Occlusal plane is
the average plane established by the incisal and occlusal surfaces of the teeth
; it is not a plane but represents the planar mean of the curvature of the surfaces [3].
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 name for the curve of the occlusal plane?
The occlusal curve (
Curve of Spee; von Spee’s curve; Spee’s curvature
) is defined as the curvature of the mandibular occlusal plane beginning at the tip of the lower cuspid and following the buccal cusps of the posterior teeth, continuing to the terminal molar.
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 is the curve of Wilson in dentistry?
The curve of Wilson is
the across arch curvature or posterior occlusal plane
. Arc of the curve, which is concave for mandibular teeth and convex for maxillary teeth are defined by a line drawn from left mandibular first molar to right mandibular first molar.
Who gave curve of Spee?
The curve of Spee was described by
F. Graf von Spee
[2] in 1890.
What is the significance of curve of Spee?
The long axis of each lower tooth is aligned nearly parallel to their individual arch of closure. The Curve of Spee is, essentially, a series of sloped contact points. It is
of importance to orthodontists as it may contribute to an increased overbite
. A flat or mild curve of Spee was essential to an ideal occlusion.
What is the name for the space between adjacent teeth?
A space between two adjacent teeth in the same dental arch is
a diastema
. They are primarily caused by imbalance in the relationship between the jaw and the size of teeth.
What device is used when preparing the occlusal plane orientation?
Occlusal plane orientor
is a new device developed to mark occlusal plane parallel to ala-tragus line on maxillary occlusion rim, thereby saving clinician’s time and increasing efficiency. Additionally, it is a useful tool for occlusal plane orientation in patients with facial deformity, absence of an eye or an ear.
What is compensating curve?
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.
What is CR position?
From Wikipedia, the free encyclopedia. In dentistry, centric relation is the
mandibular jaw position in which the head of the condyle is situated as far posterior and superior as it possibly
can within the mandibular fossa/glenoid fossa.
What is Christensen phenomenon?
[C. Christensen, Danish dentist and educator]
A gap occurring in the natural dentition or between the opposing posterior flat occlusal rims when the mandible is protruded
(posterior open bite). It can lead to instability in full dentures unless compensating curves are incorporated into the dentures.
What is freeway space?
The freeway space is described as
the space between the maxillary and mandibular occlusal surfaces when the mandible is in the rest position
and should be 1-5 mm [23] , an opening of up to 5 mm for 88.9% of total sleep time [19].
What is anti Monson curve?
anti-Monson curve – in dentistry,
a curve of occlusion which is convex upward
. Synonym(s): reverse curve. Monson curve – the curve of occlusion in which each cusp and incisal edge touches or conforms to a segment of the surface of a sphere 8 inches in diameter, with its center in the region of the glabella.
What is Angle’s classification?
Angle in 1890, the Angle Classifications are based on
the relationship of the buccal groove of the mandibular first permanent molar and the mesiobuccal cusp of the maxillary first permanent molar
. This classification is considered to be one of the most commonly used methods for identifying misalignment for molars.
