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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. Muscles that work the jaw; may become sore due to occ trauma
openbite
occlusal trauma
temporalis and masseter
Acromegaly
2. Rotated or twisted; rotated mesial or distal
torsoversion
underjet
class III - classificaiton
gingiva
3. 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
How the diastemas are closed up(including primates spaces)
Midline deviation
class III - classificaiton
other names for centric occlusion
4. Excessive deposition of cementum around the apex - due to excessive occlusal forces
primate spaces
hypercementosis
Unilateral crossbite occurs when
selective grinding or occlusal equilibration
5. Overlap of anterior teeth
Curve of Wilson
vertical overlap
tooth mobility
canine relationship
6. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together
class I
class II - div 2
occlusion
Curve of Spee
7. Starts closer to premolars
functional occlusion
Underjet
premature curve of spee
gingiva
8. Curve of the occlusal plane; from anterior to posterior - increases with age
curve of spee
open bite
group function
end to end
9. Tooth extracted
interdigitation
centric occlusion
bone support
drifted mesial
10. Functional occlusion
fremitus
dynamic occlusion
primate spaces
curve of wilson
11. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift
hawley appliance
conditions that occur in class I malocclusion
intercuspation
curve of monson
12. What is not affected by occ trauma
gingiva
occlusion
centric relation
Leeway space
13. Maximum interlocking of cusp
anterior crossbite
flush terminal plane
inflammation
intercuspation
14. Primary teeth set ___________________ for permanent
occlusion pattern
Centric occlusion is also called
functional occlusion
decrease over time
15. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
premature occlusal contact
labialversion or buccoversion
functional occlusion
primary occlusal trauma
16. 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
Leeway space
Overbit
temporalis and masseter
conditions that occur in class II - div I
17. Relationship of the teeth in opposite arches; static position
centric relation
class II - div 2
curve of spee
centric occlusion
18. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
traumatic overbite
conditions that occur in class I malocclusion
hypercementosis
primary occlusal trauma
19. Crowns tipped lingually - roots tipped laterally
supraversion
centric occlusion
secondary occlusal trauma
Mandibular posterior teeth vertical alignment
20. ____ is not a sign of occl trauma
class II - div 1
excessive occlusal force
occlusal erosion
flush terminal plane
21. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
From a frontal view - anterior teeth lean ___
anterior crossbite
Underjet
Retrusion
22. Lateral mvmt results in contact btwn the max and mand canines
posterior contact
horizontal overlap
Centric(habitual) occlusion
canine guidance or protection
23. Mb cusp of max 1st molar-buccal groove of mand 1st molar
codestructive theory
crestal funneling
bone support
molar relationship
24. Tongue thrusting; thumb sucking - pacifiers
normal overbite
malocclusion
causes of open bite
functional contacts
25. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
occlusal trauma
overbite
conditions that occur in class II - div 2
class II division I occlusion
26. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
functional contacts
Malocclusion
excessive occlusal force
codestructive theory
27. 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
class II - div 1
Glickman 1963
class II division I occlusion
curve of wilson
28. Individual teeth from each arch can be involved in ________________ malocclusion
curve of wilson
inter-arch
vertical overlap
Dentures
29. Below occlusal plane
infraversion
occlusion pattern
Attrition
curve of spee
30. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion
physiologic occlusion
Open bite
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
dynamic occlusion
31. Horizontal
left working movement
linguoversion
Overjet is a ___ measurement
traumatic overbite
32. Mandible moves to the right or left
decrease over time
temporalis and masseter
Lateral excursion
secondary occlusal trauma
33. Maxillary overlap mandibular; whole arch
Retrusion
Condyles of the mandible continue grow ___than the maxilla
Dentures
horizontal overlap
34. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
Premature contact
Bilateral crossbite occurs on...
horizontal overlap
open bite
35. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
causes of primary occlusal trauma
Crossbite
An ideal curve of spee would be
mesial step
36. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
molar relationship
Attrition
dynamic occlusion
Leeway space
37. The permanent molars erupt posterior to the primary teeth and push them all mesially
class I
other names for centric occlusion
How the diastemas are closed up(including primates spaces)
Overbite is a ___ measurement
38. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made
diastemas
infraversion
drifted mesial
centric relation
39. Mesially - Labially
crossbite
underjet
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
class III - classificaiton
40. During protrusive occ - ______ is considered undesirable
posterior contact
Bilateral crossbite occurs on...
Occlusion can be affected by
protrusive occlusion
41. Patients show evidence or signs and syptoms of occ disease
vertical overlap
pathologic occlusion
An ideal curve of spee would be
Abfraction
42. Horizontal distance of anterior teeth in crossbite
underjet
linguoversion
canine guidance or protection
Overbit
43. Laterally
left working movement
From a frontal view - anterior teeth lean ___
primary occlusal trauma
Intercuspation
44. Mvmt of the mandible in a direction anterior to centric occ
labialversion or buccoversion
pathologic occlusion
edge to edge
protrusive occlusion
45. 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
class III
centric occlusion
occlusion pattern
46. Mobility - migration - pain - premature contact - widening of PDL - parafuntional habits - TMJ problems - all result in _________
conditions that occur in class II - div I
centric occlusion
primary occlusal trauma
occlusal trauma
47. Most common cause is when the maxilla does not grow in proportion to the mandible
Crossbite
occlusal erosion
class II - div 2
conditions that occur in class I malocclusion
48. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
curve of wilson
overbite
premature curve of spee
Curve of Spee
49. Above occlusal plane
bone support
conditions that occur in class III
supraversion
end to end
50. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
Occlusion can be affected by
horizontal overlap
curve of wilson
An ideal curve of spee would be