Sodium perborate-25g

Sodium perborate, which is frequently used in bleaching of non-vital teeth, decomposed in hydrogen peroxide after contact with water, releasing nascent oxygen29. Nowadays sodium perborate has been more used due to slight tissues damage caused by these agents. It is also used for non-vital endo tooth bleaching. Further information can be taken from this link. https://pubmed.ncbi.nlm.nih.gov/32042463/