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Occlusion > Glossary > Flashcards

Glossary Flashcards

1
Q

What are the three classes in angle’s classification of occlusion?

A

Class I, II, III

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2
Q

Class ___ is the ideal relationship of posterior teeth when the mesiobuccal cusp of the maxillary first molar is centered on the buccal groove of the mandibular first molar

A

I

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3
Q

Class ___ maloclusion inwhich the mandibular dental arch is posterior to the maxillary arch in one or both lateral segments; mandibular first molar is distal to the maxillary first molar compared to class I relationship

A

II

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4
Q

Class ___ malocclusino in which the mandibular dental arch is anterior to the maxillary dental arch in one or both lateral segments; mandibular first molar is mesial to the maxillary first molar compared to the ideal class I relationship

A

III

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5
Q

____ ______ is the influence of the contacting surfaces of anterior teeth on tooth-limiting mandibular movements

A

anterior guidance

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6
Q

____ _____ ____ is a form of mutually protected articulation in which the vertical and horizontal overlap of the anterior teeth disengage the posterior teeth in all mandibular excursive movements

A

anterior protected articulation (anterior guidance, cuspid guidance, cuspid rise)

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7
Q

_____ ______ is the relative position of teeth to forma a curved or “U” shaped confiuguration when viewed from the occlusal aspect

A

arch alignment (teeth alignment)

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8
Q

______ _______ is the orentation of the long axis of a crown (natural or artificial) relative to the sagittal and frontal planes. It may be given generally, in terms of buccal or lingual, and mesial or distal; or specifically in degrees (some portion of 360 degrees)

A

Axial inclination

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9
Q

______ Angle is the angle formed between the sagittal plan and the average path of the non-working condyle, as viewed in the transverse plane, during lateral movements

A

Bennett

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10
Q

______ ______ is the bilateral, simultaneous anterior and posterior contact of teeth in centric and eccentric positions. This occlusion is characteristic of heavily worn natural teeth and complete denture design

A

Balanced Articulation (Balanced Occlusion)

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11
Q

______ movement is the mandibular movement at the limits dictated by anatomic structures, as viewed in a given plane

A

border

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12
Q

_____ position is a position of the mandible when it is at the limit of active or passive movement in any direction in space

A

border

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13
Q

_____ _____ articulation is a form of mutually-protected articulation in which the vertical and horizontal overlap of the canine teeth disengage the posterior teeth in the excrusive movements of the mandible

A

canine protected (canine guidance, cuspid guidance, cuspid rise)

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14
Q

_____ ____ are the lingual cusps of the maxillary posterior teeth and the buccal cusps of the mandibular posterior teeth. Those cusps or incisal edges of teeth that contact in and support centric occlusion, usually facial cusps of mandibular posterior teeth, maxillary palatal cusps, and incisal edges of mandibular anterior teeth

A

centric cusps

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15
Q

_____ ______ is the occlusion of opposing teeth when the mandible is in centric relation, This may or may not coincide with maximum intercuspasition position

A

centric occlusion (CO)

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16
Q

______ ____ is the maxillomandibular relationship in which the condyles articulate with the thinnest avascular portion of their respective disks with the complex in the anterior-superior position against the shapes of the articular eminences

A

Centric relation (CR)

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17
Q

Centric relation is _______ of tooth contact

A

independent

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18
Q

Centric relation is restricted to a purely _____ movement about the transverse horizontal axis

A

rotary

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19
Q

____ _____ is the mechanical form located on the upper-posterior region of an articulator that controls the movement of its mobile member (movement is intended to stimulate that produced by the condyles in the TMJs)

A

condylar guidance

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20
Q

______ ____ is the path traveled by the mandibular condyle in the TMJ during any movements of the madible

A

condylar path

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21
Q

_________ Curve is the concave (superiorly) line formed by the cusp tip of the mandibular canine and the buccal cusps of the mandibular posterior teeth (usually shown projected onto the median plane)

A

Anteroposterior (curve of spee)

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22
Q

________ curve is viewed from the frontal plane and it is a concave (superiorly) curve which contacts the buccal and lingual cusps of the mandibular molars bilaterally

A

mediolateral (curve of wilson)

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23
Q

_____ - ______ contact is the relationship that exists when a centric cusp occludes with an opposing fossa, resulting in 3 pts of contact, with no contact on the cusp tip. occurs in both the cusp-marginal ridge and cusp fossa occlusal schemes

A

cusp-fossa

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24
Q

____ -____ occlusal scheme is when the entire arrangement of posterior teeth in which centric cusps occlude exclusively in specified fossae of the opposing maxillary or mandibular counterpart crown. This articulation is usually associated with gnathologic based oral rehabilitiation (therapeutic occlusion)

A

cusp-fossa (tooth-to-tooth occlusion)

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25
Q

_____- _____ ___ occlusal scheme is when the entire arrangement of posterior teeth in which centric cusps occlude in specified fossae or on adjacent marginal ridges of the opposing maxillary or mandibular crown or crowns. Most common type of naturally occurring occlusion

A

cusp-marginal ridge (tooth-to-two tooth occlusion)

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26
Q

_____- ____ ____ contact is the relationship when a centric cusp occludes with opposing adjacent marginal ridges resulting in 2 contact areas. Occurs in the cusp-marginal ridge scheme of occlusion but not in the cusp-fossa scheme

A

cusp-marginal ridge

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27
Q

____ _____ contact is contact in which any surface diverts the mandible from its intended movement

A

Deflective Occlusal

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28
Q

_____ of mandibular movement are those anatomic structures that dictate or limit the movements of the mandible when the teeth are in contact

A

Determinants

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29
Q

The anterior determinant of mandibular movement is the _____ _____

A

dental articulation

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30
Q

The posterior determinant of mandibular movement are the _______ _______ and their associated structures

A

temporomandibular articulations

31
Q

_______ is the spaces formed about the proximal contact areas of adjacent teeth. The _____ may be divided into 4 regions; occlusal (incisal), mesal, distal, and gingival (cervical)

A

Embrasure

32
Q

_______ movements occur when the mandible moves away from maximal intercupsation

A

excrusive

33
Q

________ mandibular movements, are all normal, proper, or characteristic movements of the mandible made during mastication, swallowing, speech, and other associated movements (occurs within the range from centric relation to all facial-edge-to-edge maxillary to mandibular tooth excrusive positions

A

functional

34
Q

______ is the influence on mandibular movements by the contacting surfaces of the maxillary and mandibular anterior

A

Guidance

35
Q

_____ of ______ is a line encircling a tooth and designating its greatest circumference at a selected axial position determined by a dental surveyor; a line encircling a body designating its greatest circumference in a specified plane

A

height of contour

36
Q

______ _____ is the amount by which the incisal edges of the maxillary anterior teeth are labial to the incisal edges of the mandibular teeth at maximum intercuspation. The projection of teeth beyond their antagonists in the horizontal plane

A

horizontal overlap (overjet)

37
Q

_____ any tooth contacts that interfere with or hinder harmonious mandibular movement

A

interference

38
Q

______ tooth alignment is the position of the mandibular teeth (or tooth) relative to the maxillary teeth (or tooth) when the teeth are maximally occluded

A

interarch

39
Q

______ _____ is the mediolateral movement of the mandible when viewed in the frontal plane

A

mandibular translation (sideshift, Bennett movement)

40
Q

Mandibular translation, _____ is the translatory portion of lateral movement in which the greatest portion occurs early in the first 4 mm of forward movement of the non-working condyle as it leaves centric relation

A

early

41
Q

Mandibular translation, ______ is the translatory portion of lateral movement in which the non-working condyle moves essentially straight and medially as it leaves the centric relation postion

A

immediate (immediate sideshift)

42
Q

Mandibular translation, _______ is the translatory portion of mandibular movement viewed in the transverse plane that occurs at a rate or amount that is directly proportional to the froward movement of the non-working condyle (ie straight line movement)

A

progressive (distributed mandibular translation)

43
Q

____ ______ _____ is the complete intercuspation of the opposing teeth independent of condylar position

A

Maximum intercuspal position (maximum intercuspation, MI, MIP, IP)

44
Q

_____ ______ contacts are the tooth contacts (static) in maximal intercuspation

A

maximal intercuspal

45
Q

____ ______ occlusal prematurity any contact of opposing teeth which prevents the mandible from achieving the position of maximal intercuspation. This usually results in an increased occlusal vertical dimension which is at a minimum during maximal intercuspation.

A

maximal intercuspation (deflective contact, interference)

46
Q

_____ ______ articulation is an occlusal scheme in which the posterior teeth prevent excessive contact of the anterior teeth in maximal intercuspasation, and the anterior teeth disengage the posterior teeth in all mandibular excursive movements

A

mutually protected (mutually protected occlusion)

47
Q

_____ - _____ cusps are the buccal cusps of the maxillary posterior teeth and the lingual cusps of the mandibular posterior teeth

A

non-centric (non-functional cusps, guiding cusps)

48
Q

_____-______ side is the side of the mandible opposite to the direction of movement or displacement. Assume the direction of movement is away from maximal intercuspation. The side of the mandible that moves toward the median line in lateral excursion.

A

Non-working (non-functional side)

49
Q

___-_____ side occlusal contacts are any tooth surface making contact on the side which hinders the desired occlusal contact or mandibular movment

A

non-working (non-working interferences)

50
Q

Occlusal _____ is any contact of opposing teeth that occurs before the planned intercuspation

A

prematurity

51
Q

Occlusal _____ is the portion of the occlusal surfaces of posterior teeth that lies within the perimeter of the cusp tips and marginal ridges

A

table

52
Q

Occlusal _____ _____ is the maximum buccolingual dimension of the occlusal table; the distance fro mthe buccal cusp apex to the lingual cusp apex as viewed fro mthe mesial or distal

A

table width

53
Q

Occlusal ______ dimension is the distance measured btw a maxillary reference pt and the mandibular counterpart when the occluding members are in contact. This distance is at a minimum with the mandible in maximal intercuspation

A

vertical (VDO, vertical dimension of occlusion)

54
Q

_______ occlusion is an occlusal scheme or design which is thought to satisfy all mechanical and neuromuscular requirements for maximum sustained health of the masticatory system

A

Optimal (ideal occlusion)

55
Q

_______ occlusion is an occlusion scheme that exists in the absence of signs and symptoms of occlusion-related pathosis. Acceptabiltiy of occlusal variation and a sense of psychological and physical patient comfort are implied

A

Physiologic

56
Q

_____ is anterior movment of the madible

A

Protrusion

57
Q

____ contacts are any tooth surface making contact when the mandible moves anteriorly

A

Protrusive

58
Q

_______ ______ occlusal contact is any surface which hinders the desired occlusal contact or mandibular movement during anterior excursions

A

Protrusive Deflective (protrusive interference)

59
Q

_________ contact position is the relation of the mandible to the maxillae at the instant of tooth contact following closure about the transverse horizontal axis

A

Retruded

60
Q

____ is the posterior movement of the mandbile

A

Retrusion

61
Q

______ contact is any tooth surface making contact when the mandible moves posteriorly

A

Retruded

62
Q

______ _______ Occlusal contacts are any tooth surface which hinders the desired occlusal contact or movement of the mandible during posterior movement. Often applied to the range of movement btw maximal intercuspation and the retruded contact position (or centric occlusion)

A

Retrusive Deflective (retrusive interferences)

63
Q

________ articulation is the malocclusion in which the mandibular teeth are located facial to an ideal occlusal relationship with the opposing maxillary teeth when all teeth are maximally occluded. May involve entire mouth, specific segments, or individual teeth. Maxillary buccal cusps articulate on the central fossae line of mandibular teeth

A

Reverse (crossbite, reverse occlusion)

64
Q

______ occlusion is an occlusal scheme devised and executed by the dentist using comprehensive restorative techniques. It may be used to counteract existing or to minimize future problems

A

Therapeutic

65
Q

_______ _______ ______ is an unique imaginary mediolateral line about which the mandible can be made to repeatedly undergo pure rotation by clinical maniupulation. Both condyles should occupy the most superoanterior position in their mandibular fossa with discs properly interposed

A

Transverse Horizontal Axis (terminal hinge axis)

66
Q

Terminal Horizontal Axis ______ is the arcing motion of the mandbile about the transverse axis. The mandibular cusps move in arcs whose radii are determined by the cusp’s distance from the transverse horizontal axis

A

Movement (arc of closure)

67
Q

Transverse Horizontal Axis ______ _______ _____ is any tooth that hinders desired occlusal contact or mandibular movement when the mandible is rotated about the transverse horizontal axis

A

Deflective occlusal contact (centric relation interference)

68
Q

______ ______ occlusion is simultaneous contact of most teeth on the working side, but no contact on the non-working side

A

Unilateral Balanced Occlusion (group function occlusion)

69
Q

_______ dimension is the degree of separation (distance btw ) the maxillae and the mandible

A

vertical

70
Q

______ _____ is the amount by which the incisal edges of the maxillary anterior teeth are inferior to the incisal edges of the mandbular teeth at maximal intercuspation

A

Vertical overlap (overbite)

71
Q

______ _____ is the side toward which the mandible moves or is displaced. Assume movement or displacement is away from maximal intercuspation

A

working side ( laterotrusive contacts)

72
Q

_____ _____ contacts are any tooth surface making contact on the side of the mandible toward which it is displaced. Assume displacement occurs laterally from the maximal intercuspal position

A

working side (functional side contacts)

73
Q

Working side ______ _______ contacts are any tooth surface on the working side which hinders the desired occlusal contact or mandibular movemnet

A

deflective occlusal (working or functional side interference)

Occlusion (1 decks)

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