The yellowing of the dental crown can arise from many different things. Porcelain crowns are highly durable and stain-resistant. Stains do not penetrate the surface of porcelain unless the crown is damaged. If the crown is damaged, the tooth beneath may become infected or discoloured due to anything leaked into and trapped beneath the crown. This is likely the case if a crown's yellowed or stained appearance is not solved by brushing.
Sometimes the teeth surrounding a crown are whitened, the crown matching your teeth’s natural colour may simply appear darker, yellower or more off-white than the surrounding teeth. Smile Centre India haves the tools needed to safely clean both natural teeth and crowns, restoring their pearly shine.