Dentil crown moulding is a unique architectural feature that adds historical charm and sophistication to a room. The signature design consists of small, rectangular blocks (dentils) evenly spaced along a flat section of the moulding, resembling teeth. Above the dentils is typically a curved or stepped section that merges with the ceiling. This moulding type is often found in traditional or classical architectural styles, with the dentil pattern adding rhythm, texture, and a striking visual appeal to any interior space.