충치
Another notable oral disease pertinent to maternal child health is dental caries. Dental caries is the process of tooth decay, and the development of what is commonly known as cavities. Dental caries are transmitted from mother to child vertically; colonization of cariogenic bacteria primarily occurs from mother to child through saliva-sharing activities. Maternal oral flora can ultimately foretell oral flora in offspring. In addition, other maternal factors such as social, behavioral, and biological factors can predispose a child's experience with tooth-decay. Some of these factors include the lack of knowledge a mother possesses concerning oral health, which can influence the development of caries among her children. Compared to children whose mothers have good oral health, children whose mothers have bad oral health are five times as likely to have poor oral health. Poor maintenance of oral health has profound implications on the development of children. As mentioned in the Surgeon's General Report, oral health affects the quality of life, especially children, with respect to functional, psychological, economic, and overall emotional well-being of an individual. To demonstrate the adverse effects of poor oral health, take for example the consequences a simple cavity can have on a child. First, it is painful. This might cause a child to miss school or have poor concentration, eventually compromising school performance. In addition, due to the pain, it might result in poor weight gain or growth. Also, children may exhibit reduced self-esteem because of cosmetic issues. Furthermore, it can affect language and impair speech. Impaired speech development can also result in low self-esteem. Finally, cavities although easily preventable, can pose a financial burden of a family. Public dental services are scarce and costly to individuals who lack dental insurance. It may also result in unwarranted visits to emergency department. Poor oral health permeates into other aspects of life, posing threats to overall well-being, if not handled timely and effectively