Tehran University Of Medical Sciences

This study is testing whether a mouthwash containing N-acetylcysteine (NAC) can safely prevent painful mouth sores (mucositis) in adults undergoing stem cell transplants. About 106 patients will be randomly assigned to use either the NAC mouthwash or a placebo mouthwash, and neit…

This study compares pain levels after root canal treatment in adults with severe tooth nerve inflammation. Researchers are testing three different root canal sealers to see which causes less pain and requires fewer pain medications after treatment. Participants receive standard r…