A. Obviously you need a proper examination first of all.  To improve your smile the usual options you have are whitening, othodontics ( often clear braces are possible) , veneers , crowns, bridges and implants( if you have teeth missing.  As far as whether to have veneers or crowns a lot depends on how much healthy tooth you have left.  As a general rule it si best to conserve as much healthy tooth as possible – veneers require far less tooth shaping than crowns.  From a payment point of view many dentists have finance packages in place to allow you to spread the cost of treatment .