Hello mam As I understand your concern is a gap increasing in your front teeth. The gap does not increase by itself but it may be caused by gum problem. Veneers is a good option for you but the concern is that the gums should be taken care off first before proceeding for any other treatment. Because even if we do veneers and your gums are not healthy for it, then again the gap may increase. So please visit a dentist, get your check up done, identify the main cause of the gaps, treat it and then go for some solution. As it's a front tooth please don't take risks and chances.