DentalCare Logo

An Overview of Dental Anatomy

Course Number: 500

Facial Landmarks

The facial landmarks can be visualized in Figure 2. These landmarks also form a benchmark for determining normal facial anatomy when performing an extraoral examination on a patient.1

facial landmarks

Figure 2. Facial Landmarks.

  • Ala– Wing of the nose.

  • Inner canthus of the eye– The inner corner of the eye.

  • Labial commissures – Corners of the mouth.

  • Labiomental groove – Area that separates the lower lip and the chin.

  • Naris – Nostril.

  • Nasal septum – Vertical separation of the nasal cavity.

  • Nasiolabial sulcus – Groove that runs upward from the commissures of the mouth and the ala of the nose.

  • Nasion – Midline junction between the eyes just below the eyebrows.

  • Outer canthus of the eye – The outer corner of the eye.

  • 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 of the lips.