Ocena in vitro właściwości materiałowych Biodentine w porównaniu z ProRoot MTA
Both tested materials Biodentine and White ProRoot MTA were mixed according to the manufacturer’s instructions. The ring moulds were placed on a glass plate and filled to slight excess with the mixed material avoiding air entrapment. All samples were left to set in an incubator (Wärme- und Trockenschrank, Heraeus, Hanau, Germany) at 37°C and 95% relative humidity on a grating for 24 h.
Using silicon carbide paper (600 grit) excess material was then trimmed to level the surface of the mould. From each material, 72 samples were prepared for immersion in water and 72 samples for immersion in PBS buffer. In each case the 72 samples were divided into six groups of 12, for immersion in water or in PBS buffer for 1 min, 10 min, 1 h, 24 h, 72 h, and 28 d.
Both materials in their ring moulds were weighed (Sartorius type 1801 MPS, Göttingen, Germany) three times prior to the immersion of the samples. The average reading was recorded. All weight measurements were in grams and recorded to four decimal places.
The samples of each material in its ring mould were immersed in a fresh 160 mL aliquot of liquid at 37°C (± 1°C) a time for one day and subsequently in fresh 160 mL aliquots at weekly intervals. The specimens were placed in an airtight dish (7 × 10.5 × 8 cm) with 95-100% relative humidity such that [...]
którzy są subskrybentami naszego portalu.
i ciesz się dostępem do bazy merytorycznej wiedzy!
