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FINITE ELEMENT STRESS ANALYSIS OF MAXILLARY TWO IMPLANTS-RETAINED OVERDENTURE ACCORDING POSITION OF IMPLANT FIXTURES
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상악피개의치를 위한 임플랜트의 위치에 따른 응력분포에 대한 유한요소분석

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Type
Academic journal
Author
Journal
The Korean Academy Of Prosthodontics 대한치과보철학회지 대한치과보철학회지 제46권 제2호 KCI Accredited Journals
Published
2008.1
Pages
193 - 200 (8page)

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FINITE ELEMENT STRESS ANALYSIS OF MAXILLARY TWO IMPLANTS-RETAINED OVERDENTURE ACCORDING POSITION OF IMPLANT FIXTURES
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Statement of problem: There have been a few studies about unsplinted implant retainted maxillary overdenture. Purpose: The purpose of this study was to examine the effect of different position of implant for 2 implants-retained maxillary overdenture. Materials and methods: Three-dimensional finite element models were used to reproduce an edentulous human maxilla with an implant-retained overdenture. Two implants in the canine tooth positions on both side and in the second premolar tooth positions on both side models were examined. Axial loads of 100 N were applied to the occlusal surface at the right first molar tooth positions. Maximum stress at the implant-bone interface and stress at the cortical bone surface just under the loading point were observed. Results and conclusion: Within the limits of this study, maximum stresses were concentrated around implant of canine position at loading side. The second premolar area was thought to be more favorable to distribution of stress on mucosa, alveolar bone and implants than canine area for maxillary overdenture.

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