Comparative Evaluation of the Effect of Core Type and Antirotational Post on Stress Distribution in an Endodontically Treated Maxillary First Molar: FEA
Background. This study aims to analyze and compare the stress distribution in an endodontically treated maxillary first molar restored with various post and core systems and assess the benefit of the presence of an antirotational post and the effect of its length using finite element analysis. Mater...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | International Journal of Dentistry |
| Online Access: | http://dx.doi.org/10.1155/2022/4336980 |
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| author | Ramin Mosharraf Amirhossein Fathi Seyedeh Shiva Botshekan |
| author_facet | Ramin Mosharraf Amirhossein Fathi Seyedeh Shiva Botshekan |
| author_sort | Ramin Mosharraf |
| collection | DOAJ |
| description | Background. This study aims to analyze and compare the stress distribution in an endodontically treated maxillary first molar restored with various post and core systems and assess the benefit of the presence of an antirotational post and the effect of its length using finite element analysis. Materials and Methods. Five 3D models of maxillary first molar restored with variable designs of post and core were constructed using CT scanning and information obtained from textbook and FEM software. Variables were types of core, presence or absence of an antirotational post, and length of the antirotational post. A load of 480 (N) vertically and a load of 240 (N) with 45° to the occlusal plane were applied. Results were analyzed using 3D von Mises criteria. Results. The results showed that the most homogeneous stress distribution pattern along with dentin and the post-core system was observed in the model with one main post in the palatal canal and in the model with a two-piece core and one main post in the palatal canal and shorter antirotational post in the distal-buccal canal. However, models with one-piece core and antirotational post (either the same length or shorter than the main post) in the distal-buccal canal had the most stress concentration sites. Conclusion. In this study, it was found that the presence of an antirotational post, its length, and type of core affected the distribution of stress along the dentin and post-core system. This study indicated that if the antirotational post is considered in the post-core design, it is better to use a two-piece core type due to more homogeneous stress distribution along the dentin and post-core system. |
| format | Article |
| id | doaj-art-1d9263f367e84c78b215283756f42e1f |
| institution | Kabale University |
| issn | 1687-8736 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Dentistry |
| spelling | doaj-art-1d9263f367e84c78b215283756f42e1f2025-02-03T01:06:38ZengWileyInternational Journal of Dentistry1687-87362022-01-01202210.1155/2022/4336980Comparative Evaluation of the Effect of Core Type and Antirotational Post on Stress Distribution in an Endodontically Treated Maxillary First Molar: FEARamin Mosharraf0Amirhossein Fathi1Seyedeh Shiva Botshekan2Department of ProsthodonticsDepartment of ProsthodonticsDental Students’ Research CommitteeBackground. This study aims to analyze and compare the stress distribution in an endodontically treated maxillary first molar restored with various post and core systems and assess the benefit of the presence of an antirotational post and the effect of its length using finite element analysis. Materials and Methods. Five 3D models of maxillary first molar restored with variable designs of post and core were constructed using CT scanning and information obtained from textbook and FEM software. Variables were types of core, presence or absence of an antirotational post, and length of the antirotational post. A load of 480 (N) vertically and a load of 240 (N) with 45° to the occlusal plane were applied. Results were analyzed using 3D von Mises criteria. Results. The results showed that the most homogeneous stress distribution pattern along with dentin and the post-core system was observed in the model with one main post in the palatal canal and in the model with a two-piece core and one main post in the palatal canal and shorter antirotational post in the distal-buccal canal. However, models with one-piece core and antirotational post (either the same length or shorter than the main post) in the distal-buccal canal had the most stress concentration sites. Conclusion. In this study, it was found that the presence of an antirotational post, its length, and type of core affected the distribution of stress along the dentin and post-core system. This study indicated that if the antirotational post is considered in the post-core design, it is better to use a two-piece core type due to more homogeneous stress distribution along the dentin and post-core system.http://dx.doi.org/10.1155/2022/4336980 |
| spellingShingle | Ramin Mosharraf Amirhossein Fathi Seyedeh Shiva Botshekan Comparative Evaluation of the Effect of Core Type and Antirotational Post on Stress Distribution in an Endodontically Treated Maxillary First Molar: FEA International Journal of Dentistry |
| title | Comparative Evaluation of the Effect of Core Type and Antirotational Post on Stress Distribution in an Endodontically Treated Maxillary First Molar: FEA |
| title_full | Comparative Evaluation of the Effect of Core Type and Antirotational Post on Stress Distribution in an Endodontically Treated Maxillary First Molar: FEA |
| title_fullStr | Comparative Evaluation of the Effect of Core Type and Antirotational Post on Stress Distribution in an Endodontically Treated Maxillary First Molar: FEA |
| title_full_unstemmed | Comparative Evaluation of the Effect of Core Type and Antirotational Post on Stress Distribution in an Endodontically Treated Maxillary First Molar: FEA |
| title_short | Comparative Evaluation of the Effect of Core Type and Antirotational Post on Stress Distribution in an Endodontically Treated Maxillary First Molar: FEA |
| title_sort | comparative evaluation of the effect of core type and antirotational post on stress distribution in an endodontically treated maxillary first molar fea |
| url | http://dx.doi.org/10.1155/2022/4336980 |
| work_keys_str_mv | AT raminmosharraf comparativeevaluationoftheeffectofcoretypeandantirotationalpostonstressdistributioninanendodonticallytreatedmaxillaryfirstmolarfea AT amirhosseinfathi comparativeevaluationoftheeffectofcoretypeandantirotationalpostonstressdistributioninanendodonticallytreatedmaxillaryfirstmolarfea AT seyedehshivabotshekan comparativeevaluationoftheeffectofcoretypeandantirotationalpostonstressdistributioninanendodonticallytreatedmaxillaryfirstmolarfea |