Veneers. Porcelain or ceramic veneers are thin coverings that can be used to cosmetically enhance the appearance of teeth. A full veneer is used to cover several teeth while partial veneers may be used for smaller gaps.
Dental Bonding (Composite bonding). Dental bonding is a cost-effective method of closing small gaps. A composite resin is built up in layers to close the gap and this is coloured to match the existing tooth colour for a natural appearance.
Dental Bridge. Ideal for replacing one tooth or several in a row, a dental bridge is built between the existing teeth and the gap filled with a natural looking false tooth.
In certain cases it may be possible to use traditional braces or Invisalign clear braces to slowly and precisely move (your) teeth into place and close any gap. Every case is different and should be discussed with the dentist to decide which option best suits your needs.
Further information can be found at https://yourdentalhealthresource.com/the-best-cosmetic-options-for-gapped-teeth/.