A Dental filling involves the use of dental restorative material to protect the integrity and function of a tooth. The best and time-tested fillings are of many types, including Zinc Oxide-eugenol, Amalgam/Metal, Cement, Glass Ionomer Cement (GIC), and Composite Fillings and Bondings. Dental restorations can be for protecting the tooth, usually on the posterior end, and for improving aesthetics when gaps between the teeth are closed with composite filling in a procedure called Composite Diastema closure.