Whether a filling is direct or indirect depends on where the dental work is done. Direct fillings (also simply known as fillings) are made inside the mouth; the dentist excavates the cavity and fills the space with artificial material.
Three types of material are available. Silver amalgam are longer -lasting but does not blend with the tooth’s appearance. Composite resins are improved after generations, and are durable and match the tooth’s color. Glass ionomers are weaker and generally used in baby teeth. All three types offer convenience, since they can be applied in one visit.
In contrast, indirect fillings have to be made in a dental laboratory after the dentist makes a mold of the affected area. Examples include crowns, bridges, veneers, implants, inlays, and onlays. Although they are considerably more expensive than direct fillings, they are better suited to areas of moderate to severe damage involving several teeth. They are also more aesthetically pleasing. However, they do require multiple appointments.