scholarly journals Effect of Sonic Application of Self-Adhesive Resin Cements on Push-Out Bond Strength of Glass Fiber Posts to Root Dentin

Materials ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 1930
Author(s):  
Darlon Martins Lima ◽  
Thátyla Silva Linhares ◽  
Suellen Nogueira Linares Lima ◽  
Edilausson Moreno Carvalho ◽  
Alessandro Dourado Loguercio ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Fracture Pattern ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Luting Cement ◽  
Glass Fiber Posts ◽  
Root Dentin ◽  
Push Out

The aim of this study was to evaluate the influence of a sonic application of self-adhesive resin cements on the bond strength of glass fiber posts to root dentin. Eighty bovine incisors were randomly divided into eight groups (n = 10). Four self-adhesive resin cements were used—RelyX U200 (3M/ESPE), Bifix SE (Voco), seT PP (SDI), and Panavia SA (Kuraray). The cements were inserted into the root canal in two different modes—Centrix syringe (control) or with a sonic device (Sonic Smart). The roots were sectioned and taken to a universal test machine (Instron 3342) to perform the push-out test. The fracture pattern was evaluated by stereomicroscope and scanning electron microscope. The bond strength data were analyzed by two-way ANOVA and Tukey tests (α = 0.05). The interaction between the main factors was significant (p = 0.002). The sonic application increased the bond strength in comparison with the conventional application for the RelyX U200 (p < 0.001) and Bifix SE (p < 0.017) cements. However, for the seT PP and Panavia SA cements, the bond strength values did not differ significantly (p > 0.05). The fracture pattern showed adhesive at the interface between the luting cement and the dentin. Using a sonic device in the application of self-adhesive resin cement helpedpromote an increase in the bond strength for RelyX U200 and Bifix SE.

scholarly journals Glass fiber posts

2020 ◽  
Vol 19 ◽  
pp. e207508
Author(s):  
Renata Pereira ◽  
Rodrigo Barros Esteves Lins ◽  
Victória Castelan Rodrigues ◽  
Débora Alves Nunes Leite Lima ◽  
Luís Roberto Marcondes Martins ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Conventional Technique ◽  
Fracture Pattern ◽  
Fiber Posts ◽  
Luting Agent ◽  
Prevalent Fracture ◽  
Glass Fiber Posts ◽  
Push Out ◽  
Electron Microscope Data

Aim: Glass fiber posts are indicated in the rehabilitation of extensively damaged teeth; their cementation represents a critical step in restorative dentistry. The aim of this study was to quantify and compare the push-out bond strength of glass fiber posts cemented by conventional technique, two-step technique with luting agent and two-step technique associating bulk-fill composite and luting agent. Methods: Eighty maxillary bovine incisors were endodontically treated and divided into eight groups (n = 10) according to the luting agent (Rely X ARC and Duo-link) and cementation technique (conventional technique; two-step technique with luting agent; and two-step technique associating bulk-fill composite – Filtek Bulk-fill flow or Surefil SDR flow – and luting agent). Samples were submitted to pushout bond strength test, and the fracture pattern was evaluated through scanning electron microscope. Data were submitted to two-way ANOVA and Tukey’s test (α = 0.05). Results: When Rely X ARC was used, the conventional cementation technique obtained higher bond strength values than the twostep technique associated with Filtek Bulk-fill flow. When Duolink was used, the two-step technique associated with Filtek Bulk-fill flow presented higher bond strength values than the conventional technique. The most prevalent fracture patterns were adhesive between luting agent and dentin, and adhesive between bulk-fill composite and dentin. Conclusion: Two-step cementation technique associated with bulk-fill composite may be promising depending on the luting agent used.

scholarly journals Relining effects on the push-out shear bond strength of glass fiber posts

2016 ◽  
Vol 45 (4) ◽  
pp. 227-233
Author(s):  
Adriana Rosado Valente ANDRIOLI ◽  
Margareth COUTINHO ◽  
Andréa Araújo de VASCONCELLOS ◽  
Milton Edson MIRANDA
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Shear Bond Strength ◽  
Resin Cement ◽  
Cervical Region ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Adhesive Resin Cement ◽  
Push Out

Abstract Introduction The correct use of glass fiber posts in endodontically treated teeth is essential for the clinical success of restorative treatment. Objective This study evaluated the push-out shear bond strength of relined (R) or non-relined (NR) glass fiber posts, cemented with self-adhesive resin cement [RelyXTM U100 (U100)] and conventional resin cement [RelyXTM ARC (ARC)]. Material and method Sixty human single-rooted teeth were endodontically treated and divided into ARC-NR; U100-NR; ARC-R; U100-R groups. The teeth were sectioned into cervical, middle and apical thirds, and subjected to the push-out test. Bond strength was analyzed by the Friedman test; cement and post types were compared by the Mann Whitney test. The pattern of failures was evaluated with digital camera through images at 200x magnification, and was classified as adhesive (at the cement/dentin or cement/post interface), cohesive (cement or post), and mixed failures. Result In ARC-NR, bond strength values were higher in the cervical third; in U100-NR and ARC-R they were similar between the thirds. In U100-R, in the cervical and middle thirds the bond strength values were similar, and there was lower value in the apical third. For non-relined glass fiber posts, the highest mean bond strength values were observed with self-adhesive resin cement. Whereas, relined posts cemented with conventional resin cement had stronger cement layer in comparison with non-relined fiber posts. Conclusion The post relining technique was efficient in ARC-R. ARC-NR and U100-R showed improved bond strength in the cervical region of canal walls. The main failures were adhesive at the cement-post interface.

scholarly journals Push-out bond strength of glass fiber posts luted with two resin cements

2017 ◽  
Vol 20 (4) ◽  
pp. 78
Author(s):  
Blanca Liliana Torres Léon ◽  
Vitor Lopes Franco ◽  
Emily Vivianne Freitas Silva ◽  
Leonardo Muniz ◽  
Fernando Carneiro Ribeiro
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Fiber Post ◽  
Resin Cements ◽  
Anterior Teeth ◽  
Fiber Posts ◽  
Post And Core Technique ◽  
Glass Fiber Posts ◽  
Glass Fiber Post ◽  
Push Out

<p class="CorpoA"><strong>Objective.</strong> To evaluate the bond strength of a prefabricated glass fiber post to the root dentin with two resin cements using the push-out test. <strong>Material and Methods.</strong> Thirty fiber posts (White Post ECD) were cemented in human endodontically treated anterior teeth with two resin cements (n=15): Relyx<sup>TM </sup>ARC and AllCem. The roots were transversely sectioned and divided in cervical, middle and apical thirds after 48 h of cementation. The specimens' retention was tested by push-out method. The results were analyzed by 2-way ANOVA and Tukey’s test (<em>p</em>&lt;0.05). <strong>Results.</strong> There were no significant differences in the bond strength between the resin cements. The bond strength was higher in cervical third than in middle and apical thirds for both resin cements. It was observed higher percentages of adhesive failures followed by mixed. <strong>Conclusions.</strong> Both resin cements are indicated in the cementation of glass fiber post.</p><p class="CorpoA"><strong>Keywords</strong></p><p class="CorpoA">Dental prosthesis; Post and core technique; Biomechanical phenomena.</p>

Effect of the frequency of mechanical pulses for fatigue aging testing on push-out bond strength between glass fiber posts and root dentin

2016 ◽  
Vol 30 (11) ◽  
pp. 1243-1252 ◽  
Author(s):  
Marília Pivetta Rippe ◽  
Vinícius Felipe Wandscher ◽  
César Dalmolin Bergoli ◽  
Paolo Baldissara ◽  
Mutlu Özcan ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Root Dentin ◽  
Push Out

scholarly journals Bond strength of glass fiber posts submitted to different luting protocols

2016 ◽  
Vol 31 (2) ◽  
pp. 77
Author(s):  
Fabiano Vieira De Landa ◽  
Jean Soares Miranda ◽  
Rodrigo Furtado De Carvalho ◽  
Estevão Tomomitsu Kimpara ◽  
Fabíola Pessôa Pereira Leite
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Testing Machine ◽  
Dentinal Tubules ◽  
Fiber Posts ◽  
Cutting Machine ◽  
Glass Fiber Posts ◽  
Glass Fiber Post ◽  
Root Dentin ◽  
Push Out

Objective: evaluate the effect of different luting protocols on the bond strength of glass fiber posts.Methods: Forty human canine teeth were randomly divided into four groups: Relyx U100/Endofill (R+E), Panavia F2.0/EndoFill (P+E), Relyx U100/Sealer 26 (R+S), Panavia F2.0/Sealer 26 (P+S). After the luting procedures, the samples were subjected to thermocycling (6.000 cycles; at 5±1 ºC and 55±1 ºC) and then sectioned in a precision cutting machine (Isomet 1000 Precision Saw) into 4 cuts of 2mm regarding to different deepness: Apical, Medium Apical, Medium Coronal, and Coronal. Next, the cuts were submitted to push-out test in a universal testing machine (EMIC) with load cell of 50N, at crosshead speed of 0.5mm/min.Results: They were obtained according to the different luting deepness (p≥0.05) (MPa): 1) apical – R+E (1.35±1.28), P+E (2.70±0.89), R+S (3.89±0.70), P+S (4.30±1.02); 2) medium apical – R+E (1.38±1.28), P+E (2.98±1.43), R+S (4.02±1.14), P+S (4.49±1.82); 3) medium coronal – R+E (2.46±0.73), P+E (3.72±0.78), R+S (4.85±0.71), P+S (6.14±0.73); 4) coronal R+E (5.59±1.08), P+E (5.74±1.06), R+S (6.71±1.07), P+S (7.40±1.51).Conclusion: There was a relationship between the luting protocol of the glass fiber post and the endodontic cement. Eugenol plays an important role inside the dentinal tubules by interfering negatively in the bond strength to root dentin.

scholarly journals Effect of Anatomical Customization of the Fiber Post on the Bond Strength of a Self-Adhesive Resin Cement

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Adricyla Teixeira Rocha ◽  
Leticia Machado Gonçalves ◽  
Ana Júlia de Carvalho Vasconcelos ◽  
Etevaldo Matos Maia Filho ◽  
Ceci Nunes Carvalho ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Resin Cement ◽  
Control Group ◽  
Fiber Post ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Adhesive Resin Cement ◽  
Push Out

Aim. The aim of the study was to evaluate, by means of the push-out test, the effect of the anatomical customization of the fiber post on the bond strength of a self-adhesive resin cement. Methods. Twelve endodontically treated, human, upper central incisors were randomly divided into two groups (n=6): control (glass fiber posts cemented with Relyx® U200) and customized (glass fiber posts anatomically customized with translucent composite resin cemented with Relyx U200). The roots were sectioned into three slices, cervical, middle, and apical, and photographed with a digital camera attached to a stereomicroscopic loupe. The images were analyzed by software, for evaluation of the cement line. The slices were subsequently submitted to the push-out test until the post had completely extruded, and the fracture mode was analyzed with a stereomicroscopic loupe. Results. The results showed significant differences between the groups in the different root thirds in relation to the area occupied by air bubbles (p<0.05). Bond strength, when all the thirds are considered, was 8.77 ± 4.89 MPa for the control group and 16.96 ± 4.85 MPa for the customized group. Conclusion. The customized group showed greater bond resistance than the control group and a more uniform cement layer.

scholarly journals Effect of Different Resin Cements on the Bond Strength of Custom-made Reinforced Glass Fiber Posts—A Push-out Study

2021 ◽  
Vol 22 (3) ◽  
pp. 219-223
Author(s):  
Patrícia MC Soares ◽  
Luis FSA Morgan ◽  
Stéphanie Q Tonelli ◽  
Francisco IR Limeira ◽  
Fábio FB Bruzinga ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Resin Cements ◽  
Fiber Posts ◽  
Custom Made ◽  
Glass Fiber Posts ◽  
Push Out

scholarly journals Effect of surface treatments on push-out bond strength of calcium silicate-based cements to fiber posts

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Amr M. Elnaghy ◽  
Ayman Mandorah ◽  
Ali H. Hassan ◽  
Alaa Elshazli ◽  
Shaymaa Elsaka
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Glass Fiber ◽  
Calcium Silicate ◽  
Surface Treatments ◽  
The Other ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Push Out ◽  
Effect Of Surface

Abstract Background To evaluate the effect of surface treatments on the push-out bond strength of Biodentine (BD) and white mineral trioxide aggregate (WMTA) to fiber posts. Methods Two brands of fiber posts were used: Reblida post; RP and RelyX post; RX. Each type of post (n = 80/group) was divided into four groups (n = 20/group) and exposed to surface treatment as follows: Control (no treatment), sandblasting (SB), hydrofluoric acid (HF), and TiF4 4 wt/v%. Each group was further subdivided into two subgroups (n = 10/subgroup) based on the type of CSCs used as follows: Subgroup A: BD and Subgroup B: WMTA. Push-out bond strength of BD and WMTA to glass fiber posts was assessed. Data were statistically analyzed using three-way ANOVA and Tukey’s test. A Weibull analysis was performed on the push-out bond strength data. Results BD showed higher bond strength than WMTA (P < 0.001). The push-out bond strength for posts treated with TiF4 4 wt/v% showed greater bond strength than the other surface treatments (P < 0.05). The BD/RP-TiF4 4 wt/v% showed the greater characteristic bond strength (σ0) (15.93) compared with the other groups. Surface treatments modified the surface topography of glass fiber posts. Conclusions The BD/RP-TiF4 4 wt/v% showed greater bond strength compared with the other groups. The TiF4 4 wt/v% surface treatment enhanced the bond strength of BD and WMTA to glass fiber posts than the other treatments. Surface treatment of fiber post with TiF4 4 wt/v% could be used to improve the bond strength with calcium silicate-based cements.

CAD/CAM Milled Glass Fiber Posts: Adaptation and Mechanical Behavior in Flared Root Canals

2021 ◽  
Author(s):  
MER Gama ◽  
GS Balbinot ◽  
GC Ferreira ◽  
EG Mota ◽  
VCB Leitune ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Fiber Post ◽  
Root Canals ◽  
Fiber Posts ◽  
Cad Cam ◽  
Glass Fiber Posts ◽  
Glass Fiber Post ◽  
Post And Core ◽  
Push Out

SUMMARY This study aimed to evaluate the cementation and mechanical behavior of flared root canals restored with CAD/CAM milled glass fiber post-and-core systems. Sixty-six endodontically treated human canines with a flared root canal were divided into three different groups according to the type of post: GPF received prefabricated posts; GREL received relined glass fiber posts, and GMILLED received CAD/CAM milled glass fiber posts. Cementation was performed with self-adhesive resin cement. The samples were submitted to x-ray microcomputed tomography analysis for the analysis of voids and gaps. The roots were sectioned and submitted to the push-out bond strength test. The load-to-fracture was evaluated in post-and-core systems. GMILLED presented lower void and lower gap volumes when compared to GPF and GREL. On the load-to-fracture test, GREL presented statistically significant higher values than GMILLED. GPF values had no statistically significant difference from the two other groups. On the push-out bond strength test, GPF presented statistically significant lower values when compared to GREL and GMILLED. The most common failure pattern was between dentin and cement in all groups. CAD/CAM milled glass fiber post-and-core systems presented an enhanced adaptation of glass fiber posts to flared root canal systems. Their results were comparable to relined posts in bond strength, while load-to-fracture-results for GMILLED were lower than those for GPF.

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