상악 측절치의 선천적 결손시 교정치료 : Case Report

지대경,임용규,이동렬 고려대학교 임프란트 연구소 2000 임프란트연구지 Vol.2 No.1

Congenital abscence of one or both of the maxillary incisors is the second most common form of tooth agenesis. Whether congenitally abscent or lost as the result of an accident or pathologic condition, missing lateral incisors present a problem, which complicates orthodontic treatment. The condition requires careful treatment planning and a consideration of the options and outcomes following either space closure or prosthetic replacement. This study presents the clinical cases with maxillary lateral incisors missing, following optimal diagnosis and treatment planning considerations in treatment in these cases.

Forced Eruption

지대경,임용규,이동렬 고려대학교 임프란트연구소 2001 임프란트연구지 Vol.3 No.1

교정 영역에서 Implant의 이용

임용규,권종진 고려대학교 임프란트 연구소 2000 임프란트연구지 Vol.2 No.1

Implantology is rapidly becoming an established part of the overall dental treatment strategies and is also increasingly being integrated into orthodontic treatment concepts. Anchorage control is of greatest importance in orthodontic treatment planning and dictates the treatment objectives. Osseointegrated titanium implants are used as orthodontic anchorage remained in position when orthodontically loaded for the various tooth movement and will greatly expand the range of biomechanical possibilities.

RECHERCHE DES CAUSES D'ECHECS ENIMPLANTOLOGIE

Suh, Kyu Won 고려대학교 임프란트 연구소 1999 임프란트연구지 Vol.1 No.1

복강 속에 매식한 티타늄합금의 조직반응에 관한 광학현미경적 관찰

구송희,서규원 고려대학교 임프란트연구소 2001 임프란트연구지 Vol.3 No.1

The development of titanium alloys for biomedical and dental applications is currently an area of implant research. The skin is a particularly favorable organ for studying the principles of pathology, including pathogenesis. Round coin shaped titanium alloy (Titanium-13Zirconium-6Niobium) were machined with 4mm diameter, 1mm thickness and 1mm diameter hole in center. 8 samples were submerged into the Peritoneum of Rat. of 8 Sprague-Dawley rats. The 3-months intra peritoneum of implantation showed a range of implant applications by microscopic study. The present paper describes of evaluation of Ti-13Nb-13Zr Titanium alloy has low inflammation, fibrosis and no necrosis. Titanium alloy improved biocompatibility and could be used as a standard biomaterial.

GES(gold eletroforming system)를 이용한 임프란트 보철물의 제작에 관한 연구

이성욱,서규원 고려대학교 임프란트연구소 2001 임프란트연구지 Vol.3 No.1

Distortions of casting body and unfitness of margin lead to failure or remaking the implant restorations in the cases of long span bridges. It is necessary to use of eletro forming system and spark erosion machine in the fabrication of the implant restorations to make accurate margin and passive fitness. This study presents new lab. procedure of implant restoration and suggests the joining procedure between electroformed crown and connecting elements with gold bonder.

과도한 하중으로제거된 임프란트 주위조직의 투과전자현미경적 관찰

서규원 고려대학교 임프란트 연구소 2000 임프란트연구지 Vol.2 No.1

Overloading, infection and impaired healing are considered the major etiologic factors for the fail of dental implants. The treatment of failing implants is depends on the knowledge and skill based on entirely on experience, from periodontal research, and from interesting case reports performed on a trial-and-error basis. The aim of the study is and evaluation of the ultrastructural aspect of interfacial tissues from retrieved implants in which there had been overloading for 1 year to the right and left lower 1st molar areas. After removal of peri-implant tissues, they were prepared and observed by transmission electron microscope without decalcifiction procedure. The results were as follows. Transmission electron microscopy revealed destruction of the cells and tissues, degradation of the collagen fibers with micro-organisms. Overloading could be related to abnormal bone remodeling sequence.

과도한 하중으로 제거된 임프란트 주위조직의 투과전자현미경적 관찰

서규원 고려대학교 임프란트연구소 2001 임프란트연구지 Vol.3 No.1

Overloading, infection and impaired healing are considered the major etiologic factors for the fail of dental implants. The treatment of failing implants is depends on the knowledge and skill based on entirely on experience, from periodontal research, and from interesting case reports performed on a trial-and-error basis. The aim of the study is an evaluation of the ultrastructural aspect of interfacial tissues from retrieved implants in which there had been overloading for 1 year to the right and left lower 1st molar areas. After removal of peri-implant tissues, they were prepared and observed by transmission electron microscope without decalcifiction procedure. The results were as follows. Transmission electron microscopy revealed destruction of the cells and tissues, degradation of the collagen fibers with micro-organisms. Overloading could be related to abnormal bone remodeling sequence.

임플란트 나사풀림에 관한 고찰

박승국,황정원,서규원 고려대학교 임프란트연구소 2001 임프란트연구지 Vol.3 No.1

하악구치부 유리단결손의 임플란트 수복에 관한 임상적 연구

손형민,오화선,임재석 고려대학교 임프란트 연구소 2000 임프란트연구지 Vol.2 No.1

Many long-term study have demonstrated the successful use of osseointegrated implants to replace posterior teeth in the partially dentate patients. Implant were recently selected as the treatment of the choice for this population, instead of the previous resolves for the shortened dental arch (removable partial dentures, single or multiple cantilevers, or continued premolar occlusion). Advantages of patients with implant-supported prosthesis included an improved masticatory apparatus, reduced stress on the remaining anterior segments of the dentition, esthetics, comfort, and psychological benefits etc. But, there are many obstacle to implant placement in posterior mandible. The shape, quantity, and quality of bone in the mandible as anatomicla limitation and heavy occlusal force as mechanical disadvantage are significant factors in deciding which implant options possible. Consideration of these factors is necessary for the successful diagnosis and implant treatment of partially edentulous arches. PURPOSE : The purpose of this retrospective longitudinal study is to evaluate the long-term outcome, determinants of outcome, and the type and prevalance of prosthetic complications in the series of the patients treated with implants in the partially edentulous posterior mandible. MATERIAL AND METHODS : A total of 107 consecutively placed implants were inserted in 38 partially edentulous patients and restored with single-tooth and fixed partial dentures restoration at Korea University Guro-hospital from April 1991 to December 1999. The patients ranged in age from 22 to 72 years, and 54% were female. We analysed statistically long-term outcome according to type. RESULTS : The results were as follows : 1. The overall outcome showed an implant success rate of 97.2% in posterior partially edentulous mandible 2. In the proportion of the fixture length ; 10mm (22.4%), 11.5-12.0mm (19.6%), 13.0mm (19.6%) fixture were respectively predominant in order. In the proportion of the fixture width ; 3.75mm (47.7%), 5.0mm (36.4%) were predominant in order. 3. According to surface types of fixture, success rate were pure titanium 95.9%, TPS coating 100%, HA coating 100%. 4. A total of the 107 implants showed 20 complications (18.7%) the most common complications (7cases) was loosening of the abutment screw and gold screw. 5. Prosthetic complications with regard to fixture number showed higher prevalence one implant (30%) two implant (12.9%), three implant (11.1%) in order. 6. According to the prosthetic type, complications of screw type were 10 cases and cementation type were 4 cases. CONCLUSION : This study offers efficacious results of implant supported fixed prostheses as an alternative to traditional prostheses in patients with posterior partial edentulism. Therefore, we think that implant prosthesis is a relatively safe and predictable method for restoring partially posterior edentulous areas.