인접 자연치를 침범한 임플란트와 침범받은 자연치의 임상적 예후
The clinical prognosis of implants invading the adjacent natural tooth and invaded teeth
구정귀, 윤필영, 최용훈, 이양진, 안교진, 이희진, 김영균,
소속 상세정보
구정귀 ( Ku Jeong-Kui ) - 분당서울대학교병원 치과 구강악안면외과
윤필영 ( Yun Pil-Young ) - 분당서울대학교병원 치과 구강악안면외과
최용훈 ( Choi Yong-Hoon ) - 분당서울대학교병원 치과보존과
이양진 ( Lee Yang-Jin ) - 분당서울대학교병원 치과보철과
안교진 ( Ahn Gyo-Jin ) - 분당서울대학교병원 치과 구강악안면외과
이희진 ( Lee Hee-Jin ) - 분당서울대학교병원 치과 구강악안면외과
김영균 ( Kim Young-Kyun ) - 분당서울대학교병원 치과 구강악안면외과
KMID : 1025720150340010012
Abstract
Purpose: There is always a risk of invasion of the implant into adjacent tooth. The purpose of this study is to evaluate the clinical outcome of the implant and the invaded adjacent natural tooth when the implant directly invades the adjacent tooth or comes close to it.
Materials and Methods: The present study was conducted on patients of Seoul National University Bundang Hospital who had received implant placements that implant directly invaded an adjacent tooth or came close to the root of the adjacent tooth (≤1 mm). Among a total of 35 patients (19 males, 16 females, mean age 61.2±11.1), 39 implants were investigated. The implants which invaded natural teeth were classified into three types (direct invasion, contact with the root of the tooth, and being close to the root of the tooth with less than or equal to 1 mm distance) using a periapical radiograph. The survival rate of the implants and clinical prognosis of the invaded teeth were investigated.
Results: The most invaded natural teeth were canine and premolars. Among the invaded teeth, 39 teeth that had a proper medical record were investigated. Direct invasion had occurred in 12 cases, contact with the root of the tooth in 13 cases, and being close to the root of the tooth (≤1 mm distance) in 14 cases. A total of two implants failed and removed, and the average survival rate was 94.9%. As for the state of invaded natural teeth, 27 teeth (69.2%) functioned in a sound and vital state. Three invaded teeth (7.7%) were extracted and nine teeth (23.1%) functioned without problems after receiving root canal treatment.
Conclusions: Within the limitation of and short-term evaluation, invasion of implant to adjacent tooth would have a minor influence on the prognosis of a tooth and outcomes of an implant when an appropriate root canal treatment was performed in cases of pulp necrosis through regular checkups.
키워드
Dental implant; Injury; Damage; Invasion; Tooth; Periodontal ligament
원문 및 링크아웃 정보
등재저널 정보