Which type of head form is the most common, characterized by a semi-circular cranium and a curved jawline?

The most common type of head form characterized by a semi-circular cranium and a curved jawline is the oval shape. An oval head form has a gentle curvature that creates a softer, balanced appearance, making it widely recognized and common among individuals. This shape is considered aesthetically pleasing in the study of facial proportions and is often associated with a harmonious and symmetrical appearance.

The oval head form serves as a foundational guideline in cosmetic practices, including hairstyling and makeup application, because it allows for a versatility that works well with a variety of styles. Understanding head shapes is crucial in the mortuary sciences, particularly for funeral professionals who may need to consider restorative art techniques or preparation to achieve a natural appearance for the deceased that aligns with their individual characteristics. The oval shape's combination of width and length provides a natural proportion, often reflecting an ideal standard in various cultures.