Effect of Different Irrigation Solutions on the Diffusion of MTA Cement into the Root Canal Dentin

Martinho, José Pedro; França, Sara Amorim; Paulo, Siri; Paula, Anabela; Coelho, Ana; Abrantes, Ana Margarida; Caramelo, Francisco; Carrilho, Eunice; Marto, Carlos Miguel; Botelho, Maria Filomena; Girão, Henrique; Ferreira, Manuel Marques

doi:10.3390/ma13235472

Cited by 10 publications

(10 citation statements)

References 34 publications

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“…Besides to their mechanical and physical characteristics and superb sealing capability, their biocompatibility to the surrounding tissue. A new systematic review stated that the permeation of bioceramic sealer is basically more considerable than that of epoxy resin-based sealers (AH Plus, for example), even with activated irrigation techniques and chelating agents (4,5) .…”

Section: Bioceramic Sealers Have Only Been Availablementioning

confidence: 99%

The effect of nanoparticle addition to a bioceramic sealer on its intra-tubular penetration.

Thabet

Elfaramawy

Fahmy³

2022

Egyptian Dental Journal

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Introduction:The aim of this study was to evaluate the effect of titanium dioxide nanoparticles (TiO2NP) addition on Endoseal MTA intra-tubular penetration after cleaning and shaping of root canal with different irrigation protocols using the confocal laser scanning microscopy (CLSM).Methods: 56 human mandibular premolars were used. The access cavities were opened. All teeth were instrumented with a crown-down technique, using a set of ProTaper rotary instruments to achieve a size #40 apical preparation. After biomechanical preparation, teeth were divided equally into 2 groups (n=28) G1 (Endoseal MTA without TiO2NP) and G2 (Endoseal MTA with 1 wt% of TiO2NP). Each group was further subdivided equally into 2 sub-groups (n=14): sub-group N (5.25% NaOCL) and sub-group T (Green tea). Each irrigant was further subdivided equally into 2 sub-groups (n=7): sub-group CI (conventional needle irrigation) and sub-group PUI (Passive ultrasonic irrigation). Sealers were mixed with the Rhodamine B fluorescent dye for analysis of sealer penetration under the CLSM at 10x magnification and obturation was carried out in lateral condensation technique. From each root 3 (1 mm) slices were obtained representing the coronal, middle and apical thirds. Results were tabulated and statistically analyzed. Results:The results showed that NaOCl groups had a significantly higher value of sealer intratubular penetration than green tea groups in both types of sealer. PUI groups had also a significantly higher value of sealer intra-tubular penetration than CI groups in both types of sealer. The results also showed that Endoseal MTA sealer without TiO2NP had a higher value of intra-tubular penetration than Endoseal MTA sealer with TiO2NP yet the difference was not statistically significant. Conclusion:Both of NaOCl and PUI permit a significantly greater sealer intra-tubular penetration compared to green tea and CI. Endoseal MTA exhibited greater intra-tubular penetration compared to Endoseal MTA with TiO2NP.

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Section: Bioceramic Sealers Have Only Been Availablementioning

confidence: 99%

The effect of nanoparticle addition to a bioceramic sealer on its intra-tubular penetration.

Thabet

Elfaramawy

Fahmy³

2022

Egyptian Dental Journal

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“…Therefore, a proper chemo-mechanical preparation of the root canal is essential to eliminate bacteria and their byproducts, in addition to removal of the inflamed and infected tissue [ 6 , 7 ]. It is necessary to combine mechanical instrumentation with chemical irrigants to ensure the removal of smear layer to enhance the adaptability of root canal filling materials [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of different root canal irrigants on push-out bond strength of two novel root-end filling materials

2023

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Background The aim of this in vitro study was to evaluate push-out bond strength of different root-end filling materials using various irrigant solutions. Methods A push-out bond strength test was performed to evaluate the bond strength of two experimental root-end filling materials: namely, nano-hybrid mineral trioxide aggregate (MTA) and polymethyl methacrylate (PMMA) cement filled with 20% weight nano hydroxyapatite (nHA) fillers compared to conventional MTA. The irrigant solutions employed were sodium hypochlorite (NaOCl) in concentrations 1%, 2.5% and 5.25% and 2% chlorhexidine gluconate (CHX) followed by application of 17% ethylene diamine tetra-acetic acid (EDTA). A freshly extracted sixty single-rooted human maxillary central incisors were used. The crowns were removed, the canal apex was widened to simulate immature teeth. Each type of irrigation protocols was performed. After application and setting of the root-end filling materials, a slice of one mm thickness was cut transversely from the apical end of each root. Specimens were stored for 1 month in artificial saliva and were subjected to a push-out test to evaluate the shear bond strength. Data were analyzed using two-way ANOVA and Tukey test. Results The experimental nano-hybrid MTA showed the highest significant push-out bond strength values when irrigated by NaOCl at several concentrations (1%, 2.5% and 5.25%) (P< 0.05). Meanwhile, irrigation with 2% CHX resulted in highest bond strength values in nano-hybrid white MTA (18 MPa) and PMMA filled with 20% weight nHA (17.4 MPa) with nonsignificant difference between them (p = 0.25). In each root-end filling material, irrigation with 2% CHX led to the highest significant bond strength, followed by NaOCl 1%, while the least significant bond strength was produced after irrigation with NaOCl 2.5% and 5.25% (P< 0.05). Conclusion Considering the limitations of this study, it may be concluded that the application of 2% CXH and 17% EDTA provides superior push-out bond strength to root canal dentin compared with irrigation with NaOCl irrigants and 17% EDTA, experimental nano-hybrid MTA root-end filling material provides enhanced shear bond strength than conventional micron-sized MTA root-end filling material.

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“…Gutta-percha is the most frequently used core material, but this material does not adhere to the dentinal walls of the canal [ 1 , 8 , 10 ]. So, diverse materials are available for this purpose, such as zinc oxide and eugenol-based, calcium hydroxide-based, glass ionomer-based, resin epoxy-based, silicone-based, and more recently bioceramic-based sealers [ 6 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Sealing Ability and Bond Strength of Two Endodontic Root Canal Sealers: An In Vitro Study

et al. 2022

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Background: Obturation represents a critical step in endodontic treatment, which relies on a core material and a sealer. This study aims to evaluate the sealing ability and bond strength to the root canal walls of an epoxy resin-based sealer (AH-Plus®, Dentsply Sirona, Johnson City, TN, USA) and a bioceramic sealer (GuttaFlow Bioseal®, Coltène/Whaledent, GmbH + Co. KG, Langenau, Germany). Methods: Thirty-eight maxillary anterior teeth with single roots and identical round sections were separated into two experimental groups according to the root canal sealers used, namely, G1 = AH-Plus® and G2 = GuttaFlow Bioseal®, and two control groups, specifically, G3 = the negative control and G4 = the positive control. The sealing capacity was measured by the penetration of the radioactive isotope 99mTc. For the push-out test, the compressive force test was performed in a universal machine and the force was applied by exerting pressure on the surface of the material to be tested in the apical to the coronal direction and using three test points with different diameters. Results: GuttaFlow Bioseal® exhibited superior sealing ability compared to AH-Plus® (p = 0.003). Regarding the bond strength, AH-Plus® provided higher adhesion values than GuttaFlow Bioseal® in the three sections of the tooth root (p = 0.001). Conclusions: GuttaFlow Bioseal® had significantly better sealing ability than AH-Plus® but lower adhesion values in the three zones of the root canal, with statistically significant differences between the groups. However, it is important to note that for the action of endodontic sealers to be maximized, the root-filling technique must be most appropriate.

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Effect of Different Irrigation Solutions on the Diffusion of MTA Cement into the Root Canal Dentin

Cited by 10 publications

References 34 publications

The effect of nanoparticle addition to a bioceramic sealer on its intra-tubular penetration.

The effect of nanoparticle addition to a bioceramic sealer on its intra-tubular penetration.

Effect of different root canal irrigants on push-out bond strength of two novel root-end filling materials

Evaluation of the Sealing Ability and Bond Strength of Two Endodontic Root Canal Sealers: An In Vitro Study

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