What is a key factor in the design of a dental crown?

The external contour of a dental crown is crucial in its design as it directly affects both the aesthetics and functionality of the restoration. The correct external contour helps to ensure that the crown aligns well with the natural teeth and the overall dental arch, which is vital for proper occlusion and bite dynamics. Additionally, an appropriately contoured crown can contribute to better plaque control and gum health by minimizing areas where food can become trapped, reducing the risk of periodontal issues.

While factors like color matching with adjacent teeth, thickness of the crown material, and alignment with the dental arch all play significant roles in the overall success of a dental crown, the external contour is foundational. A well-designed contour provides both an ideal fit and aesthetic integration, making it a key consideration during the design phase.