정면에서 평가한 한국인 여성 입술의 심미성과 전방 분절 골절단술 후 입술의 평가

이범석,강윤구,윤태호,국윤아 대한치과교정학회 2007 대한치과교정학회지 Vol.37 No.5

이 연구는 한국인 여자 유명 모델과 일반인의 정면입술의 차이점을 비교하여 아름다운 입술의 특징을 규명하며 양악 전방 분절골절단술을 시행한 환자에서 정면입술의 변화를 측정하고 그 수술 결과를 한국인 모델과 비교하여 차이점을 알아보고자 하였다. 한국인 유명 모델 30명, 일반인 26명과 양악 전방 분절골절단술을 받은 환자의 10명을 대상으로 정면입술 부위의 12개의 선 길이, 홍순의 5개의 각도와 둘레 및 면적을 측정하였고, 통계분석은 unpaired & paired t-test를 이용하였다. 한국인 유명 모델 군과 일반인 군의 비교에서 하안면 얼굴 폭경, 하안면 수직길이, 상홍순의 높이, 하순의 길이, 상홍순의 구각부 각도와 central bow의 각도는 의미 있는 차이로 일반인 군보다 유명 모델 군에서 작았다. 그러나, 입술의 폭, 하홍순의 높이, Cupid's bow tip간 거리와 하홍순의 구각부 각도는 유명 모델 군에서 컸고 입술의 둘레와 전체 면적에서도 일반인 군보다 컸다. 양악 전방 분절골절단술을 받은 환자의 정면입술에서는 하안면 얼굴 폭경, 상홍순의 높이, Cupid's bow tip에서 구각부까지의 길이와 상홍순의 면적이 통계적으로 의미 있는 변화를 보였고 한국인 유명 모델과의 비교에서 비슷한 수치를 나타내었지만 상순의 길이는 반대로 증가하였다. 연구의 결과는 교정치료 혹은 양악 전방 분절골절단술을 계획할 때 정면 입술 심미성을 평가하는 데 도움이 될 것으로 생각된다. Objective: The aim of this study was to determine firstly the characteristics of esthetic lips in Korean females and secondly to measure the changes of the lips before and after anterior segmental osteotomy in bimaxillary protruded patients. Methods: Samples consisted of 30 models and 26 nonmodels, and 10 patients who had received anterior segmental osteotomy. Twelve linear measurements, 5 angular measurements, and the lip perimeter and area were measured. These results were compared for each group using unpaired and paired t-tests. Results: Full face width, nose to chin, upper vermilion height and angle, lateral heights at the point of the tips of Cupid's bow, central bow angle, and the lower lip to chin lengths were significantly greater in nonmodels than in models. However, overall lip width, lower vermilion height and angle, tip-to-tip of Cupid's bow lip perimeter, and lower vermilion area were greater in models than in nonmodels. Comparison of before and after anterior segmental osteotomy revealed that the values for the upper vermilion and lateral heights, the angle to Cupid's bow tip lengths, and upper vermilion area of post-operative patients had become similar to those of Korean female models. Our findings demonstrated that Korean female models have a fuller lower vermilion & thinner upper vermilion compared with nonmodel controls, as determined by the vermilion heights, angles, and areas. Conclusions: It will be helpful for clinicians to use these measurements as guidelines for improving patients' facial esthetics.

카이로프랙틱 경추 교정이 주의집중력에 미치는 영향에 대한 연구

Yoon Beom Kook,Joo Hyun Ham,Jin Ok Choi,Jung Soo Yi1 한서대학교 보완대체의학연구소 2016 Research Journal of Complementary and Alternative Vol.- No.7

This study is about the effect chiropractic correction has on the changes in attention cathexis. A total of 20 who are currently students at Hanseo University were selected. The study measured changes in the score for the attention cathexis ability and the changes in delta wave, theta wave, alpha wave, SMR, BetaL wave, and BetaH wave of the prefrontal lobe. The changes in brainwaves of the prefrontal lobe and the score of the attention cathexis ability for the false procedure before and after the treatment did not show much difference statistically(p>.05). The chiropractic correction group showed statistically meaningful results of the decrease of delta wave, theta wave, and BetaH, and the increase of alpha wave, SMR, and BetaL on the left side(p<.05). The decrease of delta wave, theta wave, and BetaH, and the increase of alpha wave, SMR, and BetaL on the right were statistically meaningful as well(p<.05). The increase in the score of the attention cathexis ability was significant statistically as well(p<.05). The chiropractic correction affected the increase of the attention cathexis ability.

정면에서 평가한 한국인 여성 입술의 심미성과 전방 분절 골절단술 후 입술의 평가

이범석(Beom-Suk Lee),강윤구(Yoon-Goo Kang),윤태호(Tae-Ho Yoon),국윤아(Yoon-Ah Kook) 대한치과교정학회 2007 대한치과교정학회지 Vol.37 No.1

이 연구는 한국인 여자 유명 모델과 일반인의 정면입술의 차이점을 비교하여 아름다운 입술의 특징을 규명하며 양악 전방 분절골절단술을 시행한 환자에서 정면입술의 변화를 측정하고 그 수술 결과를 한국인 모델과 비교하여 차이점을 알아보고자 하였다. 한국인 유명 모델 30명, 일반인 26명과 양악 전방 분절골절단술을 받은 환자의 10명을 대상으로 정면입술 부위의 12개의 선 길이, 홍순의 5개의 각도와 둘레 및 면적을 측정하였고, 통계분석은 unpaired & paired t-test를 이용하였다. 한국인 유명 모델 군과 일반인 군의 비교에서 하안면 얼굴 폭경, 하안면 수직 길이, 상홍순의 높이, 하순의 길이, 상홍순의 구각부 각도와 central bow의 각도는 의미 있는 차이로 일반인 군보다 유명 모델 군에서 작았다. 그러나, 입술의 폭, 하홍순의 높이, Cupid’s bow tip간 거리와 하홍순의 구각부 각도는 유명 모델 군에서 컸고 입술의 둘레와 전체 면적에서도 일반인 군보다 쳐다 양악 전방 분절골절단술을 받은 환자의 정면입술에서는 하안면 얼굴 폭경, 상홍순의 높이, Cupid’s bow tip에서 구각부까지의 길이와 상홍순의 면적이 통계적으로 의미 있는 변화를 보였고 한국인 유명 모델과의 비교에서 비슷한 수치를 나타내었지만 상순의 길이는 반대로 증가하였다. 연구의 결과는 교정치료 혹은 양악 전방 분절골절단술을 계획할 때 정면 입술 심미성을 평가하는데 도움이 될 것으로 생각된다. Objective:The aim of this study was to determine firstly the characteristics of esthetic lips in Korean females and secondly to measure the changes of the lips before and after anterior segmental osteotomy in bimaxillary protruded patients.<br> Methods: Samples consisted of 30 models and 26 nonmodels, and 10 patients who had received anterior segmental osteotomy. Twelve linear measurements, 5 angular measurements, and the lip perimeter and area were measured. These results were compared for each group using unpaired and paired t-tests.<br> Results: Full face width, nose to chin, upper vermilion height and angle, lateral heights at the point of the tips of Cupid’s bow, central bow angle, and the lower lip to chin lengths were significantly greater in nonmodels than in models. However, overall lip width, lower vermilion height and angle, tip-to-tip of Cupid’s bow lip perimeter, and lower vermilion area were greater in models than in nonmodels. Comparison of before and after anterior segmental osteotomy revealed that the values for the upper vermilion and lateral heights, the angle to Cupid’s bow tip lengths, and upper vermilion area of post-operative patients had become similar to those of Korean female models. Our findings demonstrated that Korean female models have a fuller lower vermilion & thinner upper vermilion compared with nonmodel controls, as determined by the vermilion heights, angles, and areas.<br> Conclusion: It will be helpful for clinicians to use these measurements as guidelines for improving patients’ facial esthetics.

Chemopreventive effect of ascorbic acid , sodium selenite , ginger extract in vivo medium - term bioassay

( Beom Seok Han,Dae Joong Kim,Dong Hwan Shin,Byeong Woo Ahn,Ki Sok Kim,Choong Man Hong,Kook Kyung Lee,Chang Yoong Yoon,Ja Joung Jeong,Kwang Shik Choi,Dong Deuk Jang,Jae Chon Cho ) 대한보건협회 1998 대한보건협회 보건종합학술대회 Vol.- No.-

Chemopreventive effect of ascorbic acid, sodium selenite, ginger extract in vivo medium-term bioassay

Beom-Seok Han,Dae-Joong Kim,Dong-Hwan Shin,Byeongwoo-Ahn,Ki-Sok Kim,Choong-Man Hong,Kook-Kyung Lee,Chang-Yoong Yoon,Ja-Young Jeong,Kwang-Shik Choi,Dong-Deuk Jang,Jae-Chon Cho 한국보건교육건강증진학회 1998 한국보건교육·건강증진학회 학술대회 발표논문집 Vol.- No.-

New approach of maxillary protraction using modified C-palatal plates in Class III patients

Yoon-Ah Kook,Mohamed Bayome,Jae Hyun Park,Ki Beom Kim,Seong-Hun Kim,Kyu-Rhim Chung 대한치과교정학회 2015 대한치과교정학회지 Vol.45 No.4

Maxillary protraction is the conventional treatment for growing Class Ⅲ patients with maxillary deficiency, but it has undesirable dental effects. The purpose of this report is to introduce an alternative modality of maxillary protraction in patients with dentoskeletal Class Ⅲ malocclusion using a modified C-palatal plate connected with elastics to a face mask. This method improved skeletal measurements, corrected overjet, and slightly improved the profile. The patients may require definitive treatment in adolescence or adulthood. The modified C- palatal plate enables nonsurgical maxillary advancement with maximal skeletal effects and minimal dental side effects.

Review—High-Capacity Li[Ni_1-<i>_x</i>Co<i>_x</i>_/2Mn<i>_x</i>_/2]O₂ (<i>x</i> = 0.1, 0.05, 0) Cathodes for Next-Generation Li-Ion Battery

Yoon, Chong S.,Choi, Moon Ho,Lim, Byung-Beom,Lee, Eung-Ju,Sun, Yang-Kook The Electrochemical Society 2015 Journal of the Electrochemical Society Vol.162 No.14

<P>LiNiO2 with theoretical capacity of 275 mAh g(-1) is regarded as a promising cathode material for Li-ion batteries, but its potential capacity has not been fully realized due to the severe capacity loss in the first charge/discharge cycle. Via co-precipitation method, we synthesized Li[Ni0.90Co0.05Mn0.05]O-2, Li[Ni0.95Co0.025Mn0.025]O-2, and LiNiO2 which delivered 221, 230, and 240 mAh g(-1) respectively, when cycled from 2.7 to 4.3 V vs. Li-0/Li+ at 0.1 C and retained similar to 70% of the initial capacity after 100 cycles. To date, such high reversible capacities are not yet to be reported from the Ni-rich Li[Ni1-x-yCoxMny]O-2 cathodes. The observed high capacities were attributed to the presence of a rock salt phase from severe cation mixing and excess Li ions in the host structure. It is believed that the rock salt phase stabilized the host structure in the delithiated state while the excess Li allowed the Li ions percolated through the rock salt phase which would be electrochemically inactive otherwise. (C) 2015 The Electrochemical Society. All rights reserved.</P>

Improved Performances of Li[Ni_0.65Co_0.08Mn_0.27]O₂Cathode Material with Full Concentration Gradient for Li-Ion Batteries

Yoon, Sung-Jun,Park, Kang-Joon,Lim, Byung-Beom,Yoon, Chong S.,Sun, Yang-Kook The Electrochemical Society 2015 Journal of the Electrochemical Society Vol.162 No.2

<P>Full concentration gradient (FCG) cathode material having nickel-rich core Li[Ni0.89Co0.01Mn0.10]O-2 and nickel-deficient outer layer Li[Ni0.61Co0.09Mn0.30]O-2 was synthesized via co-precipitation method. A smoothly varying concentration gradients for Ni, Co, and Mn extended from the core to the surface within a single cathode particle with an average composition of Li[Ni0.65Co0.08Mn0.27]O-2. Electrochemical and thermal properties of the FCG cathode were evaluated and compared to the conventional cathode (CC) material, Li[Ni0.65Co0.08Mn0.27]O-2 without the concentration gradient. The BET surface area measurement demonstrated the presence of densely agglomerated primary particles in the FCG cathode. Owing to the unique spatial distribution of the cations and particle morphology, the FCG cathode delivered higher discharge capacity, superior cycle stability and excellent thermal stability compared to the CC Li[Ni0.65Co0.08Mn0.27]O-2. (C) The Author(s) 2014. Published by ECS.</P>

Enhanced Bioavailability of Poorly Water - Soluble Drugs Using Dry Elixir

(Chong Kook Kim),(Yong Sang Yoon),(Jae Yoon Choi),(Beom Jin Lee) 한국약제학회 1993 PROCEEDINGS OF THE FIP POST-SATELLITE SYMPOSIUM `9 Vol.- No.-

브라켓의 수직적 변위에 따른 마찰이 NiTi wire의 힘과 모멘트에 미치는 영향

박재범(Jea-Beom Park),유지아(Ji-A Yoo),모성서(Sung-Seo Mo),최광철(Kwangchul Choy),김윤지(Yoon-Ji Kim),한성호(Seong Ho Han),국윤아(Yoon-Ah Kook) 대한치과교정학회 2011 대한치과교정학회지 Vol.41 No.5

본 연구는 초탄성 니켈-타이타늄 wire로 수직적 높이 차이가 있는 치아의 leveling 과정을 재현하여 wire의 size와 결찰방법에 따른 force system의 변화를 알아보고 여기에 마찰력의 영향에 대해서 알아보고자 하였다. 브라켓은 0.018" slot의 standard twin bracket을 사용하였으며 교정용 wire는 0.014", 0.016" 그리고 0.016" × 0.022" NiTi를 이용하였고 수직적인 높이는 0에서 5 mm까지 1 mm 간격으로 부하와 탈부하 과정을 실험하여 다음과 같은 결론을 얻었다. 마찰력은 loading 시 wire의 stiffness를 증가시켰으며, 0.014" NiTi를 O-ring 결찰을 한 경우에 현저한 stiffness의 증가를 나타내었다. Light wire (0.014)는 수직적으로 5 mm 변위된 치아의 이동 시 2 mm, 0.016"는 3 mm, 0.016" × 0.022"는 4 mm까지의 이동에 유용한 것으로 분석되었다. 본 연구결과는 수직적 변위가 큰 경우에 light wire조차도 적절한 힘을 발휘하지 않은 것으로 나타났다. Objective: The purpose of this study was to evaluate the effect of force and moment produced by Nickel-titanium wires of different sizes at activation and deactivation according to differing vertical bracket displacement. Methods: Superelastic NiTi wires of 3 different sizes (0.014", 0.016", and 0.016" × 0.022") were tied with elastomeric or 0.009-inch stainless steel ligations in a twin-bracket, 0.018-inch slot. A testing machine recorded the effects of simulated activation of 5 distances from 1 to 5 mm and deactivation of 5 distances from 4 to 0 mm, in increments of 1 mm. Results: Frictional force increased the wire stiffness during loading. Ligation of 0.014-inch NiTi wire with O-ring resulted in a significant increase in the stiffness. On application of orthodontic force for 5 mm of vertical displacement of teeth, the effective displacement in the case of the 0.014", 0.016", and 0.016" × 0.022" NiTi wires was 2 mm, 3 mm, and 4 mm, respectively. Conclusions: Our results showed that movement of teeth with large vertical displacement was ineffective because of excessive friction. This finding might contribute to the understanding of the force system required for effective teeth movement and thereby facilitate the application of the appropriate light wire for leveling and alignment.