Veneers are long and square, what should I ask for at the time of my revision to correct them? (photos)

Not sure what you mean "revision?" Does this mean the dentist is going to do some reshaping and recontouring of these composite veneers? This is one of the challenges of composite vs. porcelain veneers. I have basically stopped doing multiple smile makeover type composite veneers which require a lot of time and expertise and skill, to have them look anywhere as good as porcelain veneers, which take less time, and if done well by an experienced, hightly trained cosmetic dentist, can hit a home run with them without "revision." While I have seen some dentists do a magnificent job with composite veneers, it takes a lot of time, and for that time, you can do porcelain much faster. Time costs and it costs too much for me to do composite veneers. From what I can see, if you do a revision on these, ask your dentist if they understand the gum incongruency, that can cause an esthetic issue. As far as length, often we wear down our front teeth and when your dentist replaces that length, it might look and feel strange, at least initially, but longer teeth can add youthfulness to you and your smile. If your lower lip touches the edges of the upper teeth when saying your fricatives, this is an appropriate length. If your lip goes over the edges, they might be too long. And either way, if you don't like the way they appear, the dentist can often make length reduction without greatly or adversely affecting the veneers and other contouring modifications as well. The incisal edges at the midline look different. I would start with trying to make them mirror images. The gum height on #10 looks lower than the other teeth and this would be another cosmetic improvement I would make to your smile. He can round the MI and DI incisal edges to "soften" the appearance of the teeth and smile. HOpe that helps. Dr. Ivan