A 2 adjacent teeth not touching is called

• A. Diastema
• B. Gingival recession
• C. Hyperplasia
• D. Occlusal wear

Answer: (A)

A gap between two adjacent teeth that are not touching is called a diastema. This spacing can occur anywhere in the dental arch and is most noticeable between the upper front teeth. It happens when the available space in the jaw exceeds the size of the teeth, or when factors like a prominent labial frenum, eruption patterns, or certain habits create or maintain that gap.

Gingival recession refers to the gum line pulling away from the teeth, exposing root surfaces. Hyperplasia is an abnormal increase in the size of the gum tissue. Occlusal wear is the loss of tooth structure from grinding or other abrasive forces on the chewing surfaces.