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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. Curved alignment of the occlusal plane when looking from a posterior view(right to left)
flush terminal plane
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Curve of Wilson
causes of open bite
2. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus
selective grinding or occlusal equilibration
traumatogenic occlusion
causes of open bite
osteoclast resorption
3. Maximum touching of max and mand
edge to edge
How the diastemas are closed up(including primates spaces)
interdigitation
class I
4. During a left working movement - the right side is known as the
curve of wilson
inter-arch
Acromegaly
non working or balancing side
5. Mandible moves to the right or left
underjet
occlusal trauma
curve of spee
Lateral excursion
6. Teeth that are in func when the mandible moves in lateral or protrusive excursions or mvmts
conditions that occur in class II - div I
Hereditary factors include
functional occlusion
class II malocclusion
7. 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
Abfraction
curve of monson
excessive occlusal force
normal overbite
8. Starts around the mesial of the 1st molar
posterior contact
centric relation
normal curve of spee
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
9. Associated with performance; all contacts during function of the oral cavity
class II - div 2
mesial step
functional occlusion
Edge to edge bite occurs when
10. Abnormal contacts; occlusal habits - and neuroses
centric occlusion - centric relation - protrusive and lateral movements
codestructive theory
parafunctional contacts
Crossbite
11. Excessive deposition of cementum around the apex - due to excessive occlusal forces
centric relation
hypercementosis
functional occlusion
Condyles of the mandible continue grow ___than the maxilla
12. Primary teeth set ___________________ for permanent
interdigitation
Lateral excursion
occlusion pattern
class II - div 2
13. Mesially - Labially
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
conditions that occur in class III
drifted mesial
moderate overbite
14. Usually indicative of moderate to sever perio and secondary occ trauma
protrusive occlusion
Curve of Wilson
curve of wilson
pathologic tooth migration
15. Retrognathic profile
vertical overlap
excessive occlusal force
bone support
class II
16. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
inter-arch
occlusal trauma
class II - div 2
class II division I occlusion
17. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
anterior crossbite
Intercuspation
Underjet
posterior crossbite
18. Mandibular molars more distal than maxillary molars
selective grinding or occlusal equilibration
Glickman 1963
distal step
Protrusion
19. II (mal)occlusion
temporalis and masseter
traumatic overbite
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
centric relation
20. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together
Overbite is a ___ measurement
occlusion
codestructive theory
Crossbite
21. Excessive occ force with adequate bone support =
Malocclusion
curve of wilson
pathologic tooth migration
primary occlusal trauma
22. Both sides
premature curve of spee
Midline deviation
bone support
Bilateral crossbite occurs on...
23. 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
physiologic occlusion
splinting
canine guidance or protection
Overbite is a ___ measurement
24. Overlap of anterior teeth
physiologic occlusion
splinting
functional contacts
vertical overlap
25. After periodontal sugery - mobility will ________
centric occlusion
An ideal curve of spee would be
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
decrease over time
26. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
conditions that occur in class II - div 2
premature curve of spee
conditions that occur in class I malocclusion
pathologic occlusion
27. Crowns tipped lingually - roots tipped laterally
Mandibular posterior teeth vertical alignment
splinting
underjet
interdigitation
28. Mb cusp of max 1st molar-buccal groove of mand 1st molar
anterior crossbite
molar relationship
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
class I
29. Maxillary - Mandibular - Facial
Centric relation
Retrusion
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
canine relationship
30. Starts closer to premolars
curve of spee
torsoversion
premature curve of spee
codestructive theory
31. Vibrational mvmt of a tooth under occ function
Mandibular posterior teeth vertical alignment
centric occlusion - centric relation - protrusive and lateral movements
occlusion
fremitus
32. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
centric occlusion
Curve of Spee
decrease over time
edge to edge
33. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
parafunctional contacts
labialversion or buccoversion
open bite
traumatic overbite
34. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
late curve of spee
premature curve of spee
causes of primary occlusal trauma
molar relationship
35. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
primate spaces
interdigitation
leeway spaces
Centric(habitual) occlusion
36. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors
conditions that occur in class III
supraversion
underjet
Underjet
37. The permanent molars erupt posterior to the primary teeth and push them all mesially
posterior contact
How the diastemas are closed up(including primates spaces)
If the condyles continue to grow - extreme mesial step will turn into ___
Abfraction
38. Horizontal
bone support
If the condyles continue to grow - extreme mesial step will turn into ___
Overjet is a ___ measurement
severe overbite
39. Curve spee & wilson - 3-d - not proven
curve of monson
causes of open bite
malocclusion
Lateral excursion
40. Maximal intercuspation or contact of the max and mand teeth
Unilateral crossbite occurs when
bone support
centric occlusion
Maxillary posterior teeth vertical alignment
41. Functional occlusion
Curve of Spee
edge to edge
dynamic occlusion
selective grinding or occlusal equilibration
42. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
class II malocclusion
Curve of Spee
Hereditary factors include
Abfraction
43. Vertical
supraversion
Overbite is a ___ measurement
late curve of spee
Centric relation
44. Maxillary anterior teeth stick out labially from tongue thrusting
inflammation
Centric occlusion is also called
fremitus
Protrusion
45. The side to which the mandible moves(chewing side)
Centric occlusion is also called
leeway spaces
Condyles of the mandible continue grow ___than the maxilla
Working side
46. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)
secondary occlusal trauma
Curve of Wilson
functional contacts
Misalignment of teeth
47. When no teeth are contacting on this side
Nonworking side
Premature contact
interdigitation
inter-arch
48. Contact between maxillary incisors does not line up with contact of mandibular incisors
conditions that occur in class I malocclusion
Midline deviation
Crossbite
tooth mobility
49. Mandibular molars and maxillary molars are even
flush terminal plane
pathologic occlusion
overjet
inter-arch
50. Incisal 3rd
secondary occlusal trauma
normal overbite
excessive occlusal force
horizontal overlap
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