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Cell viability and physicochemical effects of different concentrations of bismuth trioxide in a mineral trioxide aggregate cement.
Padrón-Alvarado, Karla; García-Mendoza, Laura A; Ramírez-Ortega, Juana P; Rodríguez-Chavéz, Jacqueline A; Moyaho-Bernal, María D L A; Arreguín-Cano, Juan A; Hoz-Rodríguez, Lia A; Wintergerst, Ana; Arenas-Alatorre, Jesús A; Flores-Ledesma, Abigailt.
Affiliation
  • Padrón-Alvarado K; Dental Materials and Biomaterials Research Laboratory, Postgraduate Studies and Research Division, Faculty of Dentistry, National Autonomous University of México.
  • García-Mendoza LA; Dental Materials and Biomaterials Research Laboratory, Postgraduate Studies and Research Division, Faculty of Dentistry, National Autonomous University of México.
  • Ramírez-Ortega JP; Dental Materials and Biomaterials Research Laboratory, Postgraduate Studies and Research Division, Faculty of Dentistry, National Autonomous University of México.
  • Rodríguez-Chavéz JA; Department of Integral Dental Clinics, University Center for Health Sciences, University of Guadalajara.
  • Moyaho-Bernal MDLA; Dental Materials and Biomaterials Laboratory Faculty of Stomatology, Meritorious Autonomous University of Puebla.
  • Arreguín-Cano JA; Health of the State of Guerrero.
  • Hoz-Rodríguez LA; Periodontal Biology and Mineralized Tissue Laboratory, Postgraduate Studies and Research Division, School of Dentistry, National Autonomous University of México.
  • Wintergerst A; Division of Postgraduate Studies and Research, School of Dentistry, National Autonomous University of México.
  • Arenas-Alatorre JA; Central Microscopy Laboratory, Institute of Physics, National Autonomous University of México.
  • Flores-Ledesma A; Dental Materials and Biomaterials Laboratory Faculty of Stomatology, Meritorious Autonomous University of Puebla.
J Oral Sci ; 65(1): 10-14, 2023 Jan 11.
Article in En | MEDLINE | ID: mdl-36529511
ABSTRACT

PURPOSE:

To evaluate the effect of three concentrations of bismuth trioxide (Bi2O3) on the biological and physicochemical properties of an experimental mineral trioxide aggregate-type (MTA-type) cement at different time points.

METHODS:

Three experimental groups with white Portland cement containing 15, 20, or 25 wt% of Bi2O3 were assessed. Cellular proliferation in human periodontal ligament fibroblasts was evaluated with an MTT assay. Radiopacity, dimensional stability, pH, and compressive strength were evaluated at different time points.

RESULTS:

Bismuth trioxide induced cell proliferation in the Bi15 and Bi25 groups in a time-dependent manner; pH was similar in all groups. Compressive strength was associated with time and bismuth concentration. Bi25 had significantly contracted at day 7 and expanded at day 14 (ANOVA P < 0.05, post hoc Tukey test P < 0.05).

CONCLUSION:

A higher Bi2O3 concentration had a negative effect on the physical properties of the cement at all time points.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Root Canal Filling Materials / Bismuth Limits: Humans Language: En Journal: J Oral Sci Journal subject: ODONTOLOGIA Year: 2023 Document type: Article
Fulltext
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PubMed Links
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Root Canal Filling Materials / Bismuth Limits: Humans Language: En Journal: J Oral Sci Journal subject: ODONTOLOGIA Year: 2023 Document type: Article