The effect of post-core and ferrule on the fracture resistance of endodontically treated maxillary central incisors
<b>Aim:</b> To evaluate the effect of post reinforcement, post type and ferrule on the fracture resistance of endodontically treated maxillary central incisors. <b> Materials and Methods:</b> Sixty central incisor teeth were selected and grouped into six groups, viz. A, B,...
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Wolters Kluwer Medknow Publications
2008-01-01
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doaj-72f76812380c4948833f2fe629e273b22020-11-24T21:05:19ZengWolters Kluwer Medknow PublicationsIndian Journal of Dental Research0970-92902008-01-011911721The effect of post-core and ferrule on the fracture resistance of endodontically treated maxillary central incisorsSendhilnathan DakshinamurthyNayar Sanjna<b>Aim:</b> To evaluate the effect of post reinforcement, post type and ferrule on the fracture resistance of endodontically treated maxillary central incisors. <b> Materials and Methods:</b> Sixty central incisor teeth were selected and grouped into six groups, viz. A, B, C, D, E, and F, each consisting of 10 specimens. Group A specimens were not subjected to any restorative treatment. Group B specimens were endodontically treated and crowned. Specimens of groups C and D were restored with custom cast post and core. Specimens of groups E and F were treated with prefabricated titanium post and composite core. Specimens of groups C and E were restored with porcelain-fused metal (PFM) crown having 2 mm ferrule. Specimens of groups D and F were restored with PFM crown having no ferrule. All the specimens were subjected to load (newton, N) on the lingual surface at a 135° angle to the long axis with a universal testing machine until it fractured. The fracture load and mode of fracture of each specimen were noted. One-way analysis of variance with Tukey honestly significant difference procedure was employed to identify the significant difference among the groups at 5% level (<i>P</i> < 0.05). <b> Results:</b> There were significant differences among the six groups studied (<i>P</i> < 0.0001). The highest fracture strength was recorded with specimen of group C (1376.7 N). There were significant differences between groups A and D versus groups B, E, and F. There were no significant differences between groups B, E, and F. Cervical root fracture was the predominant mode of failure in all the groups except group A. <b> Conclusion:</b> The results showed that endodontically treated teeth restored with custom cast post core were as strong as the untreated group. Teeth restored with custom cast post core were better resistant to fracture than teeth restored with prefabricated titanium post and composite core. Ferrule is more important in custom cast post core than in prefabricated post and composite core.http://www.ijdr.in/article.asp?issn=0970-9290;year=2008;volume=19;issue=1;spage=17;epage=21;aulast=SendhilnathanEndodontically treated teethfracture resistancepost and core |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sendhilnathan Dakshinamurthy Nayar Sanjna |
spellingShingle |
Sendhilnathan Dakshinamurthy Nayar Sanjna The effect of post-core and ferrule on the fracture resistance of endodontically treated maxillary central incisors Indian Journal of Dental Research Endodontically treated teeth fracture resistance post and core |
author_facet |
Sendhilnathan Dakshinamurthy Nayar Sanjna |
author_sort |
Sendhilnathan Dakshinamurthy |
title |
The effect of post-core and ferrule on the fracture resistance of endodontically treated maxillary central incisors |
title_short |
The effect of post-core and ferrule on the fracture resistance of endodontically treated maxillary central incisors |
title_full |
The effect of post-core and ferrule on the fracture resistance of endodontically treated maxillary central incisors |
title_fullStr |
The effect of post-core and ferrule on the fracture resistance of endodontically treated maxillary central incisors |
title_full_unstemmed |
The effect of post-core and ferrule on the fracture resistance of endodontically treated maxillary central incisors |
title_sort |
effect of post-core and ferrule on the fracture resistance of endodontically treated maxillary central incisors |
publisher |
Wolters Kluwer Medknow Publications |
series |
Indian Journal of Dental Research |
issn |
0970-9290 |
publishDate |
2008-01-01 |
description |
<b>Aim:</b> To evaluate the effect of post reinforcement, post type and ferrule on the fracture resistance of endodontically treated maxillary central incisors. <b> Materials and Methods:</b> Sixty central incisor teeth were selected and grouped into six groups, viz. A, B, C, D, E, and F, each consisting of 10 specimens. Group A specimens were not subjected to any restorative treatment. Group B specimens were endodontically treated and crowned. Specimens of groups C and D were restored with custom cast post and core. Specimens of groups E and F were treated with prefabricated titanium post and composite core. Specimens of groups C and E were restored with porcelain-fused metal (PFM) crown having 2 mm ferrule. Specimens of groups D and F were restored with PFM crown having no ferrule. All the specimens were subjected to load (newton, N) on the lingual surface at a 135° angle to the long axis with a universal testing machine until it fractured. The fracture load and mode of fracture of each specimen were noted. One-way analysis of variance with Tukey honestly significant difference procedure was employed to identify the significant difference among the groups at 5% level (<i>P</i> < 0.05). <b> Results:</b> There were significant differences among the six groups studied (<i>P</i> < 0.0001). The highest fracture strength was recorded with specimen of group C (1376.7 N). There were significant differences between groups A and D versus groups B, E, and F. There were no significant differences between groups B, E, and F. Cervical root fracture was the predominant mode of failure in all the groups except group A. <b> Conclusion:</b> The results showed that endodontically treated teeth restored with custom cast post core were as strong as the untreated group. Teeth restored with custom cast post core were better resistant to fracture than teeth restored with prefabricated titanium post and composite core. Ferrule is more important in custom cast post core than in prefabricated post and composite core. |
topic |
Endodontically treated teeth fracture resistance post and core |
url |
http://www.ijdr.in/article.asp?issn=0970-9290;year=2008;volume=19;issue=1;spage=17;epage=21;aulast=Sendhilnathan |
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