Everyone that is missing teeth to a varying degree should wear a denture. Complete dentures are for people who are edentulous (i.e.. Have no natural teeth remaining) and partial dentures are for those who still have some natural teeth remaining. A partial denture is important to prevent the remaining natural teeth from shifting, which will occur if the empty spaces are not filled in. Dentures improve chewing and speech, as well as provide facial support which will dramatically improve your appearance and smile.