Table 1 Histologic criteria evaluated.
Evaluation of pulpal reactions | |
Scores | Inflammation intensity |
0 | Absent or very few inflammatory cells |
1 | Mild (an average of < 30 inflammatory cells) |
2 | Moderate (an average of 30—60 inflammatory cells) |
3 | Severe (an average > 60 inflammatory cells) |
Scores | Inflammation severity |
0 | Absent |
1 | Mild (inflammatory cells next to hard-tissue bridge or area of pulp exposure only) |
2 | Moderate (inflammatory cells observed sparsely in one third or more of the coronal pulp) |
3 | Severe (inflammatory infiltration or necrosis of the total coronal pulp) |
Scores | Extent of inflammatory cell (mononuclear leukocytes and neutrophils) infiltration |
0 | No inflammatory cells observed |
1 | Inflammatory cell infiltration limited to coronal third of the pulp |
2 | Inflammatory cell infiltration extended to middle third of the pulp |
3 | Inflammatory cell infiltration extended to apical third of the pulp |
Scores | Dental pulp congestion |
0 | Absence of dental pulp congestion |
1 | Mild (dilated blood vessels only near dentin bridge or exposure area) |
2 | Moderate (dilated blood vessels in the coronal or middle third of the pulp) |
3 | Severe (blood cell infiltration throughout the whole coronal pulp) |
Scores | Pulpal hyperemia |
0 | Absence of extravasated erythrocytes from pulpal blood vessels |
1 | Presence of extravasated erythrocytes from pulpal blood vessels |
Scores | Pulpal tissue necrosis |
0 | Absence of denatured or autolyzed proteins within the pulpal tissue (as a hallmark of tissue vitality) |
1 | Presence of denatured or autolyzed proteins within the pulpal tissue (as a hallmark of tissue necrosis) |
Scores | Diffuse pulpal calcification |
0 | Absence of diffuse pulpal calcification |
1 | Presence of diffuse pulpal calcification |
Evaluation of hard-tissue bridge | |
Scores | Formation of calcified bridge |
0 | Patency of the exposure site without formation of a calcified barrier |
1 | Development of a calcified barrier (dentin bridge) at the exposure site |
Scores | Calcified bridge continuity |
0 | Lack of hard-tissue bridge formation |
1 | Primitive formation of hard-tissue bridge; extending to less than half of the exposure site |
2 | Partial formation of hard-tissue bridge; encompassing more than half of the exposure site but leaving the exposure site patent |
3 | Complete formation of hard-tissue bridge |
Scores | Thickness of bridge |
Measured in millimeters | Maximum thickness of the dentin bridge formed |
