If you've chipped a tooth, you can have it fixed to look more natural than it would’ve in the past, thanks to better bonding materials and techniques.
Today's bonding material is a resin, which is shinier and longer lasting than what was used in the past. And there are more shades, so it can better blend with the tooth’s natural color.
Also, when a cavity needs to be filled, many dentists have also abandoned amalgams for "tooth-colored" composite or porcelain fillings, which look more natural.