• Journal of Dental Anesthesia and Pain Medicine
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• 제21권5호
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• pp.431-440
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• 2021

Background: Neurovascular compression (NVC) is a well-known cause of trigeminal neuralgia (TN). However, patients with idiopathic TN (ITN) do not have evidence of NVC on magnetic resonance imaging (MRI), and other patients may remain asymptomatic despite evidence of NVC on MRI. This suggests that there may be additional risk factors for TN development other than NVC. Although epidemiological factors, such as age and sex differences, are useful for understanding the pathophysiology of TN, detailed statistics for each TN subtype are currently unavailable. Therefore, this study aimed to classify patients with TN into the following groups based on data extracted from past medical records: classical TN (CTN), secondary TN, and ITN. Methods: The characteristics of the groups and their differences were explored. Results: CTN was more common in women than in men, as previously reported, whereas ITN was more common in men than in women. The ratio of pain sites located on the right side of the face was high in all groups. Patients with CTN were also prone to NVC on the asymptomatic side. Conclusion: By investigating TN subtype, it may be possible to elucidate the pathophysiology of TN. This would greatly improve treatment outcomes.

• 대한치과기공학회지
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• 제41권3호
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• pp.203-209
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• 2019

Purpose: The purpose of this study was to investigate the mechanical properties of polymer prosthetic and restorative materials for dental CAD/CAM using two test method; surface characteristics and shear bond strength. Methods: Commercialized CAD/CAM polymer blanks were investigated; One kinds of PMMA, and one PEKK blanks. A total of 20 PMMA and PEKK specimens were prepared, and each group was divided into 10 specimens. Average surface roughness was observed under surface profilometer. The contact angle was measured with a surface electrooptics. The bond strength was evaluated by a universal testing machine at a crosshead speed of 5mm/min. The data were statistically analyzed using independent t-test and Fisher's exact test(P<0.05). Results: The PMMA and PEKK group showed a significant difference in the shear bond strength with the composite resin(P<0.05). The surface roughness of the PEKK group was higher than that of the PMMA group. The fracture mode were observed in PEKK groups with 50% showing adhesive remnant index score. Conclusion: PEEK is used as substructure material and composite veneering material is applied. PEKK resins will contribute to the development of successful products that will provide structural and aesthetic satisfaction.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제49권3호
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• pp.114-124
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• 2023

Dental implants have been utilized for many years to treat individuals with missing teeth. To optimize the long-term success rate of such implants, new designs, surfaces, and materials have been analyzed. It is important for the clinician to have a background in the field of implant surface design, to be familiar with the strengths and limitations of the available options, and to be aware of the alterations in surface structure that may occur following installation. This article provides a detailed review of the structure and the surface characteristics of dental implants, the modifications of implant surface, as well as the methods of evaluating implant surface structure. Moreover, it provides information concerning the structural changes that may take place at the time of dental implant placement. It is important for clinicians to be aware of such changes to plan and execute implant procedures with the highest possible success and implant survival rates.

• 한국치위생학회지
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• 제23권6호
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• pp.467-474
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• 2023

Objectives: To investigate factors related to scaling between Korean and multicultural families using data from the 18th Youth Health Behavior Survey (KYRBS), 38,320 Korean adolescents were selected as subjects. Methods: A complex sample cross-analysis was conducted on general characteristics and oral health characteristics using the IBM SPSS program. Factors related to adolescent scaling were analyzed using complex sample logistic regression analysis. Results: Compared to Korean families, adolescents from multicultural families had 0.50 times less scaling experience within 12 months. Learning achievement was 1.30 times higher in high compared to low, indicating that scaling experience was high. In terms of economic status, scaling experience was found to be high at 1.50 times in high compared to low. Non-smoking adolescents had 1.26 times higher scaling experience. It was found that adolescents who do not use dental floss and interdental brushes have 0.71 and 0.55 times less scaling experience, respectively. Conclusions: Based on the above results, there is a need to increase adolescents awareness of oral health and motivate them to manage their own oral care. There is a need to provide opportunities to participate in various oral health education programs and to deepen continuous oral health education on oral disease prevention.

• 보건교육건강증진학회지
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• 제17권1호
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• pp.95-113
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• 2000

The purpose of this study is to investigate the state of the dental health of adults, used self-reporting qestionnaire as objects of 923 residents living in nine districts at random among the sites of eleven town located in a County. The level of knowledge on dental health of adults in a County was 65.6 points out of 100 points, comparatively low. Accodingly, it is necessary for entire adults to have a dental health-related education and get high standard of knowledge. Especially, educational approach should be performed for groups of 40-49 years old, 50-59 years old, above 60 years old, male, no educational background, having only elementary and middle school education, not having any jobs, engaging in agriculture, doing business on their own and so on. When planning the contents of health education, one actually has to include the habit of amalgam, the factor in influencing on dental health as well as show an example such as how to brush teeth, checking point of proper brushing, how to grip toothbrush. The attitude score related to dental heath was 71.2 points out of 100 points, relatively low. Consequently, the change of attitude related the dental health among entire adults is necessary, particularily, the strategical approach is essential to change dental health connected to attitude positively for groups of male, having high school education background, office workers and the civil service. Besides, among dental health related symtoms, more that 30-40％ of objects showed negative attitude toward as the following cases; in case that plaque or food debris are attached to the teeth (40.8％), upper and lower teeth do not fit together(40.3％), you cannot sleep well because of toothache(31.0％), more than one tooth fall out(31.0％), you have loosing teeth(30.6％), the approach should be conducted to form attitude that dental care is necessry. The state of dental health through dental health related symtoms was 33.3 points out of 100 points, which was fairly satisfactory. However, dental treatment for the state of dental health should be executed in case of comparison of the dental health state according to general characteristics, the group who are above 60 years old, have elementary school education background, engage in aggriculture who are not good in dental health state as opposed to other groups. Furthermore, there should be dental care needs according to dental health related symtoms, particularly, more than 60-70％ of objects have experienced symtoms that plaque or food debris attached to the teeth, tartar is on the teeth so dental treatment should be peformed for a large number of adults. In addition, for the people who have indications that there was a cavity, more than one tooth loss, chilled teeth, toothache when chewing, loose teeth, upper and lower teeth do not fit together, you cannnt sleep well due to the toothach, etc, there should be care through dental treatment. The actual conditions of the hygine of the mouth was relatively good and the difference of the actual state of dental health care in terms of general characteristics showed in only gender; female was more careful in dental health. Comparing the state of oral health synthetically, when they have symtoms, only 34.8％ of objects go to a dentist, 60.7％ are using passive or negative care such as gargling, tolerating or ignoring. There was many symtoms to care through dental therapy such as plaque or food debris get in between the teeth, tartar on the teeth, teeth are very cold, more than one tooth fallout, loose teeth, there is wrong amalgam, and so on, among symtoms to care passively or negatively. Therefore the education for proper treatment program should be performed. As a result of dental health-related knowlege, attitude, health state, verification of correlation between the actual condition of care, the higher the dental heath-related knowldege becomes, the more positive the dental health-related attitude is, and the state of dental health, that is, the standard of the symtom of dental health diminishes. the care for dental health executed through more active method and the more positive dental health-related attitude is, the more active means they performed. Consequently, the high level of dental health-related knowledge should be necessary, the more positive the dental health-related attitude was, the more active method they adopted, therefore, the program is needed to form attitude related to the dental health positively. As the knowledge on dental health is increasing, the attitude is also positive, after all, the plan to increase the standard of knowledge on dental health should be contrived through education program related to dental health.

• 한국치위생학회지
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• 제15권5호
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• pp.759-765
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• 2015

Objectives: The purpose of the study was to investigate the choice motivation of dental clinics by patients. Methods: A self-reported questionnaire was completed by 577 patients visiting the dental clinics from October 6 to 25, 2014 in G city after explaining the purpose of the study and receiving the informed consent. The questionnaire consisted of sociodemographic characteristics and choice motivation of dental clinics using Likert 5 point scale. Results: 1. The traffic convenience was the highest in those who were the 30s (3.37) and unmarried person (3.30). Those having moderate oral health condition showed 3.23. The regular checkup group had 3.33. The physical environment was the highest in the 20s (3.37) and the unmarried persons (3.33). Those having master's degree showed 3.86. The reputation of the dental clinic image was the highest in those having master's degree (3.63). Those having moderate oral health condition had 3.28. The main reason for dental clinic visit was tooth extraction (3.79, p<0.05). 2. The top priority choice for the dental clinic was the access to the dental clinic and the next reason was reputation for the dentist. The other choice factors included trust for the dentist, recommendation, and night treatment. Conclusions: The important choice for the dental clinic included the access to the dental clinic and reputation for the dentist.

• 한국치위생학회지
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• 제15권5호
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• pp.857-863
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• 2015

Objectives: The purpose of the study is to investigate the awareness and activation towards dental medical tourism. Methods: A self-reported questionnaire was completed by 195 dental hygienists in Seoul from January 30 to September 15, 2014. Data were analyzed by one way ANOVA, chi square and t test using SPSS 19.0 program. the questionnaire consisted of general characteristics of the subjects, awareness towards medical tourism, medical tourism related hospitals, activation of Korean medical tourism, fields of medical tourism, and improvement of medical tourism. The questionnaire was adapted and modified from Kim and Kim by Likert scale. Results: Dental hygienists gave the high perception and possibility towards medical tourism (94.1%). Those carrying out medical tourism accounted for 39.5 percent. The most difficult problem was communication with foreigners (80.5%). The performance of prosthesis and anesthesia was the most specialized area that supported the medical tourism (84.1%). In order to improve the medical tourism implementation, dental medical technology must be strengthened (39.8%). Conclusion: The desirable dental medical tourism must be carried out by proficient dental medical manpower, higher technology, active participation and financial support by the government. This dental medical tourism will provide job opening for the dental hygienists.

• 한국치위생학회지
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• 제12권1호
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• pp.57-65
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• 2012

Objectives : The purpose of this study is to seek analysis of related factors for dental fear and to know the fear component affecting the treatment of the dental treatment. Methods : Total of 320 females and males aging from 10 to 40 years old with dental treatments done from May to July 2010 have participated with self-entry survey method utilizing the Dental Fear Survey questionnaire. The data received was analyzed using the descriptive statistic, t-test, ANOVA and multiple correlation analysis with level of significance as p<0.05. Results : The dental fear factor were significantly high in woman by $2.79{\pm}0.92$ and in 40's age group by $2.82{\pm}0.84$ (p<0.05). Participants with frequent tooth ache, experiencing pain while treating the tooth ache and breaking the dental treatment appointment showed higher fear factor. Thoughts of having poor dental health condition caused bad influence on fear factor. Overall, the factors affecting the fear of the dental treatments were gender, an ache while treating, number of missed appointment, and distrust of the dentist, stimulation factor were the factors affecting the treatment. Conclusions : The fear factors in the dental treatment were higher with gender, related characteristics of the oral health and distrust of the dentist. Therefore accurately recognizing the sensitive patient with dental treatment, proper management of the toothache, effort to increase the creditability of the doctors and separately treating patient customized for each individual patient will reduce the fear of the dental treatment.

• 한국치위생학회지
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• 제21권2호
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• pp.159-170
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• 2021

Objectives: This study aimed to investigate factors for retention intention among long-term employed dental hygienists and to provide basic data for improving the long-term service (working) environment. Methods: A total of 202 dental hygienists with more than five years' work experience at dental hospitals and clinics located in Seoul, Gwangju, and Jeonnam Province, South Korea, were surveyed. The data were analyzed for each factor using exploratory factor analysis, and differences according to the general characteristics of the participants were analyzed using an independent sample t-test, one-way ANOVA and a hierarchical multiple regression analysis. Results: At the current workplace, a better working environment, and higher job satisfaction were associated with higher retention intention. However, lower professionalism in dental hygiene as a subdomain of the professional self-concept domain was associated with higher retention intention. Conclusions: To increase retention intention among dental hygienists, it is necessary to improve the working environment in which dental hygienists can perform professional roles and seek ways to establish their identity as professionals in dental healthcare settings.

• Journal of Dental Anesthesia and Pain Medicine
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• 제22권2호
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• pp.155-159
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• 2022

Cohen syndrome is a rare genetic disorder associated with mutations in the VPS13B gene. Individuals with this disorder present with diverse clinical manifestations, including muscle hypotonia, intellectual disabilities, and typical facial characteristics, such as prominent upper central incisors and micrognathia. General anesthesia was administered to a 23-year-old man with Cohen syndrome. Although we observed prominent upper central incisors, an overjet of 10 mm, micrognathia, and thyromental distance of 4 cm, hypotonia was not observed in the patient. Intubation was rendered difficult when performing a direct laryngoscopy. However, smooth intubation was achieved using a video laryngoscope. The patient's train of four (TOF) count remained zero close to 60 min after rocuronium administration, suggesting that the drug's muscle-relaxant effect may have been prolonged. A TOF ratio of 0.79 was confirmed 130 min after rocuronium administration, and a TOF ratio of 1.0 was confirmed after administration of 150 mg of sugammadex. The patient's respiration remained stable after extubation, and no recurarization of muscle relaxation was observed. As demonstrated in this case report, it is important to closely monitor recovery from muscle relaxation and prepare multiple techniques for airway management in general anesthesia management of patients with Cohen syndrome.