Publication: Controlling the morphology of glyco-nanoparticles in water using block copolymer mixtures: the effect on cellular uptake
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Dag, AYDAN
Lu, Hongxu
STENZEL, Martina
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Abstract
Background/purpose: Usage of barrier materials is an important step in revascularization procedure. One of the undesired properties of these barrier materials is to cause coronal tooth discoloration. The aim of this in vitro study was to evaluate the tooth discoloration
induced by ProRoot MTA (PMTA), Biodentine, and MM-MTA, as well as the efficacy of internal
bleaching on this discoloration.
Materials and methods: Forty-two maxillary incisor teeth were prepared. Triple antibiotic
paste (TAP) was placed in the root canals and incubated for 3 weeks. After removing the
TAP, blood embedded spongostans were inserted into the root canals, and PMTA, Biodentine,
or MM-MTA was placed over them. The teeth were incubated for 4 weeks at 37 C; then, the
internal bleaching agent was sealed for one week. The tooth color was measured throughout
the study and the color change values (DE) of each specimen were calculated, and the data
was statistically analyzed using the one-way ANOVA and Tamhane’s T2 tests.
Results: The TAP significantly decreased the luminosity of the teeth (p < 0.05); however, no
significant differences were observed between the tooth discolorations induced by the PMTA,
Biodentine, and MM-MTA (p > 0.05). The teeth in the Biodentine group were more whitened
than those of the PMTA and MM-MTA groups (p < 0.05).
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Dag A., Lu H., STENZEL M., -Controlling the morphology of glyco-nanoparticles in water using block copolymer mixtures: the effect on cellular uptake-, POLYMER CHEMISTRY, cilt.6, ss.7812-7820, 2015