Over time, the shape of the gums can change, affecting the fit of dentures. Reline and rebasing procedures are essential for maintaining the comfort and functionality of dentures. Relining involves adding new material to the inner surface of the denture to improve its fit as the gums shrink or change shape. Rebasing involves replacing the entire base material of the denture while keeping the existing teeth. These procedures ensure that dentures continue to fit properly, providing patients with the comfort and confidence they need in their daily lives.