• 감성과학
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• 제7권2호
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• pp.195-201
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• 2004

본 연구에서는 얼굴의 물리적 특성과 얼굴의 성격인상과의 관계에 대하여 검토하였다. 피험자들에게는 일본인 남녀의 정지화면이 제시되었다. 피험자는 31개의 성격특성 항목에 대하여 7점 척도를 사용한 평가를 실시하였다. 요인 분석의 결과 $\ulcorner$사회적 바람직성$\lrcorner$, $\ulcorner$활동성$\lrcorner$, $\ulcorner$지성$\lrcorner$의 3요인이 추출되었다. 각각의 사진 자극에 대하여 얼굴 부분의 물리적 특성과 각 요인 득점과의 관계를 조사한 결과 남성의 얼굴에서는 눈에 대한 특징 지표와 $\ulcorner$지성$\lrcorner$ 요인이 여성의 얼굴에서는 뺨에 대한 지표와 $\ulcorner$지성$\lrcorner$ 요인, $\ulcorner$사회적 바람직성$\lrcorner$ 요인이 관계가 있었다. 이러한 결과는 얼굴의 성격인상 평가에는 그 얼굴이 남성인가 여성인가에 의해, 혹은 피험자의 성별에 의해 판단의 기초가 되는 특징이 상이함을 시사하고 있다.

• 한국의류학회지
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• 제23권5호
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• pp.703-714
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• 1999

The purpose of the present study was to identify the effect of ritual dress on korean catholic priest's impression. The subject consisted of 415 undergraduated students. The experimental materials developed for this study were 3 type color photographs stimuli of catholic priest model and 7-point sementic differential scale composed of 49 bipolar adjectives representing personal traits. The data were analyzed by factor analysis. the major findings drawn from this study were as follows : Four factors emerged to account for the dimentional structure of the impression of each dress style. Four factors were titled as open-hearted mind symbolic meaning nature of priest potency. The open-hearted mind factor was the largest throughout the 3types ritual dress. Casula had a positive effect on open-hearted mind nature of prist and negative on symbolic meaning potency. Sutan had a positive effect on open-hearted mind potency nature of priest and negative on symbolic meaning. Black suit with roman collar had a positive effect on open-hearted mind symbolic meaning nature of prist and negative on potency, Therefore the ritual dress had significant effect on korean catholic priest' impressin of open-hearted mind symbolic meaning nature of prist activity and potency

• The Journal of Advanced Prosthodontics
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• 제11권5호
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• pp.271-279
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• 2019

PURPOSE. The newest technologies for digital implant impression (DII) taking are developing rapidly and showing acceptable clinical results. However, scientific literature is lacking data from clinical studies about the accuracy of DII. The aim of this study was to compare digital and conventional dental implant impressions (CII) in a clinical environment. MATERIALS AND METHODS. Twenty-four fixed zirconia restorations supported by 2 implants were fabricated using conventional open-tray impression technique with splinted transfers (CII group) and scan with Trios 3 IOS (3Shape) (DII group). After multiple verification procedures, master models were scanned using laboratory scanner D800 (3Shape). 3D models from conventional and digital workflow were imported to reverse engineering software and superimposed with high resolution 3D CAD models of scan bodies. Distance between center points, angulation, rotation, vertical shift, and surface mismatch of the scan bodies were measured and compared between conventional and digital impressions. RESULTS. Statistically significant differences were found for: a) inter-implant distance, b) rotation, c) vertical shift, and d) surface mismatch differences, comparing DII and CII groups for mesial and distal implant scan bodies ($P{\leq}.05$). CONCLUSION. Recorded linear differences between digital and conventional impressions were of limited clinical significance with two implant-supported restorations.

• 한국응용과학기술학회지
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• 제38권6호
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• pp.1654-1666
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• 2021

본 연구에서는 뷰티메이크업의 입술 디자인에 따른 인상형상, 선호 입술과 그 이유를 실증분석 하였다. 연구방법은 설문조사법으로 SPSS프로그램을 활용하였다. 연구 결과 입술의 색상과 형태가 인상 형성에 미치는 유의미한 영향을 확인하였으며 입술 화장에 관한 현대인들의 시각을 규명 할 수 있었다. 가장 선호하는 입술색상은 레드, 선호하는 입술의 형태는 표준형이었다. 요인분석 결과 입술 색상 중 레드는 유능성요인이 핑크색상은 사교성 요인이 가장 높게 나타났다. 본 연구가 뷰티디자인의 기초자료로서 활용되기를 기대한다.

• 대한치과기공학회지
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• 제37권4호
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• pp.213-218
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• 2015

Purpose: The purpose of this study compared of reproducibility of prepared tooth impression scanning utilized with white and blue light scanners. Methods: To evaluate reproducibility with white and blue light scanners, the impression of premolar were rotated by $10^{\circ}{\sim}20^{\circ}$ and scanned. These data were compared with the first 3-D data (STL file), and the error sizes were measured (n=5). Independent t test was used to evaluation the reproducibility of impression of premolar with white versus blue light scanners through discrepancies of mean, RMS (${\alpha}=0.05$). Results: Discrepancies of mean with regard to reproducibility were $11.2{\mu}m$, $5.8{\mu}m$, respectively, with white and blue light scanners (p<0.047). And discrepancies of RMS with regard to reproducibility were $33.4{\mu}m$, $18.8{\mu}m$, respectively, with white and blue light scanners (p<0.045). Conclusion: Our results indicate a good reproducibility of prepared tooth impression digitized with blue light scanner more than that with white light scanner.

• The Journal of Advanced Prosthodontics
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• 제9권3호
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• pp.182-187
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• 2017

PURPOSE. Vinyl polyether silicone (VPES) has a different composition from other elastomeric impression materials as it combines vinyl polysiloxane (VPS) and polyether (PE). Therefore, it is important to study its properties and behavior under different test conditions. This study investigated the dimensional stability of 5 VPES consistencies when stored for up to 2 weeks, with and without using a standard disinfection procedure. MATERIALS AND METHODS. 40 discs of each VPES consistency (total 200) were made using a stainless steel die and ring as described by ANSI /ADA specification No. 19. 20 discs of each material were immersed in a 2.5% buffered glutaraldehyde solution for 30 minutes. Dimensional stability measurements were calculated immediately after fabrication and repeated on the same discs after 7 and 14 days of storage. The data was analyzed using two-way ANOVA with a significance level set at ${\alpha}=0.05$. RESULTS. The discs mean contraction was below 0.5% at all test times ranging from $0.200{\pm}0.014$ to $0.325{\pm}0.007$. Repeated measures ANOVA showed a statistically significant difference after 2-week storage between the disinfected and non-disinfected groups (P < .001). Although there was no statistically significant difference between the materials at the time of fabrication, the contraction of the materials increased with storage for 1 and 2 weeks. CONCLUSION. The dimensional changes of VPES impression discs after disinfection and prolonged storage complied with ANSI/ADA standard. The tested VPES impression materials were dimensionally stable for clinical use after disinfection for 30 minutes in glutaraldehyde and storage for up to 2 weeks.

• 대한치과보철학회지
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• 제36권3호
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• pp.496-505
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• 1998

The purpose of this study was to evalute the effect of immersion disinfection on the dimensional stability of rubber impression materials. The metallic master model was made in order to simulate the intraoral arch form. Impressions were made from four impression materials (Exaflex, Extrude, Reprosil, Impregum-F) and immersed in three disinfectant solutions (Wydex, Vi-Pon, Potadine). Casts from the impressions were measured according to the interpreparation distance. The A-B and The B-D abutment distance were compared with the control group and disinfected groups. The results were as follows; 1. The measurements of the stone cast increased relative to the master model and there was a significant difference (P<0.05). 2. The relative dimensional change of the stone cast as compared with master model ranged from 0.10% to 0.56% in the A-B distance and ranged from 0.04% to 0.27% in the B-D distance. 3. The dimensional change of the disinfected groups as compared with the control group was significantly different in the three impression materials except for Impregum-F (P<0.05). 4. The relative dimensional change of the disinfected groups compared with the control group ranged from 0% to 0.20% in the A-B distance and ranged from -0.09% to 0.11% in the B-D distance. These results suggest that immersion disinfection of rubber impression materials by chemical disinfectants causes very small dimensional change and the change is clinically acceptable for prothesis fabrication

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2009년도 학술대회
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• pp.1218-1224
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• 2009

온라인 3D 게임에 기원을 두던 3D 가상공간은 오늘날 3D 기술의 발달로 점점 현실과 유사하게 구현되어 사회성이 강조된 공간으로 변화하고 있다. 따라서 사용자들은 3D 가상공간에서도 현실세계와 똑같이 의미 있는 인간관계를 갖길 원하게 되었고 3D 가상공간에서 인상의 중요성이 높아졌다. 이에 본 연구는 웹사이트 기반의 사이버 공간에서의 인상 차원과 비교되는 3D 가상공간에서의 인상차원을 제시할 것이다. 2D 기반의 가상공간과 구분되는 3D 가상공간만의 인상을 도출함으로써 전 매체에 걸친 인상 연구에 대한 바탕이 되는 이론으로서의 가치를 지니며, 향후 지속적인 기술발전에 따라 변화될 3D 가상공간 상에서의 대인관계 및 문화적, 사회적 현상에 대한 연구의 기반이 될 수 있다.

• 한국치위생학회지
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• 제1권2호
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• pp.171-180
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• 2001

The purpose of this study was to compared with the properties of commercial polyvinyl siloxane impression materials on the Korean product and the other country one. The materials used in this study were 5 hydrophilic polvinyly siloxane impression materials of light body automixing type (Perfect-F, Handae Chemical, Korea; Examix, GC, Japan; Contrast, VOCO, Germany; Express, 3M, U.S.A; Extrude, Kerr, U.S.A.). Specimens of each impression material were fabricated from a mold with dimensions identical to that specified in ASTM D624-91 and were subjected to tensile lode at 500 mm/min until failure for tear strength. Properties of consistency, strain in compression, recovery from deformation, detail reproduction and linear dimensional change were tested according to the testing methods of the ISO specification no.4823(1992). From this study, the follow ing results were obtained 1. The tear strength values were high ET(3.4kN/m), EP(3.4kN/m), PF(3.0kN/m), CT(3.0kN/m), but the lowest was EM(2.2kN/m)(p<0.05). 2. In the consistency, CT(47 mm) had the highest value, followed by PF(42.1 mm), ET(41.2 mm), and EM(39.6 mm), EP(39.2 mm)(p<0.05). It means more flow that the consistency value is high. 3. The strain in compression values were high followed by EM(5.8%), PF(52%), CT(4.6%), ET(4.1%), EP(2.9%)(p<0.05). 4. In the recovery from deformation, ET(99.95%) and PF(99.90%) had the highest value, followed by EP(99.75%), EM(99.74%) without statistical signification, CT(99.64%) had the lowest value(p<0.05). 5. Detail reproduction reappeared to line $20{\mu}m$ all products. 6. The linear dimensional change was a little shrinked all products. and there were not statistical signification (p>0.05). All products were satisfied the ISO specification.

• 한국치위생학회지
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• 제12권6호
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• pp.1082-1089
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• 2012

Objectives : The aim of this study was to determine the accuracy of digitized stone models, impression materials compared to the master model and the reliability of the computer aided analysis. Methods : A master model(500B-1, Nissin dental product, Japan) with the prepared lower full arch tooth was used. Ten vinyl polysiloxane impressions(Examix$^{(R)}$, GC Industrial Corp, Japan) of master model were taken and type IV stone(aesthetic-base gold$^{(R)}$, Dentona, Germany) were poured in stone models. The linear distance between the reference points were measured and analyzed on the Delcam Copycad$^{(R)}$(Delcam plc, UK). The t-student test for paired samples was used for statistical analysis. Results : The mean differences to master model for stone model and impression material were 0.11~0.19mm, and 0.19~0.29mm, respectively. There were statistical differences in dimensional accuracy for full arch impression between master model and stone model/impressions(p<.05). Conclusions : Two different scanning methods showed clinically acceptable accuracy of full arch digital impression produced by them. These results will have to be confirmed in further clinical studies.