Al-azhar University

This study tests whether giving ozone gas through the rectum can protect the brain and reduce damage in children who have suffered a brain injury from events like trauma, infection, or lack of oxygen. About 120 children aged 1 month to 18 years in the pediatric ICU will receive t…

This study tests two mouthwashes—one with good bacteria (probiotics) and one with a special ingredient (ethyl lauroyl arginate)—to see which better reduces cavity-causing germs, plaque, and acidity in the mouths of 66 Egyptian children aged 6-12. Participants will use the mouthwa…

This study looks at whether adding echinacea (Immulant®) to standard treatment can help children aged 5-12 with weakened immune systems who have a gut infection called cryptosporidiosis. The goal is to see if it reduces symptoms and lowers the number of parasites in their stool. …

This study tests whether using a special laser (810 nm diode) during repeat root canal treatment helps the tooth heal better. About 40 adults with a failed root canal and an infection at the root tip will receive standard cleaning plus either laser disinfection or no laser. The m…

This study will check if a treatment called therapeutic plasma exchange (TPE) helps people with immune-related nerve diseases. TPE filters the blood to remove harmful antibodies. Researchers will follow 60 Egyptian patients to see if their symptoms and daily function improve. The…

This study looks at whether using a special laser (810 nm diode) during a second root canal treatment can lower inflammation and pain. About 52 adults with a failed first root canal and a visible infection at the tooth tip will be treated. Researchers will measure pain levels and…

This study tests whether adding dexmedetomidine or tramadol to standard paracetamol can reduce bladder discomfort caused by urinary catheters after kidney stone surgery. About 60 adults aged 20–50 will be randomly assigned to one of three groups. The main goal is to see how many …

This study compares three methods to prevent pain caused by the tourniquet (a tight band that stops blood flow) during forearm surgery. About 60 adults having surgery below the elbow will be randomly assigned to receive one of two nerve blocks or a pain pump. The goal is to see w…

This study compares two methods of giving a pain-relieving injection (called a TAP block) after a planned C-section. One method uses ultrasound to guide the needle, the other is done by the surgeon during the operation. The goal is to see which approach provides better pain contr…

This study tests whether silver-hydroxyapatite nano-coated miniscrews work better than uncoated ones for pulling the upper front teeth backward as a single unit. Fourteen teens aged 14-20 with Class I malocclusion and good oral health will take part. The goal is to see if the coa…

This study tests whether applying vitamin C directly to the gums—as a gel, with tiny needles, or through injections—can safely lighten dark spots caused by natural pigmentation. Thirty adults aged 20-35 with dark gums will receive treatment and be monitored using color measuremen…