A sinus lift is performed when there is not an adequate amount of bone height in the upper jaw, or your sinuses are too close to your jaw for dental implants to be placed. This procedure aims to make sure there is a secure place for the implants, whilst simultaneously protecting the sinuses.
You may be presenting with lowered sinuses if you’ve been living with missing teeth (specifically the upper molars or premolars) for some time or if you’re suffering from periodontitis (advanced gum disease).
Ultimately, the purpose of a sinus lift is to increase the amount of bone in the upper jaw by supplying the space between your molars and premolars with extra bone.