1. Asymptomatic primary molars with deep carious lesions scheduled for regular treatment.
2. Exposure of a vital pulp due to caries.
3. No clinical or radiographic evidence of pulp degeneration, such as spontaneous pain, excessive bleeding from the root canal, internal root resorption, inter-radicular and/or periapical bone destruction, swelling, or sinus tract.
4. The possibility of proper restoration of the teeth.

1. Asymptomatic primary molars with deep carious lesions scheduled for regular treatment.
2. Exposure of a vital pulp due to caries.
3. No clinical or radiographic evidence of pulp degeneration, such as spontaneous pain, excessive bleeding from the root canal, internal root resorption, inter-radicular and/or periapical bone destruction, swelling, or sinus tract.
4. The possibility of proper restoration of the teeth.

Following removal of the coronal pulp with a round bur and hemostasis, the pulp stumps in the study group will be covered with Neo-Putty ® according to the manufacturer's instructions. Neo-Putty will be placed in the prepared cavity, and then covered with Vitrebond® and with a reinforced Zinc Oxide-Eugenol (IRM, Bayer-Leverkussen, Germany).

In the control group, a cotton pellet moistened with full-strength FC will be placed for 5 minutes on the amputated pulp, after reaching hemostasis. The pulp stumps will be then covered by IRM