Final answer:
Severe teeth grinding can cause tooth displacement and intense bruxism can lead to a loose tooth.
Step-by-step explanation:
dentist to child patient: "Your tooth is loose because you push your teeth together when you sleep."
dentist to adult patient: "Severe grinding of your teeth is causing tooth displacement."
dentist to another dentist: "The lower left bicuspid is loose due to intense bruxism."
Learn more about The causes of tooth displacement and loose teeth due to teeth grinding