Evaluation of the onset of failure under mechanical and thermal stresses on luting agent for metal-ceramic and metal crowns by finite element analysis
Long-term clinical failures of cemented prosthesis depend, to a large extent, on the integrity of the luting agent. The causative factors that lead to microfracture and, hence, failure of the luting agents are the stresses acting inside the oral cavity. Therefore, the present study was designed to d...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2010-01-01
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| Series: | Contemporary Clinical Dentistry |
| Subjects: | |
| Online Access: | http://www.contempclindent.org/article.asp?issn=0976-237X;year=2010;volume=1;issue=4;spage=227;epage=233;aulast=Agnihotri |
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| author | Hema Agnihotri Naresh Bhatnagar G Venugopal Rao Veena Jain Hari Parkash Aswini Kumar Kar |
| author_facet | Hema Agnihotri Naresh Bhatnagar G Venugopal Rao Veena Jain Hari Parkash Aswini Kumar Kar |
| author_sort | Hema Agnihotri |
| collection | DOAJ |
| description | Long-term clinical failures of cemented prosthesis depend, to a large extent, on the integrity of the luting agent. The causative factors that lead to microfracture and, hence, failure of the luting agents are the stresses acting inside the oral cavity. Therefore, the present study was designed to develop an understanding of the relationship between stresses in the tooth and the failure potential of the luting agent. Two-dimensional finite element stress analysis was performed on the mandibular second premolar. The behavior of zinc-phosphate and glass-ionomer were studied under different crowns (metal-ceramic and metal crown) and loading conditions (mechanical force of 450 N acting vertically over the occlusal surface, thermal loads of 60° and 0°C). It was observed from the study that failure threshold of the luting agent was influenced both by the elastic modulus of the luting agent and by the type of the crown. |
| first_indexed | 2024-04-14T04:00:00Z |
| format | Article |
| id | doaj.art-239b2d93bc864878a0ab8ca712d85ee0 |
| institution | Directory Open Access Journal |
| issn | 0976-237X 0976-2361 |
| language | English |
| last_indexed | 2024-04-14T04:00:00Z |
| publishDate | 2010-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Contemporary Clinical Dentistry |
| spelling | doaj.art-239b2d93bc864878a0ab8ca712d85ee02022-12-22T02:13:33ZengWolters Kluwer Medknow PublicationsContemporary Clinical Dentistry0976-237X0976-23612010-01-011422723310.4103/0976-237X.76389Evaluation of the onset of failure under mechanical and thermal stresses on luting agent for metal-ceramic and metal crowns by finite element analysisHema AgnihotriNaresh BhatnagarG Venugopal RaoVeena JainHari ParkashAswini Kumar KarLong-term clinical failures of cemented prosthesis depend, to a large extent, on the integrity of the luting agent. The causative factors that lead to microfracture and, hence, failure of the luting agents are the stresses acting inside the oral cavity. Therefore, the present study was designed to develop an understanding of the relationship between stresses in the tooth and the failure potential of the luting agent. Two-dimensional finite element stress analysis was performed on the mandibular second premolar. The behavior of zinc-phosphate and glass-ionomer were studied under different crowns (metal-ceramic and metal crown) and loading conditions (mechanical force of 450 N acting vertically over the occlusal surface, thermal loads of 60° and 0°C). It was observed from the study that failure threshold of the luting agent was influenced both by the elastic modulus of the luting agent and by the type of the crown.http://www.contempclindent.org/article.asp?issn=0976-237X;year=2010;volume=1;issue=4;spage=227;epage=233;aulast=AgnihotriFinite elementluting agentmetal-ceramic crownsstress distribution |
| spellingShingle | Hema Agnihotri Naresh Bhatnagar G Venugopal Rao Veena Jain Hari Parkash Aswini Kumar Kar Evaluation of the onset of failure under mechanical and thermal stresses on luting agent for metal-ceramic and metal crowns by finite element analysis Contemporary Clinical Dentistry Finite element luting agent metal-ceramic crowns stress distribution |
| title | Evaluation of the onset of failure under mechanical and thermal stresses on luting agent for metal-ceramic and metal crowns by finite element analysis |
| title_full | Evaluation of the onset of failure under mechanical and thermal stresses on luting agent for metal-ceramic and metal crowns by finite element analysis |
| title_fullStr | Evaluation of the onset of failure under mechanical and thermal stresses on luting agent for metal-ceramic and metal crowns by finite element analysis |
| title_full_unstemmed | Evaluation of the onset of failure under mechanical and thermal stresses on luting agent for metal-ceramic and metal crowns by finite element analysis |
| title_short | Evaluation of the onset of failure under mechanical and thermal stresses on luting agent for metal-ceramic and metal crowns by finite element analysis |
| title_sort | evaluation of the onset of failure under mechanical and thermal stresses on luting agent for metal ceramic and metal crowns by finite element analysis |
| topic | Finite element luting agent metal-ceramic crowns stress distribution |
| url | http://www.contempclindent.org/article.asp?issn=0976-237X;year=2010;volume=1;issue=4;spage=227;epage=233;aulast=Agnihotri |
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