Effects of 1-Ethyl-3-(3-Dimethylaminopropyl) Carbodiimide on Adhesion of Posts in Teeth Obturated With Different Sealers

Abstract The aim of this study was to evaluate the effect of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) on bond strength of fiberglass posts in root canals obturated with different endodontic sealers. Seventy-eight mandibular premolars were obturated with three sealers (n=26): Endofill (END), AH Plus (AHP), and Endosequence BC Sealer (EBS). After preparation of the post space, two subgroups were formed according to the cementation of the posts (n=13): with EDC (EDC), and without EDC (control - CON). The specimens were submitted to a pull-out test, failure mode classification, and root canal surface evaluation by scanning electron microscopy after post displacement. Regarding the bond strength, a significant difference between the EDC and CON subgroups occurred only in the END (p=0.001). No difference was detected among the CON subgroups (p=0.339). However, among the EDC subgroups, AHP presented significantly higher values (END versus AHP: p=0.001; AHP versus EBS: p=0.016). Upon classification of failure modes, score 1 (≥ 50% of cement) was the most commonly observed, except for the END + EDC. Remains of endodontic sealers and resin cements were found in the cervical third, but without statistical difference (p=0.269), while in the middle third, difference occurred (p=0.004). In conclusion, EDC decreases bond strength when associated with END sealer, without changing the failure mode between the resin cement and fiberglass post. The best performance was observed when EDC was combined with AHP sealer.

Download Full-text

Effect of Surface Treatments on the Bond Strength to Turkom-Cera All-ceramic Material

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1954 ◽

2016 ◽

Vol 17 (11) ◽

pp. 920-925 ◽

Cited By ~ 1

Author(s):

Bandar MA Al-Makramani ◽

Fuad A Al-Sanabani ◽

Abdul AA Razak ◽

Mohamed I Abu-Hassan ◽

Ibrahim Z AL-Shami ◽

...

Keyword(s):

Bond Strength ◽

Ceramic Material ◽

Failure Modes ◽

Testing Machine ◽

Surface Treatments ◽

Resin Cement ◽

Control Group ◽

Significant Difference ◽

All Ceramic ◽

Effect Of Surface

ABSTRACT Aim The aim of this study was to evaluate the effect of surface treatments on shear bond strength (SBS) of Turkom-Cera (Turkom-Ceramic (M) Sdn. Bhd., Puchong, Malaysia) all-ceramic material cemented with resin cement Panavia-F (Kuraray Medical Inc., Okayama, Japan). Materials and methods Forty Turkom-Cera ceramic disks (10 mm × 3 mm) were prepared and randomly divided into four groups. The disks were wet ground to 1000-grit and subjected to four surface treatments: (1) No treatment (Control), (2) sandblasting, (3) silane application, and (4) sandblasting + silane. The four groups of 10 specimens each were bonded with Panavia-F resin cement according to manufacturer's recommendations. The SBS was determined using the universal testing machine (Instron) at 0.5 mm/min crosshead speed. Failure modes were recorded and a qualitative micromorphologic examination of different surface treatments was performed. The data were analyzed using the one-way analysis of variance (ANOVA) and Tukey honestly significant difference (HSD) tests. Results The SBS of the control, sandblasting, silane, and sandblasting + silane groups were: 10.8 ± 1.5, 16.4 ± 3.4, 16.2 ± 2.5, and 19.1 ± 2.4 MPa respectively. According to the Tukey HSD test, only the mean SBS of the control group was significantly different from the other three groups. There was no significant difference between sandblasting, silane, and sandblasting + silane groups. Conclusion In this study, the three surface treatments used improved the bond strength of resin cement to Turkom-Cera disks. Clinical significance The surface treatments used in this study appeared to be suitable methods for the cementation of glass infiltrated all-ceramic restorations. How to cite this article Razak AAA, Abu-Hassan MI, AL-Makramani BMA, AL-Sanabani FA, AL-Shami IZ, Almansour HM. Effect of Surface Treatments on the Bond Strength to Turkom-Cera All-Ceramic Material. J Contemp Dent Pract 2016;17(11):920-925.

Download Full-text

Effect of Glass Fiber Post Adaptation on Push-Out Bond Strength to Root Dentin

Brazilian Dental Journal ◽

10.1590/0103-6440201902491 ◽

2019 ◽

Vol 30 (4) ◽

pp. 350-355 ◽

Cited By ~ 1

Author(s):

Thiago Lopes de Freitas ◽

Rafael Pino Vitti ◽

Milton Edson Miranda ◽

William Cunha Brandt

Keyword(s):

Bond Strength ◽

Glass Fiber ◽

Root Canal ◽

Failure Modes ◽

Resin Cement ◽

Adhesive Failure ◽

Fiber Post ◽

Significant Difference ◽

Glass Fiber Post ◽

Push Out

Abstract The aim of this study was to evaluate the effect of different glass fiber posts (GFPs) diameters on the push-out bond strength to dentin. Forty unirradicular human teeth were endodontically treated and used for cementation of GFPs (White Post DC, FGM) with different diameters (n=10): P1 - ø 1.6 mm coronal x 0.85 mm apical; P2 - ø 1.8 mm coronal x 1.05 mm apical; P5 - ø 1.4 mm coronal x 0.65 mm apical; and PC - customized post number 0.5 with composite resin (Tetric Ceram A2, Ivoclair Vivadent). All GFPs were cemented into the root canal using a dual-curing luting composite (Variolink II, Ivoclar Vivadent). One slice (1.7 mm) of each root third of cemented GFP (cervical, middle, and apical) was submitted to push-out testing. Failure modes of all specimens were classified as: adhesive failure between resin cement and post; adhesive failure between dentin and resin cement; cohesive failure within resin cement, post or dentin; and mixed failure. The data were analyzed with two-way ANOVA and Tukey’s test (a=0.05). The highest bond strength values were presented for the P2 and PC groups. There was no statistically significant difference between the GFP thirds in each group. The groups P2, P5, and PC showed predominantly adhesive failure. For P1, the most prevalent type of failure was adhesive between resin cement and post. It may be concluded that a glass fiber post that is well adapted to the root canal presents higher bond strength values, regardless of GFP third.

Download Full-text

Push-Out Bond Strength and SEM Evaluation in Roots Filled with Two Different Techniques Using New and Conventional Sealers

Materials ◽

10.3390/ma11091620 ◽

2018 ◽

Vol 11 (9) ◽

pp. 1620 ◽

Cited By ~ 3

Author(s):

Pervin Dabaj ◽

Atakan Kalender ◽

Ayce Unverdi Eldeniz

Keyword(s):

Bond Strength ◽

Delivery System ◽

Calcium Silicate ◽

Root Canals ◽

Group 4 ◽

Significant Difference ◽

Ah Plus ◽

Bond Strengths ◽

Push Out ◽

Group 1

The aim of this study was to evaluate the influence of calcium-silicate-based sealer (Endosequence-BC-Sealer) in roots, filled with thermo-plasticized injectable technique aided by Calamus-Flow-Delivery-System, on bond strength to radicular dentin, in comparison with conventional epoxy-resin-based sealer (AH-Plus) along with cold-lateral-compaction technique. Root canals of mandibular-premolar teeth (n = 80) were instrumented using Protaper Universal rotary files and were randomly divided into four experimental groups (n = 20) as follows: (1) AH-Plus + cold-lateral-compaction technique; (2) Endosequence-BC-Sealer + cold-lateral-compaction technique; (3) AH-Plus + thermo-plasticized injectable technique; and (4) Endosequence-BC-Sealer + thermo-plasticized injectable technique. Horizontal disc shaped samples from each group (n = 60/group) were obtained and push-out bond strength testing was performed at a cross-head speed of 0.5 mm/min. Data were analyzed statistically using nonparametric Kruskal-Wallis analysis and Mann-Whitney test (p < 0.001). The statistical analysis revealed a significant difference amongst the groups (p < 0.001). The highest bond strength values were found in group 1 compared with all the other experimental groups (p < 0.001), whereas the lowest bond strength values were found in group 4 (p < 0.001). It was concluded that thermo-plasticized injectable technique with Calamus-Flow-Delivery-System lowered the bond strengths of the sealers, especially Endosequence-BC-Sealer. Therefore, this technique is not recommended to calcium-silicate-based sealers. Further studies are needed to confirm the findings of this study.

Download Full-text

Effect of Intracanal Medicaments on Pull-Out Bond Strength of Fiber Post Cemented with a Self-Adhesive System

European Journal of Dentistry ◽

10.1055/s-0039-1694313 ◽

2019 ◽

Vol 13 (03) ◽

pp. 420-425

Author(s):

Pegah Sarraf ◽

Atoosa Assadi ◽

Nazanin Kiomarsi ◽

Fatemeh Mohammadian ◽

Arsalan Assadi ◽

...

Keyword(s):

Bond Strength ◽

Adhesive System ◽

Analysis Data ◽

Control Group ◽

Fiber Post ◽

Root Canals ◽

Pull Out ◽

Fiber Posts ◽

Significant Difference ◽

Glass Fiber Posts

Abstract Objectives This study aimed to assess the effect of four intracanal medicaments on pull-out bond strength of fiber posts. Materials and Methods A total of 65 single-rooted, single-canal teeth were selected and decoronated. Root canals were prepared and after rinsing were randomly divided into five groups (n = 13). G1: calcium hydroxide (CH), G2: CH plus chlorhexidine (CH+CHX), G3: triple antibiotic paste (TAP), G4: double antibiotic paste (DAP) were applied in the canals in the four groups. The control group (G5) received no medicament. After 4 weeks, the medicaments were rinsed off and the canals were filled with gutta-percha. Post space was then prepared in root canals for the placement of glass fiber posts and self-adhesive cement (Panavia F2). After cementation, they were subjected to pull-out bond strength test. Statistical Analysis Data were statistically analyzed using one-way analysis of variance and Tukey test.Results The pull-out bond strength values were significantly different in the groups (p < 0.001). The highest values of bond strength were seen in G2, G1, and G3 (359.97 ± 81.26, 333.79 ± 98.96, 309.27 ± 78.07), respectively. There was no significant difference between G4 and G5 (p = 0.75). Conclusion The results showed that CH, CH+CHX, and TAP enhanced the pull-out bond strength of fiber post to root canal wall as compared to the control group.

Download Full-text

Bonding Polycrystalline Zirconia With 10-MDP–containing Adhesives

Operative Dentistry ◽

10.2341/16-156-l ◽

2017 ◽

Vol 42 (3) ◽

pp. 335-341 ◽

Cited By ~ 15

Author(s):

AE Llerena-Icochea ◽

RM Costa ◽

AFS Borges ◽

JFS Bombonatti ◽

AY Furuse

Keyword(s):

Bisphenol A ◽

Bond Strength ◽

Shear Bond Strength ◽

Failure Modes ◽

Tetragonal Zirconia ◽

Resin Cement ◽

Dihydrogen Phosphate ◽

Single Bond ◽

Glycol Dimethacrylate ◽

Significant Difference

SUMMARY Objective: The objective of this study was to evaluate the influence of adhesives with different 10-MDP concentrations on the shear bond strength of a resin cement to zirconia. Methods and Materials: Six experimental adhesives were prepared with the following composition: camphorquinone, 1,2-diaminobenzene, butylhydroxytoluene, diphenyliodonium hexafluorophosphate, 2-hydroxyethyl methacrylate triethylene glycol dimethacrylate, ethoxylated bisphenol A glycol dimethacrylate, urethane dimethacrylate, bisphenol A diglycidyl methacrylate, and ethanol. The 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP) monomer was added at 0wt%, 3wt%, 6wt%, 9wt%, 12wt%, or 15wt%. Three commercially available adhesives were evaluated: Single Bond Universal, Single Bond 2, and Signum Zirconia Bond. Resin cement cylinders made with RelyX Ultimate were bonded to yttria-stabilized tetragonal zirconia polycrystal with one of the evaluated adhesives and were subjected to the shear bond strength evaluation. Failure modes were analyzed with a stereoscopic loupe. Statistical analyses were performed with one-way analysis of variance and the Tukey's Honestly Significant Difference test (α=0.05). Pearson's was used to correlate the percentage of 10-MDP in the experimental adhesives and shear bond strength. Results: There were significant differences between adhesives (p<0.00001). The highest shear bond strength values were obtained with the Signum Zirconia Bond and Single Bond Universal. Single Bond 2 showed the lowest values. There were no differences between experimental adhesives. All groups showed adhesives failures. A nonlinear correlation was found between bond strength and percentage of 10-MDP in experimental adhesives (r=0.872). Conclusions: The commercially available adhesives indicated for bonding to zirconia showed the highest bonding values.

Download Full-text

Push-out Bond Strength of Glass Fiber Posts Cemented in Weakened Roots with Different Luting Agents

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1813 ◽

2016 ◽

Vol 17 (2) ◽

pp. 119-124 ◽

Cited By ~ 4

Author(s):

Lourenço Correr-Sobrinho ◽

Daniele M da Silveira-Pedrosa ◽

Luis RM Martins ◽

Mário AC Sinhoreti ◽

Manoel D Sousa-Neto ◽

...

Keyword(s):

Bond Strength ◽

Glass Fiber ◽

Failure Modes ◽

Resin Cement ◽

Root Canals ◽

Luting Agents ◽

Fiber Posts ◽

Luting Agent ◽

Glass Fiber Posts ◽

Push Out

ABSTRACT Aim To evaluate the push-out bond strength (BS) of direct anatomic posts (DAPs) and conventional fiber posts (CFPs) cemented with different luting agents in different thirds of flared root canals. Materials and methods A total of 60 human single-rooted canine teeth were transversally sectioned 16 mm from the radicular apex. After endodontic treatment, canals were flared with diamond burs. Samples were divided into six groups according to post type and luting agent: DAP and RelyX U100 (RXU); DAP and RelyX ARC (RXA); DAP and RelyX Luting 2 (RXL); CFP and RXU; CFP and RXA; CFP and RXL. Roots were sectioned transversely into six 1-mm-thick slices. The push-out test was performed and failure modes were observed. Results The DAP groups (7.23 ± 2.05) showed highest BS values (p < 0.05) when compared with CFP (5.93 ± 1.76). RelyX U100 (8.17 ± 1.70) showed higher BS values (p < 0.05) than RXA (6.46 ± 1.38), and RXL (5.10 ± 1.65) showed the lowest values. Bond strength on the apical third was statistically lower (p < 0.05) than that on the other thirds of the root canals. There was a predominance of adhesive failure for all groups. Conclusion The DAPs improved retention in flared root canals, and RXU was the most effective luting agent. The apical third showed the lowest BS values. Clinical significance The relining procedure of fiber posts with composite and the proper selection of luting resin cement are important for increasing bonding effectiveness in flared root canals. How to cite this article da Silveira-Pedrosa DM, Martins LRM, Sinhoreti MAC, Correr-Sobrinho L, Sousa-Neto MD, Costa ED Jr, de F Pedrosa-Filho C, de Carvalho JR Jr. Push-out Bond Strength of Glass Fiber Posts Cemented in Weakened Roots with Different Luting Agents. J Contemp Dent Pract 2016;17(2): 119-124.

Download Full-text

The Influence of Adhesive Luting Systems on Bond Strength and Failure Mode of an Indirect Micro Ceramic Resin-based Composite Veneer

The Journal of Contemporary Dental Practice ◽

10.5005/jcdp-10-1-33 ◽

2009 ◽

Vol 10 (1) ◽

pp. 33-40

Author(s):

Marjaneh Ghavamnasiri ◽

Nasrin Sarabi ◽

Azadeh Forooghbakhsh

Keyword(s):

Bond Strength ◽

Failure Mode ◽

Resin Cement ◽

Mode Analysis ◽

Single Bond ◽

Adhesive Failure ◽

Chi Square ◽

Adhesive Luting ◽

Significant Difference ◽

Chi Square Tests

Abstract Aim This study evaluated the bond strength and failure mode of enamel/resin-based composite veneers bonded with three different dual cured resin adhesive systems. Methods and Materials Standard preparations for laminate veneer restorations were made on 30 human central incisors using depth cutting burs (0.5 mm depth at the incisal area and 0.3 mm at the gingival area). Thirty indirect laminates were prepared using a highly filled polymeric material (GC Gradia) according to the manufacturer's instructions. After sandblasting the fitting surfaces, the specimens were randomly divided into three groups (ten per group) based on the type of resin cement luting systems; Excite/Variolink II, Single Bond/ Rely X Veneer Cement, and Clearfil New Bond/Panavia F. The specimens were stored in water at 37°C for 48 hours. Fracture testing was performed using a universal testing machine where the load was applied from the incisal direction at 135° to the long axis of the tooth (0.5 mm/min). The one-way analysis of variance (ANOVA) and Chi-Square tests were used for statistical analysis at a significance level of p>0.05. Results The ANOVA showed no significant difference was found among the groups (P>0.05). Indirect veneers showed mean enamel bond strength of 114.4 ± 48N, 159.7 ± 83.4 N, and 126.1 ± 51.7 N with Variolink II, Rely X veneer cement, and Panavia F, respectively. The Chi-Square tests showed no significant difference regarding the failure mode frequencies in different types of failure in the three groups (p>0.05). The failure mode analysis showed mainly adhesive failure in the resin cement/laminate interface in all groups. Conclusion There was no significant difference in bond strength of veneers with the three different resin cements tested. In addition, there was no significant difference in the frequency of the failure mode in each type of failure among the three test groups. The failure analysis revealed mainly an adhesive failure at the resin cement/veneer interface. Clinical Significance The results of this study suggest the use of Excite/Variolink, Single Bond/RelyX, or Clearfil New Bond/Panavia F are all appropriate choices for luting of indirect micro ceramic resin-based composite veneers in terms of bond strength and failure mode. Citation Sarabi N, Ghavamnasiri M, Forooghbakhsh A. The Influence of Adhesive Luting Systems on Bond Strength and Failure Mode of an Indirect Micro Ceramic Resin-based Composite Veneer. J Contemp Dent Pract 2009 January; (10)1:033-040.

Download Full-text

Adhesion of Epiphany and AH Plus sealers to human root dentin treated with different solutions

Brazilian Dental Journal ◽

10.1590/s0103-64402008000100008 ◽

2008 ◽

Vol 19 (1) ◽

pp. 46-50 ◽

Cited By ~ 51

Author(s):

Vinicius Humberto Nunes ◽

Ricardo Gariba Silva ◽

Edson Alfredo ◽

Manoel D. Sousa-Neto ◽

Yara T. C. Silva-Sousa

Keyword(s):

Bond Strength ◽

Root Canal ◽

Distilled Water ◽

Water Control ◽

Significant Difference ◽

Ah Plus ◽

Root Dentin ◽

Post Hoc ◽

Endodontic Sealers ◽

Push Out

This study evaluated comparatively the adhesion of Epiphany and AH Plus endodontic sealers to human root dentin treated with 1% NaOCl and 1% NaOCl+17% EDTA, using the push-out test. Sixty root cylinders obtained from maxillary canines had the canals prepared and were randomly assigned to 3 groups (n=20), according to root dentin treatment: GI - distilled water (control), GII - 1% NaOCl and GIII - 1% NaOCl+17% EDTA. Each group was divided into 2 subgroups (n=10) filled with either Epiphany or AH Plus. Bond strength push-out test data (kN) were obtained and analyzed statistically by ANOVA and Tukey's post-hoc test. There was statistically significant difference between sealers (AH Plus: 0.78 ± 0.13; Epiphany: 0.61 ± 0.19; p<0.01) and among root dentin treatments (distilled water: 0.58 ± 0.19; 1% NaOCl: 0.71 ± 0.12; 1% NaOCl+17% EDTA: 0.80 ± 0.17; p<0.05). In conclusion, AH Plus sealer presented greater adhesion to dentin than Epiphany, regardless of the treatment of root canal walls.

Download Full-text

Oval Versus Circular-Shaped Root Canals: Bond Strength Reached with Varying Post Techniques

Brazilian Dental Journal ◽

10.1590/0103-6440201801937 ◽

2018 ◽

Vol 29 (4) ◽

pp. 335-341 ◽

Cited By ~ 1

Author(s):

Mariana Benedetti Ferreira Webber ◽

Paula Bernardon ◽

Fabiana M.G. França ◽

Flávia L.B. Amaral ◽

Roberta T. Basting ◽

...

Keyword(s):

Bond Strength ◽

Cross Section ◽

Root Canal ◽

Repeated Measures ◽

Adhesive System ◽

Resin Cement ◽

Root Canals ◽

Etch And Rinse ◽

Significant Difference ◽

Glass Fiber Posts

Abstract The aim of this study was to compare the bond strength (BS) of glass fiber posts (GFP) luted to oval and circular-shaped root canals rehabilitated using varying post techniques, at different intraradicular levels. Ninety 16-mm-long roots of human mandibular premolars, classified either as having oval or circular-shaped canals, were endodontically treated and prepared for restoration using one of three different post techniques (n=15): 1) single GFP; 2) resin-relined GFP; 3) main GFP associated with accessory posts. GFPs were luted with a dual polymerizing resin cement (RelyX ARC) after the canal had been treated with a 3-step etch-and-rinse adhesive system (Adper Scothbond Multipurpose). The samples were sectioned into three 1-mm-thick sections, which were differentiated by the root level (cervical, middle and apical) and tested for push-out BS. Assessment of failure mode was made under a stereomicroscope. Data were analyzed using repeated measures three-way ANOVA and Tukey’s test. The root canal cross-section had a significant influence on BS (p<0.001), with the lowest values being observed in oval-shaped canals. The post technique also significantly affected the BS (p=0.018), with the resin-relined GFPs providing the highest BS values in both oval and circular-shaped canals. Irrespective of the cross-section of the root canal and post technique, there was no significant difference in BS in the cervical, middle and apical third of the root canal (p=0.084). In oval-shaped canals, the BS to intraradicular dentin at cervical, middle or apical level could be increased when the GFPs posts were relined.

Download Full-text

Duration of Immersion and Type of Immersion Solution Distort the Outcome of Push-Out Bond Strength Testing Protocols

Materials ◽

10.3390/ma12182860 ◽

2019 ◽

Vol 12 (18) ◽

pp. 2860

Author(s):

David Donnermeyer ◽

Lena Göbell ◽

Sebastian Bürklein ◽

Till Dammaschke ◽

Edgar Schäfer

Keyword(s):

Bond Strength ◽

Failure Modes ◽

Ethylenediaminetetraacetic Acid ◽

Root Canals ◽

Immersion Medium ◽

Immersion Period ◽

Ah Plus ◽

Phosphate Buffered Saline ◽

Testing Protocols ◽

Push Out

This study aimed to investigate the influence of immersion duration and the type of immersion solution on the outcome of push-out bond strength (POBS) tests. Root canals of 120 straight single-rooted teeth were instrumented to a diameter of 1.5 mm and irrigated with 5 mL of 3% NaOCl. Four horizontal slices with a thickness of 1 mm were cut, representing the mid-portion of the root. The specimens (n = 480) were irrigated with 17% ethylenediaminetetraacetic acid(EDTA) for 60 seconds, then twice with distilled water (DW) for 30 s each. The canals were filled with either AH Plus (Dentsply Sirona, Konstanz, Germany) or BioRoot RCS (Septodont, St. Maur-des-Fossés, France) (n = 240). Separated into four groups per type of sealer (n = 60), the specimens were incubated at 37 °C covered with gauze moistened in DW or phosphate-buffered saline (PBS) for either one or eight weeks. Dislodgement resistance was measured and POBS was calculated. Statistical analysis was performed using the analysis of variance (ANOVA) test and the Student–Newman–Keuls test (p = 0.05). AH Plus showed higher POBS when stored in PBS compared to DW, irrespective of the incubation period (p < 0.05). BioRoot RCS displayed higher POBS when stored in DW compared to PBS after eight weeks of incubation (p < 0.05). No difference was found after one week of incubation (p > 0.05). Irrespective of the sealer or the immersion solution, POBS decreased from one week to eight weeks (p < 0.05). Mixed failure modes were found in all groups irrespective of sealer, immersion medium, or immersion period. POBS decreased after a longer incubation time in both immersion solutions. Duration of immersion and the type of immersion solution had a significant impact on the outcome of the POBS testing protocol.

Download Full-text