Smiling Mouth Illustration - Dental Health & Expression Art #291664 (License: Personal Use)

This black-and-white line drawing depicts a wide-open smile with clearly defined upper and lower incisors, canines, and premolars, along with shaded gum tissue for depth. The expressive lips are slightly parted, conveying positivity and openness, rendered in a clean, illustrative style suitable for educational or artistic contexts. The sketch avoids realism in favor of clarity and symbolic representation.

Commonly used in dental hygiene brochures, psychology articles on facial expressions, animation reference sheets, or UX design for emotion icons. Matches user intent for visual explanations of smiles, tooth anatomy, or nonverbal communication.