Curve of Spee
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Curve of Spee

Occlusion

Oral Anatomy

Curve of Spee

The occlusal surfaces of dental arches do not generally confirm to a flat plane. For example the mandibular arch has one or more curved plane confirming to the arrangement of the teeth in the dental arches.

  • Von Spee noted that the cusps and incisal ridges of the teeth tended to display a curved alignment when arches were observed from a point opposite to the first molar.
  • This alignment is spoken off as the compensating curve and "curve of spee"
  • The curve of spee has clinical significance in relation to tooth guidance, i.e. canine inscisal guidance, in orthodontics and restorative dentistry.
  • Increasing the curve of spee can compensate for smaller maxillary anterior teeth, especially lateral incisors
  • Reducing the curve of spee can reduce the vertical overlap of tooth.
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