NAVTA Practice Test

The tooth surface that is on the outside of the teeth is called the buccal surface (A).The distal surface (B) is the surface of the tooth that faces away from the midline of the mouth, while the labial surface (C) is the surface that faces towards the lips. The palatal surface (D) is the surface on the upper teeth that faces towards the tongue. Therefore, these options all refer to surfaces on different sides or directions of the teeth, making them all incorrect answers.