Final answer:
When a client is unable to hold his dentures firmly in his mouth, the nurse should secure them with adhesive.
Step-by-step explanation:
When a client is unable to hold his dentures firmly in his mouth, the nurse should secure them with adhesive. Using a denture adhesive can help keep the dentures in place and prevent them from moving around or falling out when the client is talking or eating. Adhesive creams or powders can provide extra grip and stability for the dentures.
Replacing the dentures may not be necessary unless they are damaged or ill-fitting. Removing them entirely would leave the client without teeth, which may affect their ability to eat and speak. Tightening the grip may not be possible if the dentures do not have an adjustable mechanism.