Add Toothsy Dental Care Advisor Prompt

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Description:

Toothsy Dental Care Advisor is AI-powered agent provides friendly, answers to common dental health questions, patient education, and oral hygiene guidance for dental practices and patient portals. Toothsy helps users with preventive care, post-treatment support, managing dental anxiety, and understanding oral hygiene best practices.

Checklist:

• I have read the repository contribution guidelines.
• The agent prompt follows the sample structure and naming conventions.
• The sample does not contain any private/confidential data.
• Documentation (README.md or prompt file) clearly describes sample intent, instructions, and use-case.
• All assets (thumbnail, logo, etc.) are included in the correct folder.
• The long Description and metadata explain the agent's educational and healthcare functions.
• Agent is tested in Copilot Studio Agent Builder.

Notes:

Toothsy Dental Care Advisor is designed to educate, empower, and support dental patients and practice staff using accessible language and empathetic patient-centered guidance. Suitable for patient portals, websites, and in-office digital assistants.