Fracture resistance of endodontically treated teeth restored by different FRC posts: An in vitro study

Torabi, Kianoosh; Fattahi, Farnaz

doi:10.4103/0970-9290.57359

Cited by 44 publications

(63 citation statements)

References 24 publications

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“…18 Rigid metallic posts were responsible for stress concentration at the apical end and the coronal third of the canal wall, resulting in catastrophic vertical root fractures. 19 This finding is consistent with Kaur et al who demonstrated higher fracture with cast post compared to glass fibre post and composite core. 20 Our results confirm findings reported by Pasqualin et al 21 and Verrisimo et al 22 that the cast metal posts have a lower value of fracture resistance than fibre posts.…”

Section: Discussionsupporting

confidence: 90%

A comparative evaluation of fracture resistance of endodontically treated teeth restored with three different post and core systems and two different luting agents – an invitro study

Chandran¹,

Noushad²,

Balan³

2017

Int J Recent Sci Res

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ARTICLE INFO ABSTRACTPurpose: To compare fracture resistance and primary mode of failure of endodontically treated teeth with three different posts systems and two variant luting agents. Materials and Methods: Root canal treatment was performed on 40 maxillary incisors and samples were divided into 4 groups. For three experimental groups post space preparation was done and teeth were restored with cast post-core (Group B), prefabricated glass fibre post (everStick post) with composite core (Group C) and prefabricated zirconia posts with composite core (Group D). Control group (A) samples were selected with intact coronal structure. Post space was prepared in all samples. Two type of luting cements dual cure resin cement (Luxacore Z) and glass ionomer cement (Fuji I, GC) were used for post cementation. The core was standardized to 4mm × 5mm. Prepared samples were subjected to compressive load of 0.5mm/min at 135º angulation. The load at which fracture occurred and fracture mode were analysed statistically by one way ANOVA, post-hoc tukey test and chi-square test. Results:The findings showed statistically significant difference between failure loads. The mean load required to fracture glass fibre was highest (711MPa) and least for control group (231MPa). The glass fibre posts and zirconia posts showed favorable fracture. Conclusion:The results concluded that endodontically treated teeth without post core system showed least fracture resistance signifying need to reinforce tooth. Use of glass fibre post (everStick post) showed highest mean fracture resistance regardless of luting agent.

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Section: Discussionsupporting

confidence: 90%

A comparative evaluation of fracture resistance of endodontically treated teeth restored with three different post and core systems and two different luting agents – an invitro study

Chandran¹,

Noushad²,

Balan³

2017

Int J Recent Sci Res

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“…Fiber posts have a low elastic modulus and are capable of dissipating stress, and can achieve strong bonding effects with the dentin through resin binder, forming a relatively homogeneous structure. Therefore, the fiber post is able to uniformly distribute the stress along the root, which will improve flexural capacity of the teeth and reduce the risk of root fracture [8,15,16] .…”

Section: Discussionmentioning

confidence: 99%

Fracture resistance and failure patterns of open apex root teeth with different posts after endodontic treatment

Yan

Chen

2011

J. Huazhong Univ. Sci. Technol. [Med. Sci.]

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The aim of this study is to investigate the influence of different posts on the fracture mechanics of endodontically-treated teeth with open apex. Forty-eight human maxillary anterior teeth were collected, and the root was transversely sectioned 12 mm under the cementoenamal junction (CEJ). These samples were then randomly divided into two groups, i.e., minor diameter open apex root (group A) and major diameter open apex root (group B), with mineral trioxide aggregate (MTA) placed into the apical 4 mm in the root canals. Subsequently, both groups were respectively further divided into three subgroups as follows: fiber-post (subgroup 1), metal post (subgroup 2) and non-post (subgroup 3) group. Teeth were restored with a composite resin crown and tested by using a universal testing machine at the rate of 1 mm/min cross-head. Values of the maximum fracture resistance and failure patterns were recorded and compared among all subgroups. In addition, the changes of MTA properties were carefully examined via X-ray photography. Our results indicate that (1) In group A, the mean value of fracture resistance for teeth restored with fiber posts were statistically higher than that with either metal post or non-post; (2) In group B, there was no statistically significant difference in the mean value of fracture resistance among three subgroups; (3) No statistical significance in the mean value of fracture resistance was found between group A and group B; (4) The failure modes of most samples (58%) were irreparable; (5) MTA in two teeth developed cracks after loading tests. In conclusion, endodontically-treated teeth restored with fiber posts are more resistant to fracture than those restored with either metal posts or non-post, and most of the fracture modes are catastrophic in nature.

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“…(12) With the recent improvements in the dental materials, resin-based restorative materials with tooth-colored fiber post are of choice because of several advantages such as a suitable elastic modulus, esthetics, good bonding between post and cement, lower chair time, and minimal tissue removal. (13,14) The use of a fiber post with fractured teeth, as it interlocks the two fragments, minimizes the stress on the reattached tooth fragment. (13,14) Follow-up visits are critically important for all traumatic injuries.…”

Section: Discussionmentioning

confidence: 99%

“…(13,14) The use of a fiber post with fractured teeth, as it interlocks the two fragments, minimizes the stress on the reattached tooth fragment. (13,14) Follow-up visits are critically important for all traumatic injuries. The patient should be followed for 3, 6, 12 months and yearly for 5 years.…”

Section: Discussionmentioning

confidence: 99%

Management of Complicated Crown-Root Fracture by Fragment Reattachment Using Fibre-Post: An Aesthetic Alternative

Malik¹,

Raj²,

Vivek³

2017

IOSR JDMS

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Fracture resistance of endodontically treated teeth restored by different FRC posts: An in vitro study

Cited by 44 publications

References 24 publications

A comparative evaluation of fracture resistance of endodontically treated teeth restored with three different post and core systems and two different luting agents – an invitro study

A comparative evaluation of fracture resistance of endodontically treated teeth restored with three different post and core systems and two different luting agents – an invitro study

Fracture resistance and failure patterns of open apex root teeth with different posts after endodontic treatment

Management of Complicated Crown-Root Fracture by Fragment Reattachment Using Fibre-Post: An Aesthetic Alternative

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