Final answer:
To ensure a gold inlay stays well seated in the cavity until the cement fully sets, steady pressure must be maintained on the inlay, either manually or with the patient's bite, and the cavity must be properly prepared to receive the inlay.
Step-by-step explanation:
During the cementation of a gold inlay, the best way to assure that it stays well seated in the cavity until the final setting of the cement is to maintain a steady pressure on the inlay. After positioning the inlay with the appropriate dental cement, it is crucial to apply a constant, even force to ensure that the inlay remains in the correct position as the cement sets. This can be achieved through the use of a special dental tool designed to hold inlays, or by having the patient bite down on a bite registration material which can help distribute the pressure evenly while the cement cures.
Furthermore, it is important to prepare the cavity properly before placing the inlay, which involves cleaning out the cavity and ensuring there are no undercuts that could prevent the inlay from seating correctly. The dental professional must also carefully mix and apply the dental cement following the manufacturer's instructions to achieve the best results. Once seated, the inlay should not be disturbed until the cement has fully hardened to avoid any movement that could compromise the final fit and functionality of the gold inlay.