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Comparative Evaluation of a Four-Implant-Supported Polyetherketoneketone Framework Prosthesis: A Three-Dimensional Finite Element Analysis Based on Cone Beam Computed Tomography and Computer-Aided Design

Authors
 Ki-Sun Lee,  ;  Sang-Wan Shin  ;  Sang-Pyo Lee  ;  Jong-Eun Kim  ;  Jee-Hwan Kim  ;  Jeong-Yol Lee 
Citation
 INTERNATIONAL JOURNAL OF PROSTHODONTICS, Vol.30(6) : 581-585, 2017 
Journal Title
 INTERNATIONAL JOURNAL OF PROSTHODONTICS 
ISSN
 0893-2174 
Issue Date
2017
Keywords
Biocompatible Materials ; Computer-Aided Design ; Cone-Beam Computed Tomography ; Dental Prosthesis Design ; Dental Prosthesis, Implant-Supported* ; Finite Element Analysis ; Imaging, Three-Dimensional ; Ketones ; Polyethylene Glycols
Abstract
PURPOSE: The purpose of this pilot study was to evaluate and compare polyetherketoneketone (PEKK) with different framework materials for implant-supported prostheses by means of a three-dimensional finite element analysis (3D-FEA) based on cone beam computed tomography (CBCT) and computer-aided design (CAD) data. MATERIALS AND METHODS: A geometric model that consisted of four maxillary implants supporting a prosthesis framework was constructed from CBCT and CAD data of a treated patient. Three different materials (zirconia, titanium, and PEKK) were selected, and their material properties were simulated using FEA software in the generated geometric model. RESULTS: In the PEKK framework (ie, low elastic modulus) group, the stress transferred to the implant and simulated adjacent tissue was reduced when compressive stress was dominant, but increased when tensile stress was dominant. CONCLUSION: This study suggests that the shock-absorbing effects of a resilient implant-supported framework are limited in some areas and that rigid framework material shows a favorable stress distribution and safety of overall components of the prosthesis.
Full Text
http://www.quintpub.com/journals/ijp/abstract.php?article_id=17888#.XJl7iOQh2Uk
DOI
10.11607/ijp.5369
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jong Eun(김종은) ORCID logo https://orcid.org/0000-0002-7834-2524
Kim, Jee Hwan(김지환) ORCID logo https://orcid.org/0000-0002-0872-4906
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/167687
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