IMPLANTOLOGY: Crestal vs Subcrestal position - Neodent

Dental implants are widely used to replace missing teeth, and their clinical success is dependent on the primary stability achieved during implant placement. The threshold of movement within the alveolar bone should be 150 µm so that it does not interfere with the healing process. 

However, in regions of poor bone quality, such as the posterior maxilla, adequate primary stability cannot be achieved at bone level, necessitating subcrestal placement. Moreover, this deeper position may also be indicated when there is limited interocclusal height for the restoration and for an esthetic emergence profile.

This video shows the expected bone loss in implants placed subcrestally (Neodent).