IInlay-Onlay is a dental filling method suitable for large cavities or broken teeth with special dental molds. Inlay is a restoration using porcelain, metal or composite materials and then cemented in the cavity / tooth fracture. If the restoration includes one or more kuspa / protrusions of teeth then it is called Onlay. The advantage of Inlay Onlay is that it can retain the patient’s natural teeth, is stronger than ordinary fillings, is biocompatible – adaptive and rarely allergic – and is easily shaped according to the natural contours of the teeth.