Sana'a University

This study tests two different tools—a sliding jig and retraction hooks—both anchored by small screws in the cheekbone, to see which moves the upper teeth backward more effectively in adults with Class II malocclusion (overbite). About 40 people will join, and researchers will me…

This study tests a new, less invasive dental implant method that lifts the sinus membrane without using bone grafts. It is for adults with missing upper back teeth and limited bone height (4-6 mm). The goal is to see if this approach safely creates new bone and keeps the implant …

This study tests whether a substance made from a patient's own blood (platelet-rich fibrin) can improve bone healing after removing a cyst from the jaw. Twenty adults will be randomly assigned to receive either the blood concentrate or standard care. The main goal is to see if th…

This study looks at two different orthodontic techniques to move a displaced upper canine tooth into its correct position. Researchers will use 3D scans to measure changes in the bone and tooth roots before and after treatment. The goal is to see which method causes less damage t…