Final answer:
The Line Angle of an Anterior tooth where the distal surface and facial surface meet is called the dentofacial or dentilabial angle, which is a specific point used in dental terminology for descriptive and clinical purposes.
Step-by-step explanation:
The Line Angle of an Anterior tooth, which is specifically the angle where the distal surface and the facial surface contact each other, is known as the dentofacial or dentilabial angle. This term describes the angle formed at the junction of two surfaces of the tooth.
In anterior teeth, or front teeth, each surface is described relative to its location. The distal surface is the surface away from the midline of the face, and the facial or labial surface is the one facing towards the lips or cheeks.
The line angle is a specific location that helps dentists and dental professionals describe where on the tooth they are working or where a dental issue, such as decay or a chip, may be located.