Universidad Rey Juan Carlos

This study looks at two types of trays used for at-home tooth whitening: soft (conventional) trays and rigid trays. About 100 adults will use a 16% whitening gel for 2 hours daily over 3 weeks. Researchers will track how white teeth get, how satisfied patients are, and any tooth …

This study tests whether a 10% carbamide peroxide gel, used at home, 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 study also checks for tooth sensitivity or gum i…

This study looks at whether an 8-week breathing muscle training program can improve lung function, diaphragm health, and heart response in healthy adult swimmers. Thirty-four swimmers will either do real breathing training or use a fake device. The goal is to see if this training…