Influence of the Angle of Cervical Convergence on Stresses to the PDL of Abutments: A 3D Analysis Using Finite Element Method
Objective: This study was designed to compare the stress produced at the PDL of abutment teeth with two angles of cervical convergence, in otherwise similar settings. Materials and Methods: Two finite element models were designed for a second premolar and a removable partial denture frame containin...
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| Format: | Article |
| Language: | English |
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Tehran University of Medical Sciences
2007-03-01
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| Series: | Frontiers in Dentistry |
| Subjects: | |
| Online Access: | https://jdt.tums.ac.ir/index.php/jdt/article/view/108 |
| _version_ | 1819026997973614592 |
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| author | A. Geramy Gh. Ommati-Shabestary L. Eghlima |
| author_facet | A. Geramy Gh. Ommati-Shabestary L. Eghlima |
| author_sort | A. Geramy |
| collection | DOAJ |
| description | Objective: This study was designed to compare the stress produced at the PDL of abutment teeth with two angles of cervical convergence, in otherwise similar settings.
Materials and Methods: Two finite element models were designed for a second premolar and a removable partial denture frame containing an I-bar clasp. Maximum Principal Stress (S1) and Von Mises Stress (SEQV) were assessed along a cervico-apical path of nodes in the PDL.
Results: Output data for S1 and SEQV were the same regarding the height of contour. A gradual decrease in both models was observed. A larger decrease was found in the model with the higher angle of cervical convergence.
Conclusion: I-bars placed on teeth with lower angles of cervical convergence produce a higher stress to the PDL of abutments. |
| first_indexed | 2024-12-21T05:35:28Z |
| format | Article |
| id | doaj.art-03f28b4c56a948a4b5d359e0e7c0b5a6 |
| institution | Directory Open Access Journal |
| issn | 2676-296X |
| language | English |
| last_indexed | 2024-12-21T05:35:28Z |
| publishDate | 2007-03-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Frontiers in Dentistry |
| spelling | doaj.art-03f28b4c56a948a4b5d359e0e7c0b5a62022-12-21T19:14:25ZengTehran University of Medical SciencesFrontiers in Dentistry2676-296X2007-03-0141Influence of the Angle of Cervical Convergence on Stresses to the PDL of Abutments: A 3D Analysis Using Finite Element Method A. Geramy0 Gh. Ommati-Shabestary1 L. Eghlima2 Objective: This study was designed to compare the stress produced at the PDL of abutment teeth with two angles of cervical convergence, in otherwise similar settings. Materials and Methods: Two finite element models were designed for a second premolar and a removable partial denture frame containing an I-bar clasp. Maximum Principal Stress (S1) and Von Mises Stress (SEQV) were assessed along a cervico-apical path of nodes in the PDL. Results: Output data for S1 and SEQV were the same regarding the height of contour. A gradual decrease in both models was observed. A larger decrease was found in the model with the higher angle of cervical convergence. Conclusion: I-bars placed on teeth with lower angles of cervical convergence produce a higher stress to the PDL of abutments.https://jdt.tums.ac.ir/index.php/jdt/article/view/108Removable prosthodonticsCircumferential claspRetentionFinite element method(FEM)I-BarAngle of cervical convergence |
| spellingShingle | A. Geramy Gh. Ommati-Shabestary L. Eghlima Influence of the Angle of Cervical Convergence on Stresses to the PDL of Abutments: A 3D Analysis Using Finite Element Method Frontiers in Dentistry Removable prosthodontics Circumferential clasp Retention Finite element method(FEM) I-Bar Angle of cervical convergence |
| title | Influence of the Angle of Cervical Convergence on Stresses to the PDL of Abutments: A 3D Analysis Using Finite Element Method |
| title_full | Influence of the Angle of Cervical Convergence on Stresses to the PDL of Abutments: A 3D Analysis Using Finite Element Method |
| title_fullStr | Influence of the Angle of Cervical Convergence on Stresses to the PDL of Abutments: A 3D Analysis Using Finite Element Method |
| title_full_unstemmed | Influence of the Angle of Cervical Convergence on Stresses to the PDL of Abutments: A 3D Analysis Using Finite Element Method |
| title_short | Influence of the Angle of Cervical Convergence on Stresses to the PDL of Abutments: A 3D Analysis Using Finite Element Method |
| title_sort | influence of the angle of cervical convergence on stresses to the pdl of abutments a 3d analysis using finite element method |
| topic | Removable prosthodontics Circumferential clasp Retention Finite element method(FEM) I-Bar Angle of cervical convergence |
| url | https://jdt.tums.ac.ir/index.php/jdt/article/view/108 |
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