Effect of 830 nm Diode Laser Irradiation of Root Canal on Bond Strength of Metal and Fiber Post

2018 ◽  
Vol 36 (8) ◽  
pp. 439-444 ◽  
Author(s):  
Claudia Strefezza ◽  
Marcello Magri Amaral ◽  
José Quinto ◽  
Sheila Cynthia Gouw-Soares ◽  
Claudia Bianchi Zamataro ◽  
...  
Keyword(s):  
Bond Strength ◽  
Laser Irradiation ◽  
Diode Laser ◽  
Root Canal ◽  
Fiber Post

The effect of 808 nm diode laser irradiation on shear bond strength of composite bonded to dentin before and after bonding

2015 ◽  
Vol 9 (2) ◽  
pp. 69 ◽  
Author(s):  
Farnoosh Alizadeh ◽  
Mohammadreza Malekipour ◽  
Farzaneh Shirani ◽  
Shahram Amini
Keyword(s):  
Bond Strength ◽  
Laser Irradiation ◽  
Diode Laser ◽  
Shear Bond Strength ◽  
Before And After

Effect of photodynamic therapy and ErCrYSGG laser irradiation on the push-out bond strength between fiber post and root dentin

2019 ◽  
Vol 27 ◽  
pp. 415-418 ◽  
Author(s):  
Faisal Abdullah Alonaizan ◽  
Yasser F. AlFawaz ◽  
Abdulaziz Alsahhaf ◽  
Raneem S. Alofi ◽  
Khulud Abdulrahman Al-Aali ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Bond Strength ◽  
Laser Irradiation ◽  
Fiber Post ◽  
Root Dentin ◽  
Push Out

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

2019 ◽  
Vol 30 (4) ◽  
pp. 350-355 ◽  
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.

Factors affecting on bond strength of glass fiber post cemented with different resin cements to root canal

Laser Physics ◽  
2009 ◽  
Vol 19 (9) ◽  
pp. 1920-1924 ◽  
Author(s):  
V. R. G. Clavijo ◽  
M. C. Bandéca ◽  
L. R. Calixto ◽  
M. R. Nadalin ◽  
E. G. Saade ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Root Canal ◽  
Fiber Post ◽  
Resin Cements ◽  
Factors Affecting ◽  
Glass Fiber Post

Effect of Chlorhexidine Treatment Prior to Fiber Post Cementation on Long-Term Resin Cement Bond Strength

2018 ◽  
Vol 43 (2) ◽  
pp. E72-E80 ◽  
Author(s):  
M Durski ◽  
M Metz ◽  
G Crim ◽  
S Hass ◽  
R Mazur ◽  
...  
Keyword(s):  
Bond Strength ◽  
Root Canal ◽  
Vertical Axis ◽  
Resin Cement ◽  
Fiber Post ◽  
Resin Cements ◽  
Single Root ◽  
Number Of Cycles ◽  
Push Out

SUMMARY The purpose of this study was to evaluate the push-out bond strength of two different adhesive cements (total etch and self-adhesive) for glass fiber post (GFP) cementation in simulated, long-term service (thermocycling) when the root canal is treated with chlorhexidine before cementation. One hundred twenty premolar specimens with a single root canal were selected, endodontically treated, and shaped for GFP cementation (n=120). The specimens were randomly placed into one of 12 groups (10 specimens each) according to cement (T = total-etch RelyX ARC or S = self-adhesive RelyX Unicem), treatment with chlorhexidine (N or Y: without or with), and number of thermal cycles (00, 20, or 40: 0, or 20,000 or 40,000 cycles): 1. TN00, 2. TN20, 3. TN40, 4. TY00, 5. TY20, 6. TY40, 7. SN00, 8. SN20, 9. SN40, 10. SY00, 11. SY20, 12. SY40. The root of each specimen was cut perpendicular to the vertical axis, yielding six 1.0 mm-thick sections. A push-out bond strength test was performed followed by statistical analysis using a factorial analysis of variance. Pairwise comparisons of significant factor interactions were adjusted using the Tukey test. Significant differences of push-out bond strengths were found in the four main effects (resin cement [p<0.0001], treatment with chlorhexidine [p<0.0001], number of cycles [p<0.0001], and root third [p<0.0001]) and all interactions (p<0.05 for all). Both resin cements produced higher bond strength in the cervical third followed by the middle third, and lower values were detected in the apical third. Additionally, the results suggest that the use of an additional disinfection treatment with chlorhexidine before the cement application produced the highest push-out bond strength regardless of root third. Further, the thermocycling simulation decreased the bond strength for both resin cements long-term when the chlorhexidine was not applied before cementation. However, when the root canal was treated with chlorhexidine and the fiber post was cemented with self-adhesive cement, the bond strength increased after 0, 20,000 and 40,000 cycles.

Effect of different surface treatments on the push-out bond strength of fiber post to root canal dentin

2009 ◽  
Vol 108 (2) ◽  
pp. e74-e80 ◽  
Author(s):  
Ebru Özsezer Demiryürek ◽  
Şafak Külünk ◽  
Duygu Saraç ◽  
Gözde Yüksel ◽  
Bilinç Bulucu
Keyword(s):  
Bond Strength ◽  
Root Canal ◽  
Surface Treatments ◽  
Fiber Post ◽  
Root Canal Dentin ◽  
Push Out

Influence of laser irradiation on the push-out bond strength between a glass fiber post and root dentin

2018 ◽  
Vol 119 (1) ◽  
pp. 97-102 ◽  
Author(s):  
Karla G.F. Gomes ◽  
Natália S. Faria ◽  
Walter R. Neto ◽  
Vivian Colucci ◽  
Erica A. Gomes
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Laser Irradiation ◽  
Fiber Post ◽  
Glass Fiber Post ◽  
Root Dentin ◽  
Push Out

scholarly journals Adhesive Durability Inside the Root Canal Using Self-adhesive Resin Cements for Luting Fiber Posts

2017 ◽  
Vol 42 (6) ◽  
pp. E167-E176 ◽  
Author(s):  
K Bitter ◽  
A Maletic ◽  
K Neumann ◽  
L Breschi ◽  
G Sterzenbach ◽  
...  
Keyword(s):  
Bond Strength ◽  
Root Canal ◽  
Fiber Post ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Silver Deposits ◽  
Bond Strengths ◽  
One Year ◽  
Push Out

SUMMARY Objectives: The aim of the study was to investigate the effects of various self-adhesive resin cements on the push-out bond strengths and nanoleakage expression at the luting interfaces of fiber posts immediately and after one year of aging. Methods and Materials: One hundred forty-four extracted human anterior teeth were endodontically treated. After post space preparation, fiber posts were luted using five commercially available self-adhesive resin (SAR) cements and a core build-up material applied with a self-etch adhesive (BF: Bifix SE/Rebilda Post, VOCO; CSA: Clearfil SA Cement/Rely X Fiber Post, 3M ESPE; RX: RelyX Unicem 2/Rely X Fiber Post, 3M ESPE; SPC: Speed Cem/FRC Postec, Ivoclar Vivadent; SMC: Smart Cem/X Post, Dentsply; RB: Rebilda DC-Futurabond/Rebilda Post; n=22). For each group, half of the specimens were subjected to thermocycling (TC) (5°C-55°C, 10,000 cycles) and stored humid for one year at 37°C. Push-out bond strength data of six slices (thickness 1 mm) per root and nanoleakage expression of representative specimens were evaluated after 24 hours (baseline) and after TC and storage for one year (aging), respectively. Results: Bond strength differed significantly among resin cements (p<0.0005) and the location inside the root canal (p<0.0005), but not by aging (p=0.390; repeated-measures analysis of variance). SMC (14.6±5.8 MPa) and RX (14.1±6.8 MPa) revealed significantly higher bond strength compared to BF (10.6±5.4 MPa) and RB (10.0±4.6 MPa) but differed not significantly from SPC (12.8±4.8) MPa; CSA (6.1±4.6 MPa) revealed significantly lower bond strength compared to all other investigated materials (p<0.05; Tukey Honestly Significantly Different). Qualitative nanoleakage analysis revealed more silver deposits at the interface in all groups after aging. For CSA, a large amount of silver deposits inside the cement was also observed at baseline and after aging. Conclusions: Fiber post luting using SAR cements demonstrated reliable bond strengths. Product-specific differences and initial degradation effects could be demonstrated.

scholarly journals Effect of Nd:YAG laser in the bond strength of fiberglass posts

2015 ◽  
Vol 18 (4) ◽  
pp. 19
Author(s):  
Rayssa Ferreira Zanatta ◽  
Beatriz Maria da Fonseca ◽  
Stella Renata Steves ◽  
Carlos Rocha Gomes Torres ◽  
Sergio Eduardo Paiva Gonçalves
Keyword(s):  
Bond Strength ◽  
Laser Irradiation ◽  
Nd:Yag Laser ◽  
Root Canal ◽  
Testing Machine ◽  
Adhesive System ◽  
Bonding Performance ◽  
Fiber Posts ◽  
Bond Strengths ◽  
Push Out

<p>The aim of the present study was to compare the effects of Nd:YAG laser application in root canals on bond strengths of fiber posts. Thirty single-rooted bovines were randomly divided into three groups (n=10); root canal instrumentation was performed, and pretreatment was conducted as follows: C group: conventional treatment (without laser irradiation); ALC group: Nd:YAG laser was applied after adhesive; and LAC group: Nd:YAG laser was applied before adhesive. The fiber posts Rebilda 15 DC (Voco) were cemented with an adhesive system and resin cement, in accordance with the manufacturer’s instructions. Six slices with 1.0mm height was obtained for of each root and bond strength was measured by push-out test using a universal testing machine (0.5 mm/min). Data were analyzed using Kruskal-Wallis and Dunn’s tests (p &lt;0.05). Push-out bond strengths to root canal dentin were affected by the type of treatment and root third. The use of Nd:YAG laser after the application of adhesive system had a higher bonding performance compared with the use of laser before the application. Also, cervical and medium third presented higher bond strength values than the apical third. It must be conclude that the laser irradiation over the non-cured adhesive system is more efficient for increase in bond strength than the irradiation after the application of the adhesive. However, the use of 60mJ of laser energy is not sufficient to improve the bonding performance.</p>

scholarly journals Effect of Magnification during Post Space Preparation on Root Cleanness and Fiber Post Bond Strength

2019 ◽  
Vol 30 (5) ◽  
pp. 491-497
Author(s):  
Natércia Rezende da Silva ◽  
Monise de Paula Rodrigues ◽  
Aline Aredes Bicalho ◽  
Raissa Albuquerque de Deus ◽  
Priscilla Barbosa Ferreira Soares ◽  
...  
Keyword(s):  
Bond Strength ◽  
Root Canal ◽  
Resin Cement ◽  
Cervical Region ◽  
Micro Ct ◽  
Fiber Post ◽  
Inspection Method ◽  
Surgical Microscope ◽  
Anterior Teeth ◽  
Post Space

Abstract The aim of this study was to evaluate the effect of magnification during post space preparation on root cleanness and on fiber post bond strength. Methods: Thirty human central upper incisors with similar root canal in size and shape were selected, decoronated to 15 mm and endodontically filled. The teeth were assigned into 3 groups (n=10), according to the method of magnification during post space preparation inspection: Control, using naked eye; loupe, using a dental surgical 3x magnifying glass; surgical microscope, using a 6x surgical microscope. The roots were scanned by using micro-CT before and after post space preparation for residue remnants evaluation. Fiber posts were cemented using self-adhesive resin cement (Rely X U200, 3M-ESPE). Two 1-mm-thick slices from the cervical, medium and apical thirds were submitted to a push-out test (PBS). Failures modes were classified. PBS data were analyzed by using two-way ANOVA with repeated measurement and the Tukey test. The significance level was set at 5%. The method of visualization had no effect on PBS (p=0.556). The cervical region had higher values than apical region irrespective of the inspection method (p=0.012). Adhesive failure between the resin cement and dentin was the prevalent failure mode for all groups. Micro-CT analysis showed no difference on root cleanness into the root canal after post space preparation. The use of magnification devices as loupe and microscope while performing post space do not improve the PBS and did not affect sealer remain of decoronated anterior teeth.

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