Physical properties and biological effects of mineral trioxide aggregate mixed with methylcellulose and calcium chloride.
J Appl Oral Sci
; 25(6): 680-688, 2017.
Article
em En
| MEDLINE
| ID: mdl-29211290
OBJECTIVES: Methylcellulose (MC) is a chemical compound derived from cellulose. MTA mixed with MC reduces setting time and increases plasticity. This study assessed the influence of MC as an anti-washout ingredient and CaCl2 as a setting time accelerator on the physical and biological properties of MTA. MATERIAL AND METHODS: Test materials were divided into 3 groups; Group 1(control): distilled water; Group 2: 1% MC/CaCl2; Group 3: 2% MC/CaCl2. Compressive strength, pH, flowability and cell viability were tested. The gene expression of bone sialoprotein (BSP) was detected by RT-PCR and real- time PCR. The expression of alkaline phosphatase (ALP) and mineralization behavior were evaluated using an ALP staining and an alizarin red staining. RESULTS: Compressive strength, pH, and cell viability of MTA mixed with MC/CaCl2 were not significantly different compared to the control group. The flowability of MTA with MC/CaCI2 has decreased significantly when compared to the control (p<.05). The mRNA level of BSP has increased significantly in MTA with MC/CaCl2 compared to the control (p<.05). This study revealed higher expression of ALP and mineralization in cells exposed to MTA mixed with water and MTA mixed with MC/CaCl2 compared to the control (p<.05). CONCLUSIONS: MC decreased the flowability of MTA and did not interrupt the physical and biological effect of MTA. It suggests that these cements may be useful as a root-end filling material.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Óxidos
/
Materiais Restauradores do Canal Radicular
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Cloreto de Cálcio
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Silicatos
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Compostos de Cálcio
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Compostos de Alumínio
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Metilcelulose
Limite:
Animals
Idioma:
En
Revista:
J Appl Oral Sci
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2017
Tipo de documento:
Article
País de publicação:
Brasil