Table 4.

“Classification of reparative dentin formation” “Adapted with permission from Ref. [21] and ISO 7405:2018”.

Reparative Dentin Formation	Characterization
Grade 0	“Absence”
Grade 1	“Slight deposition of hard tissue immediately below the exposure zone”
Grade 2	“Moderate hard tissue deposition immediately below exposure zone”
Grade 3	“Intense deposition of hard tissue immediately below the exposure zone, characteristic of a complete dentin bridge”