Toothpaste is a paste or gel entifrice used to clean and improve the aesthetic appearance and health of teeth. In some countries, due to translation issues, it is commonly referred to as "Toothcream." Toothpaste use can promote good oral hygiene: it can aid in the removal of dental plaque and food from the teeth, it can aid in the elimination and/or masking of halitosis, and it can deliver active ingredients such as fluoride or zylitol to prevent tooth and gums (Gingivitis) disease. In most or all developed countries, usage after each meal is encouraged. Most toothpaste contains chemicals which are toxic when ingested, and is not intended to be swallowed.