Universidad Rey Juan Carlos

This study looks at whether using a soft or rigid tray for at-home tooth whitening with a 16% peroxide gel leads to better results and fewer side effects. One hundred adults with stained teeth will use either a soft or rigid tray for 2 hours daily over 3 weeks. Researchers will t…

This study tests whether a common home whitening gel (10% carbamide peroxide) can make white spot lesions on front teeth less visible. About 67 adults with these spots will use the gel and report how satisfied they are with the results. The goal is to see if whitening can improve…