소아환자에 있어서 외상방지를 위한 마우스가드의 치험례

김경희,김종수,유승훈 大韓小兒齒科學會 2005 大韓小兒齒科學會誌 Vol.32 No.3

구강악안면 영역의 외상은 치아파절, 탈구, 골절, 연조직 손상을 일으킬 수 있으며, 뇌진탕의 원인이 되기도 한다. 미국과 일본에서는 contact sports일부에서 마우스가드의 장착이 의무화되어 있으나, 현재 한국에서는 운동 시 마우스가드의 장착을 거의 볼 수 없는 실정이다. 마우스가드는 크게 ready-made type과 custom-made type으로 나눌 수 있다. Ready made type의 마우스가드에는 형태가 일정하고 조정이 곤란한 stock mouthguard와 다소 조정이 가능한 mouth formed mouthguard가 있다 Custom-made type의 마우스가드는 적합성이 뛰어나며 정확한 교합, 하악위를 재현할 수 있다는 장점이 있다. 마우스가드는 입술과 구강연조직을 치아로부터 보호하고, 치아에 가해지는 충격을 분산시켜 파절이나 탈구가능성을 줄여준다. 또한, 악골의 골절과 변위를 방지하고 충격을 흡수한다. 성장기 아동의 경우 치아손상의 30% 정도가 스포츠나 레포츠에 의한 것이라는 보고가 있으며 이 경우 치아나 잇몸은 물론 성장 중인 치조골에 악영향을 주게 된다. 이 때 외상처치는 어려우며, 그 예후 또한 불명확하다. 따라서 성장기 아동의 마우스가드 장착은 외상 예방차원에서 중요하다. 이에 저자는 단국대학교 치과병원에 내원한 환아에게 ERKODEN^(?)사의 ERKOFORM-RVE를 이용한 흡입성형 마우스가드(vacuum type mouthguard)를 적용한 임상경험을 보고하는 바이다. Dentofacial trauma can result in tooth fracture, avulsion, facial bone fracture. The Unites states and Japan mandated the use of mouthguards for contact sports. But, Korean didn't. Mouthguards divided into ready-made type and custom-made type. Mouthguards protect the lips, intraoral soft tissues, teeth and provide the mandible with resilient support to prevent jaw fracture and dislocations. Sports-related accidents have been reported to be one of the most common causes of dentofacial trauma. Sports trauma of involving teeth with incomplete root formation cause long chair time, multiple visit, economic considerations, additional dental services. So, mouthguards can offer considerable protection against sports-related trauma.

패션에 나타난 감성과 감정의 조형적 특성 연구

김유진,이경희 한국의류학회 2004 한국의류학회지 Vol.28 No.1

The purpose of study was to provide effective design strategy and distinguish productions for the consumer′s emotion satisfaction by analyzing formative properties of fashion sensibility and emotion. 54 photos of contemporary costume have been selected which represented the Izard′ DES. The questionnaire consisted of bi-polar 25 pairs adjective scale of fashion sensibility and 18 noun scale of emotion was distributed to 970 male and female living in Pusan area. The data were analyzed by GLM using the statistic SPSS package. The major findings of this research wre as follows. 1. In the clothing formative properties following fashion sensibilities, aestheticism shows significant differences in the silhouette and texture, maturity in the silhouette and color, character in the texture and decoration and feminity in the pattern and color. 2. In the clothing formative properties following emotions, negative emotion shows significant differences in the pattern and silhouette, distress·fear in the silhouette and pattern, arousal in the texture and color, shame in the color and texture and enjoyment in the silhouette and pattern. 3. In the fashion sensibility and emotion following clothing formative properties, each formative property shows differences in fashion sensibility and emotion. This study result will be utilized in the clothing design development in special usage like theatrical costume, discriminated display and advertisement stratge.

Self-etching primer를 이용한 교정용 브라켓 부착시 전단결합강도와 파절양상에 관한 비교연구

김유경,이진우,차경석 대한치과교정학회 2004 대한치과교정학회지 Vol.34 No.4

본 연구의 목적은 산부식과 전처리 과정을 결합하여 접착 단계를 단순화시킨 self-etching primer의 임상적인 유용성을 판단하고자, self-etching primer로 브라켓을 접착하는 방법과 기존의 37% 인산으로 부식 하여 접착하는 방법을 사용하여, 광중합시 사용되는 광원 및 브라켓 종류에 따른 전단결합강도와 접착파절양상에 관하여 비교 연구하는 것이다. 사람의 상하악 소구치를 포매하여 만든 시편을 부식 및 전처리 방법에 따라 각각 37%인산으로 산부식 후 Transbond XT primer를 사용하여 접착한 군과 Transbond Plus self-etching primer를 사용하여 접착한 군으로, 광원 종류에 따라 가시광선과 plasma arc light을 이용하여 중합한 군으로 나누었고, 브라켓 종류에 따라 금속브라켓과 세라믹 브라켓을 사용하여 접착한 군으로 분류하여 각 군간의 전단결합강도와 접착파절양상을 관찰하여 다음과 같은 결과를 얻었다. 1. 광원과 브라켓 종류가 동일한 조건일 때, self-etching primer를 사용하여 접착한 군과 XT primer를 사용하여 접착한 군간의 전단결합강도는 통계적으로 유의한 차가 없었다. 2. 금속브라켓을 접착한 경우, 광원과 부식 및 전처리 방법에 따른 전단결합강도는 통계적으로 유의한 차가 없었다. 3. Self-etching primer와 XT primer를 사용하여 접착한 군 모두에서 세라믹 브라켓을 사용하여 접착한 군의 전단결합강도는 금속브라켓을 사용하여 접착한 군보다 통계적으로 유의하게 컸다(p<0.001). 4. 접착제 잔류지수는 self-etching primer를 사용하여 접착한 군과 XT primer를 사용하여 접착한 군에서 통계적인 유의한 차가 없었으며, 세라믹 브라켓을 사용하여 접착한 군에서 금속브라켓을 사용하여 접착한 군보다 유의하게 커서, 법랑질-레진 접착 계면 부위의 파절이 더 많은 것으로 나타났다. 이상의 결과로 미루어 보아 Transbond Plus self-etching primer를 사용하여 브라켓을 접착하는 것은 적절한 결합강도를 얻으면서도 사용이 간편하고 시술 시간을 단축시킬 수 있으므로 임상적으로 유용할 것으로 판단된다. A self-etching primer that combines the etchant and primer in one chemical compound saves time and should be more cost-effective to the clinician and patient. The purpose of this study was to evaluate the clinical effectiveness of a self-etching primer by measuring shear bond strengths according to various conditions and observing adhesive failure patterns. For this investigation, 120 upper and lower premolars extracted for orthodontic purposes were used and randomly divided into six groups of twenty teeth each. Human premolars were embedded in a metal cylinder with orthodontic resin. Metal brackets and ceramic brackets were bonded with XT primer and self- etching primer by means of XT adhesive. Upon curing, plasma arc light and visible light were used. After bonding, the shear bond strength was tested by Instron universal testing machine, and the amount of residual adhesive that remained on the tooth after debonding was measured by stereoscope and assessed with an adhesive remnant index. The results were as follows: 1. When brackets were bonded, if other conditions remained the same, there was no significant difference in shear bond strength due to the type of primer - either self-etching primer or XT primer. 2. When metal brackets were bonded, there was no significant difference in shear bond strength according to the source of light - plasma arc light or visible light - and type of primer. 3. There was a very significant difference in shear bond strength according to the type of brackets - metal or ceramic brackets. The shear bond strength of ceramic brackets was stronger than metal brackets. 4. When the adhesive failure patterns of metal brackets bonded with self-etching primer were observed by using the adhesive remnant index, the bond failure of the metal bracket occurred more frequently at the bracket-adhesive. The failure of the ceramic bracket, however, occurred more frequently at the enamel- adhesive interface. The adhesive failure patterns of metal brackets bonded with XT primer observed the same patterns. The above results suggest that self-etching primer can be clinically useful for bonding the brackets without fear of a decrease in shear bond strength.

알코올 의존환자의 인격장애에 관한 연구

김동인,김병조,박유경 大韓神經精神醫學會 2001 신경정신의학 Vol.40 No.3

연구목적 : 본 연구의 목적은 알코올 의존이 없는군과 입원한 알코올 의존군 사이의 인격장애의 유벼율을 알아보고, 여러가지의 축Ⅱ 장애의 범위와 중복을 알아보고자 하였다. 방 법 : 대상은 일반군에서 알코올 의존이 없는 87명과 정신병원에 입원된 알코올 의존환자 94명이었다. 알코올 의존은 DSM-IV에 의거하여 미시건 알코올 의존 선별검사로 진단하였고, 정상군과 환자군 모두 PDQ-4+를 시행하였다. 결 과 : 정상군은 52.3%가 적어도 1개 이상의 인격장애를 가지고 있었으며 한 사람당 평균 1.23개였다. 알코올 의존군은 88.3%가 적어도 1개 이상의 인격장애를 가지고 있었으며 한 환자당 평균 4.26개였다. 결 론 : 본 연구에서는 단일의 "알코올성 인격장애"는 없었다. Objectives : The purpose of this study was to examine the prevalence of personality disorders among non-alcoholics and hospitalized alcoholics and the extent and nature of the overlap between different axis Ⅱ disorders. Methods : Subjects were 87 non-alcoholics in the general population group and 94 alcoholics admitted to psychiatric hospital. Alcohol dependence was diagnosed according to DSM-IV by the MAST, and general group and patients were assessed with the PDQ-4+. Results : In the general population group, 52.3% of non-alcoholics had at least one personality disorder and the average number of personality disorders was 1.23 per person. In the alcohol group, 88.3% of the patients had at least on personality disorder and the average number of personality disorders was .426 per patient. Conclusion : In our study, there is no single "alcoholic personality" emerged.

산화전세정에 따른 표면 Microroughness 및 불량분석에 관한 연구

김경민,유일현,정양희 麗水大學校 産業基術硏究所 1999 産業基術硏究所 論文集 Vol.8 No.-

The purity of wafer surface is an essential requisite for the successful fabrication of VLSI silicon circuits. In the cleaning step, the precleaning(NH₄OH/H₂O₂/H₂O) method has been used. The precleaning process for bare wafer can affect the state of wafer surfaces. It can cause the degeneration of gate oxide layer. For the investigation of this problem, we measured the microroughness of silicon wafer surface using the atomic force microscope(AFM). The microroughness is in the range of 1.1∼1.6Å. The result is increased proportionally to the number of cleaning times. This problem by additional precleaning distributed to edge in the wafer. To avoid th yield drop due to the microroughness, we suggest that the content ratio of precleaning solution is to be at 0.2:1:10 and the cool DI water rinsing should be followed after cleaning step. However, additional cleaning process should be applied carefully to avoid failure even in the optimized precleaning process.

현대패션에 대한 감성과 감정의 관계 연구 (제1보)

김유진,이경희 한국의류학회 2003 한국의류학회지 Vol.27 No.3,4

The purpose of this study was to provide the guidance in more objective and proper clothing design reflecting today's consumers' modes in value consumption by identifying the meaning structure and relationship between fashion sensibility and emotion. The stimulus was 54 photos of contemporary costume which represented the Izard' DES. The questionnaire consisted of bi-polar 25 pairs adjective scale of fashion sensibility and the 18 noun scale of emotion was distributed to 970 male and female living in Pusan area. The data were analyzed by Factor analysis, Correlation analysis and Regression analysis using the statistical SPSS package. The major finding of this research were as follows. 1. Fashion sensibilities consist of estheticism, maturity, character and feminity to represent 57.17% total variance. 2. Emotions consist of negative emotion, distress·afraid, arousal, shame and enjoyment to represent factors. 3. For the relation between fashion sensibility and emotion, they showed significant relationship in most of factors.

패션감성의 측정도구 개발에 관한 연구(제2보)

이경희,김유진 한국의류학회 2003 한국의류학회지 Vol.27 No.5

The purpose of this study was to develop the measurement of fashion sensibility and to verify the validity and utility. The survey has been done 91 photos selected in fashion magazines with 25 semantic differential bi-polar scale. The obtained data were analyzed by MDS, Discriminant analysis and Regression analysis. The major findings of this research were as follows. 1. According to the sensibility positioning, fashion image was classified by 4 group and agreed with constructing factors of fashion. 2. As result of the discrimination analysis, distinguishable fashion sensibility among design elements of clothing was related to refined, pleasant, feel like buying sensibility. 3. As result of the regression analysis, Preference was related to looking good, refined, and sweet, Buying needs related to likable, looking good and natural, Riches related to elegant, neat and refined, Pleasure related to looking good, elegant and bright. 4. The fashion design properties were different regarding Preference, Buying needs, Riches and Pleasure. Preference and Buying needs were related to H-line, similarity color combination, cotton and linen, Riches related to brilliance texture, ruffle and flounces, Pleasure related to fit and sexy design of clothing.

건초 섬유종 1예

문경원,김소연,최유원,명기범,김성현 대한피부과학회 2006 大韓皮膚科學會誌 Vol.44 No.4

초내식성 스테인리스강의 교정용 브라켓에의 적용

추성욱,김경남,김광만,이원유,박용수,이상배 대한치과기재학회 1998 대한치과재료학회지 Vol.25 No.3

Esthetic has become an indispensable factors to consider when choosing a orthodontic fixed appliances. However, most of the brackets used on orthodontics are made of metallic materials because those esthetic alternatives showed several controversies like brittleness, deformation and discoloration. The AISI austenitic classes, 303, 304, 316 and 317 type of stainless steels are frequently used for orthodontic metallic brackets fabrication. The composition of this type of alloy is 18 wt% of chrome, 8 wt% of nickel, 2 to 3 wt% of molybdenum and low carbon contents. They seemed to show relatively good characteristics to fabricate the orthodontic brackets in previous study. But in hostile condition such as low pH containing chlorine ion like saliva they might to be attacked by localized corrosion. The purposes of this study were to evaluate the microstructure, microhardness, corrosion resistance, frictional resistance and cytotoxocity of 316L(MD), AISI 304(AC) and experimentally produced super stainless stell bracket(SS). The results from this study were as follows; 1. MD and AC showed (Cr, Fe)23C6 precipitating in austenite matrix. SS showed small ferrite island forming in matrix. 2. SS showed the highest polarization resistance(Rp). SS seemed to have the highest corrosion resistance since SS showed 0.9 ×10-3 MPY, MD showed 3.7 ×10-3 MPY and AC showed 7.4×10-3 MPY. 3. The friction resistance decreased from 3 days to 4 weeks for SS(p<0.05). MD showed significant differences for the measurement of 3 days, 2 weeks and 4 weeks. AD did not showed significant differences to 3 days but increased at 2 weeks(p<0.05). 4. SS seemed to have the best biocompatibility since SS showed response index of 0/1 (mild), AC showed 1/2 (mild+) at cytotoxicity test. According to these results, SS seemed to have sufficient characteristics to fabricate the orthodontic brackets and superior corrosion resistance compare to AISI 300 type stainless steel which could lower the chance of nickel allergic reaction.

경도 및 중등도 본태성 고혈압환자에서 Amlodipine단독요법

안기완,서영환,김상도,박윤환,김철,조경상,김완중,홍순표 최신의학사 1992 最新醫學 Vol.35 No.9