than that of normal persons and increased with age. The prevalence of gingivitis was much higher in handicapped persons. Subject or frequency of toothbrushing had no influence on the dental caries and gingivitis, education of oral health and system are needed.

• 대한소아치과학회지
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• 제46권3호
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• pp.310-317
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• 2019

이 연구의 목적은 12세 이하 어린이의 영구치에서 복합레진 수복물의 생존율을 후향적으로 평가하고 치아 및 환자에 관련된 요인에 따른 복합레진 재수복 위험도를 분석하는 데 있다. 2010년 7월부터 2012년 7월까지 우식증에 이환된 제1대구치에 복합레진 수복을 진행한 어린이(6 - 12세) 172명의 전자의무기록 및 방사선 사진을 분석하였다. 치아의 종류, 와동의 형태 등 치아에 관련된 요인과 어린이의 연령, 우식 위험도 등 환자에 관련된 요인에 따른 복합레진 재수복 위험도를 분석하였다. 우식 위험도는 어린이의 만 5세 때 기록을 바탕으로 유구치에 한정한 우식경험유치지수를 산정하여 평가하였다. 354개의 수복물 중 272개의 수복물이 생존하였고, 82개의 수복물이 관찰 기간 내에 재수복되었고 전체 수복물의 5년 누적 생존율은 73.9%로 산출되었다. 재수복 원인의 81.7%는 이차우식이 차지하였다. 어린이의 연령이 높을수록, 우식 저위험군일수록 복합레진의 수복물의 생존율은 높은 경향을 나타냈으나, 유의한 차이를 나타내지 않았다. 수복된 치아의 위치 또한 복합레진의 생존율에 유의한 영향을 주지 않았다. 수복된 와동의 종류는 생존율에 유의한 영향을 주는 요인이었다(p = 0.002).

• 한국치위생학회지
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• 제8권4호
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• pp.229-240
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• 2008

Objectives : This study was to investigate the impact of dietary habits and obesity on level of oral health in the elementary school children and to characterize the relationship among dietary habits, obesity and level of oral health by DMFT index and perceived oral health. Methods : Participants were 314 total students from one elementary school who lived Yeosan. Self-administered questionnaires were given to the subjects from March 25 through May 12, 2008, to identify their the degree of dietary habits, perceived oral health. A trained investigator made an oral examination of them in natural light using a mirror and explorer to determine their DMFT index. We classified the subjects into Data were analyzed with T-test, one-way ANOVA, and Duncan's multiple range test, pearson correlation coefficient and multiple regression using the SPSS WIN 12.0 program. Results : Regarding dietary habit, the subjects achieved a mean of 10.52${\pm}$3.80 out of a maximum 20 points. The DMFT index in the subject was 0.60${\pm}$2.03. The group of obesity by gender were 19.2% and 22.5%. Moreover, those who were children and had more severe level of obesity felt that their perceived oral health and DMFT index were higher. There was a significant assocciation of oral health among elementary school children with obesity. Conclusion : These results suggest that oral health behavioral and attitude, dietary habits and obesity influenced the level of oral health. Thus further research targeting to positive attitude toward effective management of childhood obesity combined with significant dietary habits, may lead to promotion of oral health.

• 대한치과기공학회지
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• 제10권1호
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• pp.151-157
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• 1988

저자는 대구시내에 거주하는 국민학교 6학년생 64명과 농촌지역에 거주하는 국민학교 6학년생 58명 총 122명을 대상으로 Snyder 검사, 타액완충능 검사 및 타액분비량을 측정하여 이들과 DMFT 및 DMFS index와의 상호관계를 분석해 보았던 바 다음과 같은 결론을 얻었다. 1. Snyder 검사에 양성인자는 78.7%이었고, 양성인자중 현자한 자는 29.5%, 중등도인자는 30.3%, 경도인자는 18.7%이었고, 음성인자는 21.3%이었다. 2. Snyder 검사에 음성반응을 나타낸 군이 양성반응을 나타낸 군에 비해 DMFT 및 DMFS index가 현저히 낮았다(P<0.01). 3. 도시와 농촌지역 아동으로 나눈 Snyder 검사 결과 음성반응은 도시지역 아동이 73.45%, 농촌지역 아동이 84.48%이었다. 4. 자극성 타액의 분비량은 남자가 6.97$\pm$2.57, 여자가 6.34$\pm$2.45로 남자가 조금 높게 나타났으나 유의성은 없었다(P>0.05). 5. 자극성 타액분비량이 평균치 이하인 군이 평균치 이상인 군보다 월등히 높은 DMFT 및 DMFS index를 나타내었다(P<0.01). 6. 도시와 농촌지역 아동으로 구분한 타액분비량 측정결과 도시지역 아동이 약간 높았으나 유의성은 없었다(P>0.05). 7. 타액완충능은 남자가 7.65$\pm$2.19, 여자가 6.80$\pm$1.67로 남자가 유의성 있게 높게 나타났다(P<0.05). 8. 타액완충능이 평균치 이하인군이 평균치 이상인 군보다 월등히 높은 DMFT 및 DMFS index를 나타내었다(P<0.01). 9. 도시와 농촌지역 아동으로 나눈 타액 완충능 검사결과 도시지역 아동이 유의성 있게 높이 나타났다. 10. 자극성 타액분비량과 타액의 완충능이 높을 경우 영구치 우식발생에 억제적인 효과가 있음을 확인하였다.

• 한국치위생학회지
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• 제22권4호
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• pp.241-247
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• 2022

Objectives: This study aimed to determine the Missing Teeth (MT; mean number of missing permanent teeth) index experienced by year for adults between the ages of 19 and 64. Methods: This study was conducted by analyzing the raw data of participants in the 4th to 8th periods of the National Health and Nutrition Examination Survey (NHANES). For the statistical program, IBM SPSS / WIN 26 was used and an independent sample t-test was performed. Results: The average number of MT by year showed a decreasing trend. In 2007, 2008, 2010 and 2011, the average number of MT by sex was higher among females, and this was statistically significant (p<0.05). However, in 2019, males had a higher average number of MT than females, which was statistically significant (p<0.05). Conclusions: Males had a higher average number of MT than females in Korea, so it is considered that oral health programs or oral hygiene management according to sex are necessary.

• 한국치위생학회지
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• 제9권1호
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• pp.153-168
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• 2009

This study was executed to find out the outcome of Incremental Dental Care from September to November, 2004. 40 visitors to oral health center were examined on the oral conditions every week, seven times during above-mentioned period. Various tests were practiced in order to check their oral conditions before and after IDC such as tooth-brushing method/frequency/duration, calculus index, PHP index, halitosis and dental caries activity. Question and answer sheets were presented to student dental hygienists and 40 visitors respectively after IDC program. Results obtained are as follows. 1. Rotation method of toothbrushing increased from 27.8% to 88.9%. for men and increased from 27.3% to 95% for women. 2. Toothbrushing frequency increased from 2.8 times to 3.0 times a day for men and increased from 2.6 times to 3.1 times for women. Toothbrushing duration increased from 2.3 minutes to 2.8 minutes for men and increased from 2.1 minutes to 2.9 minutes for women. 3. Calculus index reduced from 0.5 to 0.1 for men and reduced from 0.7 to 0 for women. PHP index reduced from 3.7 to 3.0 for men and reduced 3.2 to 1.7 for women. However, halitosis didn't mark any significant difference before and after IDC. 4. Saliva buffering capacity of medium plus showed no change for men(94.5%), however increased from 95.4% to 100% for women. Dental caries activity of medium plus in S.mutans reduced by 4.3 times(72.2% to 16.7%) for men and reduced by 2 times(36.4% to 18.1%) for women. LB test results reduced by 1.5 times(50% to 33.3%) for men and reduced by 2.5 times(50% to 18.1%) for women. Alban's test results reduced by 1.4 times(83.3% to 61.1%) for men and reduced by 1.2 times(81.8% to 68.2%) for women. 5. All participants including visitors and students realized the importance of IDC and expressed a great satisfaction with IDC program. In conclusion, it is considered very necessary that IDC program should be maintained and extended to whole country so as to enhance the peoples' oral health conditions.

• 한국치위생학회지
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• 제15권4호
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• pp.705-711
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• 2015

Objectives: The purpose of the study is to evaluate the effect of continuing dental care program by elementary school dental clinic in Gimcheon from 2008 to 2013. Methods: The subjects were experimental group of 152 students from three elementary schools having dental clinics and control group of 136 students from three elementary schools of no dental clinics. The six dentists in Gimcheon community health center carried out the regular dental checkups in the elementary schools and four dental hygienists recorded the dental examination results. After receiving WHO dental survey guideline education, the examiners used dental mirror and dental probe under the natural light. The contents of the survey included dental caries in the deciduous and permanent teeth, malocclusion, remaining ratio of sealant, treatment, and follow up. Results: DFT index by grade showed that 3.71 in experimental group and 4.56 in control group and it was remarkable in the 3rd grade. Thus. DFT index in the experimental group was lower than that of control group (p<0.05). DT index by grade was 0.63 in experimental group and 1.28 in control group marked in the 6th grade. DT index in the control group was higher than that of the experimental group (p<0,001). DFT index and DMFT Index by grade showed no significant difference between the control group and the experimental group. DFT and DMFT Index of the control group in the 3rd and 6th grade were lower score than those of experimental group. DFT and DMFT index in the third and 6th grade showed no significant difference between the control group and the experimental group. The remaining ratio of the sealant was 4.89 experimental group in the 6th grade. The remaining ratio of the sealant in the experimental group was higher than that in the control group. Conclusions: The continuing dental care program in the elementary school is very effective method in the treatment of oral disease in the elementary school children. The oral health care and prevention for the elementary school children should be implemented and carried out continuously.

• Journal of Periodontal and Implant Science
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• 제31권3호
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• pp.625-631
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• 2001

The anatomic structure around interproximal area plays an important role not only in the natural teeth, but also in the implant. The loss of papilla can lead to cosmetic deformity, phonetic problem, food impaction on the anterior dentition, and masticatory problem, food impaction and proximal caries on the posterior dentition. The purpose of this study was to evaluate the relationship between interdental papilla existence and distance from contact point to alveolar crest in Korean posteior dentition. 45 Korean adult patients(31males, 14 females) participated in this study. Measurements were carreid out total 126 interproximal areas, 18 first premolar, 31 second premolar, 40 first molar, and 37 second molar areas. Papilla index was recorded as suggested by Jemt. Distance between contact point and alveolar crest measrued by Florida $probe^{R}$, after flap elevation. Each distance was measured 10 times by every 0.1mm unit. The results showed that the mean Papilla index 1.37 and mean distance between contact point and alveolar crest was 7.44mm. The correlation between the Papilla index and distance was high negative correlation(Pearson correlation=-0.47), and it was statistically significant(P=0.000) When the distance between contact point and alveolar crest was 5mm, the loss of papilla was appeared almost in half cases. When the distance was 6mm, the papilla loss was present 95%, when 7mm, the papilla loss was 100%.