
A tooth is necessary for the development of alveolar bone, and stimulation of this
bone is required to maintain its density and volume. In removable dentures, the
load is transferred only to the surface and not whole bone. As a result, blood supply
is reduced and total bone volume loss occurs.Thats why removable dentures loose
retention and need to be replaced after some time.As a result of bone
loss, chin rotates forward, there is decreased facial height, increased naso-labial
folds, loss of tone in muscles of facial expression In contrast, implant
transfers the load to entire bone, stimulates blood supply and thus maintains the
bone volume and density. Hence, better esthetics.