Espertise

E spertise
™
Experimental set-up of thermographic video shoot to
compare temperature development of Imprint™ 4 VPS
Impression Material with competing VPS materials during
the setting process
Both sample preparation and video recording were done at standard room temperature.
1.) Sample preparation:
Two Position™ Trays (lower arch, size M) were filled simultaneously using two Pentamix™ 3 Automatic Mixing Units (both 3M ESPE). Impression
materials were mixed using the mixing tips recommended by the manufacturer of each material. At the start of mixing a stop- watch was started.
2.) Video recording:
The two filled impression trays were placed in front of a thermographic video camera (FLIR T640 with a 45° lens). Then, 60 seconds after the
start of mixing, the recording of a thermographic video was started and the video was saved onto a notebook computer using FLIR Tools+ software. Video files in .avi format were captured using FLIR Camera Player software.
After approximately 5 minutes’ duration, the recording was stopped. The colour-scale of the camera was set with FLIR Camera Player software
to range between 21°C/69.8°F and 37°C/98.6°F.
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