A narrow arch reduces the number of teeth that can be seen when you smile and creates very large shadows between your teeth and your cheeks. In addition, they can seem to make the teeth appear more protruding.
There is an American concept called, "widening your smile". This can be done easily and quickly with dental veneers. The planning for such a procedure is critical as too narrow a final smile defeats the point too wide a smile will make you look extremely toothy.
Ultimately, it is important that the smile the dentist achieves is one that suits you.
