Light transmission and bond strength of glass fiber posts submitted to different surface treatments

Vieira, C.S.; Bachmann, Luciano; Silva-Sousa, Yara Teresinha Corrêa; Silva, Sílvio Rocha Corrêa da; Alfredo, Edson

doi:10.1016/j.prosdent.2020.11.031

Cited by 8 publications

(7 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reduction in light transmission with increased depth was linear in all the tested groups. These results are consistent with those of Vieira et al [19], who observed a significant reduction in light transmission power from cervical to apical third. This reduction of light transmission with increased post length seems to follow the Lambert-Beer Law, which explains that light absorption and dispersion reduce the energy density in an exponential form with a negative exponent in resin materials [20].…”

Section: Discussionsupporting

confidence: 93%

“…The light intensity (mW/cm 2 ) was recorded to be significantly the highest in GFP post at all assessed lengths of 12, 8, and 4 mm, followed by HTZP and ceramic zirconia posts. The type, size, filler concentration, and pigment color affect the quality of light absorption, reflection, and transmission in the post [19,24]. Therefore, the difference in the light transmission values of posts evaluated in the study could be attributed to the chemical and structural differences between them.…”

Section: Discussionmentioning

confidence: 93%

See 1 more Smart Citation

Light Transmission of Various Aesthetic Posts at Different Depths and Its Effect on Push-Out Bond Strength, Microhardness of Luting Cement

Haralur

Alasmari

et al. 2022

Medicina

View full text Add to dashboard Cite

Background and Objectives: One requirement for the cemented post is the light transmittance on its entire length up to the deepest portion of a root canal to ensure the complete polymerization of resin cement. This study aimed to determine the light transmission ability in different aesthetic posts at different depths and its effect on the push-out bond strength and microhardness of luting cement at the corresponding interface. Materials and Methods: Twenty endodontic posts from glass fiber posts (GFP), zirconia ceramic posts (ZCP), and highly translucent zirconium oxide posts (HTZP) were sequentially sectioned into 12.8 and 4 mm lengths after recording the light intensity using a dental radiometer. Sixty single rooted premolar teeth root canals were treated and implanted vertically in a resin block. The post space was prepared and cemented with GFP, ZCP, and HTZP posts with twenty samples each. The root portion of teeth samples were sectioned into cervical, middle, and apical portion. A universal testing machine was utilized for the push-out bond strength test for the first ten samples from each group. The remaining ten samples from each group were used for the microhardness test using a micro-indenter instrument. The data were statistically analyzed using one-way Analysis of variance and Tukey HSD tests at p < 0.05. Results: The GFP endodontic postpresented with significant highest light translucency compared to HTZP, which was significantly higher than ZCP. GFP posts showed significantly higher bond strength per unit area compared to ZCP at analogous cross sections. The hardness of luting cement was also significantly higher amongst all tested endodontic posts. Conclusions: GFP high light translucency enhanced the curing of the luting resin cement that resulted in harder cement and a stronger bond supported by hardness and push-out tests. These findings suggest that GFP is preferred to be used with light-cured luting cements for restoration of endodontically treated teeth.

show abstract

Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 93%

Light Transmission of Various Aesthetic Posts at Different Depths and Its Effect on Push-Out Bond Strength, Microhardness of Luting Cement

Haralur

Alasmari

et al. 2022

Medicina

View full text Add to dashboard Cite

show abstract

“…The success of adhesive cementation inside the root canal, mainly at the apical level, can be compromised by several factors. The nonuniformity of dentin hybridization and resin tags more frequently in the cervical region than in the apical region, where the tubular density is lower [ 9 , 35 , 36 ], favor the cervical region regarding BS [ 8 , 19 ]. Other influencing factors include greater access to the cervical portion of the canal for cleaning, light transmission into the canal walls, and humidity control.…”

Section: Discussionmentioning

confidence: 99%

“…A differential of this study was that the application time and the materials used for the surface treatments could be carried out during clinical care. Proper surface treatment is essential for successful restoration [ 8 ]. In this study, the surface treatment before silanization to improve adhesion of GFPs to resin cement should be interpreted with caution since the treatments used in combination with silane were compared to using silane alone.…”

Section: Discussionmentioning

confidence: 99%

“…GFP restorations have more prolonged survival [ 5 ] and post adhesion to dentin and resin cement plays a vital role in restoration longevity [ 6 ]. Chemical and mechanical treatments of GFP surfaces seem to influence the BS between the post and resin materials [ 7 , 8 ]. Thus, the effective BS between a fiber-reinforced system and resin cement is crucial [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Santos

Lima

Carvalho

et al. 2021

International Journal of Dentistry

View full text Add to dashboard Cite

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.

show abstract

Evaluation of microhardness of short fiber-reinforced composites inside the root canal after different light curing methods – An in vitro study

Fráter,

Grosz,

Jakab

et al. 2024

Journal of the Mechanical Behavior of Biomedical Materials

View full text Add to dashboard Cite

Light transmission and bond strength of glass fiber posts submitted to different surface treatments

Cited by 8 publications

References 20 publications

Light Transmission of Various Aesthetic Posts at Different Depths and Its Effect on Push-Out Bond Strength, Microhardness of Luting Cement

Light Transmission of Various Aesthetic Posts at Different Depths and Its Effect on Push-Out Bond Strength, Microhardness of Luting Cement

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

Evaluation of microhardness of short fiber-reinforced composites inside the root canal after different light curing methods – An in vitro study

Contact Info

Product

Resources

About