상악동저 거상술과 임플란트 식립 후 상악동저 변화에 대한 연구

조상호,김옥수,Cho, Sang-Ho,Kim, Ok-Su 대한치주과학회 2006 Journal of Periodontal & Implant Science Vol.36 No.2

Loss of maxillary molar teeth leads to rapid loss of crestal bone and inferior expansion of the maxillary sinus floor (secondary pneumatization). Rehabilitation of the site with osseointegrated dental implants often represents a clinical challenge because of the insufficient bone volume resulted from this phenomenon. Boyne & James proposed the classic procedure for maxillary sinus floor elevation entails preparation of a trap door including the Schneiderian membrane in the lateral sinus wall. Summers proposed another non-invasive method using a set of osteotome and the osteotome sinus floor elevation (OSFE) was proposed for implant sites with at least 5-6mm of bone between the alveolar crest and the maxillary sinus floor. The change of grafted material in maxillary sinus is important for implant survival and the evaluation of graft height after maxillary sinus floor elevation is composed of histologic evaluation and radiomorphometric evaluation. The aim of the present study was radiographically evaluate the graft height change after maxillary sinus floor elevation and the influence of the graft material type in height change and the bone remodeling of grafts in sinus. A total of 59 patients (28 in lateral approach and 31 in crestal approach) who underwent maxillary sinus floor elevation composed of lateral approach and crestal approach were radiographically followed for up to about 48 months. Change in sinusgraft height were calculated with respect to implant length (IL) and grafted sinus height(BL). It was evaluated the change of the graft height according to time, the influence of the approach technique (staged approach and simultaneous approach) in lateral approach to change of the graft height, and the influence of the type of graft materials to change of the graft height. Patients were divided into three class based on the height of the grafted sinus floor relative to the implant apex and evaluated the proportion change of that class (Class I, in which the grafted sinus floor was above the implant apex; Class II, in which the implant apex was level with the grafted sinus floor; and Class III, in which the grafted sinus floor was below the implant apex). And it was evaluated th bone remodeling in sinus during 12 months using SGRl(by $Br\ddot{a}gger$ et al). The result was like that; Sinus graft height decreased significantly in both lateral approach and crestal approach in first 12 months (p<O,01). Significant difference was not observed between staged approach and simultaneous approach in graft height change according to time in lateral approach, However, staged approach had more height loss to simultaneous approach in all observed time. In lateral approach, there was significant difference in BL/IL change according to the type of graft material (p<0.05). Autogenous bone had maximum height loss and $MBCP^{TM}$ had minimum height loss. Class III and Class II was increased by time in both lateral and crestal approach and Class I was decreased by time. SGRI was increased statistically significantly from baseline to 3 months and 3 months(p<0.05) to 12 months(p<O.01) in both approach. From above mentioned results, we concluded that progressive sinus graft height reduction occurs in both maxillary sinus floor elevation approaches and then stability of sinus graft height is achieved, In case of autogenous bone or $ICB^{(R)}$ single use, more reduction of sinusgraft height was appeared. Therefore we speculated that the mixture of graft materials is preferable as a reduction of graft materials. Increasing of the SGRI as time goes by explains the stability of implant, but additional histologic or computed tomographic study will be needed for accurate conclusion. From the radiographic evaluation, we come to know that placement of dental implant with sinus floor elevation is an effective procedure in atrophic maxillary reconstruction.

기고 - 가축재해보험

조상호,Jo, Sang-Ho 대한양계협회 2015 월간 양계 Vol.47 No.3

Can the liver tell us about the heart? An old story revisited

조상호 대한내과학회 2013 The Korean Journal of Internal Medicine Vol.28 No.3

Rapid growth of NiSx by atomic layer infiltration and its application as an efficient counter electrode for dye-sensitized solar cells

조상호,김홍범,성명모 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.77 No.-

Nickel sulfide (NiSx) was grown by atomic layer infiltration using bis(dimethylamino-2-methyl-2-butoxo)nickel(II) [Ni(dmamb)2] and hydrogen sulfide (H2S) as a metal precursor and a sulfur source. Thesteady-state growth rate of thefilm was 3.7 Å/cycles at 160–190 C which was much faster compared tothose by conventional atomic layer deposition method (<0.7 Å/cycles). This nickel sulfide thinfilms werecharacterized by taking X-ray photoelectron spectroscopy, scanning electron microscopy, X-raydiffraction, and hall measurements. The depositedfilms on Si wafer was single-phase polycrystallinewith multiple domains. The NiSx film grown onfluorine-doped tin oxide (FTO)-coated glass was appliedto a counter electrode in dye-sensitized solar cells, which performed a high catalytic activity for thereduction of I3to I and the comparable cell efficiency of 7.12% with cells using conventional Pt-coatedFTO counter electrode.

비둘기 외 1편

조상호 계간 서정시학 2016 서정시학 Vol.26 No.3

Well-Defined Block Copolymers for Functional Nanomaterials

조상호 한국고분자학회 2017 한국고분자학회 학술대회 연구논문 초록집 Vol.42 No.2

Esthetic mounting (OP1)을 사용하여 교합면 재구성을 시행한 증례

조상호,Cho, Sang-Ho 대한심미치과학회 2014 Journal of the Korean Academy of Esthetic Dentistr Vol.23 No.1

붕괴된 교합평면을 보철적으로 재구성하는 과정에 있어 face-bow와 교합기는 필수적으로 필요한 기구로 사용되어왔다. 일반적으로 Ear rod를 사용하는 face bow는 상악 정중선의 오차와 교합평면의 canting이 발생할 가능성이 있는데 이런 문제점을 해결하기위해 환자의 안면 정중선을 기준으로 하는 face bow가 개발되어왔다. Ear-bow를 이용한 mounting에서 종종 발생하는 오류를 보완하는 방법으로 환자 안면의 중심과 교합기의 중심을 일치시키려는 개념의 mounting technique이 시도되고 있으며 이를 esthetic mounting이라 한다. 이들 중 하나인OP finder 1(OP1)을 사용한 증례를 보고하고자 한다. A face-bow and an articulator have been used as crucial devices in a prosthodontic reconstruction of a collapsed occlusal plane. In order to avoid inaccuracy of median line in maxilla and the canted occlusal plane both of which may result from using a facebow with ear rods, a facebow that locate a patient's facial median line as reference line has been under development. A mounting technique that tries to bring a center of patient's face into line with the center of the articulator, called esthetic mounting, is currently employed to overcome the imprecision resulted from mounting with ear-bow transfer. We would like to study a case that used OP finder 1, one of the esthetic mounting techniques.

Nanocellulose-derived stimuli-responsive cholesteric microgels

조상호 한국공업화학회 2018 한국공업화학회 연구논문 초록집 Vol.2018 No.1

한국출판의 언론적 기능과 시대적 역할-권위주의 체제하(1972-1987)의 사회과학 출판을 중심으로

조상호,Jo, Sang-Ho 대한출판문화협회 1997 출판저널 Vol.219 No.-

유신체제에서 제5공화국에 이르는 권위주의 체제하에서 한국출판은 정치.사회적 상황에 대한 감시 역할을 담당하고 비판적 담론을 형성하는 언론 기능를 수행했다. 해직기자.해직교수.제적학생 등 비판적 지식인이 출판계로 유입되면서 인적.질적 구조변동이 일어나고 한국출판의 뉴저널리즘의 기능이 강화됐다.

憲法裁判所制度에 對한 考察 : 特性 및 問題點을 中心으로

趙祥浩 순천대학교 사회과학연구소 1989 社會科學硏究 Vol.2 No.-

This thesis inquire to a study on constitutional justice system with protection of constitution. This constitutional justice system is cause not the product of theoretical speculation, but from violation of the constitution on the judge review of legislation, and one the hand, protect in a basis claim of a people. According to this thesis, the organization of the thesis is described in the following list. Chapter Ⅰ. Introduction 1. Purpose of this thesis study. Chapter Ⅱ. A general idea of constitutional justice system. 1. A meaning of constitutional review system. 2. A boundary of constitutional review system. Chapter Ⅲ. The constitutional justice system of a every country. This every countries is America, Japanes, Philippine, with the administration of justice, and Austria, west Germany, Italy, Egypt, Jugo-slavia is organization with the Constitutional justice system. ChapterⅣ. The constitutional justice system of our country. This constitutional justice system is organization from the first Republic in Korea to the sixth Republic in Korea, with a three type of the constitution committee, the Administration of justice, and the constitutional justice system. ChapterⅤ. According to the character and a problem of the onstitutional justice system. More than, the constitutional justice system is look after the personal protection, and the constitution protection.