AFTER TOOTH EXTRACTION:
Spontaneous healing
implies
alveolar
volume loss
Spontaneous healing 19
What happens with spontaneous healing?
The healing of extraction sockets and the resorption processes
that take place after tooth extraction have been investigated
thoroughly in recent years. The most recent clinical studies
have shown that:
› › the alveolar volume loss after tooth extraction is severe 1–5
› › t wo-thirds of resorption take place within the first three
months 1
1–5
Volume loss after 2 months 19
Ridge volume loss after
extraction in numbers:
Horizontal loss:
– 49 %
(after 12 months)
1
– 3.8
mm
(after 6 months)
4
Vertical loss:
from – 1.2 mm
(after 6 months)
4
to
– 1.5 mm
(after ca. 6 months)
7
Volume loss: clinical implications
Potentially important clinical implications of spontaneous
healing compared to Ridge Preservation:
› › poorer maintenance of healthy periimplant soft tissues 6
› › poorer aesthetic outcomes 6
› › 10 times greater need for hard tissue augmentation at
implant placement without previous Ridge Preservation 7
3 – Treatment Concepts for Extraction Sockets
Implant placed without Ridge Preservation 20