King Abdullah University Hospital

This study aims to see if a mouthwash made from pure green tea can help control dental plaque and reduce gum inflammation (gingivitis). For three weeks, 44 healthy adults will stop their normal brushing and flossing and instead use an assigned mouthwash twice daily. Researchers w…

This study is testing if adding a low dose of the anesthetic drug ketamine during surgery can help reduce shoulder pain, a common side effect after laparoscopic gastric sleeve surgery. Researchers will compare pain levels in about 50 patients who receive ketamine as part of their…

This study is testing whether a new gel can help mouth wounds heal faster and with less pain after gum graft surgery. Researchers will compare the new gel to a placebo gel in 36 adults who have had this specific dental procedure. Participants will apply the gel four times a day f…

This study aims to find the best way to whiten teeth in a dentist's office with the least amount of pain. Researchers are testing whether doing the whitening gel in one long session or breaking it into several shorter sessions causes less tooth sensitivity. They will compare two …