Fig. 3 | Scientific Reports

Fig. 3

From: Impact of spacers and thermocycling on porosity and gaps in class II endodontic temporary restorations evaluated by microcomputed tomography

Fig. 3

Direct comparison of the experimental and control groups using three-dimensional imaging and modeling before and after thermocycling. The three-dimensional imaging shows the coronal plane between the spacer and restoration, as well as the large voids in the PC restoration that resemble cracks and their concentration in the mesial box. The three-dimensional modeling shows the structure of the restoration, focusing on the concentration of voids before and after thermocycling (the restoration is gray-white, and the gap and void are green). The voids appear to be concentrated on the external surface of the tooth or above the gap between the restoration and spacer. In the absence of a spacer, the voids appeared to be concentrated only on the external surface.

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