Its 21st Century, Silver Filling is now outdated. We use a composite (white) filling which is used to treat a decayed tooth which is as strong as silver amalgam and no one can make out whether the tooth is treated or not. The material is introduced into the tooth and then prevents the further spread of decay or repairs any damage. The composite white filling is a synthetic combination of acrylic resin and glass which is of white colour, therefore, enabling it to match the colour of the tooth. This is also chosen for aesthetic reasons as many people prefer to have fillings which match the rest of their teeth rather than the different silver filling. Composite white fillings have a natural colour which is similar to the colour of your natural teeth and so mixes it well with them.
Composite fillings are direct, aesthetic fillings which cause minimal tooth tissue loss. Apart from its superior aesthetic features composites holds the teeth chemically unlike amalgam which requires extra healthy tooth tissue removal for maintenance of retention. Another disadvantage of amalgam is tooth fracture or impairment due to metal expansion. Composite resins are applied easily in one visit. When a decay or fracture is so extensive that a direct restoration such as amalgam or composite would risk the structural integrity of the tooth or would be inadequate against to biting forces, an on lay might be indicated. Its advantage to a crown is the minimal removal of the tooth to prepare for the impression. Indirect fillings are not only aesthetic but also the best option for restoring teeth that have suffered from extensive the decay.