Table 1.

The degrees of pulp inflammation induced by the materials.

Degrees of Pulp Inflammation	Score
Minimal inflammation (i.e., no or few scattered inflammatory cells are present in the pulp, similar to the normal dental pulp)	4
Mild inflammation (i.e., a little vasodilation is present, indicating mild hyperemia)	3
Moderate inflammation (i.e., weak vasodilation is present without infiltration of blood cells into the dental pulp, but some inflammatory cells—such as polymorphonuclear leukocytes and neutrophils—can be observed)	2
Severe inflammation (i.e., intense vasodilation is present, appearing as an abscess, and significant inflammatory infiltration of polymorphonuclear leukocytes and neutrophils can be seen throughout the crown)	1