Final answer:
Gastric banding is the obesity surgical procedure that involves a prosthetic device to restrict food intake. It is known as lap band surgery and is less invasive than other forms of bariatric surgery like gastric bypass and sleeve gastrectomy.
Step-by-step explanation:
The surgical procedure for obesity that utilizes a prosthetic device to restrict oral intake is gastric banding. Gastric banding surgery, commonly referred to as lap band surgery, involves creating a small pouch of stomach that reduces the size of the stomach that can be used for digestion. It is different from procedures such as gastric bypass, sleeve gastrectomy, and biliopancreatic diversion with duodenal switch, which do not involve prosthetic devices but rather resect, or reroute parts of the stomach and digestive system. Gastric banding is designed to be less invasive and is adjustable, which makes it a popular choice for individuals seeking bariatric surgery as the most effective medical treatment for obesity.