Oral conditions are frequently considered separate from other chronic conditions, but these are actually inter-related. Poor oral health is associated with other chronic diseases such as diabetes and heart disease. Oral disease also is associated with risk behaviors such as using tobacco and consuming sugary foods and beverages. Public health strategies such as community water fluoridation and school sealant programs are safe and effective interventions proven to prevent cavities and save money.The type of deviation varies, but any type of misalignment can cause issues. Alignment of upper teeth is needed to prevent the cheeks and lips from being bitten, while alignment of lower teeth is needed to protect the tongue from being bitten.