34 1 USD. According to the activity of "New Oxygen Hosts the First Oral Industry Summit", as of May 5, 2023, compared with the oral consumption market in the United States, the China market still has a large space. According to statistics, the average annual health care expenditure in the United States is $8,497, and the oral medical expenditure accounts for 4.0 1%, that is, $3,465,438. The oral cavity is the initial part of the digestive tract. The anterior fissure communicates with the outside world and then continues to communicate with the pharynx through the pharyngeal isthmus.