• Journal of Korean Dental Science
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• 제6권2호
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• pp.78-86
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• 2013

Purpose: The purpose of this study was to assess the effects of lip anteroposterior position based on esthetic line on the perceived attractiveness. Materials and Methods: We selected a 20s female standard lateral photograph which was within average range of cephalometric analysis, modified lips anteroposterior position based on esthetic line into 5 pictures. This study investigated and compared the preference of facial profile among the groups; male : female and dental relevance: non-dental relevance. Total 255 judges (male : female=138 : 117, relevant : non-relevant=159 : 96) who were 20s to 30s were asked to rate these photographs based in lip attractiveness using visual analogue scale (VAS). Result: All groups had similarity the average of VAS of moved backward lips 2 mm were highest and moved forward lips 4 mm were lowest. Comparing between male group and female group, there were significant differences in all pictures except for original which was not modified. In the dental groups, moved forward lips 2 mm had significant difference and the average in dental relevant group were lower than non-relevant group in lip protrusion. Conclusion: The preference about lip protrusion was similar irrespective of dental knowledge or gender. All groups preferred retrusion of lips to protrusion of lips. In female group, they had higher the average of VAS. In relevant group, they disliked protrusion rather than retrusion of lips significantly.

• 대한치과보철학회지
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• 제58권4호
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• pp.369-377
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• 2020

점진적으로 진행되는 치아의 생리적인 마모는 정상적 현상이지만, 과도한 병적 마모는 기능장애와 교합평면의 부조화 및 심미성의 상실을 야기한다. 과도한 치아마모로 인해 구치부 지지의 상실 및 보철수복의 공간이 부족한 경우 수직교합고경 증가를 동반한 전악 수복이 고려될 수 있다. 본 증례는 잔존치의 과도한 치아마모와 기울어진 치은정점, 전치부 과개교합을 보이는 환자에서 교합거상을 통해 교합고경을 회복하였으며 부족한 구치부 보철 수복공간을 확보하고, 전치부 심미성과 교합관계를 개선할 수 있는 수직교합거상을 동반한 전악수복을 시행하였다. 체계적인 분석과 진단을 통해 임시보철물을 제작하여 충분한 적응기간을 거쳤으며, 이중 스캔방식을 통하여 단일구조 지르코니아 블럭을 사용해 최종보철물로 이행하여 기능적이고 심미적인 구강회복 결과를 얻었기에 이를 보고하고자 한다.

• 대한치과교정학회지
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• 제5권1호
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• pp.57-63
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• 1975

For the purposes of augmentation of the aid for case analysis and diagnosis of malocclusion, a roentgenocephalometric study was made from 84 Korean adolescences. The Subjects consist of 42 males and 42 females aged from 17 to 20 years with normal occlusion and acceptable facial appearance. The author measured 18 angles and 14 linear distances as suggested by Jarabak. The following results were obtained. 1) Each linear measurement of the males' skull was greaten than that of the females. 2) The posterior to anterior facial height was $69.2\%$ in the males and $67.1\%$ in the females. 3) In the relationship of upper lip to esthetic line, the lip of females was more behind than that of males. 4) Saddle angle was $124.7^{\circ}$, articular angle was $148.7^{\circ}$, genial angle was $119.4^{\circ}$ and upper and lower genial angles were $45.1^{\circ}\;(N-Go-a^{\circ})$ and $74.2^{\circ}\;(N-Go-Me^{\circ})$. 5) The ratio of mandibular body to anterior cranial base was about 1:1. 1. 6) The angulations of $SNA^{\circ},\;SNB^{\circ}\;and\;SNP^{\circ}$ were as follows; $SNA^{\circ},\;80.3^{\circ},\;SNB^{\circ},\;79.8^{\circ},\;SNP^{\circ},\;81.1^{\circ}$. 7) The angle of the sella-nasion plane to the mandibular plane $(SNG^{\circ}Me^{\circ})$ was $32.0^{\circ}$ and that of the occlusal plane to the mandibular plane was $18.2^{\circ}$. 8) The angle of the maxillary central incisor to the sellanasion plane $(1-SN^{\circ})$ was $105.6^{\circ}$. That of the mandibular central incisor to the mandibular plane $(1-GoMe^{\circ})$ was $94.0^{\circ}$, and the interincisal angle $(1\;to\;1^{\circ})$ was $127.6^{\circ}$. 9) The linear distance from incisal edge of upper central incisor to facial plane was 8.0mm and that of lower central incisor was 4.6mm. 10) In the relationship of the lower lip to the esthetic line, the lower lip was 0.2mm front of the esthetic line.

• Restorative Dentistry and Endodontics
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• 제15권1호
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• pp.217-227
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• 1990

The purpose of this study was to evaluate the marginal leakage of esthetic restorative materials according to the filling method in class V cavities. 60 cavities were prepared on buccal surface for dye penetration test and divided into 5 experimental groups according to the filling methods of esthetic materials: group 1 was filled with glass ionomer cement, group 2, 3 and 4 were filled with the chamfer, knife edge and butt joint shaped glass ionomer cement respectively and silux plus/scotchbond 2$^{(R)}$ by sandwich technique, group 5 was lined with Dycal$^{(R)}$ and filled with silux plus/scotchbond 2$^{(R)}$ by bulk filling technique. All the specimens were then thermocycled in a range of $4^{\circ}C-60^{\circ}C$ by and immersed in 2% methylene blue dye solution for 24 hours, and sectioned mesiodistally with carborundum disk into two parts under water spray. All the specimens were observed at the occlusal and gingival margins and statistical analysis was performed. The obtained results were as follows : 1. At the occlusal margins, group 2, 3, 4 and 5 showed less marginal leakage than group 1 (p<0.05) and there were not significant differences among group 2, 3, 4, and 5. 2. At the gingival margins, group 5 showed the least marginal leakage and group 4 and 5 showed less marginal leakage than group 1, 2 and 3 (p<0.05). 3. In the laminated groups, group 4 showed less marginal leakage than group 2 and 3 at the gingival margins. 4. In comparison to the occlusal and gingival margins, all groups showed less marginal leakage at the occlusal margins than at the gingival margins (p<0.05).

• 융합정보논문지
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• 제10권7호
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• pp.240-248
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• 2020

본 연구는 NCS 기반으로 개편된 미용사(피부) 검정형 자격과 과정평가형의 자격시험에 관한 선행연구의 체계적 문헌 고찰을 통해 국가기술자격 미용사(피부) 종목 과제 및 평가방법에 대해 비교·분석 하였다. 검정형 자격은 암기 위주의 이론시험과 단순 기능 반복을 통한 작업능력을 기반으로 평가가 이루어져 자격과 일이 상호 연계되지 않고 있고, 과정평가형 자격은 상대적으로 시험 집행을 시작한 기간이 짧은 상태로 시행기관에서의 자체 내부평가의 신뢰성 저하 문제가 지속적으로 나타나고 있다. 향후 현재 평가에 반영되고 있지 못하는 다양한 능력 단위를 적용하여 실기시험 평가 항목에 포함할 수 있는 상위자격의 신설 및 실기시험 평가방법 개선 등을 통해 현장과의 연계성을 제고시키고 관련 분야의 현장 적응 및 재교육 시간 단축 등의 자격제도 혁신이 필요한 것으로 사료된다.

• Imaging Science in Dentistry
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• 제52권2호
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• pp.197-207
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• 2022

Purpose: This study evaluated the associations of the dental arch form, age-sex groups, and sagittal root position (SRP) with alveolar bone thickness of the maxillary central incisors using cone-beam computed tomography (CBCT) images. Materials and Methods: CBCT images of 280 patients were categorized based on the dental arch form and age-sex groups. From these patients, 560 sagittal CBCT images of the maxillary central incisors were examined to measure the labial and palatal bone thickness at the apex level and the palatal bone at the mid-root level, according to the SRP classification. The chi-square test, Kruskal-Wallis test, and multiple linear regression were used for statistical analyses. Results: Significant differences were found in alveolar bone thickness depending on the arch form and SRP at the apex level. The square dental arch form and class I SRP showed the highest bone thickness at both levels of the palatal aspect. The taper dental arch form and class II SRP presented the highest bone thickness at the apex level of the labial aspect. No association was found between the dental arch form and SRP. Elderly women showed a significant association with thinner alveolar bone. Age-sex group, the dental arch form, and SRP had significant associations with alveolar bone thickness at the apex level. Conclusion: The patient's age-sex group, dental arch form, and SRP were associated with alveolar bone thickness around the maxillary central incisors with varying magnitudes. Therefore, clinicians should take these factors into account when planning immediate implant placement.

• 복식문화연구
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• 제19권2호
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• pp.389-401
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• 2011

Jewelry is not only symbolic meaning of the fortune, but also it completes or redound to fashion style and its image in this modern times which diverse culture live together. The instinct for adornment which is long as human cultures is developed as Artwork genuinely to show effective self-expression that is aesthetic and distinguished. It would be from that it made by using metallic materials. In contemporary fashion, jewelry takes so much importance that it sets the trend. They carry a sensible message that expresses esthetic desire and originality. Among the so many kinds of jewelry, especially the necklace is located beneath the face and linked as a part of fashion, so it frequently has showed in Fashion Collection, We tend to study the effect of that the form, hue and character of materials of necklace that is expressed in fashion collection influence fashion image. The method of this study is comprised with precedent studies and analysis of necklace photos in fashion collection. For the analysis of data, we implement content analysis and statistical analysis using SPAW Statistics 18. As the result, fashion and jewelry effect interactively and share esthetic forms, in the view of total image necklace image is more strong than fashion image. Because the hue and the form of necklace take a great role to make fashion image with the sense of its eyesight, its effective coordination go up the delicate feelings of the fashion. So, it is very effective things that we predict the trend of fashion, then, coordinate with well-matched necklace.

• 대한치과보철학회지
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• 제54권4호
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• pp.438-444
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• 2016

상악 전치부의 보철 수복은 치과 영역의 심미 치료에 있어서 매우 중요한 치료이다. 상악 전치부의 보철 수복을 통해 치아의 형태나 배치, 색상 등을 대체함으로써 심미성의 개선이 가능하다. 이러한 치료를 계획할 때, 안모 및 치아와 입술과의 관계 분석, 치아와 치은의 분석 등을 통해 환자마다 개별적인 고려 사항에 대한 접근이 필요하다. 이러한 고려 사항 중 치아 주위 치은 구조를 적절히 형성하는 것은 매우 중요한데, 치은 변연의 높이, 치은 정점의 위치, 치간 유두의 재건, 출현 윤곽, 좌우 측의 대칭성 등을 고려해야 한다. 하지만 치은 구조가 항상 적절히 형성되어 있는 것은 아니기 때문에, 보철 치료 시 비심미적인 치은 구조의 개선을 위한 처치를 계획해야 하는 경우가 많다. 이 증례에서는 치은 외형의 결함으로 인한 비심미성을 개선하기 위해 치료를 시행한 환자들에서 외과적 처치 없이 각각 pink porcelain, 치은 연하 형태의 형성, 가공치 기저부 형태의 조정을 통해 만족할만한 심미적인 결과를 얻었기에 보고하고자 한다.

• 대한치과보철학회지
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• 제29권2호
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• pp.129-145
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• 1991

The purpose of this study was to analyze the stresses and displacements of various esthetic restorations and abutment teeth. The finite element models of central incisor were divided into four groups according to the types of restoration. Three load cases were applied; 1) 45 degrees on the incisal edge, 2) horizontal force on the labial surface, and 3) 26 degrees diagonally on the lingual surface. Material property, geometry, and load conditions of each model were inputed to the two dimensional finite element program and stresses and displacements were analyzed. Results were as follows; 1. In the cases of porcelain fused gold ann and porcelain laminate venner, stresses were equally distributed in supporting abutment tooth. 2. The metal coping of porcelain fused gold u and collarless porcelain fused gold crown functioned as a good stress distributor. 3. When the horizontal load applied, the highest tensile and compressive stresses were seen in the cervical margin of restoration and the dentin of the abutment tooth. 4. The highest displacement of restoration was seen when load was applied at an mee of 26 degrees diagonally in lingual surface of tooth in centric occlusion. 5. The influence of loading direction on the stresses and displacements in the restoration was greater than that of various design. 6. The possibility of fracture was highest in porcelain jacket crown.

• 한국의류학회지
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• 제25권7호
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• pp.1203-1214
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• 2001

This study is to analyze the competition structure and the brand image in underwear market, and to examine the relationships between brand preference and evaluation criteria on purchase among the age of 20's females. The samples are composed of 591 females aged 20's in cheong-ju city. For data analysis, MDS, AVOVA, t-test were used. The results of this study are followed as; Brand group I [BYC·Try·Vicman] was positioned on the dimensions of casual/classic image, brand group II [BodyGuard·DonandDons·schaolphio·x-zon] was positioned on the dimension of casual/fashionable image, and brand group III [Wacor·Venus·Ravora] was posiotioned on the dimension of elegant image. Brand preference in group III was the highest, and brand preference had significant difference by age, occupation, and education level. Customers who prefer the group I evaluated useful and management attributes the most and customers who prefer the group II, considered economical and esthetic arributes for purchasing underwaer. Also, customers who prefer the group III, evaluated the esthetic appreciational quality, the functional quality, and the brand-symbolic quality. Also, the influence of advertisement is most effective to purchase underwears. A main source of information is the broadcast medium such as TV or radio. The main store types on purchase were types like a department store and underwear special store.