If I have temporary veneers in, and my top teeth are hitting my bottom when I talk, is this a sign of a bigger problem?

Had a "trial smile" to give a general idea what cosmetic improvements could be obtained through veneers. I loved what I saw and had no difficulty speaking etc with the piece in place. I decided to go with 7 upper veneers, and one upper crown (to replace an crown) most of the work was to lengthen the crown to match other front tooth, close gaps and improve overall color, etc. Now that the temporary is in place, my upper teeth hit the bottom teeth when I talk. Normal, or needs addressing? HELP!