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Know what to expect after surgery for sleep apnea.

Cardiac catheterization is a procedure done on the heart to treat heart problems. Learn what to expect before, during, and after the procedure.

Abdominal ultrasound is an imaging test that uses sound waves to form pictures of your abdominal organs. It can help detect organ problems, such as gallstones, kidney stones, or liver disease.

The sphincter of Oddi is part of your digestive system. A sphincter is a circle of muscle. The sphincter of Oddi surrounds the end of the tubes (ducts) that connect the gallbladder, liver, and pancreas to the first part of the small intestine (duodenum). The sphincter opens to let digestive juices flow through the ducts from the gallbladder, liver, and pancreas into the small intestine. To prevent the juices from leaking back into the ducts, the sphincter squeezes shut.

A dental implant is an artificial tooth root. Your jawbone fuses with the implant to provide a secure platform for an artificial tooth (prosthesis). Abutments are connecting pieces that join the prosthesis to the implants.

Jaw (orthognathic) surgery is treatment that reshapes the jaws to improve their form and function.

Orthognathic surgery is a treatment that reshapes the jaw to improve its form and function. Before surgery, most people need to have orthodontic treatment to move and straighten the teeth.

A graft helps your body replace lost bone. Learn how a bone replacement graft works.

Your surgeon may advise removing wisdom teeth even if you have no symptoms. This is because wisdom teeth roots mature and become more firmly attached to the bone as you age, making removal more difficult.