임프란트의 실패
Failure of Dental Implants:An analysis of 179 Cases
박미숙, 지국섭, 조세인,
소속 상세정보
박미숙 ( ) - 조선대학교 치과대학 구강악안면외과학교실
지국섭 ( ) - 조선대학교 치과대학 구강악안면외과학교실
조세인 ( ) - 조선대학교 치과대학 보철학교실
KMID : 0362819980170010080
Abstract
Introduction
The use of dental implants has become an integral procedure in restorative dentistry. This is reflected in the 10 times increase in the number of dentists who have become involved in implant dentistry between 1983 and 1987: However, there have been cases of implant failure and as yet there is little knowledge regarding risk factors
related to such failures 5).
Basically the success of implans depend on proper selection of implant for "the oral environments and correct surgicl procedures corresponding principles and prosthetic restoration may be possibles in only complete integrations between implants and jaws.
While there are various complications in the literature,two types of complications were used: surgical complications, prosthetic complications. Failure to achieve osseointegration resulting in implant mobility is regarded as the primary complication. Surgical complications also have been described,including wound dehiscence or mucosal perforation over-implant sites, exposure of the cover screw or fixture thread, gingivitis and gingival hyperplasia surrounding implant abutments,fistula formation, and scar contracture. Also, various prosthetic failures occur, such as fracture of implant fixture or abutment screw or the attached prosthesis, and malpositioned fixture.
Materials and Methods
We experienced 179 endosseous implant surgery and prosthodontic restoration with edentulous jaw for 7 . years from March 1990 to December 1996. 469 fixtures were implanted. The ratio of male to female was 1.4:1 and the range of age from 16 to 74 years. Most dominant group was 41 to 50 years group (35%). The statistical analysis includes the incidence, distribution, location, type of complications.
Results
1) Distribution of cases by sex
Males (n=95) were more frequently treated than female (n=70), with a ratio of 1.4:1 (Table 1).
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