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Test your basic knowledge |
Dentistry Occlusion
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Subjects
:
health-sciences
,
dentistry
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
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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. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift
open bite
Malocclusion
Mandibular posterior teeth vertical alignment
conditions that occur in class I malocclusion
2. Teeth are misaligned when biting together
hypercementosis
mesial step
Malocclusion
centric occlusion - centric relation - protrusive and lateral movements
3. Relationship of the teeth in which the incisal ridges of the maxillary anterior teeth extend below the incisal edges of the mandibular anterior teeth when the teeth are placed in a centric occlusal relationship
crossbite
Overbit
protrusive occlusion
Unilateral crossbite occurs when
4. Vertical
overjet
malocclusion
functional occlusion
Overbite is a ___ measurement
5. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
secondary occlusal trauma
Premature contact
intercuspation
Mandibular posterior teeth vertical alignment
6. Horizontal distance of anterior teeth in crossbite
underjet
centric occlusion
interdigitation
openbite
7. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
fremitus
Working side
tooth mobility
class II
8. Laterally
conditions that occur in class I malocclusion
Nonworking side
From a frontal view - anterior teeth lean ___
traumatic overbite
9. Prognathic profile; buccal groove of mand. 1st molar-mesial to mb cusp of max. 1st molar; distal of mand. canine mesial to mesial of max canine; tendency toward class III
class III - classificaiton
causes of open bite
Centric relation
occlusal trauma
10. If the mandible moves to the left - the mvmt is known as a left working movement
curve of monson
torsoversion
traumatogenic occlusion
left working movement
11. Horizontal
Overjet is a ___ measurement
curve of wilson
curve of spee
occlusal erosion
12. Primary teeth set ___________________ for permanent
class III
occlusion pattern
premature occlusal contact
overjet
13. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
class III - classificaiton
Lateral excursion
anterior crossbite
group function
14. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
horizontal overlap
class III
premature occlusal contact
class I
15. Occlusal guard =
hawley appliance
mesial step
causes of open bite
splinting
16. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors
Underjet
centric occlusion - centric relation - protrusive and lateral movements
conditions that occur in class III
Abfraction
17. What is not affected by occ trauma
class II - div 2
gingiva
severe overbite
temporalis and masseter
18. Individual teeth from each arch can be involved in ________________ malocclusion
inter-arch
pathologic tooth migration
other names for centric occlusion
occlusal trauma
19. Lateral mvmt results in contacct of all posterior teeth
group function
occlusion
class II
curve of wilson
20. ____ is not a sign of occl trauma
class I
occlusal erosion
Intercuspation
normal overbite
21. Both sides
excessive occlusal force
traumatogenic occlusion
Centric(habitual) occlusion
Bilateral crossbite occurs on...
22. Starts around the mesial of the 1st molar
occlusal trauma
curve of monson
normal curve of spee
Hereditary factors include
23. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
functional occlusion
hawley appliance
Leeway space
posterior contact
24. The patient is constantly tightening the lower lip against the lower anterior teeth causing the the mandibular teeth to be pushed back into the mouth by this overdeveloped lower lip
Retrusion
temporalis and masseter
How the diastemas are closed up(including primates spaces)
causes of primary occlusal trauma
25. The side to which the mandible moves(chewing side)
Working side
hawley appliance
posterior crossbite
pathologic tooth migration
26. Maxillary - Mandibular - Facial
The cusps of the ___ teeth overlap the cusps of the ____ teeth so that the buccal cusps of the maxillary teeth are ___ to the buccal cusps of the mandibular teeth
dynamic occlusion
distal step
normal overbite
27. The permanent molars erupt posterior to the primary teeth and push them all mesially
crestal funneling
How the diastemas are closed up(including primates spaces)
From a frontal view - anterior teeth lean ___
Abfraction
28. Mb cusp of max 1st molar-buccal groove of mand 1st molar
Occlusion can be affected by
molar relationship
other names for centric occlusion
decrease over time
29. Later
Condyles of the mandible continue grow ___than the maxilla
molar relationship
intercuspation
functional occlusion
30. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
class II malocclusion
Curve of Spee
Nonworking side
occlusal erosion
31. Mandibular molars more distal than maxillary molars
distal step
class I
Leeway space
Premature contact
32. Selective grinding should always be completed after ______ has been controlled
conditions that occur in class II - div I
non working or balancing side
inflammation
premature curve of spee
33. Contact between maxillary incisors does not line up with contact of mandibular incisors
fremitus
conditions that occur in class III
Midline deviation
conditions that occur in class II - div I
34. Below occlusal plane
infraversion
Leeway space
functional contacts
Overjet is a ___ measurement
35. Mesially - Labially
conditions that occur in class II - div 2
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
codestructive theory
From a frontal view - anterior teeth lean ___
36. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
secondary occlusal trauma
severe overbite
Condyles of the mandible continue grow ___than the maxilla
normal overbite
37. Most common cause is when the maxilla does not grow in proportion to the mandible
Maxillary posterior teeth vertical alignment
class II malocclusion
labialversion or buccoversion
Crossbite
38. Relationship of the arches bone to bone;
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
inter-arch
centric relation
posterior contact
39. Symptom free dentition that 'survives' or 'adapts' to a deviated occl
physiologic occlusion
Maxillary posterior teeth vertical alignment
class II division I occlusion
canine guidance or protection
40. Normal contacts between max. and mand. teeth; momentary contacts
crossbite
functional contacts
anterior crossbite
Nonworking side
41. Abnormal contacts; occlusal habits - and neuroses
primate spaces
conditions that occur in class I malocclusion
parafunctional contacts
overjet
42. Curve spee & wilson - 3-d - not proven
molar relationship
posterior crossbite
The cusps of the ___ teeth overlap the cusps of the ____ teeth so that the buccal cusps of the maxillary teeth are ___ to the buccal cusps of the mandibular teeth
curve of monson
43. During selective grinding - occlusion should be adjusted In what four relationships
centric occlusion - centric relation - protrusive and lateral movements
Edge to edge bite occurs when
canine guidance or protection
protrusive occlusion
44. Spaces between two teeth
diastemas
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
leeway spaces
Retrusion
45. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together
parafunctional contacts
occlusion
gingiva
Leeway space
46. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
Intercuspation
traumatogenic occlusion
temporalis and masseter
Bilateral crossbite occurs on...
47. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
left working movement
openbite
overjet
Centric occlusion is also called
48. Maximal intercuspation or contact of the max and mand teeth
excessive occlusal force
centric occlusion
Centric occlusion is also called
premature curve of spee
49. A continuation of the spee of to extend through the condyle
An ideal curve of spee would be
inter-arch
non working or balancing side
late curve of spee
50. Habitual - acquired - convenience - intercuspal & static
other names for centric occlusion
primary occlusal trauma
Edge to edge bite occurs when
overbite
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