Curve of spee

Anatomical curve of the human dentition

Curve of Spee

System	Dental

The Curve of Spee is an anatomical curvature of the occlusal alignment of the human dentition, first described by the German anatomist Friedrich Hermann Christoph von Spee in 1890. This curve is observed in the sagittal plane and is characterized by the anteroposterior curvature of the occlusal surfaces of the teeth.

Anatomy and Function

The Curve of Spee begins at the tip of the lower canine and follows the buccal cusps of the posterior teeth, extending to the anterior border of the mandibular condyle. This curvature is concave in the mandibular arch and convex in the maxillary arch.

The Curve of Spee plays a crucial role in the functional dynamics of the temporomandibular joint (TMJ) and the overall occlusion of the teeth. It contributes to the efficient mastication of food by allowing for a harmonious relationship between the maxillary and mandibular teeth during chewing and biting.

Clinical Significance

The Curve of Spee is an important consideration in orthodontics and prosthodontics. An exaggerated or flattened Curve of Spee can lead to malocclusion, which may require orthodontic intervention to correct. In orthodontic treatment, leveling the Curve of Spee is often necessary to achieve a balanced occlusion and optimal function.

In prosthodontics, the Curve of Spee is considered when designing dental prostheses to ensure proper occlusal relationships and to prevent undue stress on the TMJ and supporting structures.

Historical Background

The Curve of Spee was named after Friedrich Hermann Christoph von Spee, who first described this anatomical feature in his studies of human dentition. His work laid the foundation for understanding the dynamic relationships within the dental arches and their impact on oral function.

Also see

• Curve of Wilson
• Occlusion (dentistry)
• Temporomandibular joint
• Orthodontics
• Prosthodontics