Cephalometric Characteristics of TMD Patients based on RDC/TMD Axis I Diagnosis

안지연,김용우,김영구,이정윤,Ahn, Ji-Yeon,Kim, Yong-Woo,Kim, Young-Ku,Lee, Jeong-Yun Korean Academy of Orofacial Pain and Oral Medicine 2011 Journal of Oral Medicine and Pain Vol.36 No.1

The aims of this study were to investigate whether the facial skeletal patterns previously reported to be related to temporomandibular disorder (TMD) in other studies could be consistently observed in the TMD patients diagnosed according to Research Diagnostic Criteria for Temporomandibular Disorder (RDC/TMD) Axis I and evaluate its usability in the orthodontic clinics to examine the patients with TMD related symptoms. The clinical records and radiographs of female patients who visited the TMD and Orofacial Pain Clinic of Seoul National University Dental Hospital and were diagnosed as TMD were consecutively filed for this study. Patients were clinically examined and diagnosed according to the revised diagnostic algorithms of RDC/TMD Axis I and the lateral cephalogram, panoramic orthopantomogram, temporomandibular joint (TMJ) orthopantomogram, and transcranial radiograph of each patient were taken and digitalized. The data of patients who were under 18 years of age or had any systemic disease, trauma history involving the TMJ, or skeletal deformity at the time of the first examination were excluded. The remaining data of 96 female patients were finally analyzed. The obtained results were as follows: 1. There are no significant differences of cephalometric measurements between RDC I (muscle disorders) diagnostic groups. 2. Only the articular angle of the RDC group IIc (disk displacement without reduction without limited opening) patients was larger than patients of the no diagnosis of RDC II group (disk displacement). 3. Larger articular angle and smaller facial height ratio were observed in RDC IIIc group (osteoarthrosis) compared to IIIa group (arthralgia). Larger articular angle, larger Bjork sum, smaller posterior facial height, and smaller facial height ratio were observed in RDC group IIIc compared to no diagnosis of RDC III group (arthralgia, arthritis, and arthrosis). 4. According to the results of cephalometric analysis in simplified RDC groups, smaller overjet was observed in muscle disorders (MD) group. Facial height ratio and IMPA were smaller and articular angle was larger in disk displacements (DD) group than in no diagnosis of DD group. In arthrosis (AR) group, posterior facial height, and facial height ratio were smaller, and articular angle, gonial angle, facial convexity, FMA, Bjork sum, and ANB were larger than in no diagnosis of AR group. In joint pain (JP) group, only posterior facial height was smaller than no diagnosis of JP group. In conclusion, Facial morphologic patterns showing posterior-rotated mandible and lower posterior facial height is related to RDC group II and III diagnosis of the TMJ in female TMD patients. RDC/TMD Axis I diagnosis can provide a good clinical diagnostic tool for the standardized examination of the TMJ in orthodontic clinics.

자가 블록골을 이용한 치조골수평증강술과 임프란트 식립

안지연,김영균,윤필영,황정원,Ahn, Ji-Yeon,Kim, Young-Kyun,Yun, Pil-Young,Hwang, Jung-Won 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.5

In general, labiolingual or buccolingual widths of residual alveolar bone are insufficient in edentulous area, because of alveolar resorption. Horizontal augmentation is bone graft procedure with a view to reinforcing horizontally insufficient bone quantity for installation of implants. The standard method is taking appropriate amount of block bone from intraoral or extraoral autogenous bone, and solid fixation with screws or mini-plate on labial or buccal side of residual alveolar bone. The purpose of this study is to discuss clinical usefulness of horizontal augmentation with autogenous block bone by observation and analysis of course of 41 implants installed to 12 patients by horizontal augmentation in Seoul National University Bundang Hospital from July, 2002 to December, 2005. The mean age of patients is 52.7, from 19 to 70, and the number of men and women is each 2 and 10. Block bone was taken from symphysis, body, ramus of mandible or iliac bone. And 6 types of implants were installed simultaneously or not, the diameters of implants are from 3.3 to 5.5mm, the lengths are from 8 to 15mm. The operator added artificial bone grafting material and optionally covered with membrane. The mean periods of observation after operation and final prosthetics were 28.6 and 17.0 months. As a result, 40 among 41 implants survived, the survival rate was 97.6%. Average 0.9mm crestal resorption was observed at final point of time by periapical view of each patients. Major complication related to the procedure was numbness in 7 patients.

공간정보를 이용한 옥상녹화 가용면적 추정

안지연 ( Ahn Ji-yeon ),정태웅 ( Jung Tae-woong ),구지희 ( Koo Jee-hee ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2016 한국환경복원기술학회지 Vol.19 No.5

The purposes of this research are to estimate area of greenable roof and to monitor maintaining of green roofs using World-View 2 images. The contents of this research are development of World-View 2 application technologies for estimation of green roof area and development of monitoring and maintaining of green roofs using World-View 2 images. The available green roof areas in Gwangjin-gu Seoul, a case for this study, were estimated using digital maps and World-View 2 images. The available green roof area is approximately 12.17% (2,153,700㎡) of the total area, and the roof vegetation accounts for 0.46% (80,660㎡) of the total area. For verification of the extracted roof vegetation, Vworld 3D Desktop map service was applied. The study results may be used as a decision-making tool by the government and local governments in determining the feasibility of green roof projects. In addition, the project implementer may periodically monitor to see whether roof greening has maintained for efficient management of projects, and a vast amount of World-View 2 images may be regularly used before and after the projects to contribute to sharing of satellite images information.

『예기(禮記)』의 희생제의 이론에 대한 예비적 고찰 : 로버트슨 스미스(W. Robertson Smith)의 이론과의 비교를 중심으로

안지연 ( Ahn Ji Yeon ) 한국종교학연구회 2022 宗敎學硏究 Vol.40 No.-

This is a preliminary attempt to bring the Liji (禮記), one of the Confucian classics, into contemporary discussions on ritual theories. By viewing the Liji not as an object of religious studies but as a repository of theories for research, this paper aims to compare the theories of sacrifice found in the Liji with W. Robertson Smith’s theory of sacrifice. Both Robertson Smith and the Liji demonstrate the concept of the ancient community as a group bound by a shared source of life which includes not only humans but also spiritual beings as its members. Accordingly, the theories of Robertson Smith and the Liji similarly present sacrifice as an activity inherently public in nature in which the members of the community are meant to strengthen their bonds. However, the Liji’s theories of sacrifice differ from Robertson Smith’s in that the former puts much more emphasis on the hierarchies in sacrifices. Therefore, the Liji’s theories can act as valuable references when it comes to discussions on the differences and distinctions in rituals. On the other hand, the theories of the Liji may have a weakness in explaining the social background in which the slaughtering and blood-shedding of sacrificial victims can acquire fundamental importance.

소셜미디어 환경에서 카드뉴스의 정보콘텐츠에 대한 인식이 재이용의도에 미치는 영향

안지연(Ahn, Ji-yeon),정연주(Jung, Yeon-joo),최명일(Choi, Myung-il) 한국OOH광고학회 2018 OOH광고학연구 Vol.15 No.4

이 연구는 소셜미디어 환경에서 핵심적인 뉴스 미디어로 자리 잡고 있는 카드뉴스의 정보콘텐츠에 주목했다. 카드뉴스에서 제공하는 정보콘텐츠가 아무리 재미있고, 쉽게 정보를 전달한다고 하더라도 정보콘텐츠로서 일정한 수준이나 기대에 미치지 못한다면, 이용자들의 외면을 받을 것이라는 가정에서 출발하였다. 정보콘텐츠로서의 일정한 수준이나 기대를 정보콘텐츠 인식으로 보고, 흥미성, 시의성, 신뢰성, 다양성이 콘텐츠 만족도에 미치는 영향과 콘텐츠 만족도가 재이용의도에 미치는 영향을 살펴보았다. 분석 결과, 흥미성, 시의성, 신뢰성, 다양성 모두 콘텐츠 만족도에 유의미한 영향을 미치는 것으로 나타났으며, 콘텐츠 만족도는 재이용의도에 유의미한 영향을 미치는 것으로 나타났다. 이러한 연구결과를 바탕으로 이론적, 실무적 시사점을 논의하였다. This study focused on the informational contents of card news. It was begun with an assumption that informational contents of card news was not consumed if it was not satisfied with expectations of the audience. So, this study paid more attention to exploring the relationships among informational contents, contents satisfaction, and reuse intention. The results of this study indicated that informational contents had significant effects on contents satisfaction. In addition, the content satisfaction significantly influenced on reuse intention. Based on them, this study offered theoretical and practical suggestions on card news use.

유비쿼터스 기반의 축사 환경관리 시스템 연구

정태웅,안지연,이상락,구지희,Jung, Tae-Woong,Ahn, Ji-Yeon,Lee, Sang-Rak,Koo, Jee-Hee 한국축산환경학회 2014 한국축산시설환경학회지 Vol.20 No.2

It is very important, if necessary, to remotely monitor and control the body conditions and behavior of livestock as well as the environment of stall using ubiquitous ict, in order to improve the health and productivity of livestock. With the aim of developing a stall management system, this study investigated users' needs, analyzed them to design systems, developed a web-system and an app for stall management, then applied them to a test-bed. The use of the app developed will make it easy for livestock farmers to easily monitor and control environment of stall using their smartphones and allow them to take care of stall more efficiently.

황반부를 침범한 뎅기열 1예

진경현,안지연,민준기,신재호,문상웅,Kyung Hyun Jin,MD,Ji Yeon Ahn,MD,Joon Ki Min,MD,Jae Ho Shin,MD,Sang Woong Moon,MD 대한안과학회 2014 대한안과학회지 Vol.55 No.2

Purpose: To report a case of Dengue fever with bilateral macular edema and retinitis. Case summary: A 31-year-old female was referred to our clinic with blurred vision. The patient had visited Bali, Indonesia approximately 2 weeks prior. Dengue fever was diagnosed at the Division of Infectious Disease because the patient’s serum dengue virus antibodies test was positive for dengue viral IgM antibodies. The patient’s best corrected visual acuity was 0.4 in the right eye and 0.6 in the left eye. Slit lamp examination showed inflammatory cells in the vitreous but not in the anterior segment of both eyes. Fundus examination showed thickening of the retina in both eyes as well as a splinter retinal hemorrhage in left eye. Fluorescein angiography revealed hyperfluorescence of the venule in the perifoveal vascular network of the left macula, and indocyanine green angiography showed early diffuse hyperfluorescence in both eyes. Standard automated perimetry showed an overall reduction of the visual field and an increase in scotoma in both eyes. At 1 week after the initial visit, the macular edema had not improved and the patient’s vision had deteriorated, especially in left eye. To improve the macular edema and ocular inflammation, a subtenon triamcinolone acetonide injection in the left eye was administered. At 5 weeks after treatment, corrected visual acuity improved to 1.0 in both eyes. Ocular findings, such as macular edema and intraretinal hemorrhage were resolved. The patient did not complain of any remaining discomfort. However, standard automated perimetry revealed that a pericentral scotoma was still present in left eye. Conclusions: In the present study, the authors report a case of bilateral macular edema and retinitis at the posterior pole after dengue infection. The patient demonstrated a relatively positive response to steroid therapy in the left eye and to conservative treatment in the right eye. J Korean Ophthalmol Soc 2014;55(2):317-323

가축 U-Healthcare 도입방안 연구

구지희,정태웅,안지연,이상락,Koo, Jee-Hee,Jung, Tae-Woong,Ahn, Ji-Yeon,Lee, Sang-Rak 한국축산환경학회 2012 축산시설환경학회지 Vol.18 No.2

In Korea, livestock has grown into the most value-added business in the agricultural and forest industry. But due to the recent outbreak of deadly infectious diseases such as foot-and-mount disease and avian influenza (AI), the demand for IT-enabled cutting-edge management system is getting stronger. As for humans, pilot projects and researches concerning U-healthcare have been carried out since early 2000. So this study explored the current progress of U-healthcare introduction, and suggested the strategies to develop technologies of collecting, processing, and utilizing information; to apply elements for a service model development and prioritization; to provide policy and institutional support. Therefore it is expected to vitalize the livestock U-healthcare in the future through continuous study based on these results.

유비쿼터스 기술을 활용한 가축분뇨 통합관리 시스템 개발을 위한 사용자요구사항 분석

구지희,조진현,안지연,정태웅,이새민,이상락,Koo, Jee-Hee,Jo, Jin-Hyun,Ahn, Ji-Yeon,Jung, Tae-Woong,Lee, Sae-Min,Lee, Sang-Rak 한국축산환경학회 2013 한국축산시설환경학회지 Vol.19 No.2

Although the livestock excretion is a significant resource in providing nutrients to the crops as it is recycled, it has been perceived as the cause of environmental pollutions for its inappropriate treatment and quality control issues. The study is aimed to develop an integrated management system for efficient management of livestock excretion using the Ubiquitous technology, and the user requirements are analyzed for development of such system. As the result of analysis on the requirements, it has been proved that such system is perceived to be necessary and the demand for several main functions can be seen as well.

위험은 파견, 용역 직원에게 외주화 되는가?: 간접 고용이 안전, 건강, 만족에 미치는 효과

문광수 ( Kwangsu Moon ),안지연 ( Ji Yeon Ahn ),장통일 ( Tong Il Jang ),오세진 ( Shezeen Oah ) 한국안전학회 2017 한국안전학회지 Vol.32 No.3

The purpose of this study was to examine the effect of employment type(direct employment, dispatch and service supplier) on risk factor exposure, health and satisfaction. The data of the 4th wave of Korean Working Conditions Survey (KWCS) conducted by Korea Occupational Safety and Health Agency (KOSHA) in South Korea was used. Business support service industry and manufacturing industry were selected as appropriate industries for analysis. In the final analysis, 5,865 in the manufacturing industry and 1,361 in the service support industry were included. Various variables related risk, safety, satisfaction and health such as risk factor exposure, MSDs exposure, work environment satisfaction, injury probability, dangerous work, workload, physical health problem , perceived health, positive emotions, stress, participation for decision making and experience of accident/disease were analyzed and company size and age was controled. An ANCOVA was conducted to identify significant mean differences of risk, safety, satisfaction and health related variables among direct employed workers, dispatch and service supplier workers. The results showed that all the variables except stress showed a significant difference depending on employment type in the service supply industry. In the manufacturing industry, there were significant difference in the risk factor exposure, MSDs exposure, work environment satisfaction, workload, physical health problem, perceived health, and participation depending on employment type. These results indicated that the risks are unloaded to subcontract and outsourcing company workers. Based on these results, the implications of this study and suggestions for future research were discussed.