An inlay is a bit similar to a dental filling and used inside the cusp tips of the tooth. When an inlay gets extended out over one or more of the cusps it is known as Onlays. They are also known as partial crowns and are employed when slightly more than a simple filling is needed but there is no warrant of a crown. It is Porcelain (tooth-colored) or metal filling that may last for 5 years or longer as opposed to composite fillings. Inlays and Onlays treatment is required when the tooth’s biting surface gets damaged or when decay is present. It makes the tooth stronger, durable, ensure no further damages, and restore the tooth shape. We can use beautiful Inlays and Onlays can be made of porcelain, gold, or composite resin depending on your own personal preference. Inlays and Onlays made of gold alloys have greater durability and better resistance against corrosion.