Influence of the Fiber Post Length on the Fracture Strength of Endodontically Treated Teeth
<i>Background and Objectives:</i> Although fiber posts are widely used in the restoration of endodontically treated teeth (ETT), their ideal cementation depth into the root canal is still debated in literature. The aim of the present study was to evaluate whether the different intra-radi...
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MDPI AG
2023-10-01
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| Series: | Medicina |
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| Online Access: | https://www.mdpi.com/1648-9144/59/10/1797 |
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| author | Adrian-George Marinescu Osama Abuabboud Ștefana-Denisa Zimbru Laura-Elena Cîrligeriu Bianca-Adina Piț Ioana-Amalia Borcean Mihai Paven Luminița-Maria Nica Dan Ioan Stoia |
| author_facet | Adrian-George Marinescu Osama Abuabboud Ștefana-Denisa Zimbru Laura-Elena Cîrligeriu Bianca-Adina Piț Ioana-Amalia Borcean Mihai Paven Luminița-Maria Nica Dan Ioan Stoia |
| author_sort | Adrian-George Marinescu |
| collection | DOAJ |
| description | <i>Background and Objectives:</i> Although fiber posts are widely used in the restoration of endodontically treated teeth (ETT), their ideal cementation depth into the root canal is still debated in literature. The aim of the present study was to evaluate whether the different intra-radicular insertion lengths of the fiber posts influence the fracture strength of ETT. <i>Materials and Methods:</i> A total of 10 permanent human lower incisors with straight roots of similar length and volume extracted for periodontal reason were sectioned 2 mm above the cement–enamel junction (CEJ) to a total length of 18 mm and endodontically treated in the same manner, then randomly divided into two groups of five each (Groups 1 and 2, <i>n</i> = 5). Two sound incisors, with no endodontic treatment, were used as the control group (Group 3, <i>n</i> = 2). After one week of storage in a humid environment, spaces for fiber post no. 1 (Reforpost, Angelus, Londrina, PR, Brazil) were prepared in the first two groups at a depth of 5 mm (Group 1) and 7 mm (Group 2), and the fiber posts were adhesively cemented using self-adhesive resin cement (Maxcem Elite, Kerr GmbH, Herzogenrath, Germany). After 7 days, the samples were vertically positioned and fixed in a self-curing transparent acrylic resin, up to 2 mm below the CEJ level, and mechanically tested in compression after another week of storage using a displacement-controlled testing machine up to each sample’s fracture. The force–displacement curves were recorded for each sample, the means were calculated for each group and a statistical comparative analysis between groups was conducted. <i>Results:</i> Although no statistically significant differences between groups were observed, the highest mean fracture force (N) was recorded in Group 2 (1099.41 ± 481.89) in comparison to Group 1 (985.09 ± 330.28), even when compared to the sound, non-treated teeth (1045.69 ± 146.19). <i>Conclusions:</i> Within the limitations of this in vitro study, teeth where fiber posts were placed deeper into the root canal (7 mm) recorded slightly higher fracture forces in comparison with shorter lengths (5 mm). However, similar biomechanical performances obtained in the mechanical tests showed no statistical differences between the 7 mm and the 5 mm inserted posts. |
| first_indexed | 2024-03-10T21:04:32Z |
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| language | English |
| last_indexed | 2024-03-10T21:04:32Z |
| publishDate | 2023-10-01 |
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| spelling | doaj.art-34ea2d43c1044ed98c4b0d3771dddbcb2023-11-19T17:17:23ZengMDPI AGMedicina1010-660X1648-91442023-10-015910179710.3390/medicina59101797Influence of the Fiber Post Length on the Fracture Strength of Endodontically Treated TeethAdrian-George Marinescu0Osama Abuabboud1Ștefana-Denisa Zimbru2Laura-Elena Cîrligeriu3Bianca-Adina Piț4Ioana-Amalia Borcean5Mihai Paven6Luminița-Maria Nica7Dan Ioan Stoia8Department of Restorative Dentistry and Endodontics, Research Center TADERP, Faculty of Dentistry, “Victor Babeș” U.M.Ph.–Timisoara, 300041 Timisoara, RomaniaFaculty of Dentistry, “Victor Babeș” U.M.Ph.–Timisoara, 300041 Timisoara, RomaniaFaculty of Dentistry, “Victor Babeș” U.M.Ph.–Timisoara, 300041 Timisoara, RomaniaDepartment of Restorative Dentistry and Endodontics, Research Center TADERP, Faculty of Dentistry, “Victor Babeș” U.M.Ph.–Timisoara, 300041 Timisoara, RomaniaFaculty of Dentistry, “Victor Babeș” U.M.Ph.–Timisoara, 300041 Timisoara, RomaniaFaculty of Dentistry, “Victor Babeș” U.M.Ph.–Timisoara, 300041 Timisoara, RomaniaDepartment of Restorative Dentistry and Endodontics, Research Center TADERP, Faculty of Dentistry, “Victor Babeș” U.M.Ph.–Timisoara, 300041 Timisoara, RomaniaDepartment of Restorative Dentistry and Endodontics, Research Center TADERP, Faculty of Dentistry, “Victor Babeș” U.M.Ph.–Timisoara, 300041 Timisoara, RomaniaDepartment of Mechanics and Strength of Materials, Polytechnica University Timisoara, 300006 Timișoara, Romania<i>Background and Objectives:</i> Although fiber posts are widely used in the restoration of endodontically treated teeth (ETT), their ideal cementation depth into the root canal is still debated in literature. The aim of the present study was to evaluate whether the different intra-radicular insertion lengths of the fiber posts influence the fracture strength of ETT. <i>Materials and Methods:</i> A total of 10 permanent human lower incisors with straight roots of similar length and volume extracted for periodontal reason were sectioned 2 mm above the cement–enamel junction (CEJ) to a total length of 18 mm and endodontically treated in the same manner, then randomly divided into two groups of five each (Groups 1 and 2, <i>n</i> = 5). Two sound incisors, with no endodontic treatment, were used as the control group (Group 3, <i>n</i> = 2). After one week of storage in a humid environment, spaces for fiber post no. 1 (Reforpost, Angelus, Londrina, PR, Brazil) were prepared in the first two groups at a depth of 5 mm (Group 1) and 7 mm (Group 2), and the fiber posts were adhesively cemented using self-adhesive resin cement (Maxcem Elite, Kerr GmbH, Herzogenrath, Germany). After 7 days, the samples were vertically positioned and fixed in a self-curing transparent acrylic resin, up to 2 mm below the CEJ level, and mechanically tested in compression after another week of storage using a displacement-controlled testing machine up to each sample’s fracture. The force–displacement curves were recorded for each sample, the means were calculated for each group and a statistical comparative analysis between groups was conducted. <i>Results:</i> Although no statistically significant differences between groups were observed, the highest mean fracture force (N) was recorded in Group 2 (1099.41 ± 481.89) in comparison to Group 1 (985.09 ± 330.28), even when compared to the sound, non-treated teeth (1045.69 ± 146.19). <i>Conclusions:</i> Within the limitations of this in vitro study, teeth where fiber posts were placed deeper into the root canal (7 mm) recorded slightly higher fracture forces in comparison with shorter lengths (5 mm). However, similar biomechanical performances obtained in the mechanical tests showed no statistical differences between the 7 mm and the 5 mm inserted posts.https://www.mdpi.com/1648-9144/59/10/1797endodontically treated teethfiber postpost lengthfracture strengthself-adhesive resin cements |
| spellingShingle | Adrian-George Marinescu Osama Abuabboud Ștefana-Denisa Zimbru Laura-Elena Cîrligeriu Bianca-Adina Piț Ioana-Amalia Borcean Mihai Paven Luminița-Maria Nica Dan Ioan Stoia Influence of the Fiber Post Length on the Fracture Strength of Endodontically Treated Teeth Medicina endodontically treated teeth fiber post post length fracture strength self-adhesive resin cements |
| title | Influence of the Fiber Post Length on the Fracture Strength of Endodontically Treated Teeth |
| title_full | Influence of the Fiber Post Length on the Fracture Strength of Endodontically Treated Teeth |
| title_fullStr | Influence of the Fiber Post Length on the Fracture Strength of Endodontically Treated Teeth |
| title_full_unstemmed | Influence of the Fiber Post Length on the Fracture Strength of Endodontically Treated Teeth |
| title_short | Influence of the Fiber Post Length on the Fracture Strength of Endodontically Treated Teeth |
| title_sort | influence of the fiber post length on the fracture strength of endodontically treated teeth |
| topic | endodontically treated teeth fiber post post length fracture strength self-adhesive resin cements |
| url | https://www.mdpi.com/1648-9144/59/10/1797 |
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