pH, Calcium Ion Release, and Setting Time of an Experimental Mineral Trioxide Aggregate–based Root Canal Sealer

2011 ◽  
Vol 37 (6) ◽  
pp. 844-846 ◽  
Author(s):  
Santiago Massi ◽  
Mário Tanomaru-Filho ◽  
Guilherme Ferreira Silva ◽  
Marco Antonio Hungaro Duarte ◽  
Larissa Tercilia Grizzo ◽  
...  
Keyword(s):  
Root Canal ◽  
Calcium Ion ◽  
Setting Time ◽  
Mineral Trioxide Aggregate ◽  
Root Canal Sealer ◽  
Ion Release

scholarly journals Examination of Calcium Silicate Cements with Low-Viscosity Methyl Cellulose or Hydroxypropyl Cellulose Additive

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Toshiaki Baba ◽  
Yasuhisa Tsujimoto
Keyword(s):  
Calcium Ion ◽  
Calcium Silicate ◽  
Zirconium Oxide ◽  
Setting Time ◽  
Mineral Trioxide Aggregate ◽  
Methyl Cellulose ◽  
Hydroxypropyl Cellulose ◽  
Ion Release ◽  
Low Viscosity ◽  
Calcium Silicate Cements

The purpose of this study was to improve the operability of calcium silicate cements (CSCs) such as mineral trioxide aggregate (MTA) cement. The flow, working time, and setting time of CSCs with different compositions containing low-viscosity methyl cellulose (MC) or hydroxypropyl cellulose (HPC) additive were examined according to ISO 6876-2012; calcium ion release analysis was also conducted. MTA and low-heat Portland cement (LPC) including 20% fine particle zirconium oxide (ZO group), LPC including zirconium oxide and 2 wt% low-viscosity MC (MC group), and HPC (HPC group) were tested. MC and HPC groups exhibited significantly higher flow values and setting times than other groups (p<0.05). Additionally, flow values of these groups were higher than the ISO 6876-2012 reference values; furthermore, working times were over 10 min. Calcium ion release was retarded with ZO, MC, and HPC groups compared with MTA. The concentration of calcium ions was decreased by the addition of the MC or HPC group compared with the ZO group. When low-viscosity MC or HPC was added, the composition of CSCs changed, thus fulfilling the requirements for use as root canal sealer. Calcium ion release by CSCs was affected by changing the CSC composition via the addition of MC or HPC.

Influence of powder-to-water ratio on radiopacity, setting time, pH, calcium ion release and a micro-CT volumetric solubility of white mineral trioxide aggregate

2013 ◽  
Vol 47 (2) ◽  
pp. 120-126 ◽  
Author(s):  
B. C. Cavenago ◽  
T. C. Pereira ◽  
M. A. H. Duarte ◽  
R. Ordinola-Zapata ◽  
M. A. Marciano ◽  
...  
Keyword(s):  
Calcium Ion ◽  
Setting Time ◽  
Mineral Trioxide Aggregate ◽  
Micro Ct ◽  
Ion Release ◽  
Water Ratio ◽  
White Mineral

Evaluation of pH and Calcium Ion Release of a Dual-cure Bisphenol A Ethoxylate Dimethacrylate/Mineral Trioxide Aggregate–based Root-end Filling Material

2013 ◽  
Vol 39 (12) ◽  
pp. 1603-1606 ◽  
Author(s):  
Giane da Silva Linhares ◽  
Maximiliano Sérgio Cenci ◽  
César Blaas Knabach ◽  
Camila Mizette Oliz ◽  
Mariana Antunes Vieira ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Calcium Ion ◽  
Mineral Trioxide Aggregate ◽  
Filling Material ◽  
Ion Release

The Use of a Setting Accelerator and Its Effect on pH and Calcium Ion Release of Mineral Trioxide Aggregate and White Portland Cement

2006 ◽  
Vol 32 (12) ◽  
pp. 1194-1197 ◽  
Author(s):  
E ANTUNESBORTOLUZZI ◽  
N JUAREZBROON ◽  
M ANTONIOHUNGARODUARTE ◽  
A DEOLIVEIRADEMARCHI ◽  
C MONTEIROBRAMANTE
Keyword(s):  
Portland Cement ◽  
Calcium Ion ◽  
Mineral Trioxide Aggregate ◽  
Ion Release ◽  
White Portland Cement

scholarly journals Evaluation of sealing abilitiy of mineral trioxide aggregate mixed with propylene glycol as a root canal sealer: A in vitro study

2019 ◽  
Vol 16 (4) ◽  
pp. 216
Author(s):  
AmirArdalan Abdollahi ◽  
AminSalem Milani ◽  
Solmaz Firuzi ◽  
MohammadHosein Soroush Barhaghi ◽  
Shariar Shahi
Keyword(s):  
Propylene Glycol ◽  
Root Canal ◽  
Mineral Trioxide Aggregate ◽  
In Vitro Study ◽  
Vitro Study ◽  
Root Canal Sealer

A chitosan-based irrigant improves the dislocation resistance of a mineral trioxide aggregate-resin hybrid root canal sealer

2019 ◽  
Vol 24 (1) ◽  
pp. 151-156
Author(s):  
Esin Ozlek ◽  
Priti Pragati Rath ◽  
Anil Kishen ◽  
Prasanna Neelakantan
Keyword(s):  
Root Canal ◽  
Mineral Trioxide Aggregate ◽  
Root Canal Sealer

scholarly journals Evaluation of Physicochemical Properties of New Calcium Silicate-Based Sealer

2018 ◽  
Vol 29 (6) ◽  
pp. 536-540 ◽  
Author(s):  
Aline Teixeira Mendes ◽  
Paula Barcellos da Silva ◽  
Bruna Barcelos Só ◽  
Lina Naomi Hashizume ◽  
Rodrigo Ricci Vivan ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Calcium Ion ◽  
Calcium Silicate ◽  
Calcium Release ◽  
Setting Time ◽  
Porto Alegre ◽  
Ion Release ◽  
Ph Values ◽  
Time Flow ◽  
Ah Plus

Abstract This study aimed to evaluate the physicochemical properties of a calcium silicate-based sealer (Sealer Plus BC; MK Life, Porto Alegre, Brazil) compared with an epoxy-resin sealer (AH Plus; Dentsply DeTrey GmbH, Konstanz, Germany). Initial and final setting time was assessed based on ISO 6876:2012 and ASTM C266:03. Calcium ion release and pH were evaluated by filling polyethylene tubes with sealers and then immersing them in 10 mL of deionized water. Following experimental periods of 1, 24, 72 and 168 hours, the samples were measured regarding pH and calcium ion release with a pH meter and a colorimetric spectrophotometer, respectively. The flow was examined based on ISO 6876:2012. Rings of 10 mm in diameter with 1 mm thickness were prepared to analyze the radiopacity (ISO 6876:2012 and ADA n.57) and solubility (ISO 6876:2012). The data were analyzed by variance analysis, Student-T and Tukey tests (p<0.05). The calcium ion release and pH values were significantly higher for the Sealer Plus BC compared with the AH Plus (p<0.05). Lower setting time, flow and radiopacity were observed for the bioceramic sealer than for AH Plus (p<0.05). Sealer Plus BC exhibited higher solubility compared with AH Plus (p<0.05). Sealer Plus BC showed physicochemical properties as setting time, pH, calcium release, flow, and radiopacity following the required standards, but higher solubility than the minimum values required by ISO 6876:2012.

scholarly journals A Silk Fibroin Based Hydration Accelerator for Root Canal Filling Materials

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 994
Author(s):  
Ching-Shuan Huang ◽  
Sung-Chih Hsieh ◽  
Nai-Chia Teng ◽  
Wei-Fang Lee ◽  
Poonam Negi ◽  
...  
Keyword(s):  
Cell Viability ◽  
Silk Fibroin ◽  
Root Canal ◽  
Setting Time ◽  
Testing Machine ◽  
Mineral Trioxide Aggregate ◽  
Filling Material ◽  
Root Canal Filling ◽  
Initial Setting Time

Mineral trioxide aggregate (MTA) is widely used in various dental endodontic applications such as root-end filling, furcal perforation repair, and vital pulp therapy. In spite of many attempts to improve handling properties and reduce the discoloration of MTA, the ideal root canal filling material has yet to be fully developed. The objective of this study was to investigate the setting time, mechanical properties, and biocompatibility of MTA set by a silk fibroin solution. A 5 wt% silk fibroin (SF) solution (a novel hydration accelerant) was used to set SavDen® MTA and ProRoot® white MTA (WMTA). Changes in setting time, diametral tensile strength (DTS), material crystallization, in vitro cell viability, and cell morphology were assessed by Vicat needle measurement, a universal testing machine, scanning electron microscopy (SEM), and WST-1 assay, respectively. The initial setting time of ProRoot® MTA and SavDen® MTA experienced a drastic decrease of 83.9% and 42.1% when deionized water was replaced by 5 wt% SF solution as the liquid phase. The DTS of SavDen® MTA showed a significant increase after set by the SF solution in 24 h. A human osteoblast-like cell (MG-63)-based WST-1 assay revealed that both ProRoot® MTA and SavDen® MTA hydrated using SF solution did not significantly differ (p > 0.05) in cell viability. MG-63 cells with pseudopodia attachments and nuclear protrusions represent a healthier and more adherent status on the surface of MTA when set with SF solution. The results suggest that the 5 wt% SF solution may be used as an alternative hydration accelerant for MTA in endodontic applications.

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