Shear bond strengths of calcium silicate‐based sealer to dentin and calcium silicate‐impregnated gutta‐percha

Banphakarn, Nonthicha; Yanpiset, Kallaya; Banomyong, Danuchit

doi:10.1111/jicd.12444

Cited by 4 publications

(5 citation statements)

References 27 publications

(71 reference statements)

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“…Some manufacturers advise its use in combination with calcium silicate-coated/impregnated GP cones (CSGP) 14 . Hence, the few studies available did not find a superior bond of the CSS to impregnated gutta-percha cones, compared to the epoxy resin-based sealer, bonded to conventional GP 15 . On the other hand, besides root canal sealer’s ability to adhere to the core material is a desirable characteristic, the methodology usually applied has been recently questioned 12 .…”

Section: Introductionmentioning

confidence: 95%

“…One of the main limitations encountered is the fact that bond strength has essentially been evaluated considering the bond between sealers and the dentin walls, namely by push-out bond strength resistance tests 12 , 16 . Besides, the findings based on heterogenous protocols, are contradictory 8 , 15 , 16 . Thus, there is limited information about the adhesion ability between the solid core, usually GP cone, and the sealer.…”

Section: Introductionmentioning

confidence: 99%

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Functionalization of gutta-percha surfaces with argon and oxygen plasma treatments to enhance adhesiveness

Ferreira

Lopes

Rodrigues

et al. 2023

Sci Rep

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Gutta-percha’s lack of adhesion has been presented as a drawback to avoid gaps at sealer/gutta-percha interface. Plasma treatments have been scarcely assessed on gutta-percha surfaces as a method of enhancing adhesiveness. This study aimed to evaluate the effect of low-pressure Argon and Oxygen plasma atmospheres on conventional and bioceramic gutta-percha standardized smooth discs, assessing their roughness, surface free energy, chemical structure, and sealer wettability. A Low-Pressure Plasma Cleaner by Diener Electronic (Zepto Model) was used. Different gases (Argon or Oxygen), powers (25 W, or 50 W), and exposure times (30 s, 60 s, 120 s, or 180 s) were tested in control and experimental groups. Kruskal–Wallis and Student's t-test were used in data analysis. Statistically significant differences were detected when P < 0.05. Both gases showed different behaviors according to the parameters selected. Even though chemical changes were detected, the basic molecular structure was maintained. Argon or Oxygen plasma treatments favoured the wetting of conventional and bioceramic gutta-perchas by Endoresin and AH Plus Bioceramic sealers (P < 0.001). Overall, the functionalization of gutta-percha surfaces with Argon or Oxygen plasma treatments can increase roughness, surface free energy and wettability, which might improve its adhesive properties when compared to non-treated gutta-percha.

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Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Functionalization of gutta-percha surfaces with argon and oxygen plasma treatments to enhance adhesiveness

Ferreira

Lopes

Rodrigues

et al. 2023

Sci Rep

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show abstract

“…Bioceramic sealers can penetrate dentinal tubules due to their ne particle type, hydrophilic structure, and high level of viscosity (18)(19)(20)(21). In addition, they have a self-adhesive structure that forms a chemical bond to dentin with hydroxyapatite formation (22). Despite favorable clinical properties, its retrieval from root canals may be challenging (23).…”

Section: Discussionmentioning

confidence: 99%

The Effect of Different Obturation Techniques with Using Different Root Canal Sealers on the Residual Filling Material After Retreatment Procedures

Sari

Yılmaz

2022

Preprint

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Objectives This study was aimed to compare effect of different obturation techniques with root canal sealers on the residual filling material after retreatment using SEM. Materials and Methods Sixty (60) single rooted mandibular premolars were selected and instrumented with rotary files using the Mtwo system up to file size 30/.05 taper. The samples were randomly divided to two groups based on the type of sealer and three sub-groups (n = 10) based on the obturating technique used. The root fillings were removed using the PTUR system files. The specimens were longitudinally sectioned and digital images were obtained from the root canals with SEM. The time required to reach working lenght were recorded. Results There was no difference in terms of the smear score when comparing both sealer and obturation technique groups in the apical third. Smear scores were significantly affected by the type of sealer and obturation technique in the medium and coronal thirds of root canals (p < 0.05). Higher smear scores were obtained with GFB than AH Plus (p < 0.05). The time required to reach working length with GFB was longer than AH Plus (p < 0.05). Conclusion Residual filling material was observed in all samples, regardless of the root canal sealer or the obturation technique used. There was significantly lower smear scores in the AH Plus groups as compared to the GFB. Clinical relevance: Despite all the potential benefits of bioceramic based root canal sealers, the complications that may occur during retreatment procedures should be considered by clinicians.

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“…Besides, gutta-percha can be applied in many fields such as the rubber industry, chemical industry [5], medical [6], and sports [7] due to its rubber-plastic dual characteristics [8,9], good anti-acid and anti-alkaline properties, tear resistance and shape memory function [10]. Meanwhile, gutta-percha is also an ideal ergonomic material, which can be used to prepare artificial blood vessels and skin, etc.…”

Section: Introductionmentioning

confidence: 99%

“…Meanwhile, gutta-percha is also an ideal ergonomic material, which can be used to prepare artificial blood vessels and skin, etc. [6,11]. However, the research and application of gutta-percha mostly rest in the laboratory stage at present, without large-scale research or industrialized application.…”

Section: Introductionmentioning

confidence: 99%

Extraction of High-Purity Native State Gutta-Percha from Enzymatic Hydrolyzed Eucommia ulmoides Pericarps by Ultrasound Treatment and Surfactant Aqueous Phase Dispersion

Shi

Zhang

et al. 2022

Agriculture

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Herein, a method of ultrasound treatment combined with surfactant aqueous phase dispersion was proposed for the extraction of high-purity gutta-percha in its native state from enzymatic hydrolyzed Eucommia ulmoides pericarps. Firstly, the plant tissues wrapped around gutta-percha were destructed through enzymatic hydrolysis, then the plant tissues debris still attached to gutta-percha were further stripped off by ultrasound. Finally, under the “amphiphilic” action of sodium dodecyl sulfate (SDS), the entangled gutta-percha was untwined, allowing the residual plant tissue debris to be released and precipitated, thus high purity gutta-percha was obtained. The process parameters were optimized through single factor and response surface experiments. The optimal parameters for ultrasonic treatment were displayed as follows: frequency of 40 kHz, power of 320 W, time of 7.3 h, temperature of 50 °C, and material-to-liquid ratio of 1:70 g/mL, and for the aqueous phase dispersion of surfactant were SDS concentration 1.7%, temperature 80 °C, stirring speed 1200 rpm, solid-to-liquid ratio 1:60 g/mL, and time 60 h. Under optimal conditions, the purity of gutta-percha reached 95.4 ± 0.31% and its weight average molecular weight (Mw) was 20.85 × 104. Moreover, the obtained gutta-percha maintained its native filamentous form. The obtained products were characterized by IR, NMR, XRD, TGA, DSC, and tensile experiments, which showed that the obtained product was gutta-percha and maintained the natural α- and β- crystal structure. The proposed method overcomes the disadvantages of the traditional organic solvent method, which has great environmental pollution and destroys the gutta-percha structure. This is also the first reported method to obtain high purity gutta-percha while maintaining its native state.

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Shear bond strengths of calcium silicate‐based sealer to dentin and calcium silicate‐impregnated gutta‐percha

Cited by 4 publications

References 27 publications

Functionalization of gutta-percha surfaces with argon and oxygen plasma treatments to enhance adhesiveness

Functionalization of gutta-percha surfaces with argon and oxygen plasma treatments to enhance adhesiveness

The Effect of Different Obturation Techniques with Using Different Root Canal Sealers on the Residual Filling Material After Retreatment Procedures

Extraction of High-Purity Native State Gutta-Percha from Enzymatic Hydrolyzed Eucommia ulmoides Pericarps by Ultrasound Treatment and Surfactant Aqueous Phase Dispersion

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