How to change the way my smile looks? (photos)

This is a difficult question to answer without photos.  I would say that many times the arch can be widened with porcelain veneers giving a significant improvement.  Only after seeing these photos would I be able to comment with certainty on your specific case.  Good luck.  

Hi from Lakeview, Texas!  You left me a description that you were skinny with chubby cheeks but have no pictures of your face and smile!  You would like your smile to look wider and you can do this with either bonding which allows you to keep your natural teeth and make them larger and change their shaped to look more aesthetically pleasing. You really want to try and make your smile look wide and natural maintaining your own tooth structure while broadening your smile.  You can also go in another direction and get that perfect "Hollywood Smile"  with all porcelain veneers. This is the choice of most of your celebrities. Remember once you have veneers, you can not go back. There is tooth reduction and once you have veneers you always will have veneers. It is your choice and choose wisely!

Often when you have a wide face with "fat cheeks" and broad smile with a narrow dental arch there is an aesthetic problem with your smile known as a large buccal corridor. This is when there is a dark space on the side of your teeth when you smile making your teeth look out of proportion to your face. There are a number of ways an experienced cosmetic dentist can address this problem with a proper evaluation. These include:Orthodontic treatment including Invisalign clear aligner therapy.Porcelain Laminate Veneers especially to build out the bucuspid teeth which line the buccal corridor and will make your smile wider.Cosmetic composite bonding on the buccal (facial) surface of the bicuspids to widen these teeth.Incidentally, many celebrities such as the photos you included do have Porcelain Laminate Veneers as the treatment option for.a perfect "Hollywood Smile." The most important thing is a thorough evaluation which may include a number of the above options for an ideal result.