Strengthening effect of different fiber placement designs on root canal treated and bleached premolars

Küçük, Ö.; Keçeci, Ayşe Diljin

doi:10.1007/s10266-020-00549-1

Cited by 5 publications

(8 citation statements)

References 46 publications

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“…One study compared a pre-impregnated fiberglass net with polyethylene fiber net [ 20 ]. Seven publications reported an increased fracture resistance for the horizontally splinted groups [ 20 , 21 , 22 , 23 , 24 , 25 ]. From the other four studies, three reported no significant difference for the fracture resistance of the horizontal long-fiber reinforcement, compared to direct composite restorations [ 26 , 27 ].…”

Section: Resultsmentioning

confidence: 99%

“…Only one article stated that the horizontal intercuspal splinting resulted in a lower fracture resistance compared to the conventional composite restoration [ 28 ]. Regarding the fracture pattern, five out of the included studies reported a positive effect of long-fiber reinforcement on the fracture pattern [ 22 , 24 , 26 , 27 , 29 ]. On the other hand, four articles reported less favorable fracture patterns in the horizontally splinted groups [ 21 , 25 , 30 ], whilst two articles provided an inadequate amount of information on this matter [ 23 , 28 ].…”

Section: Resultsmentioning

confidence: 99%

“…Other FRC nets could be used for fixation or internal connection in cavities and/or restorations. Daher et al [ 22 ] and Küçük et al [ 24 ] used an FRC pre-impregnated strip (Dentapreg) to splint the remaining buccal and lingual walls. Dentapreg fibers are based on the S2 glass system embedded in Bis-GMA and TEGDMA in a cross-linked polymer matrix.…”

Section: Discussionmentioning

confidence: 99%

“…Bahari et al [ 26 ] and Küçük et al [ 24 ] used the same restorative method (i.e., occlusal splinting) but with different fibers (Interlig FRC fibers [ 26 ], and Dentapreg FRC fibers [ 24 ]). Küçük et al [ 24 ] managed to demonstrate an improved fracture resistance (1138 ± 168 N), and the occlusally splinted teeth not only outperformed the ones restored with the composite only (611 ± 194 N), but they did not differ significantly from sound teeth (1190 ± 495 N) either. In contrast, Bahari et al [ 26 ] did not find any improvement when using long fibers for occlusal splinting.…”

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Mechanical Performance of Direct Restorative Techniques Utilizing Long Fibers for “Horizontal Splinting” to Reinforce Deep MOD Cavities—An Updated Literature Review

Jakab

Volom²,

Sáry

et al. 2022

Polymers

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Excessive cavity preparation and root canal treatment leads to a weakened tooth structure with a lower resistance to fracture. Fiber reinforcement is frequently used to reinforce such teeth, and multiple fiber types and possible applications exist. Various methods for utilizing long fibers to internally splint the remaining cavity walls in the case of large mesio-occluso-distal (MOD) cavities have been proposed; however, no summary of their performance has been written up to now. Our study aims to review the available literature to evaluate and compare the mechanical performance of the different materials and methods utilized for horizontal splinting in large MOD cavities. Three independent authors performed a thorough literature search using PubMed, ScienceDirect, and Google Scholar up until January 2022. The authors selected in vitro studies that used long fibers placed horizontally in posterior teeth with large MOD cavities to reinforce these teeth. From 1683 potentially relevant articles, 11 publications met our inclusion criteria. Seven out of eleven studies showed that horizontal splinting with long fibers improved the fracture resistance of the restored teeth. Three articles showed no significant difference between the fracture resistance of the restored groups. Only one article reported a lower fracture resistance to the horizontally splinted group, compared to conventional direct composite restoration. Within the limitations of this review, evidence suggests that long fiber reinforcement could be used to improve the fracture resistance of heavily restored teeth.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Mechanical Performance of Direct Restorative Techniques Utilizing Long Fibers for “Horizontal Splinting” to Reinforce Deep MOD Cavities—An Updated Literature Review

Jakab

Volom²,

Sáry

et al. 2022

Polymers

View full text Add to dashboard Cite

show abstract

“…Root canal treatment and post space preparation can damage the root dentin and lead to incomplete cracks or craze lines that can develop into VRF [4][5][6]. Research agrees that root canal-treated teeth cannot be reinforced with cemented metal posts and adhesively luted berreinforced composite (FRC) posts are a promising technique for reinforcing teeth [7][8][9][10]. FRC posts have a superior stress distribution due to their dentin-like Young's modulus and adhesion to root dentin [7,11].…”

Section: Introductionmentioning

confidence: 99%

Vertical root fracture resistance and crack formation of root canal-treated teeth restored with different post-luting systems

Rathke

Frehse

Hrusa

2022

Preprint

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To investigate the vertical root fracture (VRF) resistance and crack formation of root canal-treated teeth restored with different post-luting systems. Human maxillary lateral incisors of similar size were decoronated, assigned to five groups (n = 18, power = 0.9) and embedded in acrylic blocks with artificial periodontium. After root canal filling, post spaces were prepared and coated fiber-reinforced composite (FRC) or sandblasted titanium (TIT) posts of the same shape and size were placed. Half of the posts were zinc phosphate cemented (C), while the other half was adhesively luted (A). Untreated teeth served as control. After thermal cycling and staircase loading in a chewing simulator, the crack formation on the root dentin surface was microscopically examined and classified as no defect, craze line, vertical crack, and horizontal crack. Subsequently, the samples were loaded until root fracture. Data were analyzed by one-way ANOVA, Tukey's test, and Fisher's exact test. All samples survived the chewing simulation without VRF, but crack formation was significantly different between the groups (P = 0.009). The control showed significantly fewer defects than FRC/C, TIT/C, and TIT/A (P = 0.001, P = 0.008, P = 0.008, respectively). FRC/C showed the highest incidence of vertical cracks. FRC/A had the lowest incidence of defects. There was no significant difference in VRF resistance between the groups (P = 0.265). Adhesively luted FRC posts did not increase VRF resistance but reduced the risk of defects. Most defects were craze lines and vertical root cracks.

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Vertical root fracture resistance and crack formation of root canal-treated teeth restored with different post-luting systems

Rathke

Frehse

Hrusa³

2022

Odontology

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The aim was to investigate the vertical root fracture (VRF) resistance and crack formation of root canal-treated teeth restored with different post-luting systems. Human maxillary lateral incisors of similar size were decoronated, assigned to five groups (n = 18, power = 0.9) and embedded in acrylic blocks with artificial periodontal ligament. After root canal filling, post spaces were prepared to place coated fiber-reinforced composite (FRC) or sandblasted titanium (Ti) posts of the same shape and size. Half of the posts were zinc phosphate cemented (C), while the other half was adhesively luted (A). Untreated teeth served as control. After thermal cycling and staircase loading in a chewing simulator, the crack formation on the root dentin surface was microscopically examined and classified as no defect, craze line, vertical crack, and horizontal crack. Subsequently, the samples were loaded until root fracture. Data were analyzed by one-way ANOVA, Tukey’s test, and Fisher’s exact test. All samples survived the chewing simulation without VRF, but crack formation was significantly different between the groups (P = 0.009). The control showed significantly fewer defects than FRC/C, Ti/C, and Ti/A (P = 0.001, P = 0.008, P = 0.008, respectively). FRC/C showed the highest incidence of vertical cracks. FRC/A had the lowest incidence of defects. There was no significant difference in VRF resistance between the groups (P = 0.265). Adhesively luted FRC posts did not increase VRF resistance but reduced the risk of defects. Most defects were craze lines and vertical root cracks.

show abstract

Strengthening effect of different fiber placement designs on root canal treated and bleached premolars

Cited by 5 publications

References 46 publications

Mechanical Performance of Direct Restorative Techniques Utilizing Long Fibers for “Horizontal Splinting” to Reinforce Deep MOD Cavities—An Updated Literature Review

Mechanical Performance of Direct Restorative Techniques Utilizing Long Fibers for “Horizontal Splinting” to Reinforce Deep MOD Cavities—An Updated Literature Review

Vertical root fracture resistance and crack formation of root canal-treated teeth restored with different post-luting systems

Vertical root fracture resistance and crack formation of root canal-treated teeth restored with different post-luting systems

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