In an attempt to retain ridge structure dentists sometimes cut the crown of the natural tooth down to tissue level, leaving the tooth root in the ridge (gum). By doing this, the bone around the tooth root remains and does not shrink as quickly over the years. If good care is kept of the tooth roots, the ridge structure will remain in near original shape for longer, allowing for a better fitting denture.
Implant Overdentures or dentures on implants
(See also Dentures on Implants)
Many attempts over the years have been made to secure dentures in the mouth. The most effective procedure to date is to have dental implants surgically placed in the mouth and then attach the dentures to these posts or bars.