하악 대구치부위의 고정성 보철물에서 2개의 장폭경과 3개의 표준 임프란트의 비교

유호선,소성수,한동후,조규성,문익상,Yoo, Ho-Sun,So, Sung-Soo,Han, Dong-Hoo,Cho, Kyoo-Sung,Moon, Ik-Sang 대한치주과학회 2002 Journal of Periodontal & Implant Science Vol.32 No.3

Osseointegrated implants have been established as the standard treatment modality for full/partial edentulous patients since the 1960's, and the long term results for full edentulous patients have proven to be successful. Based on these results osseointegrated implants are now widely used for partial edentulous patients. There has been an increased interest towards the efficacy of wide implants, despite many reports mentioning the lower success rate of wide implants compared to regular implants. Recently, mandibular molar area defects are commonly restored using 2 wide implants, but it is not determined whether which treatment modality-3 regular implants or 2 wide implants-shows superior success rate. In this study, 2 wide implants and 3 regular implants used for the restoration of mandibular molar area are used to compare the survival rate of 1-4 years, and to analyze and compare the failure factors. The following conclusions could be drawn from this study. 1. Wide implants and regular implants showed 94.5% and 97,6% of survival rate respectively. After prosthodontic work, the survival rate was 100% and 98.1% for wide implants and regular implants respectively. 2. 5 failed implants have been removed. 2 wide implants and 1 regular implant have been removed due to failure of osseointegration. 1 wide implant was removed due to abscess formation caused by over-heating, and 1 regular implant was removed due to mechanical failure caused by over-loading within the first year of function. 3. No statistically significant difference was observed with respect to the amount of marginal bone loss of wide and regular implants.(P>0.05) In conclusion, restoration of the mandibular molar area using 3 regular implants was found to be a good treatment modality, and 2 wide implants could he considered a good treatment modality when success factors are taken into account.

초기 및 중등도 치주염에서 임상지수, Interleukin-1, MMP-8, 치주원인균 감소에 대한 전동칫솔의 효과

유호선,채경준,홍지연,최성호,김종관,Yoo, Ho-Sun,Chae, Gyung-Joon,Hong, Ji-Youn,Choi, Seong-Ho,Kim, Chong-Kwan 대한치과의사협회 2008 대한치과의사협회지 Vol.46 No.12

이 연구의 목적은 초기 및 중등도 치주염 환자에서 전동칫솔을 사용할 경우 임상 지수의 향상 정도와 치주원인균의 정량적 감소 효과를 12주의 연구 기간 동안 평가하는 것이다. $25{\sim}55$세의 환자 80명을 대상으로 12주 동안 진행하였으며, 치태지수 0.5 이상, 치은지수 0.5 이상을 나타내는 대상에서 일반 칫솔 혹은 전동칫솔 ($Sonicare^{(R)}$ Elite, Philips Oral Healthcare Inc., Snoqualmie, Washington, USA) 사용 군을 임의로 선정하였다. 하루 2회, 매 회 2분 간 사용하고, 각 군의 칫솔 사용을 교육하였다. 임상지수는 치태지수 (PI; Silness & $L{\ddot{o}}e$), 치은지수 (GI; $L{\ddot{o}}e$ & Silness), 탐침 후 출혈 부위 (%), 치주낭 깊이 부착소실을 초진 1, 4, 12주에 측정하였다. Interleukin-1 (IL-1), MMP-8과 치은연하치태샘플에서 채취한 4 종류의 치주원인균 (Actinomyces visco년, Porphyromonas gingivalis, Streptococcus sanguis, Tannerella forsythensis)에 대한 16S rRNA test는 초진, 1주, 12주에 측정하였다. 측정 결과 전동칫솔과 일반 칫솔 모두 임상지수의 유의한 감소가 나타났으며, 치은지수는 일반칫솔에 비해 전동칫솔에서 감소효과가 통계적으로 더 우수하게 나타났다 (p<0.001). 탐침 후 출혈의 감소는 전동칫솔에서 76.73%, 일반칫솔에서 44.57% 정도로 전동칫솔 군이 더 우수하게 나타났다. 치주낭 깊이 감소는 초진에 비해 전동칫솔 군에서 18.55%, 일반칫솔 군에서 14.81% 정도로 나타났으며, 초진과 비교하였을 때 부착수준의 향상 정도는 전동칫솔 25.24%, 일반 칫솔 16.94% 정도로 두 군 모두 통계적으로 유의하게 개선되었다 (p < 0.001). 두 군 모두 IL-1 beta, MMP-8 농도의 감소가 있었으며, 치주원인균 중 A.viscosus, P.gingivalis, T.forsythensis 역시 두 군 모두에서 초진에 비해 12주에 유의한 감소를 나타내었으나, S.sanguis는 전동칫솔 군에서만 12주에 유의한 감소가 있었다. 이상의 결과에서 12주 간의 연구 기간 동안 초기 및 중등도 치주염 환자에서 소니케어 전동칫솔의 사용은 임상지수 및 치주 원인균 감소에 통계적으로 유의한 개선 효과를 나타내었다.

유족연금의 적정급여수준을 위한 개선방안

유호선 ( Ho Sun Yoo ) 한국사회보장학회 2011 사회보장연구 Vol.27 No.1

The purpose of this study is to suggest policy alternatives for adequacy of survivor`s benefit in National Pension. In order to suggest policy alternatives for adequacy of survivor`s benefit, first of all, characteristics and role of survivor`s benefit in pension system are examined and issues of current survivor`s benefit in National Pension are analysed. Then, survivor`s benefit in other countries are compared. That is, in order to get policy implication for adequacy of survivor`s benefit from other countries, survivor`s benefit in Germany, France, and Belgium is examined. Based on the above policy implication, the policy alternatives for adequacy of survivor`s benefit are proposed.

지중해연안 유럽 국가들의 연금개혁 -이탈리아와 그리스를 중심으로-

유호선 ( Ho Sun Yoo ) 부산외국어대학교 지중해지역원 2014 지중해지역연구 Vol.16 No.1

The purpose of this paper is to analyse pension reform in Mediterranean European countries, especially focused on Italy and Greece. And the implications will be suggested. In order to analyse pension reform in Mediterranean European countries, first of all, politics, economy, and society in four countries are examined shortly. In terms of politics, Mediterranean European countries had experienced long dictatorship until the middle of 1970, and then brought about democracy in the middle of 1970. And they were agricultural countries until 1970, thus, they were industrialized late comparing with West European countries. Also their society has been characterized with the spread of informal and irregular economy and clientelism. Mediterranean European countries also have similar pension system each other comparing with West European countries. That is, Mediterranean European countries have developed their welfare state focused on pension. Thus, the benefit level of the pension was very high relatively. And pension in Mediterranean European countries also have played a role as social assistance without enough financial subsidy from the state. Because of these reasons, they have faced financial problem in pension and should have reformed pension. Under the financial problem in pension, Mediterranean European countries have accelerated pension reform in terms of financial sustainability. Thus, the direction of their pension reform tends to be convergent to financial sustainability while the degree of the pension reform was divers each other. In order to examine these changes, pension reform of Italy and Greece is analyzed in depth. The reason which this paper focuses on the pension reform of Italy and Greece is that Italy is characterized as successive pension reform with social consensus but Greece is characterized as passive pension reform with external factors. Italy also had reformed the pension quickly while it took a long time for Greece to reform the pension. Then, based on analysis of pension reform caused in Italy and Greece, the implication of pension reform in Mediterranean European countries is suggested.

복지국가 재편에 관한 담론 연구

유호선 ( Ho Sun Yoo ) 한국사회보장학회 2011 사회보장연구 Vol.27 No.2

The purpose of this study is to suggest paradigm shift of welfare state after analysing new discourses on restructuring of welfare state. In order to suggest paradigm shift of welfare state, first of all, new discourses on restructuring of welfare state are analysed which are engendering welfare state, social investment state, and transitional labour market. The common arguments are to strengthen activation policy for women and the elderly and to expand socialization of carework. As a result, the aims of welfare state in the new paradigm of welfare state, that is, dependent variables in measuring welfare state, purse re-commodification and re-familialization.

한국손해보험 (韓國損害保險)의 성장요인분석 (成長要因分析)

유호선(Ho Sun Yoo) 한국보험학회 1976 保險學會誌 Vol.12 No.-

N/A

극좌표계를 기준으로한 유도전동기의 회전자 자속 및 회전속도 추정 방법

兪皓善(Ho-Sun Yoo),河仁重(In-Joong Ha),李尙勳(Sang-Hoon Lee) 대한전기학회 1994 전기학회논문지 Vol.43 No.12

국민연금의 양육 크레딧 제도 개선방안 연구

유호선 ( Ho Sun Yoo ) 한국사회보장학회 2010 사회보장연구 Vol.26 No.1

The purpose of this study is to suggest policy alternatives for childcare credit in National Pension which strengthens current childbirth credit. In order to suggest policy alternatives for childcare credit, first of all, definition and role of credit in pension system are examined and issues of current childbirth credit in National Pension are analysed. Then, care credit in other countries are compared. That is, in order to get policy implication for care credit from other countries, care credit in Germany, Franc, UK, and Japan is examined. Based on the above policy implication, the contribution record of Korean women in National Pension is analysed and policy alternatives for childcare credit are proposed.

독일과 일본의 장기요양보험제도 하의 재가서비스 공급체계에 대한 복지혼합(Welfare mix) 분석 -역사 제도주의적 관점에서-

유호선 ( Ho Sun Yoo ) 한국사회보장학회 2007 사회보장연구 Vol.23 No.3

다층노후소득보장제도의 유형화 및 유형별 특성의 분석 -유럽연합 국가들을 중심으로

유호선 ( Ho Sun Yoo ) 한국사회보장학회 2013 사회보장연구 Vol.29 No.4

The purpose of this study is to suggest multi-pillar pension regimes in EU focused on adequacy and sustainability and to analyse the characteristics. Thus, first of all, previous literature is reviewed and adequacy and sustainability is defined. Then, I analyse multi-pillar pension regimes with fuzzy-set ideal type analysis. After choosing four representative states (the Netherlands, France, UK, and Greece) in each regime, the characteristics in each regime are examined. As a result, the Netherlands and Sweden are analysed as a regime having adequate and sustainable pension system. France and Germany are characterized as states having adequate and unsustainable pension system. And UK and Finland are analysed as a regime having inadequate and sustainable pension system. But Greece and Italy including southern European countries are characterized as states having inadequate and unsustainable pension system.