How common is gingival recession after veneer placement? (photo)

Had 8 Emax veneers placed 10 months ago by a referred AACD cosmetic dentist. Since having them placed, noticeably on 2 teeth, I've noticed the tooth neck where the gums have retracted some. Though not terribly bothersome, I'm just concerned that further recession doesn't occur so prematurely. I realize that they will need to be replaced eventually but the aesthetic component bothers me. My dentist went sub gingival with his margin and was rather conservative with placement. Any advice? Recommendations?