• Journal of the korean academy of Pediatric Dentistry
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• v.34 no.4
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• pp.639-645
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• 2007

Removable or fixed space maintainer could be needed if one or some anterior primary teeth were missing, where resin pontics well-matched to natural primary teeth should be demanded to get an esthetic satisfaction. Resin Natural $Teeth^{TM}$(Nissin dental, Japan) is available currently in Korea, which consists of two shades of colors; type A1 and A2. The purpose of this study is to elucidate the colors of the anterior primary resin teeth and to establish the data to compare those with the natural anterior primary teeth. CIE $L^*a^*b^*s$ were measured each three times labially from 17 sets of maxillary four anterior teeth for type A1 and A2 Resin Natural $Teeth^{TM}$ using ShadeEye $NCC^{TM}$(Shofu, Japan) which is one of spectrophotometers. The data were analysed statistically using Kruskall-Wallis Test and Mann-Whitney U Test. The results were as follows : 1. There were smaller teeth color differences in group A1 than in group A2 when it comes to distributions of ${\Delta}E$, $L^*$ and $b^*$. There were no statistically significant differences of $a^*$ between teeth in the same group(P>0.05). 2. ${\Delta}E$ in group A1 and A2 (maximum ${\Delta}E{\le}1.23$) were very small, which could not be discerned by eyesight. ${\Delta}E$ between mean CIE $L^*a^*b^*s$ of group A1 and A2 was 3.97, which could be discernible by eyesight. 3. Mean measurements of group A1 were $L^*=73.8$, $a^*=-1.8$, $b^*=-4.7$, and those of group A2 were $L^*=75.8$, $a^*=-2.7$, $b^*=-1.4$. It would be recommended that resin teeth compatible to the colors of the natural primary ones needed to be developed by investigating in vivo study.

• Journal of the Korean Academy of Esthetic Dentistry
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• v.7 no.1
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• pp.72-78
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• 1998

Recently, esthetic dentistry has been developed because beauty is pursued by both dentists and patients. A scope of esthetic treatment has been expanded and the roles of hygienists in dental treatment have also become of importance. Generally, we make use of the ultra-sonic scaler to remove the stains attached to teeth surfaces, but when we utilize the rubber cup and pumice in prophylaxis, this increases the hypersensitivity, patient's anxiety, and chairtime. So, we substitute Air-polishing that increases patient's satisfaction and decreases chairtime for above method, Here, I would like to explain indications and contraindications, advantages and disadvantages, and usages of Air-polilshing briefly.

• Journal of the Korean Dietetic Association
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• v.6 no.2
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• pp.57-70
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• 2000

The purpose of this study were to : a) evaluate the nutrition status of one hundred and forty five recipients and one hundred and forty nine non-recipients of home-delivered meals service program, b) examine the teeth status of recipients of the program, c)analyze the nutritional values of meals, and identify the attitudes of recipients and non-recipients were found. Four meals offered by Nambu seniors center were met the recommended dietary allowances in calorie, protein, and vitamin C. The mean score of meal satisfaction was 3.7 out of five-point scale.

• Journal of the Korean Academy of Esthetic Dentistry
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• v.7 no.1
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• pp.64-70
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• 1998

Recently as the interest on Esthetic Dental Prosthesis is arising, the domains of Esthetic Dentistry is being widely investigated. Esthetic Dental Prosthesis is influenced greatly by the shape, color, tooth arrangement of the teeth and the facial features(including the lips). So the degree to which these characters harmonize will be the professional esthetical standard while the satisfaction of the patient will be another esthetical measure. The reason for this is that each and every one of us has a different standard of what is considered beautiful. Of course it doesn't mean that every standard is correct. Then what does Esthetical Prosthesis mean and what should the standard be? This must be defined as a prosthesis that satisfies the basic requirements - margin, contour, occlusion, and at the same time it should restore the shape, color, and tooth arrangement which the client(patient) would love to have. As Esthetic Prosthesis contains its subjective meaning a great deal, it shouldn't be simply distinguished between the beauty of the teeth itself or ugliness. Also in some case, it needs surgical treatment to make it harmonious in the whole aspect so that one may keep the feeling of satisfaction and security. Then what is the shape, color, tooth arrangement that each individual wants? There is an indefinite variety. For example, considering arrangement both regular and irregular is considered beautiful by each different individual. Regular arrangement may be the standard of beauty for some, while irregular arrangement may be thought of as natural looking and beautiful. That is why there must be enough communication with the patient and an agreement be made at the clinic before a diagnostic plan and actual surgery. The treatment plan as mentioned above must be sent to the dental laboratory. In this research, by using case studies, I am going to the importance and appropriateness of the data and information for the dental technician's esthetic prosthesis.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.41
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• pp.29.1-29.10
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• 2019

Background: Reduction in postoperative complications is of vital considerations in impacted third molar teeth surgery. The aim of this study was to compare postoperative complications of impacted third molar surgeries for bone removal using laser, piezoelectric equipment, and conventional rotary instruments. Methods: To address the research purpose, the investigator designed the prospective double-blind clinical trial study. The sample size was determined 20 (40 teeth) by sampling formula in any kind of operation. The data of patients were obtained in the different periods in terms of pain, trismus, swelling, ecchymosis, and patient's satisfaction and then analyzed using SPSS 20 software via paired t test and Wilcoxon and McNemar's tests. Results: The pain immediately after surgery and 2 days and 7 days after surgery was higher in the laser group. The swelling immediately after surgery was more in the laser group but not significant. The amount of mouth opening immediately after surgery and 2 days and 7 days after surgery was significantly lower in the laser group than in the piezosurgery group. The total duration of surgery and duration of osteotomy were significantly longer in the laser group. The patient's satisfaction from surgery with piezosurgery was more than that with laser, but this difference was not significant. Conclusion: Due to the rising demand for impacted wisdom tooth surgery, the present study suggests that hard tissue laser surgery and piezosurgery can clear the future of impacted molar surgery, and these approaches are more efficient in reducing postoperative complications compared to the conventional surgeries.

• The Journal of Korean Academy of Prosthodontics
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• v.46 no.6
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• pp.591-601
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• 2008

STATEMENT OF PROBLEM: The improvement in oral function and comfort from the dental implant appears to depend on the particular type of implant support used with the denture. The number and positioning of implants have an influence on the force transfer and subsequent stress distribution around implants. Nevertheless, a quantitative comparison has not been made between the types of implant prosthesis used with different materials compared to conventional complete denture. PURPOSE: The objective of this study is to assess the masticatory performance, bite force and impact of two different type of implant supported prostheses on oral health-related quality of life compared to conventional complete denture with GOHAI, validated oral-specific health status measures, the sieving method, and the Prescale Dental System. MATERIAL AND METHODS: From the years 1999 to 2006, a total of 30 completely edentulous patients in a single arch were selected from the Yonsei University Dental Hospital, Department of Prosthodontics and Implant Clinic in Seoul, S. Korea. Patients were divided into 3 groups of 10 each. Group HR was restored with fixed-detachable hybrid prostheses with resin teeth. Group FP had fixed dentures with porcelain teeth while Group CD had a complete denture. The masticatory performance was compared between 3 groups. RESULTS: The results showed a significant improvement in oral health-related quality of life with dental implants compared to a conventional denture in GOHAI comparison. Overall, implant prostheses showed a higher masticatory performance ($S_{50}$) and maximum bite force compared with conventional dentures (P < .05) but no differences between different implant supported prostheses (P > .05). CONCLUSION: Within the limitation of this study, the numbers of implant and material of implant prostheses does not appear to impact patient satisfaction, masticatory performance or bite force.

• Journal of Korean society of Dental Hygiene
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• v.13 no.1
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• pp.146-157
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• 2013

Objectives : The purpose of this paper is to analyze the effects of short-term oral health care on children at community care centers, in order to allow them to maintain good oral health. Methods : The SPSS (Statistical Package for Social Science), Window Version 18.0 was used to analyze the data for the children's present conditions of oral health; their ability to maintain good oral health; their general knowledge about oral health; changes in their oral health awareness; habit formations concerning oral health; and the satisfaction level of oral health education. Results : 1. While the average number of teeth before the program is 19.84(6.19), that of teeth after the program is 21.33(6.10). 2. Average test scores on oral health information of post-program are improved more than those of pre-program. 3. The 8th measurement of O'Leary plaque index is 3.27, which shows significant changes. 4. Satisfaction level with the program is 4.75(0.45), which shows that children are satisfied with the program. Conclusions : The paper shows that in order to maintain the oral health of children at community care centers, their habit formation and practice for the oral health is important. It also shows that cooperation among communities and public health centers is important to develop various oral health education programs like the program.

• Journal of Dental Rehabilitation and Applied Science
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• v.39 no.3
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• pp.158-167
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• 2023

As digital technology has advanced in the field of dentistry, the use of computer-aided design/computer-aided manufacturing (CAD/CAM) has brought changes to the stages of dental treatment. The use of CAD/CAM technology in dental restoration offers clinical efficiency and convenience by reducing production time and appointment intervals, while also simplifying the fabrication process to reduce errors. In this case, digital replication and printing of temporary teeth were used to aid a patient with complex medical histories and physical disabilities. The final impression obtained with silicone impression material included information on the vertical dimension, centric relation, and the angle and length of the anterior teeth, which shortened the production time and appointment intervals and increased patient satisfaction. The final restoration was fabricated using milling and monolithic disc techniques, demonstrating appropriate stability, retention, and support, resulting in functional and aesthetic satisfaction.

• Journal of Korean society of Dental Hygiene
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• v.11 no.5
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• pp.629-636
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• 2011

Objectives : The purpose of this study was to determine the effects of oral health on the quality of life of elderly patients with dentures or implants. It is our intention that through this analysis we can aid seniors in making the choice between dentures or implants, considering future masticatory function and the likely effects of this decision on the patients quality of life. Methods : This survey was conducted between November 1, 2010 and November 25, 2010, in Kyunggi-Do, whasung city. The research was carried out at one public health center, among elderly patients. 105 seniors were surveyed using the direct interviewing method, oral health related quality of life was measured by the Philadelphia Geriatric Center(PGC) Morale Scale. Collected data was examined using the SPSS 13.0 program, using frequency, mean, and standard deviation analysis, T-test and $x^2$ test. Results : The number of residual teeth for patients who have implants was $20.45{\pm}5.85$, while among those patients with dentures the number was considerably lower, $8.11{\pm}7.66$(p<0.05). The results of patients masticatory function, was $28.13{\pm}2.40$ for those with implants, and $25.35{\pm}4.15$ with dentures. The results were better for those with implants. Among implant patients overall satisfaction was rated $25.21{\pm}3.63$, higher than for those with dentures $20.20{\pm}6.79$(p<0.05). Quality of life was scored higher for patients with implants($12.76{\pm}2.61$) compared to those with dentures($10.47{\pm}3.52$)(p<0.05). The subjects masticatory function was highly related to the number of remaining teeth and greater masticatory function had a positive effect on patients quality of life and life satisfaction. Conclusion : Dental treatments such as dentures and implants will have a great influence on patients quality of life and life satisfaction. Implants can improve the oral health related quality of life and satisfaction and the general quality of life more than denture therapy.

• Korean Journal of Human Ecology
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• v.18 no.2
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• pp.477-489
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• 2009

In this study, elementary school students' satisfaction in school food service and their dietary behaviors were investigated, based on survey performed on 453 elementary school students (233 boy and 221 girl students) in the range of 4th grade to 6th grade. 85.7% of the students had agreed to the necessity of school food service. The point of overall satisfaction in school food service was $3.53{\pm}0.83$. The highest satisfactory factor was menu of school food service$(3.64{\pm}0.77)$, while the lowest satisfactory was service$(3.41{\pm}0.85)$. The point of boy students' satisfaction in menu(p<0.05), sanitation & facility(p<0.001), and service(p<0.05) of school food service was higher than girl students'. The students' responses indicate that: 36.9% of the students wash their hands before meal; 19.9% of the students brush their teeth after meal; 36.1% of the students arrange their table after meal; 22.1% of the students do not disturb others during their meal. 46.5% of the students always have meals pleasantly, while 22.8% of the students have meals without any particular feelings. 74.6% of the students always eat proper amount. 51.3% of the students turned out to eat snacks between meals out of hunger (50.7%) once a day with their friends(59.8%). 61.8% of the students believe that their tastes are affected by their parents and 57.8% of the students are aware of their unbalanced diet to be corrected. In summary, to provide satisfactory school food service for students, the improvements in the facilities and hygienic standard and the taste and nutrition have to be preceded, and the students have to be advised about the healthy dietary habits and the hazard of biased diet.