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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. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
selective grinding or occlusal equilibration
posterior contact
overjet
decrease over time
2. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Malocclusion
crossbite
Intercuspation
3. Retrognathic profile
left working movement
class II
physiologic occlusion
distal step
4. Most common cause is when the maxilla does not grow in proportion to the mandible
temporalis and masseter
Crossbite
canine relationship
Leeway space
5. Curved alignment of the occlusal plane when looking from a posterior view(right to left)
parafunctional contacts
occlusal trauma
Curve of Wilson
normal curve of spee
6. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
torsoversion
anterior crossbite
Hereditary factors include
anterior teeth
7. Maximum touching of max and mand
physiologic occlusion
codestructive theory
interdigitation
diastemas
8. Mesially - Labially
Nonworking side
From a frontal view - anterior teeth lean ___
Mandibular posterior teeth vertical alignment
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
9. Maxillary - Mandibular - Facial
Protrusion
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
centric occlusion
curve of monson
10. 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
Lateral excursion
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Glickman 1963
11. 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
splinting
curve of wilson
group function
Curve of Wilson
12. Vertical overlapping
Attrition
linguoversion
overbite
molar relationship
13. Abnormal contacts; occlusal habits - and neuroses
occlusal trauma
causes of primary occlusal trauma
parafunctional contacts
protrusive occlusion
14. Mandibular molars and maxillary molars are even
flush terminal plane
Hereditary factors include
traumatic overbite
non working or balancing side
15. 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
pathologic tooth migration
class II - div 2
Overbit
normal curve of spee
16. Vertical
torsoversion
Overbite is a ___ measurement
late curve of spee
openbite
17. Teeth that are in func when the mandible moves in lateral or protrusive excursions or mvmts
Malocclusion
functional occlusion
Centric relation
vertical overlap
18. Relationship of teeth in which the incisal ridges or buccal cusp ridges of the maxillary anterior teeth extend facially to the incisal ridges/cusps of the mandibular teeth when the teeth are in centric occlusion relationship
Retrusion
Overjet
underjet
parafunctional contacts
19. Difference between primary and secondary occ trauma
bone support
posterior contact
flush terminal plane
causes of primary occlusal trauma
20. Lateral mvmt results in contacct of all posterior teeth
overjet
Protrusion
group function
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
21. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
flush terminal plane
Leeway space
curve of monson
traumatogenic occlusion
22. Individual teeth from each arch can be involved in ________________ malocclusion
anterior crossbite
How the diastemas are closed up(including primates spaces)
osteoclast resorption
inter-arch
23. The permanent molars erupt posterior to the primary teeth and push them all mesially
How the diastemas are closed up(including primates spaces)
normal overbite
Nonworking side
temporalis and masseter
24. Mandible moves to the right or left
premature occlusal contact
moderate overbite
Lateral excursion
conditions that occur in class II - div 2
25. Posterior; no horizontal overlap
conditions that occur in class I malocclusion
Intercuspation
Centric relation
end to end
26. 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
leeway spaces
Retrusion
From a frontal view - anterior teeth lean ___
occlusion
27. #7 - 26 - 27
Abfraction
Premature contact
Condyles of the mandible continue grow ___than the maxilla
crossbite
28. Maxillary-between canines and laterals - mandibular-between canines and 1st molars
primate spaces
dynamic occlusion
Maxillary posterior teeth vertical alignment
Centric relation
29. Mvmt of the mandible in a direction anterior to centric occ
class II - div 2
Working side
canine guidance or protection
protrusive occlusion
30. 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
Premature contact
If the condyles continue to grow - extreme mesial step will turn into ___
Underjet
31. Cusps of maxillary teeth directly over cusps of mandibular teeth
Edge to edge bite occurs when
Occlusion can be affected by
occlusal erosion
Abfraction
32. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
Leeway space
class III - classificaiton
curve of wilson
secondary occlusal trauma
33. Curve spee & wilson - 3-d - not proven
Centric relation
Protrusion
curve of monson
Curve of Spee
34. Symptom free dentition that 'survives' or 'adapts' to a deviated occl
curve of monson
physiologic occlusion
diastemas
supraversion
35. During selective grinding - occlusion should be adjusted In what four relationships
infraversion
canine guidance or protection
centric occlusion - centric relation - protrusive and lateral movements
other names for centric occlusion
36. Both sides
open bite
Hereditary factors include
inter-arch
Bilateral crossbite occurs on...
37. The side to which the mandible moves(chewing side)
canine relationship
Dentures
Mandibular posterior teeth vertical alignment
Working side
38. Max canine occludes with mand. canine and mand. 1st premolar.
Centric relation
Bilateral crossbite occurs on...
open bite
canine relationship
39. Selective grinding should always be completed after ______ has been controlled
Curve of Wilson
inflammation
late curve of spee
traumatogenic occlusion
40. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
temporalis and masseter
Unilateral crossbite occurs when
tooth mobility
Acromegaly
41. Excessive occ force with adequate bone support =
primary occlusal trauma
physiologic occlusion
centric relation
physiologic occlusion
42. Later
Occlusion can be affected by
Overbit
premature occlusal contact
Condyles of the mandible continue grow ___than the maxilla
43. Horizontal
Overjet is a ___ measurement
class II - div 2
excessive occlusal force
mesial step
44. ____ is not a sign of occl trauma
openbite
class III - classificaiton
functional contacts
occlusal erosion
45. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
centric occlusion - centric relation - protrusive and lateral movements
curve of spee
codestructive theory
linguoversion
46. Middle 3rd
vertical overlap
moderate overbite
physiologic occlusion
Mandibular posterior teeth vertical alignment
47. Maxillary overlap mandibular; whole arch
premature curve of spee
splinting
primate spaces
horizontal overlap
48. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations
Glickman 1963
excessive occlusal force
diastemas
Hereditary factors include
49. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together
occlusion
centric relation
crossbite
crestal funneling
50. Primary teeth set ___________________ for permanent
codestructive theory
end to end
flush terminal plane
occlusion pattern