Dental functions, he explains, are related to the functions of many internal organs. For example, incorrect chewing can result in digestive problems, and a poor bite can lead to the distortion of facial features.
「牙齒位於頭部這個重要的部位，身體上許多器官都和它有關係」，林哲堂主任舉例，假如牙齒的咀嚼功能不好，會增加腸胃的負擔，就容易引起消化不良或消化道的疾病；牙齒咬合不正會造成顏面的不平衡；門牙脫落，對幼童的發音學習影響更大。