Addition of zirconium oxide to Biodentine increases radiopacity and does not alter its physicochemical and biological properties
J. appl. oral sci
;
27: e20180429, 2019. tab, graf
Article
in English
| LILACS, BBO
| ID: biblio-990101
ABSTRACT
Abstract Objectives:
To evaluate the radiopacity of Biodentine (BD) and BD associated with 15% calcium tungstate (BDCaWO4) or zirconium oxide (BDZrO2), by using conventional and digital radiography systems, and their physicochemical and biological properties. Materials andMethods:
Radiopacity was evaluated by taking radiographs of cement specimens (n=8) using occlusal film, photostimulable phosphor plates or digital sensors. Solubility, setting time, pH, cytocompatibility and osteogenic potential were also evaluated. Data were analyzed using one-way ANOVA and Tukey post-test or two-way ANOVA and Bonferroni post-test (α=0.05).Results:
BD radiopacity was lower than 3 mm Al, while BD ZrO2 and BD CaWO4 radiopacity was higher than 3 mm Al in all radiography systems. The cements showed low solubility, except for BDCaWO4. All cements showed alkaline pH and setting time lower than 34 minutes. MTT and NR assays revealed that cements had greater or similar cytocompatibility in comparison with control. The ALP activity in all groups was similar or greater than the control. All cements induced greater production of mineralized nodules than control.Conclusions:
Addition of 15% ZrO2 or CaWO4 was sufficient to increase the radiopacity of BD to values higher than 3 mm Al. BD associated with radiopacifiers showed suitable properties of setting time, pH and solubility, except for BDCaWO4, which showed the highest solubility. All cements had cytocompatibility and potential to induce mineralization in Saos-2 cells. The results showed that adding 15% ZrO2 increases the radiopacity of BD, allowing its radiography detection without altering its physicochemical and biological properties.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Zirconium
/
Tungsten Compounds
/
Silicates
/
Calcium Compounds
/
Radiography, Dental, Digital
Type of study:
Evaluation studies
Limits:
Humans
Language:
English
Journal:
J. appl. oral sci
Journal subject:
Dentistry
Year:
2019
Type:
Article
Affiliation country:
Brazil
/
Denmark
Institution/Affiliation country:
Universidade Estadual Paulista - UNESP/BR
/
University of Aarhus/DK
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