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Test your basic knowledge |
Dentistry Occlusion
Start Test
Study First
Subjects
:
health-sciences
,
dentistry
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Anterior; no horizontal overlap
edge to edge
From a frontal view - anterior teeth lean ___
curve of monson
Malocclusion
2. Mb cusp of max 1st molar-buccal groove of mand 1st molar
other names for centric occlusion
physiologic occlusion
molar relationship
crossbite
3. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
causes of open bite
tooth mobility
If the condyles continue to grow - extreme mesial step will turn into ___
Dentures
4. Mandibular molars and maxillary molars are even
flush terminal plane
Working side
physiologic occlusion
occlusal trauma
5. Need tooth to tooth contact on both working and non working sides to func effectively
conditions that occur in class II - div 2
primate spaces
Glickman 1963
Dentures
6. Habitual - acquired - convenience - intercuspal & static
openbite
inter-arch
Premature contact
other names for centric occlusion
7. The permanent molars erupt posterior to the primary teeth and push them all mesially
How the diastemas are closed up(including primates spaces)
From a frontal view - anterior teeth lean ___
premature curve of spee
pathologic tooth migration
8. Rotated or twisted; rotated mesial or distal
torsoversion
Intercuspation
occlusal erosion
functional occlusion
9. Tooth extracted
conditions that occur in class II - div I
traumatogenic occlusion
mesial step
drifted mesial
10. What is not affected by occ trauma
other names for centric occlusion
gingiva
labialversion or buccoversion
conditions that occur in class III
11. Cusps of maxillary teeth directly over cusps of mandibular teeth
Maxillary posterior teeth vertical alignment
conditions that occur in class II - div 2
functional contacts
Edge to edge bite occurs when
12. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
divisions of parafunctional contacts
functional occlusion
decrease over time
causes of primary occlusal trauma
13. Starts closer to the posterior of the 1st molar
centric occlusion
normal curve of spee
How the diastemas are closed up(including primates spaces)
late curve of spee
14. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
parafunctional contacts
Bilateral crossbite occurs on...
occlusal erosion
Curve of Spee
15. Primary teeth set ___________________ for permanent
occlusion pattern
Glickman 1963
crossbite
If the condyles continue to grow - extreme mesial step will turn into ___
16. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
leeway spaces
Maxillary posterior teeth vertical alignment
From a frontal view - anterior teeth lean ___
anterior crossbite
17. Maxillary anterior teeth stick out labially from tongue thrusting
Protrusion
conditions that occur in class II - div 2
Overbit
inter-arch
18. Maxillary-between canines and laterals - mandibular-between canines and 1st molars
occlusion pattern
primate spaces
Occlusion can be affected by
conditions that occur in class I malocclusion
19. Slight buccal inclination of crown - lingual inclination of root
traumatic overbite
Condyles of the mandible continue grow ___than the maxilla
Maxillary posterior teeth vertical alignment
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
20. Associated with performance; all contacts during function of the oral cavity
physiologic occlusion
causes of primary occlusal trauma
functional occlusion
Curve of Spee
21. Does not result from brushing at all - but from traumatic lateral forces placed on the teeth as a result of a malocclusion or abnormal tongue activity. Root surface is exposed & can become carious
splinting
occlusion
overjet
Abfraction
22. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
curve of wilson
Curve of Spee
osteoclast resorption
centric occlusion
23. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
If the condyles continue to grow - extreme mesial step will turn into ___
supraversion
Overbite is a ___ measurement
anterior crossbite
24. Relationship of the arches bone to bone;
conditions that occur in class III
flush terminal plane
Midline deviation
centric relation
25. Middle 3rd
moderate overbite
Open bite
group function
Overjet is a ___ measurement
26. Below occlusal plane
physiologic occlusion
How the diastemas are closed up(including primates spaces)
conditions that occur in class II - div I
infraversion
27. Max canine occludes with mand. canine and mand. 1st premolar.
traumatic overbite
Glickman 1963
canine relationship
Nonworking side
28. #10 & #23
anterior crossbite
class I
openbite
protrusive occlusion
29. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
Abfraction
Centric(habitual) occlusion
underjet
occlusal trauma
30. Excessive deposition of cementum around the apex - due to excessive occlusal forces
conditions that occur in class III
hypercementosis
Nonworking side
edge to edge
31. Maxillary overlap mandibular; whole arch
horizontal overlap
inter-arch
class II
distal step
32. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
Centric occlusion is also called
excessive occlusal force
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Curve of Wilson
33. Mandible moves to the right or left
splinting
Lateral excursion
tooth mobility
torsoversion
34. ____ is not a sign of occl trauma
inter-arch
occlusal erosion
Unilateral crossbite occurs when
protrusive occlusion
35. Functional occlusion
dynamic occlusion
splinting
Intercuspation
Crossbite
36. Mandibular molars more mesial than maxillary molars (most children)
occlusal trauma
vertical overlap
class III - classificaiton
mesial step
37. Overlap of anterior teeth
functional contacts
vertical overlap
divisions of parafunctional contacts
Acromegaly
38. Maximum interlocking of cusp
class II malocclusion
intercuspation
Premature contact
underjet
39. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
Premature contact
excessive occlusal force
curve of wilson
Retrusion
40. Above occlusal plane
physiologic occlusion
dynamic occlusion
overjet
supraversion
41. Relationship of the teeth in opposite arches; static position
Curve of Spee
pathologic tooth migration
centric occlusion
crossbite
42. Laterally
Malocclusion
class III
From a frontal view - anterior teeth lean ___
causes of open bite
43. During a left working movement - the right side is known as the
non working or balancing side
end to end
Overbite is a ___ measurement
pathologic tooth migration
44. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus
excessive occlusal force
interdigitation
traumatogenic occlusion
torsoversion
45. Tooth positioned more facial
Midline deviation
labialversion or buccoversion
decrease over time
tooth mobility
46. Cervical 3rd
protrusive occlusion
severe overbite
traumatogenic occlusion
infraversion
47. Measurement of horizontal overlap w/ probe
overjet
An ideal curve of spee would be
non working or balancing side
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
48. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
conditions that occur in class II - div I
Curve of Wilson
severe overbite
secondary occlusal trauma
49. Most common cause is when the maxilla does not grow in proportion to the mandible
Overjet is a ___ measurement
class III - classificaiton
bone support
Crossbite
50. Mesially - Labially
Condyles of the mandible continue grow ___than the maxilla
hypercementosis
malocclusion
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___