Effect of Surface Treatment of Fiberglass Posts on Bond Strength to Root Dentin

This study evaluated the influence of the surface treatments of fiberglass posts on bond strength to root dentin using push-out test. Forty bovine incisor roots were endodontically treated. The surface of the fiberglass posts (Exacto #2, Angelus) were treated using 4 different protocols (n=10): Control - 70% ethanol for 1 min; 37% phosphoric acid for 1 min; 10% hydrofluoric acid for 1 min; and 24% hydrogen peroxide for 1 min. After a silane coupling agent was applied for 1 min and all posts were cemented using self-adhesive resin cement (RelyX Unicem, 3M-ESPE). The roots were sectioned and two 1-mm-thick slices were obtained from each third: cervical, middle and apical. The specimens were subjected to the push-out test with a crosshead speed of 0.5 mm/min. Data were analyzed by repeated measures ANOVA followed by Tukey's HSD tests (=0.05). The surface treatment (p<0.001) and root third region (p=0.007) factors were significant. The retention to root canal was affected by surface treatment type. The post surface treatment with 24% hydrogen peroxide for 1 min yielded significantly higher bond strength when the fiberglass posts were cemented with RelyX Unicem.

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Effect of Glass Fiber Post Surface Treatment on Bond Strength of a Self-Adhesive Resin Cement: An “In Vitro” Study

International Journal of Dentistry ◽

10.1155/2021/8856657 ◽

2021 ◽

Vol 2021 ◽

pp. 1-8

Author(s):

Lairds Rodrigues dos Santos ◽

Darlon Martins Lima ◽

Edilausson Moreno Carvalho ◽

Vandilson Pinheiro Rodrigues ◽

Claudia Maria Coelho Alves

Keyword(s):

Hydrogen Peroxide ◽

Bond Strength ◽

Aluminum Oxide ◽

Surface Treatment ◽

Glass Fiber ◽

Resin Cement ◽

Adhesive Failure ◽

Adhesive Resin ◽

Oxide Particles ◽

Adhesive Resin Cement

Objective. This study evaluated the influence of different mechanical and chemical surface treatments alone and combined with silane on the bond strength (BS) of glass fiber posts (GFPs) using self-adhesive resin cement. Methods. Eighty-four single-rooted bovine teeth (six groups, n = 14) were submitted to BS analysis after GFP cementation. The treatments applied in the studied groups were no surface treatment (control), silane (S), 24% hydrogen peroxide (PER), 24% hydrogen peroxide and silane (PER + SIL), blasting with 50 μm aluminum oxide particles (BLAST), and blasting with 50 μm aluminum oxide particles and silane (BLAST + SIL). Results. BS differed significantly among groups ( p < 0.001). It was higher in the SIL (10.5 ± 3.5 MPa), BLAST + SIL (11.5 ± 3.2 MPa), and PER + SIL (11.6 ± 4.6 MPa) groups than in the control (6.5 ± 2.9 MPa), BLAST (8.6 ± 4.0 MPa), and PER (7.1 ± 2.8 MPa) groups, with no significant difference among groups receiving silanization. Cement post adhesive failure was more common in the SIL, BLAST, and PER + SIL groups, and cement-dentin adhesive failure was more common in the control, BLAST + SIL, and PER groups. Conclusion. These results show that silane application alone increases BS.

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Can the Cure Time of Endodontic Sealers Affect Bond Strength to Root Dentin?

Brazilian Dental Journal ◽

10.1590/0103-6440201302246 ◽

2013 ◽

Vol 24 (4) ◽

pp. 340-343 ◽

Cited By ~ 5

Author(s):

Gabriela Campos Mesquita ◽

Crisnicaw Verissimo ◽

Luis Henrique Araujo Raposo ◽

Paulo Cesar Freitas Santos-Filho ◽

Aderito Soares da Mota ◽

...

Keyword(s):

Bond Strength ◽

Resin Cement ◽

Fiber Post ◽

Adhesive Resin ◽

Fiber Posts ◽

Relyx Unicem ◽

Cure Time ◽

Glass Fiber Post ◽

Root Dentin ◽

Endodontic Sealers

The cure time of endodontic sealers may influence the bond strength of fiber posts to root dentin. Forty teeth were selected and endodontically filled using calcium hydroxide cement and then divided into 2 groups according to the time elapsed between endodontic filling and post luting (n = 20): Immediately - glass fiber post luting immediately after endodontic filling; and Delayed - post luting performed 7 days after endodontic filling. The roots were also subdivided according to resin cement used for post luting (RelyX ARC and RelyX Unicem). The specimens were stored at 37°C for 24 h and sectioned in six 1-mm-thick slices from cervical, middle and apical thirds. The slice specimens were submitted to a push-out test at a crosshead speed of 0.5 mm/min, and the bond strength values obtained (MPa) were submitted to two-way ANOVA in a split-plot arrangement and Tukey's test (α=0.05). For both RelyX ARC and Unicem, the bond strength was significantly higher when the posts were cemented 7 days after the endodontic treatment. RelyX Unicem showed significantly higher bond strength values than RelyX ARC for both cementation periods. It was concluded that post luting should be made after the complete setting of the root canal sealer. Self-adhesive resin cement should be preferred for fiber post luting.

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Effect of Different Surface Treatments of Resin Relined Fiber Posts Cemented With Self-adhesive Resin Cement on Push-out and Microtensile Bond Strength Tests

Operative Dentistry ◽

10.2341/19-108-l ◽

2020 ◽

Vol 45 (4) ◽

pp. E185-E195

Author(s):

RV Machry ◽

PE Fontana ◽

TC Bohrer ◽

LF Valandro ◽

OB Kaizer

Keyword(s):

Bond Strength ◽

Surface Treatment ◽

Resin Composite ◽

Resin Cement ◽

Air Abrasion ◽

Microtensile Bond Strength ◽

Adhesive Resin ◽

Fiber Posts ◽

Adhesive Resin Cement ◽

Push Out

Clinical Relevance When luting relined fiber posts with self-adhesive cement, the surface treatment of the posts influences the adhesion of the fiber posts to root dentin. SUMMARY This study evaluated the effect of surface treatment and silanization of resin composite on the bond strength of relined fiber posts cemented with self-adhesive resin cement. Push-out and microtensile bond strength (MTBS) tests were performed in this study. The endodontic treatment of 80 single-rooted bovine teeth was first performed in the push- out test segment, followed by weakening the intracanal walls by diamond bur. Then, the glass fiber posts were adapted with resin composite to fill the root canals, followed by photoactivation and resin surface conditioning according to four different experimental conditions: no conditioning as control, 10% hydrofluoric acid, 35% hydrogen peroxide, or air abrasion with alumina particle (all groups were subdivided into “with silanization” or “without silanization,” thus totaling eight experimental groups). Self-adhesive resin cement was used for the post cementation. Four slices per tooth were obtained for the push-out tests. Next, 160 blocks of resin composite were first produced for the MTBS tests; their bonding surfaces were conditioned (as mentioned, ie, eight treatments), and they were cemented to each other. The 80 sets (n=10/treatment) were then cut into microbars (16/set): eight were immediately tested, while the other eight were thermocycled (12,000×) and stored (120 days) before MTBS. Failure modes and topographic analyses were performed after treatments. There was no statistically significant difference for the push-out results. In MTBS, surface treatment and silanization had a significant effect (p<0.001). Aging decreased bond strength for all groups. Considering the aged groups, air abrasion promoted the highest values and silanization improved bond strength for all treatments except air abrasion. The alumina particle air abrasion of the relining resin composite promoted the highest bond strengths when luting with self-adhesive resin cement.

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Longevity of Bonding of Self-adhesive Resin Cement to Dentin

Operative Dentistry ◽

10.2341/14-266-lr ◽

2016 ◽

Vol 41 (3) ◽

pp. E64-E72 ◽

Cited By ~ 9

Author(s):

TC Simões ◽

ÍV Luque-Martinez ◽

RR Moraes ◽

ATG Sá ◽

AD Loguercio ◽

...

Keyword(s):

Bond Strength ◽

Water Storage ◽

Resin Cement ◽

Fiber Post ◽

Adhesive Resin ◽

Root Dentin ◽

Adhesive Resin Cement ◽

Post Hoc ◽

Push Out ◽

Over Time

SUMMARY Objective: To evaluate the effect of root dentin treatment on the bonding of self-adhesive resin cement after 24 hours and after 6 months. Methods: A total of 48 single-rooted premolars were endodontically treated and divided into four groups (n=12): Adper Scotchbond Multi-Purpose + RelyX ARC (ARC); RelyX U200 (U200); EDTA + RelyX U200 (EU200); and phosphoric acid (H3PO4) + RelyX U200 (HU200). After filling the roots, an Exacto No. 2 fiber post was cleaned, treated with silane (60 seconds), positioned, and light cured (LED; 60 seconds at 1200 mW/cm2). After storage (37°C/24 h), the roots were cut to obtain two discs (1 mm) of each third. They were stored in distilled water (24 hours at 37°C); one disc of each root-third was subjected to the push-out test (0.5 mm/min) at 24 hours and the other disc after six months of water storage (37°C). The data on the root-thirds were averaged for statistical purposes. The average values of bond strength (MPa) were analyzed by two-way analysis of variance and post hoc Student-Newman-Keuls (5%). Results: There were statistical differences for the treatment of dentin (p<0.001), for time (p=0.003), and the interaction of treatment and time (p=0.017). After 24 hours, we observed lower bond strength in the HU200 group when compared with other groups (ARC, U200, and EU200). After six months, HU200 showed the lowest bond strength. Higher strengths were observed for EU200 and U200 similarly, which were higher than ARC. Conclusion: The bonding of the self-adhesive resin cement varied over time in the tested groups.

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

Operative Dentistry ◽

10.2341/10-404-l ◽

2011 ◽

Vol 36 (6) ◽

pp. 643-648 ◽

Cited By ~ 16

Author(s):

AA Leme ◽

M Coutinho ◽

AF Insaurralde ◽

PMC Scaffa ◽

LM da Silva

Keyword(s):

Bond Strength ◽

Clinical Relevance ◽

Resin Cement ◽

Cement Type ◽

Adhesive Resin ◽

Fiber Posts ◽

Etch And Rinse ◽

Root Dentin ◽

Adhesive Resin Cement ◽

Push Out

Clinical Relevance 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.

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Effect of two Resin Cements and two Fiber Post Surface Treatments on Push-out Bond Strength between Fiber Post and Root Dentin

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1627 ◽

2015 ◽

Vol 16 (1) ◽

pp. 7-12 ◽

Cited By ~ 1

Author(s):

Luiz Felipe Valandro ◽

César Dalmolin Bergoli ◽

Carolina Ceolin Druck ◽

Gabriel Kalil Rocha Pereira

Keyword(s):

Bond Strength ◽

Surface Treatment ◽

Acrylic Resin ◽

Surface Treatments ◽

Resin Cement ◽

Fiber Post ◽

Resin Cements ◽

Tukey Test ◽

Root Dentin ◽

Push Out

ABSTRACT Aim To evaluate the effect of fiber post surface treatments on push-out bond strength between fiber post and root dentin. Materials and methods Sixty bovine mandibular teeth (N = 60) were sectioned (16 mm), prepared (12 mm), embedded with acrylic resin and then allocated into six groups (n = 10): Gr1- Silane coupling agent (Sil) + Conventional resin cement AllCem (AlC); Gr2- Sil + Conventional resin cement RelyX ARC (ARC); Gr3- tribochemical silica coating (TBS) + AlC; Gr4– TBS + ARC; Gr5- No treatment (NT) + AlC; Gr6– NT+ ARC. Specimens were sectioned in four slices (2 mm) and submitted to push-out test. Fracture analyses were executed at x200. The values of the push-out bond strength were submitted to two-way ANOVA and Tukey test (á = 0.05). Results Resin cement did not affect the bond strength values (p = 0.9674), fiber post surface treatment affected the push-out bond strength (p = 0.0353), interaction between factors did not affected the values (p = 0.338). Tukey test did not show differences between the groups. Adhesive failure between cement and dentin was predominantly. Conclusion The fiber post surface treatment appears have no influence on bond strength between fiber post and root dentin. Clinical significance The tested fiber posts surface treatment appears do not influence the fiber post bond behavior. How to cite this article Druck CC, Bergoli CD, Pereira GKR, Valandro LF. Effect of two Resin Cements and two Fiber Post Surface Treatments on Push-out Bond Strength between Fiber Post and Root Dentin. J Contemp Dent Pract 2015;16(1):7-12.

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Efficacy of Fiber Post Bonding To Root Dentin after Different Obturation Techniques and Cementation Timings: In Vitro Study

Open Access Macedonian Journal of Medical Sciences ◽

10.3889/oamjms.2018.343 ◽

2018 ◽

Vol 6 (9) ◽

pp. 1707-1711

Author(s):

Rami M. Atia ◽

Nada Omar ◽

Haidy Nabil ◽

Yousra Aly

Keyword(s):

Bond Strength ◽

Statistical Significance ◽

Testing Machine ◽

In Vitro Study ◽

Resin Cement ◽

Vitro Study ◽

Endodontically Treated Teeth ◽

Root Dentin ◽

Push Out

OBJECTIVE: The aim of this in vitro study was to assess the effect of obturation technique and cementation timings on the bonding of fibre-reinforced posts to the root canal walls. METHODS: Twenty extracted teeth were randomly allocated to two groups according to the obturation technique and cementation timing. Central incisors with single canals were used after being decoronated. Every extracted tooth of the {vertical compaction group} (VC) group (n = 10) had been obturated using the {E & Q plus obturation system} with posts cemented in the same day; The other (CO) conventional group (n = 10) teeth were obturated using the conventional lateral compaction technique and posts cemented after one week. “SF“ Fiber posts were used after bonding and cementation using Rely X ARC resin cement with all the endodontically treated teeth. The push-out test was performed in a universal testing machine. Data were analysed by 2 way analysis of variance with Statistical significance was set to 0.05. RESULTS: Heat softened gutta percha group showed more push out the bond strength of the bonded posts than the conventional obturation group (p < 0.05). In the middle region, there was no statistical significance between the two groups while there was significance in the coronal and apical thirds. CONCLUSION: The vertical compaction technique and early cementation improved the bond strength of the resin posts in comparison to the conventional obturation technique with late cementation.

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Effect of Chlorhexidine and Ethanol Application on Longterm Push-out Bond Strength of Fiber Posts to Dentin

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1720 ◽

2015 ◽

Vol 16 (7) ◽

pp. 547-553 ◽

Cited By ~ 3

Author(s):

Roberta Tarkany Basting ◽

Cecília Pedroso Turssi ◽

Flavia Lucisano Botelho do Amaral ◽

Fabiana Mantovani Gomes França ◽

Rafaela Crystyan Vaneli ◽

...

Keyword(s):

Bond Strength ◽

Repeated Measures ◽

Adhesive System ◽

Resin Cement ◽

Control Group ◽

Test Analysis ◽

Significance Level ◽

Fiber Posts ◽

Etch And Rinse ◽

Push Out

ABSTRACT Aim The aim of this study was to evaluate the effect of chlorhexidine and ethanol application on the push-out bond strength and bond durability of fiber posts cemented with an etch-and-rinse adhesive system/resin cement to intraradicular dentin. Materials and methods Fifty-four bovine roots were shaped for the cementation of a fiberglass post and received the application of 37% phosphoric acid. They were then randomly divided into three groups, according to the type of dentin treatment (n = 18) performed: no treatment (control group), 100% ethanol, or 2% chlorhexidine. Next, the adhesive system (Adper Scotch Bond Multipurpose Plus, 3M ESPE) was applied to the dentin, according to the manufacturer's instructions. Glass fiber posts were cemented with dual resin cement (Rely X ARC, 3M ESPE). After 48 hours, the specimens were serially sectioned for push-out test analysis, providing two slices from each root third (cervical, medium and apical), one of which was tested immediately and the other stored in distilled water for 180 days. The data were analyzed with three-way analysis of variance (ANOVA) for repeated measures and Tukey's test at a 5% significance level. Results Intraradicular treatment with chlorhexidine yielded the highest bond strength means, followed by ethanol treatment. The control group presented the lowest bond strength means. Water storage exerted no effect on bond strength values. Conclusion Both chlorhexidine and ethanol improved push-out bond strength to intraradicular dentin, with the former providing the best results, regardless of the storage time. Clinical significance The application of 2% chlorhexidine or 100% ethanol may be an important step that can be taken to enhance bond strength of fiber posts to intraradicular dentin, when dual resin cements are used. How to cite this article França FMG, Vaneli RC, de Melo Conti C, Basting RT, do Amaral FLB, Turssi CP. Effect of Chlorhexidine and Ethanol Application on Long-term Pushout Bond Strength of Fiber Posts to Dentin. J Contemp Dent Pract 2015;16(7):547-553.

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Influence of Relining Post on the Bond Strength of Resin Cements

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1722 ◽

2015 ◽

Vol 16 (7) ◽

pp. 559-564 ◽

Cited By ~ 4

Author(s):

Matheus Coelho Bandéca ◽

Adriano Augusto Melo de Mendonça ◽

Etevaldo Matos Maia Filho ◽

Fausto da Silva Bramante ◽

Darlon Martins Lima ◽

...

Keyword(s):

Bond Strength ◽

Resin Cement ◽

The Self ◽

Fiber Post ◽

Resin Cements ◽

Adhesive Resin ◽

Fiber Posts ◽

Significant Difference ◽

Adhesive Cement ◽

Push Out

ABSTRACT This study evaluated the influence of relining fiber posts on the bond strength (BS) of resin cements in the root canal. Forty bovine teeth were divided in four groups (n = 10)G1 (ARC)—fiber post cemented with resin cement RelyX ARC; G2 (ARC+Z350)—relined fiber post cemented with RelyX ARC; G3 (U200)—fiber post cemented with self-adhesive cement RelyX U200; G4 (U200+Z350)—relined fiber post cemented with RelyX U200. The roots were sectioned in six 1.2-mm slices and the push-out test was performed. Data were analyzed by three-way analysis of variance (ANOVA), and Tukey's test (α = 0.05). For the conventional resin cement, there was no significant difference between groups G1-ARC (15.5 ± 3.8) and G2-ARC+Z350 (16.1 ± 4.5). For the self-adhesive cement, the results revealed higher BS values for relined posts G4-U200 + Z350 (19.9 ± 7.9) as compared to non-relined posts G3-U200 (14.4 ± 4.5). For both cements, in groups of relined posts, the apical and the cervical thirds presented similar BS. Relining enhances the performance of the self-adhesive resin cement, and the interaction between relining and root third influences the BS to the conventional resin cement. How to cite this article Conde DM, Rodrigues VP, de Fátima Carvalho Souza S, Bauer JRO, da Silva Bramante F, Lima SNL, Filho EMM, Bandeca MC, de Mendonça AAM, Lima DM. Influence of Relining Post on the Bond Strength of Resin Cements. J Contemp Dent Pract 2015;16(7):559-564.

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