Can veneers correct my narrow upper teeth arch?

Braces will not grow your maxilla!  To create a truly wide maxilla and gain airway and improved physiology look into DNA Appliance, SARPE or ALF.Instand dental facelift can widen and improve smile (not breathing)  Increasing volume will support facial tissues better and create a full wide healthy looking smile.  There will be additional bult to the veneers.  I suggest starting with a no preperation bonded temporary (reversible) before committing to ceramic makeover.

Veneers alone, will not widen your arch.  They may greatly enhance your smile, by improving the shape and color of your teeth, but they will not change the dimensions of your arch.  Good luck and I hope this helps. Follow me if you have more questions.Sarah Thompson, DMDReal Self 100

Veneers can sometimes be used to make a smile look somewhat more broad but they can NOT correct a narrow dental arch. A narrow dental arch can be a major cosmetic concern; but more importantly, can also be a medical concern. An upper dental arch that is constricted can lead to TMJ Dysfunction and/or sleep apnea. Both of these conditions are serious medical issues that can cause debilitating and even life threatening diseases. It is NOT too late to develop your dental arches using simple removable appliances. Find a dentist who uses the DNA appliance. This is something you should do to not only improve your smile but also your long-term health and well being.Good luck!

It is really difficult to answer your question without a picture. Yes, veneers can be used to widen a smile. Are they the best answer for your situation? I don't know. You might repost your question with pictures.

With a smile design , you can do many changes, and you can perform different things, there are several techniques to know what would be the best option.and also the best way that those teeth will look, it can be a combined treatment with crowns, veneers, depending on each case. you will be able to change shape, size and even color.a complete smile design will get you to know the best options you have.