Osteoradionecrosis of the mandible

This trial asks whether it is safe to skip the routine removal of impacted teeth before radiation therapy for nasopharyngeal carcinoma. Half of the participants will have the extraction as usual, while the other half will not. The study will compare the risk of jaw bone damage (o…

This study tests whether a substance made from a patient's own blood, called platelet-rich fibrin (L-PRF), can prevent a serious condition called jawbone death after tooth extraction. The trial will include 40 people at high risk due to past radiation or certain medications. Half…

This study looks at whether changes in regulatory T cells (a type of immune cell) after facial reconstruction surgery can predict how quickly patients heal and how long they stay in the hospital. Researchers will collect blood samples from about 60 adults before, during, and afte…