Evaluating efficacy of different post materials and lengths on bonding strength between root canal dentin and post restorations: An experimental study

Ülgey, Melih; Zan, Recai; Görler, Oğuzhan; Yesilyurt, G; Cotur, Fatos

doi:10.4103/njcp.njcp_481_19

Cited by 5 publications

(7 citation statements)

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“…In addition, operators have increased the irrigation duration for the apical canal to minimize a poor dentin interaction; however, no evident outcomes were perceived [17,18]. Moreover, increasing preparation depth for enhancing the post retention did not influence the retention in the deeper portion and increased the likelihood of root fractures [19]. In the present study, single rooted first premolar teeth were used to manage the root lengths and number of canals.…”

Section: Discussionmentioning

confidence: 78%

Influence of Conventional Polymer, Hybrid Polymer and Zinc Phosphate Luting Agents on the Bond Strength of Customized Zirconia Post in Premolars—An In-Vitro Evaluation

et al. 2022

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The aim was to identify the influence of conventional polymeric resin based cement (RC), hybrid polymer modified glass ionomer (RMGIC) and Zinc phosphate cement (ZPC) on the pull out strength of the customized zirconia post in premolars. Access cavity and root canals were performed in sixty premolar teeth with the standardized crown down technique (ProTaper Universal, Dentsply). Post space impressions were scanned, and the pre-sintered Zenostar Zr Translucent blanks (Weiland Dental, Pforzheim) were milled with the Opera-system to form the post. All prepared specimens were divided equally in three groups based on the cement type employed for luting as follows: group A: ZPC; group B (GC Fuji PLUS Capsule): RMGIC; group C (and RC (3M RelyX ARC). Ten specimens in each group were thermocycled (TC) at 5 and 55 °C in distilled water baths (40,000 cycles). Pull out bond strength was assessed using a universal testing machine at 0.5 mm/min. The means and standard deviations were compared using ANOVA and Tukey Kramer multiple comparisons tests. A significant difference among the cement groups as well as between TC and non-thermocycled (NTC) groups (p < 0.05) was observed. The highest tensile stress was demonstrated among group C (Resin, 69.89 ± 4.81 (NTC), 64.06 ± 4.36 (TC)) with the least in group A, (zinc phosphate, 43.66 ± 5.02 (NTC), 37.70 ± 5.10 (TC)) for both groups. Group A presented with 100% adhesive bond failures, followed by 80% in group C and 70% in group B, respectively. A similar outcome was observed in the TC group for the cement; however, unlike the NTC group, the TC group showed more cohesive failures compared to the NTC mixed failure. Dual cure polymer based cement demonstrated higher bond strength and efficient adhesive bonding of the customized Zr post with root dentine compared to zinc phosphate (non-polymeric) and RMGIC (hybrid polymer). Thermocycling compromised Zr post adhesive bonding to root dentin.

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Section: Discussionmentioning

confidence: 78%

Influence of Conventional Polymer, Hybrid Polymer and Zinc Phosphate Luting Agents on the Bond Strength of Customized Zirconia Post in Premolars—An In-Vitro Evaluation

et al. 2022

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“…Various test methods such as microtensile, pull-out and push-out tests can be used to evaluate the bond strength of post restorations to root dentin [27][28][29] .The microtensile test has been highly associated with large data distributions as well as numerous premature failures during sample preparation which is complex and difficult. 30,31 In the pull-out test, regional differences have no effect on the results, as enable the evaluation of the entire root length.…”

Section: Discussionmentioning

confidence: 99%

Effect of Tribochemical Surface Treatment Technique on the Push-Out Bond Strength of Novel CAD/CAM Post Restorations

Küçükekenci

Dede

2021

Cumhuriyet Dental Journal

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Objectives: The purpose of this study was to investigate the effect of tribochemical surface treatment (TBC) on the push-out bond strength (PBS) of novel CAD/CAM post materials to root canal dentin.Materials and Methods: Fifty-two freshly extracted human maxillary central incisors were selected and endodontically treated. The teeth were randomly divided into 7 groups according to the post material used: fiber-reinforced composite post as control (FRC), zirconia (ZR), lithium disilicate (LDS), zirconia-reinforced lithium silicate (ZLS), nano-ceramic (RMC_CE), nanoparticle-filled (RMC_LU), and polymer-infiltrated-ceramic (RMC_EN).Then the posts, except FRC, were randomly assigned into two sub-groups according to the surface treatment technique used: Control (no treatment), TBC (CoJet). Following post space preparation, posts were cemented with dual-cure self-adhesive resin cement. A total of 156 sections were obtained (n=12), 3 sections on each root of the tooth. The PBS test was performed for each slice and the results were analyzed by using two-way ANOVA and Tukey HSD tests (α=0.05). The fracture modes were examined. Results: The lowest PBS values were obtained for ZR post groups that untreated (17.24±1.33 MPa) and tribochemical coated (23.09±2.16 MPa) (p<0.05). The highest PBS values were obtained for untreated RMC_CE (42.45±2.42 MPa) and RMC_LU (45.22±2.32 MPa) groups (p=0.215) and, tribochemical coated RMC_CE (43.55±2.63 MPa) and RMC_LU (45.38±2.59 MPa) groups (p=0.821). Significant differences were observed between the remaining post groups (p<0.05). Tbc has been significantly increased the PBS values of LDS, ZLS, and ZR post groups (p<0.05). Adhesive failure was the most common failure mode. (n=78). Conclusion:The results of this study proved that the PBS values of the CAD/CAM RMC post groups were higher than the FRC, ZR, LDS, and ZLS post groups, and TBC increased the PBS values of all CAD/CAM post groups.

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“…Aparte en la desinfección química se pude utilizar el método de aspersión o el de inmersión para desinfectar una impresión (22-2-3). Otros métodos utilizados son la radiación ultravioleta, microondas (15)(16)(17)(18)(19)(20)(21)(22)(23), desinfección activada por sonicador que es un homogeneizador ultrasónico para activar la solución desinfectante a 20 kHz (24).…”

Section: Métodos De Desinfecciónunclassified

“…El material más utilizado en odontología es el alginato, compuesto por el ácido algínico que es derivado de algas pardas, tiene un polímero lineal de alto peso molecular (3-8) además es un material elástico irreversible con propiedades humectantes de fácil manipulación y bajo costo (24). Con el fin de disminuir la transmisión de infecciones se ha adicionado nanopartículas que mejoran su actividad antibacteriana como los óxidos de magnesio (6).…”

Section: Materiales De Impresiónunclassified

“…Un efecto secundario de la desinfección son los cambios dimensionales de los materiales de im-presión por el contacto prolongado con el desinfectante (19)(20)(21)(22)(23)(24). La Asociación Dental Americana (ADA) recomienda lavar las impresiones con el fin de eliminar la saliva y sangre (23), también sugiere que el tiempo de exposición de la impresión al desinfectante debe ser inferior a los 30 minutos ya que de 10 a 15 minutos no hay cambios dimensionales (3-8-16).…”

Section: Tiempo De Exposición Al Desinfectanteunclassified

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Soluciones desinfectantes aplicadas a impresiones dentales antes del COVID -19 y en la actualidad.

Mercado Mamani,

Mamani Cahuata,

Chávez Yábar

et al. 2022

Salud

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En la Clínica odontológica el uso de impresiones dentales es un procedimiento común utilizado en las diferentes especialidades con el objetivo de tener un diagnóstico preciso del paciente en las diferentes áreas, así como la elaboración de elementos protésicos. Por lo cual una impresión para ser llevada al laboratorio o vaciada en yeso sigue un protocolo de desinfección el cual consiste en la aplicación de soluciones desinfectantes con el fin de reducir los microorganismos que quedan en la impresión por el contacto con la saliva o sangre, de esta forma se reduce la infección cruzada que usualmente es entre el odontólogo y el laboratorio o personal encargado del manejo de impresiones, este proceso retoma su importancia al enfrentarnos a la pandemia del COVID-19 , con esta revisión de literatura se busca conocer los métodos y los agentes de desinfección utilizados en odontología previo a la pandemia del COVID -19 y en el trascurso de esta .La OMS recomienda el uso del hipoclorito de sodio al 5% . Palabras clave: COVID-19 coronavirus, desinfección de impresiones dentales, desinfección, prótesis, hipoclorito de sodio, desinfección.

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Evaluating efficacy of different post materials and lengths on bonding strength between root canal dentin and post restorations: An experimental study

Cited by 5 publications

References 1 publication

Influence of Conventional Polymer, Hybrid Polymer and Zinc Phosphate Luting Agents on the Bond Strength of Customized Zirconia Post in Premolars—An In-Vitro Evaluation

Influence of Conventional Polymer, Hybrid Polymer and Zinc Phosphate Luting Agents on the Bond Strength of Customized Zirconia Post in Premolars—An In-Vitro Evaluation

Effect of Tribochemical Surface Treatment Technique on the Push-Out Bond Strength of Novel CAD/CAM Post Restorations

Soluciones desinfectantes aplicadas a impresiones dentales antes del COVID -19 y en la actualidad.

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