Figure 46. Dimensional ridge alterations in 1 week Araujo and Lindhe described the edentulous ridge profile alterations following tooth extraction in an experimental study in a dog model. During the first week of post-extraction healing, the socket area is occupied by coagulum and granulation tissue. A large number of osteoclasts are seen on the outer as well as on the inner s...

Figure 32. Day 1: Coagulum & inflammatory cells   Figure 33. Day 3: granulation tissue & inflammatory cells The soft tissue healing at the entrance of the socket also follows a specific pattern: At day 1 after extraction, the marginal portion of the coagulum is covered with a layer of inflammatory cells, mainly neutrophils. After 3 days, small segments of the coagulum a...