King Abdullah University Hospital

This study tests whether giving ketamine during laparoscopic gastric sleeve surgery can lower the chance and severity of shoulder pain after the operation. About 50 adults having the surgery will be split into two groups: one gets ketamine as part of anesthesia, the other does no…

This study tests a gel called Nano Bio Fusion (NBF) to see if it helps heal wounds on the roof of the mouth after gum graft surgery. About 36 adults will apply either the NBF gel or a placebo gel four times a day for four weeks. Researchers will measure wound size, pain, and infl…

This study tests whether a pure green tea mouthwash can reduce dental plaque and gum inflammation better than a placebo or essential oils mouthwashes like Listerine. About 44 healthy adults will rinse with their assigned mouthwash twice daily for 3 weeks, avoiding all other oral …

This study looks at whether using a tooth-whitening gel in one long session or several short sessions changes how much tooth pain people feel and how white their teeth get. About 60 adults with darker teeth will receive one of two common whitening gels. Researchers will measure p…