Plan a dentist visit when you're nervous

Help me prepare for a dentist visit when I'm nervous.

What's booked or needed: [check-up / treatment / unsure]
What scares me: [pain, needles, loss of control]
What has helped before: [optional]
Support person: [yes/no]

Ask me up to 3 short questions first if anything important is missing. Wait for my answers.

Then:
1. A prep plan for the 24 hours before.
2. Words to tell the dentist at the start.
3. Grounding tactics in the chair.
4. When tooth pain/swelling needs urgent dental/111 pathways rather than waiting.

Only use what I've told you, leave blanks for anything I haven't given, and don't invent diagnoses, doses, calorie targets or treatment plans. This is help with preparation, planning and wording, not medical, diet or treatment advice; check the NHS website, speak to a pharmacist, or contact NHS 111; call 999 if it feels like an emergency. UK English.

Stay in this ChatGPT chat. Do not turn on apps or connectors, and do not use memory from another chat.