• The Journal of Korean Academy of Prosthodontics
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• v.45 no.1
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• pp.48-59
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• 2007

Statement of problems: There are few studies which reported the survival rates of the specific dental implant systems in the Korean population with the follow-up periods longer than 5 years. Purpose: This retrospective clinical study was aimed to evaluate cumulative survival rate (CSR) of $Br{\aa}nemark$ implants followed for 10 years and to determine risk factors for implant failure. Material and methods: A total of 271 $Br{\aa}nemark$ implants in 83 patients were investigated with several identified risk factors. Life table analysis was undertaken to examine the CSR. Cox regression method was conducted to assess the association between potential risk factors and overall CSR. Results: Thirty implants failed. The 10-year implant CSR was 82.5%. Cox regression analysis demonstrated a significant predictive association between overall CSR and implant length (P<.05). Conclusion: An acceptable long-term result of $Br{\aa}nemark$ implant was achieved and implant length showed a significant association with the CSR.

• Asian Pacific Journal of Cancer Prevention
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• v.13 no.5
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• pp.2279-2283
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• 2012

Human Papillomavirus (HPV) infection is one of the most common sexually transmitted infections and oncogenic HPV is the main cause of cervical cancer. However, HPV vaccination is already available as the primary preventive method against cervical cancer. The objective of this study was to determine the level of knowledge, attitude and practice of HPV vaccination among Universiti Kebangsaan Malaysia (UKM) and Universiti Malaya (UM) students. This study was conducted from March until August 2009. Pre-tested and validated questionnaires were filled by the third year UKM (n=156) and UM (n=149) students from medical, dentistry and pharmacy faculties. The results showed that the overall level of knowledge on HPV infection, cervical cancer and its prevention among respondents was high and the majority of them had positive attitude towards HPV vaccination. Medical students had the highest level of knowledge (p<0.05). Very few students (3.6%) had already taken the vaccine with no significant difference between the two Universities (p=0.399). In conclusion, the knowledge and attitude of the respondents were high and positive, respectively. Only few students took HPV vaccination. Thus, more awareness campaigns and HPV vaccination services should be provided at universities' campuses with the price of the HPV vaccine reduced for the students.

• Journal of Korean society of Dental Hygiene
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• v.14 no.2
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• pp.223-230
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• 2014

Objectives : The purpose of the study is to develop a program of oral health education by investigating the use and educational needs on auxiliary oral care products in employees. Methods : A self-administered questionnaire was filled out by 321 employees in the heavy industry in Youngam-gun. Results : Most of the employees used the dental floss. Approximately 72.6% answered that they did not receive the education on auxiliary oral care products and 81.3% of subjects did not participate in the education for the auxiliary oral care products. If free education is provided, 66.5% would receive the auxiliary oral care products use education. The best ways of education were expert lecture and brochure. Conclusions : The employees want the continuing education for the use of auxiliary oral care products. The oral health promotion program must be focused on the active practice of oral health behavior.

• The Journal of the Korean dental association
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• v.19 no.11 s.150
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• pp.949-956
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• 1981

The author collected some acid containing beverages to observe the influence which acid containing beverages affect the tooth surface tissue and the resistance of tooth which was treated with fluoride and counterpart tooth in the acid containing beverages and comparatively observing the erosion of enamel surface, the author came to the following conclusion. 1. Acid containing beverages on the market eroded the tooth surface tissue and the erosion degree was determined by the pH concentration of beverages. 2. the erosion aspect of the tooth surface in terms of acid containing beverages indicated some on the surface and surrounding enamel rod in the beverages which the pH was comparatively high, and the erosion was observed greatly in all enamel including the enamel rod in the beverages which pH was high. 4. When one drinks beverages, if beverges' pH is high, there are no serious harmful, but the author recommended not drinking the beverages which pH is low under the situation lack of the proper preventive dentistry technique.

• Journal of Periodontal and Implant Science
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• v.28 no.3
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• pp.517-523
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• 1998

The purpose of this study was to investigate the width of attached gingiva of young adults with healthy gingiva. We compared the differences according to the tooth location. The width of attached gingiva of maxilla and mandible was measured by histochemical method. The results were as follows: 1. The width of buccal keratinized gingiva in maxilla was widest in incisors(5.2-5.6mm) and narrowest in first bicuspids(4.4-4.5mm). 2. The width of buccal keratinized gingiva in mandible was widest in incisors(4.3-4.5mm) and narrowest in first bicuspids(3.2-3.3mm). 3. The width of lingual keratinized gingiva in mandible was widest in first molars(5.5-5.6mm) and narrowest in incisors(2.9-3.0mm). 4. The width of buccal attached gingiva in maxilla was widest in incisors(4.1-4.4mm) and narrowest in molars (3.0mm). 5. The width of buccal attached gingiva in mandible was widest in incisors(3.2-3.4mm) and narrowest in second molars (1.7-1.8mm). 6. The width of lingual attached gingiva in mandible was widest in first molars(3.5-3.7mm) and narrowest in incisors(1.9-2.1mm).

• The Journal of the Korean dental association
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• v.15 no.2
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• pp.145-151
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• 1977

The author performed Snyder test, estimation of salivary flow rate, salivary viscosity test, salivary buffering capacity test, M-R test, oral hygiene ability test, estimation of oral glucose clearance time and plaque reformation test in the 107 male Koreans aged form the age of 20 to 29, in order to detect and control the active cariogenic factors contributing to caries development on the individual basis. Thereafter, the data from 8 kinds of caries activity test were analysed and evaluated. The obtained results were as follows: 1. Snyder test was positive in 86.0% of total tested persons, and among those showing positive Snyder test reaction, slight caries activity was appeared in 39.1%, moderate caries activity in 23.9%, and marked caries activity in 37.0%. 2. Salivary flow rate was under the average flow amount in 53.3%. 3. Salivary buffering capacity was low in 22.4%. 5. Buffering capacity of dental plaque was high in 12.5%. 6. Oral hygiene ability was insufficient in all persons tested. 7. Oral glucose clearance time was long in 42.1%. 8. Plaque reformation rate was high in 8.4% of the 107 persons tested.

• Journal of Korean Academy of Oral Health
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• v.42 no.4
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• pp.109-117
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• 2018

Objectives: The purpose of this study was to evaluate the customized oral health promotion program for North Korean defectors (NKDs). Methods: Using a pre-survey comprising phases 1-5 of the PRECEDE-PROCEED model, a customized oral health promotion program was created. The participants, a total of 129 NKDs, were allocated to the experimental group (n=64; 43 females and 21 males) or the control group (n=65; 46 females and 19 males). After the interventions, phases 7 to 9 of the PRECEDE-PROCEED model were executed to determine the effect of the program. Results: The results for phase 7 revealed high satisfaction with the program, with an average of 2.89 out of 3 points. In phase 8, concerning the impact evaluation, it was found that oral health beliefs and oral health knowledge were improved, with statistically significance differences before and after the experiment. Phase 9, concerning the outcome evaluation, showed that there were statistically significant differences in the average within groups before and after education in oral health beliefs (OHB), O'Leary index scores, and CPI. In terms of the difference between the groups, there were statistically significant improvement in OHB, O'Leary index scores, and CPI after the education program. Conclusions: The oral health promotion program developed in this study has made a positive contribution to improve the oral health status of NKDs.

• Journal of Korean Academy of Oral Health
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• v.42 no.4
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• pp.152-158
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• 2018

Objectives: The purpose of this study was to investigate effective predictive factors of the persistence of unmet dental care needs. Methods: Data were obtained from the Korea Health Panel studies of 2011 and 2015, and 4,406 subjects, aged 18 years or older, were included in this study. Of these subjects, those who persistently experienced unmet dental care needs over the three-year period were identified. Panel logistic regression analyses were conducted to identify socio-demographic and health-related factors associated with the persistence of unmet dental care needs in two groups, those aged between 18-64 years and over 65 years. Results: Approximately 12% of subjects showed a persistence in unmet dental care needs. Marital status, education level, household income, type of health insurance, and self-rated health status all significantly correlated with the persistence of unmet dental care needs in both age groups. Conclusions: Efforts should be made to identify factors related to the persistence of unmet dental care needs in order to improve patient accessibility to dental care services.

• Journal of Korean Academy of Oral Health
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• v.42 no.4
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• pp.130-135
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• 2018

Objectives: This study aimed to identify the effects of team-member exchange (TMX) on dental hygienists' commitment. Methods: A self-administrated questionnaire was conducted from August 22 to September, 2016 with 191 dental hygienists in Busan and Gyeongsangnam-do. Teacher-member relationships and community were evaluated with the TMX scale and community scale, respectively. A self-administered five-point scale. Data were analyzed by descriptive statistics, t-tests, one-way ANOVA, Pearson correlations, and multiple linear regression analysis. Results: Overall TMX and commitment levels of subjects were $3.78{\pm}0.43$ and $3.20{\pm}0.41$, respectively. The TMX subcategories that influenced commitment and change (a subcategory of commitment) were community consciousness, and trust and respect. The TMX subcategory that influenced organization (a subcategory of commitment) was community consciousness. Conclusions: Dental hygienists' commitment was closely related to community consciousness, and trust and respect.

• Journal of Korean Academy of Oral Health
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• v.42 no.4
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• pp.175-180
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• 2018

Objectives: This study aimed to evaluate the relationship between oral health professionals' knowledge, attitude, and practice with regard to infectious waste management and to identify related factors influencing it. Methods: The study comprised of 219 oral health professionals from select dental clinics and public health centers recruited between August 25, 2016 and September 5, 2016, who agreed to participate in the study with full understanding of the study objectives. A self-reported questionnaire was administered, which consisted of 22 items on knowledge of infectious waste management, 9 items on attitude, and 16 items on practice. Data were analyzed using Pearson's correlation coefficient and stepwise multiple regression analyses. Results: The age, knowledge, and clinical attitude of oral health professionals significantly correlated with waste management practice. Specifically, infectious waste management practice improved with increasing age, a greater level of knowledge, and a more positive clinical attitude. Additionally, the standardized regression coefficient demonstrated that, of these three factors, clinical attitude more strongly correlated with effective waste management practice, followed by age and level of knowledge. Conclusions: These results indicated that oral health professionals had a low level of knowledge regarding infectious waste management, and a more positive clinical attitude resulted in better practices. Therefore, the development of detailed and active education guidelines and strategies are needed to enhance the attitude, knowledge, and practice of oral health professionals with regard to infectious waste management.