Curve of Spee

Curve of Spee

The Curve of Spee is an anatomical feature of the human dentition. It is named after the German anatomist Ferdinand Graf von Spee, who first described it in the late 19th century. The curve of Spee is a curvature of the mandibular (lower) occlusal plane, or the plane along which the lower teeth make contact with the upper teeth.

Etymology

The term "Curve of Spee" is derived from the name of Ferdinand Graf von Spee, a German anatomist who first described this feature.

Description

The Curve of Spee is a concave curve in the buccal (cheek side) view of the mandibular arch, starting from the tip of the lower canine and following the buccal cusps of the posterior teeth, ending at the last molar. It is the result of the combined anatomical features of the human skull and jaw, and the alignment and shape of the teeth.

Clinical significance

The Curve of Spee has significant implications in the field of Orthodontics. It is considered in the diagnosis and treatment planning of orthodontic cases, particularly in relation to occlusal adjustment and the fitting of dental prosthetics. An exaggerated Curve of Spee can lead to functional problems, such as difficulty in chewing and speaking, and may also contribute to the development of temporomandibular joint disorders (TMJD).

Related terms

• Curve of Wilson: A curve in the occlusal plane of the teeth, viewed from the front, that is at right angles to the Curve of Spee.
• Monson's Sphere: A theoretical geometric concept in which each cusp and incisal edge touches or aims to touch a sphere of a 4-inch (100 mm) radius with its center in the region of the glabella.

See also

• Dental anatomy
• Orthodontics
• Temporomandibular joint disorder

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