Bond strength between root dentin and three glass-fiber post systems

Kalkan, Mustafa; Üşümez, Aslıhan; Öztürk, Akif Muhtar; Bellí, Sema; Eskitaşçıoğlu, Gürcan

doi:10.1016/j.prosdent.2006.05.005

Cited by 90 publications

(105 citation statements)

References 20 publications

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“…Despite the methodological differences, previous studies (2,3,20,(22)(23)(24) have also verified higher bond strength in the coronal root canal region. Analysis of the failure modes confirm the lower values of adhesion in the apical region, with predominance of adhesive and mixed-type failures in this region.…”

Section: Discussionmentioning

confidence: 91%

Effect of light-activation with different light-curing units and time intervals on resin cement bond strength to intraradicular dentin

et al. 2012

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The aim of this study was to assess the bond strength of a resin cement to intraradicular dentin varying the light-curing unit and the moment at which the light was applied. Post spaces of endodontically treated canines were prepared. The roots were distributed into 6 groups (n=10) according to the light-curing unit and the moment of light exposure: I) Quartz tungsten halogen-600 mW/cm² (QTH) + immediate light activation (t0); II) QTH + light activation after 10 min (t10); III) Light-emitting diodes (LED)-800 mW/cm² (LED-800)+ t0; IV) LED-800 + t10; V) LED-1,500 mW/cm² (LED-1500)+ t0; VI) LED-1500 + t10. After post cementation, slices from coronal, middle and apical post/root regions were submitted to the push-out test and failure evaluation. It was verified that LED-800 (4.40 ± 3.00 MPa) and LED-1500 (4.67 ± 3.04 MPa) provided bond strength statistically superior to QTH (3.13 ± 1.76 MPa) (p<0.05), and did not differ from each other (p>0.05). There was no significant difference between t0 and t10 (p>0.05). Coronal post/root region (4.75 ± 3.10 MPa) presented significantly higher bond strength than the apical (3.32 ± 2.30 MPa) (p<0.05) and middle regions (4.14 ± 2.99 MPa) showed intermediate values. Adhesive failures were predominant when using QTH. Adhesive and mixed failures occurred more frequently in the apical region. Higher adhesion of the resin cement to intraradicular dentin was observed in the coronal region with LED light-activation, regardless of the moment of light exposure.

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Section: Discussionmentioning

confidence: 91%

Effect of light-activation with different light-curing units and time intervals on resin cement bond strength to intraradicular dentin

et al. 2012

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“…The retentive strength was recorded and expressed in megapascals, dividing the load at failure by the area of the segment. 10,11,28 The results were statistically analyzed using Mann-Whitney variance analysis at a ¼ 0.05 for independent samples and Kruskal-Wallis with the Dunn post hoc test at a ¼ 0.05 to verify differences among the thirds in the same teeth. Table 2, the Mann-Whitney test showed differences between G1 and G2 in the middle and apical thirds (p¼0.001) and between G3 and G4 in …”

Section: Methodsmentioning

confidence: 99%

The Influence of Time and Cement Type on Push-Out Bond Strength of Fiber Posts to Root Dentin

Leme

Coutinho²,

Insaurralde³

et al. 2011

Operative Dentistry

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A self-adhesive resin cement can provide a significantly stronger bond than a three-step etch-and-rinse adhesive and resin cement when used to lute fiber posts. SUMMARYThe bond strength of fiber posts luted with resin cements was evaluated after two storage times in different regions of a post space. A total of 40 single-rooted human teeth were endodontically treated and prepared for cementation of fiber posts (White Post DC). In groups 1 and 3 (G1 and G3, respectively), posts were luted with RelyX ARC, whereas the posts in groups 2 and 4 (G2 and G4, respectively) were luted with RelyX Unicem. After one month of storage at 100% humidity, G1 and G2 were transversally sectioned in 1.7-mm slices of the cervical (C), middle (M), and apical (A) thirds of the post space and submitted to push-out testing at 1 mm/min. After nine months of storage, the roots of G3 and G4 underwent the same process. Mean values were analyzed using the Mann-Whitney and Kruskal-Wallis tests (a¼0.05). The bond strengths in G2 (C¼4.2662.29; M¼4.6763.54; A¼7.2764.30) were statistically higher than in G1 (C¼3.8161.07; M¼1.5761.62; A¼1.9961.60) in the middle and apical thirds (p¼0.001). Bond strengths in G4 (C¼3.3661.39; M¼4.4962.17; A¼3 . 8 361 . 9 2 ) w e r e h i g h e r t h a n i n G 3 (C¼2.1360.47; M¼0.9461.05; A¼0.9561.02) in all evaluated regions ( p¼0.02, p,0.001, and p,0.001, respectively). When comparing the root regions for each group, G1 had higher , 2011, 36-6, 643-648 values in the cervical third than the middle third (p¼0.02). The self-adhesive resin cement showed better results than the conventional resin cement at both storage times. For both materials a similar performance among the three root regions was found. Storage time did not influence the shear bond strength.

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“…7 The fracture resistance and survival probability of post and core restorations depend on several factors, such as the amount and condition of residual tooth structure, preparation of the tooth for restorative procedures, and characteristics of the fixed restoration, such as post material, core material, and luting cement. [8][9][10][11][12][13][14] Dual-polymerizing composite resins are widely used in modern adhesive restorative dentistry as both foundation resins and luting cements. 3 Autopolymerizing or light-polymerizing composite resins are also appropriate for these applications but have a few limitations.…”

Section: Introductionmentioning

confidence: 99%

Microhardness of dual-polymerizing resin cements and foundation composite resins for luting fiber-reinforced posts

Yoshida

Meng²

2014

The Journal of Prosthetic Dentistry

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Statement of problem. The optimal luting material for fiber-reinforced posts, to ensure the longevity of foundation restorations, remains undetermined.Purpose. The purpose of this study was to evaluate the suitability of 3 dual-polymerizing resin cements (DRCs) and 2 dual-polymerizing foundation composite resins (DFCRs) for luting fiber-reinforced posts by assessing their Knoop hardness number (KHN). Results. At both times after irradiation, the 5 resins materials showed the highest KHNs at the 0.5-mm depth. At 7 days after irradiation, the KHNs of the resin materials did not differ significantly between the 8.0-mm and 10.0-mm depths (P>.05). For all materials, the KHNs at 7 days after irradiation were significantly higher than those at 0.5 hour after irradiation at all depths (P<.05). At 7 days after irradiation, the KHNs of the 5 resin materials were found to decrease in the following order: DCP, UCE, PF2, SAC, and GLA (P<.05). Material and methods. Conclusions.The KHN depends on the depth of the cavity, the length of time after irradiation, and the material brand. Although the KHNs of the 2 DFCRs were higher than those of the 3 DRCs, notable differences were seen among the 5 materials at all depths and at both times after irradiation. Clinical ImplicationsWithin the limitations of this in vitro study, dual-polymerizing foundation composite resins may be preferable to dual-polymerizing resin cements for luting fiber-reinforced posts into cavities because of their superior KHNs at all cavity depths.

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Bond strength between root dentin and three glass-fiber post systems

Cited by 90 publications

References 20 publications

Effect of light-activation with different light-curing units and time intervals on resin cement bond strength to intraradicular dentin

Effect of light-activation with different light-curing units and time intervals on resin cement bond strength to intraradicular dentin

The Influence of Time and Cement Type on Push-Out Bond Strength of Fiber Posts to Root Dentin

Microhardness of dual-polymerizing resin cements and foundation composite resins for luting fiber-reinforced posts

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