Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - A comparative finite elemental analysis of glass abutment supported and unsupported cantilever fixed partial denture
AU - Ramakrishaniah, R.
AU - Al Kheraif, A.A.
AU - Elsharawy, M.A.
AU - Alsaleh, A.K.
AU - Ismail Mohamed, K.M.
AU - Rehman, I.U.
PY - 2015
Y1 - 2015
N2 - Objective The purpose of this study was to investigate and compare the load distribution and displacement of cantilever prostheses with and without glass abutment by three dimensional finite element analysis. Micro-computed tomography was used to study the relationship between the glass abutment and the ridge. Methods The external surface of the maxilla was scanned, and a simplified finite element model was constructed. The ZX-27 glass abutment and the maxillary first and second premolars were created and modified. The solid model of the three-unit cantilever fixed partial denture was scanned, and the fitting surface was modified with reference to the created abutments using the 3D CAD system. The finite element analysis was completed in ANSYS. The fit and total gap volume between the glass abutment and dental model were determined by Skyscan 1173 high-energy spiral micro-CT scan. Results The results of the finite element analysis in this study showed that the cantilever prosthesis supported by the glass abutment demonstrated significantly less stress on the terminal abutment and overall deformation of the prosthesis under vertical and oblique load. Micro-computed tomography determined a gap volume of 6.74162 mm3. Significance By contacting the mucosa, glass abutments transfer some amount of masticatory load to the residual alveolar ridge, thereby preventing damage to the periodontal microstructures of the terminal abutment. The passive contact of the glass abutment with the mucosa not only preserves the health of the mucosa covering the ridge but also permits easy cleaning. It is possible to increase the success rate of cantilever FPDs by supporting the cantilevered pontic with glass abutments. © 2015 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.
AB - Objective The purpose of this study was to investigate and compare the load distribution and displacement of cantilever prostheses with and without glass abutment by three dimensional finite element analysis. Micro-computed tomography was used to study the relationship between the glass abutment and the ridge. Methods The external surface of the maxilla was scanned, and a simplified finite element model was constructed. The ZX-27 glass abutment and the maxillary first and second premolars were created and modified. The solid model of the three-unit cantilever fixed partial denture was scanned, and the fitting surface was modified with reference to the created abutments using the 3D CAD system. The finite element analysis was completed in ANSYS. The fit and total gap volume between the glass abutment and dental model were determined by Skyscan 1173 high-energy spiral micro-CT scan. Results The results of the finite element analysis in this study showed that the cantilever prosthesis supported by the glass abutment demonstrated significantly less stress on the terminal abutment and overall deformation of the prosthesis under vertical and oblique load. Micro-computed tomography determined a gap volume of 6.74162 mm3. Significance By contacting the mucosa, glass abutments transfer some amount of masticatory load to the residual alveolar ridge, thereby preventing damage to the periodontal microstructures of the terminal abutment. The passive contact of the glass abutment with the mucosa not only preserves the health of the mucosa covering the ridge but also permits easy cleaning. It is possible to increase the success rate of cantilever FPDs by supporting the cantilevered pontic with glass abutments. © 2015 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.
KW - 3D analysis
KW - Cantilever fixed partial denture
KW - Finite element analysis
KW - Gap volume
KW - Micro-computed tomography
KW - Prosthesis deformation
KW - Terminal abutment stress
KW - ZX-27 glass abutment
KW - Computer aided design
KW - Computerized tomography
KW - Deformation
KW - Glass
KW - Nanocantilevers
KW - Prosthetics
KW - Tomography
KW - 3-D-analysis
KW - Abutment stress
KW - Fixed partial dentures
KW - Microcomputed tomography
KW - Finite element method
KW - glass
KW - comparative study
KW - dental abutment
KW - dental procedure
KW - denture design
KW - finite element analysis
KW - fixed partial denture
KW - human
KW - in vitro study
KW - maxilla
KW - micro-computed tomography
KW - premolar tooth
KW - procedures
KW - Young modulus
KW - Bicuspid
KW - Dental Abutments
KW - Dental Stress Analysis
KW - Denture Design
KW - Denture, Partial, Fixed
KW - Elastic Modulus
KW - Finite Element Analysis
KW - Humans
KW - In Vitro Techniques
KW - Maxilla
KW - X-Ray Microtomography
U2 - 10.1016/j.dental.2015.02.003
DO - 10.1016/j.dental.2015.02.003
M3 - Journal article
VL - 31
SP - 514
EP - 521
JO - Dental Materials
JF - Dental Materials
SN - 0109-5641
IS - 5
ER -