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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.
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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. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
Centric relation
centric occlusion
overbite
anterior crossbite
2. II (mal)occlusion
infraversion
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
class II
Overbit
3. Permits healing of the attachment apparatus by holding a tooth in a totally fixed position; allows the PDL to become narrower and the mobility to be reduced
occlusion
class II - div 2
torsoversion
splinting
4. Functional occlusion
dynamic occlusion
moderate overbite
overjet
occlusion pattern
5. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth
decrease over time
malocclusion
class III
Working side
6. Mandibular molars more distal than maxillary molars
excessive occlusal force
Occlusion can be affected by
molar relationship
distal step
7. During a left working movement - the right side is known as the
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
posterior contact
Crossbite
non working or balancing side
8. When no teeth are contacting on this side
occlusal trauma
Nonworking side
causes of open bite
class II division I occlusion
9. During selective grinding - occlusion should be adjusted In what four relationships
centric occlusion - centric relation - protrusive and lateral movements
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
crossbite
open bite
10. #7 - 26 - 27
premature occlusal contact
crossbite
Unilateral crossbite occurs when
Hereditary factors include
11. After periodontal sugery - mobility will ________
group function
decrease over time
occlusion
Glickman 1963
12. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
causes of open bite
Condyles of the mandible continue grow ___than the maxilla
secondary occlusal trauma
Curve of Wilson
13. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
occlusal trauma
class II
Centric relation
secondary occlusal trauma
14. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors
canine relationship
Maxillary posterior teeth vertical alignment
conditions that occur in class III
Lateral excursion
15. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
Misalignment of teeth
primate spaces
end to end
Curve of Spee
16. Maxillary incisors are are lingual to mandibular incisors
causes of open bite
canine guidance or protection
Edge to edge bite occurs when
Underjet
17. Above occlusal plane
posterior crossbite
supraversion
intercuspation
openbite
18. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
Centric(habitual) occlusion
selective grinding or occlusal equilibration
occlusal erosion
Unilateral crossbite occurs when
19. Crowns tipped lingually - roots tipped laterally
Mandibular posterior teeth vertical alignment
Edge to edge bite occurs when
Hereditary factors include
Abfraction
20. During protrusive occ - ______ is considered undesirable
Centric relation
posterior contact
Abfraction
Leeway space
21. Occlusal guard =
hawley appliance
Overjet is a ___ measurement
distal step
Malocclusion
22. Anterior; no horizontal overlap
centric relation
edge to edge
vertical overlap
tooth mobility
23. Cervical 3rd
Occlusion can be affected by
Maxillary posterior teeth vertical alignment
severe overbite
fremitus
24. Later
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Condyles of the mandible continue grow ___than the maxilla
horizontal overlap
infraversion
25. 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
From a frontal view - anterior teeth lean ___
severe overbite
malocclusion
Overbit
26. Horizontal
diastemas
class II division I occlusion
anterior teeth
Overjet is a ___ measurement
27. Widening of the PDL in areas under pressure results due to
Underjet
curve of spee
osteoclast resorption
centric occlusion
28. Mvmt of the mandible in a direction anterior to centric occ
normal curve of spee
Overbit
crestal funneling
protrusive occlusion
29. Patients show evidence or signs and syptoms of occ disease
group function
interdigitation
overbite
pathologic occlusion
30. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
Centric occlusion is also called
splinting
Intercuspation
primary occlusal trauma
31. 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
traumatogenic occlusion
linguoversion
Retrusion
molar relationship
32. #10 & #23
labialversion or buccoversion
causes of open bite
Midline deviation
openbite
33. Most common cause is when the maxilla does not grow in proportion to the mandible
overbite
torsoversion
functional contacts
Crossbite
34. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
Abfraction
distal step
traumatogenic occlusion
tooth mobility
35. Starts closer to premolars
premature curve of spee
Underjet
vertical overlap
splinting
36. Vibrational mvmt of a tooth under occ function
functional occlusion
curve of monson
crossbite
fremitus
37. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made
centric occlusion
inflammation
centric relation
Centric(habitual) occlusion
38. Tongue thrusting; thumb sucking - pacifiers
Centric relation
Dentures
causes of open bite
Open bite
39. Retrognathic profile
class II
If the condyles continue to grow - extreme mesial step will turn into ___
Misalignment of teeth
Acromegaly
40. ____ is not a sign of occl trauma
other names for centric occlusion
occlusal erosion
traumatic overbite
late curve of spee
41. Lateral mvmt results in contact btwn the max and mand canines
canine guidance or protection
other names for centric occlusion
inter-arch
moderate overbite
42. Mb cusp of max 1st molar-buccal groove of mand 1st molar
Nonworking side
molar relationship
Edge to edge bite occurs when
selective grinding or occlusal equilibration
43. Difference between primary and secondary occ trauma
occlusal trauma
linguoversion
bone support
drifted mesial
44. Lateral mvmt results in contacct of all posterior teeth
selective grinding or occlusal equilibration
group function
protrusive occlusion
splinting
45. Laterally
From a frontal view - anterior teeth lean ___
Overbit
canine guidance or protection
Glickman 1963
46. If the mandible moves to the left - the mvmt is known as a left working movement
drifted mesial
left working movement
Dentures
class III
47. 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
underjet
parafunctional contacts
posterior crossbite
Abfraction
48. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
crossbite
causes of primary occlusal trauma
occlusal trauma
Malocclusion
49. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
Intercuspation
Leeway space
physiologic occlusion
normal curve of spee
50. Middle 3rd
Underjet
anterior crossbite
conditions that occur in class III
moderate overbite
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