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1000107498-1000237871

FIGURE 1 Histological section of root-end filling case-courtesy of Baylor University. -- The blackish area is the root canal filling material. Below that is the MTA. All the way around is the periodontal ligament. The alveolar bone is visible at the bottom of the picture. Original dentin surrounds the filling materials. The darker area, which appears to be denser and more reddish, is the cemental formation. This illustrates the tissue biocompatible and non-toxic properties of MTA.