Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength
Objective: To evaluate the impact of the type of root canal preparation, intraradicular post and mechanical cycling on the fracture strength of roots. Material and Methods: eighty human single rooted teeth were divided into 8 groups according to the instruments used for root canal preparation (man...
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| Format: | Article |
| Language: | English |
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University of São Paulo
2014-06-01
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| Series: | Journal of Applied Oral Science |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572014000300165&lng=en&tlng=en |
| _version_ | 1811197968274948096 |
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| author | Marília Pivetta RIPPE Manuela Favarin SANTINI Carlos Alexandre Souza BIER Paolo BALDISSARA Luiz Felipe VALANDRO |
| author_facet | Marília Pivetta RIPPE Manuela Favarin SANTINI Carlos Alexandre Souza BIER Paolo BALDISSARA Luiz Felipe VALANDRO |
| author_sort | Marília Pivetta RIPPE |
| collection | DOAJ |
| description | Objective: To evaluate the impact of the type of root canal preparation, intraradicular post and mechanical cycling on the fracture strength of roots. Material and Methods: eighty human single rooted teeth were divided into 8 groups according to the instruments used for root canal preparation (manual or rotary instruments), the type of intraradicular post (fiber posts- FRC and cast post and core- CPC) and the use of mechanical cycling (MC) as follows: Manual and FRC; Manual, FRC and MC; Manual and CPC; Manual, CPC and MC; Rotary and FRC; Rotary, FRC and MC; Rotary and CPC; Rotary, CPC and MC. The filling was performed by lateral compactation. All root canals were prepared for a post with a 10 mm length, using the custom #2 bur of the glass fiber post system. For mechanical cycling, the protocol was applied as follows: an angle of incidence of 45°, 37°C, 88 N, 4 Hz, 2 million pulses. All groups were submitted to fracture strength test in a 45° device with 1 mm/ min cross-head speed until failure occurred. Results: The 3-way ANOVA showed that the root canal preparation strategy (p<0.03) and post type (p<0.0001) affected the fracture strength results, while mechanical cycling (p=0.29) did not. Conclusion: The root canal preparation strategy only influenced the root fracture strength when restoring with a fiber post and mechanical cycling, so it does not seem to be an important factor in this scenario. |
| first_indexed | 2024-04-12T01:21:48Z |
| format | Article |
| id | doaj.art-8d854cde7d2c4b929aa30aeb5e021a02 |
| institution | Directory Open Access Journal |
| issn | 1678-7765 |
| language | English |
| last_indexed | 2024-04-12T01:21:48Z |
| publishDate | 2014-06-01 |
| publisher | University of São Paulo |
| record_format | Article |
| series | Journal of Applied Oral Science |
| spelling | doaj.art-8d854cde7d2c4b929aa30aeb5e021a022022-12-22T03:53:45ZengUniversity of São PauloJournal of Applied Oral Science1678-77652014-06-0122316517310.1590/1678-775720130051S1678-77572014000300165Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strengthMarília Pivetta RIPPEManuela Favarin SANTINICarlos Alexandre Souza BIERPaolo BALDISSARALuiz Felipe VALANDROObjective: To evaluate the impact of the type of root canal preparation, intraradicular post and mechanical cycling on the fracture strength of roots. Material and Methods: eighty human single rooted teeth were divided into 8 groups according to the instruments used for root canal preparation (manual or rotary instruments), the type of intraradicular post (fiber posts- FRC and cast post and core- CPC) and the use of mechanical cycling (MC) as follows: Manual and FRC; Manual, FRC and MC; Manual and CPC; Manual, CPC and MC; Rotary and FRC; Rotary, FRC and MC; Rotary and CPC; Rotary, CPC and MC. The filling was performed by lateral compactation. All root canals were prepared for a post with a 10 mm length, using the custom #2 bur of the glass fiber post system. For mechanical cycling, the protocol was applied as follows: an angle of incidence of 45°, 37°C, 88 N, 4 Hz, 2 million pulses. All groups were submitted to fracture strength test in a 45° device with 1 mm/ min cross-head speed until failure occurred. Results: The 3-way ANOVA showed that the root canal preparation strategy (p<0.03) and post type (p<0.0001) affected the fracture strength results, while mechanical cycling (p=0.29) did not. Conclusion: The root canal preparation strategy only influenced the root fracture strength when restoring with a fiber post and mechanical cycling, so it does not seem to be an important factor in this scenario.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572014000300165&lng=en&tlng=enPost and coreRoot canal preparationAging |
| spellingShingle | Marília Pivetta RIPPE Manuela Favarin SANTINI Carlos Alexandre Souza BIER Paolo BALDISSARA Luiz Felipe VALANDRO Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength Journal of Applied Oral Science Post and core Root canal preparation Aging |
| title | Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength |
| title_full | Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength |
| title_fullStr | Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength |
| title_full_unstemmed | Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength |
| title_short | Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength |
| title_sort | effect of root canal preparation type of endodontic post and mechanical cycling on root fracture strength |
| topic | Post and core Root canal preparation Aging |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572014000300165&lng=en&tlng=en |
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