TheWorksheets.com

ce500 - An Overview of Dental Anatomy

5 Crest® Oral-B ® at dentalcare.com • Philtrum – Vertical groove or depression in the midline above the upper lip. • Tragus – Triangle flap of cartilage that is at the external opening of the ear. • Tubercle of the lip – Midline of the upper lip that has a small tissue projection. • Vermillion border – Where the skin and lips meet. • Vermillion zone – The reddish portion ...