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Dentistry Occlusion
Start Test
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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
.
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. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
Working side
Premature contact
Condyles of the mandible continue grow ___than the maxilla
flush terminal plane
2. Mandible moves to the right or left
anterior crossbite
Curve of Spee
posterior contact
Lateral excursion
3. Maxillary incisors are are lingual to mandibular incisors
Underjet
Malocclusion
Attrition
premature curve of spee
4. Relationship of the teeth in opposite arches; static position
centric occlusion
class II
An ideal curve of spee would be
Condyles of the mandible continue grow ___than the maxilla
5. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
mesial step
selective grinding or occlusal equilibration
Overbite is a ___ measurement
If the condyles continue to grow - extreme mesial step will turn into ___
6. Maxillary-between canines and laterals - mandibular-between canines and 1st molars
posterior contact
torsoversion
centric occlusion - centric relation - protrusive and lateral movements
primate spaces
7. Measurement of horizontal overlap w/ probe
Bilateral crossbite occurs on...
distal step
overjet
non working or balancing side
8. Anterior or posterior; bilateral or unitlateral - anterior more common
non working or balancing side
decrease over time
open bite
Abfraction
9. Mandibular molars more mesial than maxillary molars (most children)
pathologic tooth migration
distal step
centric occlusion
mesial step
10. Most common cause is when the maxilla does not grow in proportion to the mandible
underjet
conditions that occur in class II - div I
late curve of spee
Crossbite
11. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together
class II malocclusion
Bilateral crossbite occurs on...
occlusion
distal step
12. Tongue thrust or thumb sucking can cause
interdigitation
posterior crossbite
supraversion
class II division I occlusion
13. Maximum touching of max and mand
conditions that occur in class II - div 2
interdigitation
supraversion
excessive occlusal force
14. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
occlusion
Hereditary factors include
diastemas
curve of spee
15. Retrognathic profile -buccal groove of mand. 1st molar-distal to mb cusp of 1st max.molar -distal of mand canine distal to mesial of max canine - tendency towards class II
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
divisions of parafunctional contacts
functional occlusion
class II - div 1
16. #10 & #23
physiologic occlusion
openbite
curve of wilson
Overbite is a ___ measurement
17. Posterior; no horizontal overlap
end to end
class II malocclusion
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
Maxillary posterior teeth vertical alignment
18. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
premature occlusal contact
linguoversion
torsoversion
selective grinding or occlusal equilibration
19. Excessive occ force with adequate bone support =
intercuspation
primate spaces
primary occlusal trauma
crestal funneling
20. Guidance for protrusive occ should be on the
occlusion
anterior teeth
Curve of Spee
Underjet
21. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations
diastemas
excessive occlusal force
non working or balancing side
end to end
22. The permanent molars erupt posterior to the primary teeth and push them all mesially
Misalignment of teeth
group function
dynamic occlusion
How the diastemas are closed up(including primates spaces)
23. Vibrational mvmt of a tooth under occ function
molar relationship
Overjet is a ___ measurement
class I
fremitus
24. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
functional contacts
curve of wilson
Edge to edge bite occurs when
Overjet is a ___ measurement
25. Difference between primary and secondary occ trauma
functional occlusion
Curve of Wilson
canine relationship
bone support
26. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
codestructive theory
distal step
overbite
Hereditary factors include
27. Both sides
Bilateral crossbite occurs on...
underjet
bone support
centric relation
28. Primary teeth set ___________________ for permanent
underjet
class III
edge to edge
occlusion pattern
29. Teeth are misaligned when biting together
Overbit
Malocclusion
Bilateral crossbite occurs on...
decrease over time
30. Slight buccal inclination of crown - lingual inclination of root
Midline deviation
osteoclast resorption
Maxillary posterior teeth vertical alignment
overjet
31. Maximum interlocking of cusp
excessive occlusal force
intercuspation
dynamic occlusion
class I
32. Relationship of the arches bone to bone;
other names for centric occlusion
centric relation
horizontal overlap
overjet
33. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact
centric occlusion
splinting
divisions of parafunctional contacts
physiologic occlusion
34. Vertical
Overbite is a ___ measurement
An ideal curve of spee would be
conditions that occur in class I malocclusion
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
35. During protrusive occ - ______ is considered undesirable
labialversion or buccoversion
posterior contact
canine guidance or protection
normal curve of spee
36. II (mal)occlusion
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
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
supraversion
moderate overbite
37. Later
severe overbite
Centric(habitual) occlusion
pathologic tooth migration
Condyles of the mandible continue grow ___than the maxilla
38. Usually indicative of moderate to sever perio and secondary occ trauma
secondary occlusal trauma
diastemas
pathologic tooth migration
causes of open bite
39. 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 ___
causes of open bite
Overbit
normal curve of spee
40. Patients show evidence or signs and syptoms of occ disease
Unilateral crossbite occurs when
pathologic occlusion
vertical overlap
Attrition
41. Starts around the mesial of the 1st molar
group function
Open bite
normal curve of spee
class II malocclusion
42. Retrognathic profile; buccal groove of mand 1st molar-distal to mb cusp of max 1st; distal of mand. canine distal to mesial to max caniine - tendency toward class II
class II - div 2
Overjet is a ___ measurement
If the condyles continue to grow - extreme mesial step will turn into ___
Protrusion
43. Maximal intercuspation or contact of the max and mand teeth
centric occlusion
leeway spaces
Intercuspation
excessive occlusal force
44. Mesognathic profile
inter-arch
Overbite is a ___ measurement
class I
causes of open bite
45. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
traumatic overbite
interdigitation
malocclusion
osteoclast resorption
46. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus
class II - div 1
traumatogenic occlusion
Midline deviation
occlusal trauma
47. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
conditions that occur in class II - div I
Hereditary factors include
Overbite is a ___ measurement
Misalignment of teeth
48. Horizontal
Overjet is a ___ measurement
overbite
pathologic tooth migration
curve of wilson
49. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth
Underjet
malocclusion
severe overbite
moderate overbite
50. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
protrusive occlusion
curve of spee
Intercuspation
Lateral excursion
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