If you have conservative white fillings then you would be a candidate for veneers. Composite veneers typically do not last as long as porcelain veneers. As the composite ages it will lack luster, appear dull, and begin to change color to brown or yellow. Composite veneers are typically less expensive than porcelain veneers and the tooth preparation is often more conservative. I recommend composite veneers for a young person seeking cosmetic dental solutions. For large white fillings, a full coverage crown may be a better treatment option.
The presence of composite fillings in anterior teeth is usually not a limitation for anterior veneers. The most important question is to find the right doctor specializing on anterior cosmetics and take a look at his finished cases.