Attachment를 이용한 후방연장 국소의치에 의한 압력분산에 관한 3차원 유한요소분석
A THREE DIMENSIONAL FINITE ELEMENT STRESS ANALYSIS ON THE FORCE DISTRIBUTION BY DISTAL EXTENSION PARTIAL DENTURES EMPLOYING ATTACHMENTS
신상완, 안원준, 정연진, 이영수, 심광섭, 유광희,
소속 상세정보
신상완 ( Shin Sang-Wan ) - 고려대학교 구로병원 치과보철과
안원준 ( Ahn Won-Jun ) - 한양대학교 의과대학 치과학교실
정연진 ( Jung Yeon-Jin ) - 한양대학교 의과대학 치과학교실
이영수 ( Lee Young-Soo ) - 한양대학교 의과대학 치과학교실
심광섭 ( Shim Kwang-Sub ) - 한양대학교 의과대학 치과학교실
유광희 ( Yoo Kwang-Hee ) - 한양대학교 의과대학 치과학교실
KMID : 0362419980360060878
Abstract
Although attachments have been utilized for a retainer of removable prostheses during several decades, there is little information on the force distribution by the attachments. This study was undertaken to evaluate the stress patterns developed by partial dentures employing rigid attachments on the supporting structures. Four types of the mandibular removable partial dentures were designed depending upon the position of the rigid attachment and the existency of lingual bracing. Under 100N of vertical and 25N of lateral loads on the 1st and 2nd lower molar of partial denture, stress distribution patterns and displacement were analysed with three dimensional finite element method by ANSYS version 5.3. 1. The highest stresses were concentrated on the distal alveolar crest of posterior abutment and the second stresses on the apical region of posterior abutment in the models. 2. The greatest displacement were shown on the distal alveolar crest of posterior abutment and the second displacement on the distal alveolar crest of anterior abutment in the models. 3. There was little difference between the models with intraoral attachment and those with extracoronal attachment. 4. There was little difference between the models with and without the lingual bracing.
키워드
Attachment; Distal extension; Finite element; Partial denture; Stress analysis
원문 및 링크아웃 정보
등재저널 정보