transcrestal sinus lift: Definition, Uses, and Clinical Overview
A **transcrestal sinus lift** is a dental procedure that increases bone height beneath the maxillary sinus. It is performed through the **crest of the ridge** (the top of the jawbone where teeth used to be). It is commonly used in the **upper back jaw** to help support a dental implant when bone height is limited. It works by gently lifting the sinus lining and creating space for bone to form.