Tehran University Of Medical Sciences

This study tests whether a special mouthwash containing N-acetylcysteine can safely prevent oral mucositis—painful mouth sores—in adults receiving a stem cell transplant. About 106 participants will use the mouthwash daily, and researchers will track how many develop sores and an…

This study looks at pain after root canal treatment in adults with a tooth condition called irreversible pulpitis. Researchers are testing three different types of sealer (a material used to fill the root canal) to see which one causes the least pain and reduces the need for pain…