What is curve of Monson?
[G. S. Monson (1869–1933), American dentist] The curve of occlusion of natural teeth in which each cusp and incisal edge touches or conforms to a segment of the surface of a sphere 20.3cm (8in.) in diameter, with its centre in the region of the glabella. See also compensating curve.
What is curve of occlusion?
n. A curved surface that makes simultaneous contact with the major portion of the incisal and occlusal prominences of the existing teeth. The curve of a dentition on which the occlusal surfaces lie.
What is the Curve of Spee and curve of Wilson?
[1] The curve of Spee is designed to permit protrusive disocclusion of the posterior teeth by the combination of anterior guidance and condylar guidance, and the curve of Wilson also permits lateral mandibular excursions free from posterior interferences.
What are the compensating curves?
The curvature of the occlusal plane of dentures, created to permit balanced occlusion, to compensate for the paths of the mandibular condyles as the mandible moves from centric to eccentric positions. See also curve of Spee. From: compensating curve in A Dictionary of Dentistry »
What is eccentric occlusion?
eccentric occlusion occlusion of the teeth when the lower jaw has moved from the centric position.
What is key of occlusion?
The Key to Occlusion has to do with how the Maxillary 1stMolar and the Mandibular 1stMolar come together. In ideal occlusion, the Mesio-Buccal cusp of the Maxillary 1stMolar occludes in the Developmental Groove of the Mandibular 1stMolar. This is known as Class I occlusion. However, not all occlusion is ideal.
What is the difference between centric and eccentric occlusion?
central occlusion (centric occlusion) occlusion of the teeth when the mandible is in centric relation to the maxilla, with full occlusal surface contact of the upper and lower teeth in habitual occlusion. eccentric occlusion occlusion of the teeth when the lower jaw has moved from the centric position.
How do you find the curve of a Spee?
The depth of curve of Spee was measured as the perpendicular distance between the deepest cusp tip and a flat plane that was laid on the top of the mandibular dental cast, touching the incisal edges of the central incisors and the distal cusp tips of the most posterior teeth in the lower arch [Figure 1].
What is 7th key of occlusion?
Boltons ratio, seventh key of occlusion aids in analyzing the proportionality of the maxillary and mandibular teeth. This analysis helps in diagnosing, analyzing and treating a case into a harmony resulting into structural and functional stability of upper and lower arch in any given case.