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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)
molar relationship
excessive occlusal force
Curve of Wilson
infraversion
2. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth
premature curve of spee
Retrusion
malocclusion
class II
3. Patients show evidence or signs and syptoms of occ disease
horizontal overlap
dynamic occlusion
pathologic occlusion
Misalignment of teeth
4. Mesially - Labially
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
leeway spaces
open bite
Maxillary posterior teeth vertical alignment
5. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
class III
curve of wilson
causes of primary occlusal trauma
occlusion
6. Habitual - acquired - convenience - intercuspal & static
class III
protrusive occlusion
other names for centric occlusion
physiologic occlusion
7. Difference between primary and secondary occ trauma
excessive occlusal force
Overbite is a ___ measurement
Edge to edge bite occurs when
bone support
8. A continuation of the spee of to extend through the condyle
curve of spee
tooth mobility
Occlusion can be affected by
An ideal curve of spee would be
9. Horizontal distance of anterior teeth in crossbite
An ideal curve of spee would be
underjet
occlusal trauma
occlusion
10. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
class II malocclusion
class II division I occlusion
conditions that occur in class II - div I
bone support
11. #10 & #23
Dentures
openbite
class II
Leeway space
12. After periodontal sugery - mobility will ________
Dentures
Maxillary posterior teeth vertical alignment
decrease over time
tooth mobility
13. Radiographically - the PDL space is wider at the coronal third of the root
crestal funneling
supraversion
intercuspation
premature occlusal contact
14. Anterior; no horizontal overlap
dynamic occlusion
From a frontal view - anterior teeth lean ___
edge to edge
late curve of spee
15. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)
fremitus
pathologic tooth migration
Acromegaly
infraversion
16. Maxillary anterior teeth stick out labially from tongue thrusting
splinting
Protrusion
From a frontal view - anterior teeth lean ___
diastemas
17. Rotated or twisted; rotated mesial or distal
torsoversion
edge to edge
class I
hawley appliance
18. Measurement of horizontal overlap w/ probe
overjet
primate spaces
canine guidance or protection
bone support
19. Survival of the dentition despite its deviation from a preconceived hypothetical normal
physiologic occlusion
inflammation
curve of wilson
canine relationship
20. II (mal)occlusion
excessive occlusal force
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Edge to edge bite occurs when
class II - div 2
21. 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
posterior contact
class III - classificaiton
anterior crossbite
centric relation
22. Starts around the mesial of the 1st molar
Overbit
diastemas
left working movement
normal curve of spee
23. Symptom free dentition that 'survives' or 'adapts' to a deviated occl
From a frontal view - anterior teeth lean ___
canine relationship
physiologic occlusion
Edge to edge bite occurs when
24. Slight buccal inclination of crown - lingual inclination of root
Maxillary posterior teeth vertical alignment
labialversion or buccoversion
osteoclast resorption
Protrusion
25. Middle 3rd
physiologic occlusion
moderate overbite
occlusal trauma
Unilateral crossbite occurs when
26. Lateral mvmt results in contacct of all posterior teeth
Intercuspation
group function
class II - div 1
class III
27. Excessive deposition of cementum around the apex - due to excessive occlusal forces
hypercementosis
pathologic tooth migration
supraversion
Underjet
28. 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
How the diastemas are closed up(including primates spaces)
edge to edge
class I
29. The side to which the mandible moves(chewing side)
Working side
occlusal trauma
class I
temporalis and masseter
30. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus
class II malocclusion
traumatogenic occlusion
If the condyles continue to grow - extreme mesial step will turn into ___
open bite
31. What is not affected by occ trauma
gingiva
Centric(habitual) occlusion
Abfraction
overbite
32. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
Intercuspation
leeway spaces
traumatogenic occlusion
linguoversion
33. Spaces between two teeth
functional occlusion
fremitus
normal curve of spee
diastemas
34. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
From a frontal view - anterior teeth lean ___
Abfraction
dynamic occlusion
anterior crossbite
35. ____ is not a sign of occl trauma
occlusal erosion
dynamic occlusion
functional occlusion
malocclusion
36. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations
group function
excessive occlusal force
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
molar relationship
37. 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
pathologic tooth migration
premature curve of spee
splinting
functional occlusion
38. Primary teeth set ___________________ for permanent
normal overbite
occlusion pattern
Overbit
conditions that occur in class III
39. Maximum touching of max and mand
interdigitation
pathologic tooth migration
curve of wilson
occlusal erosion
40. Crowns tipped lingually - roots tipped laterally
How the diastemas are closed up(including primates spaces)
conditions that occur in class II - div 2
underjet
Mandibular posterior teeth vertical alignment
41. The way you normally bite your teeth together when not chewing
Centric(habitual) occlusion
vertical overlap
occlusal erosion
normal overbite
42. Widening of the PDL in areas under pressure results due to
class II - div 2
Hereditary factors include
If the condyles continue to grow - extreme mesial step will turn into ___
osteoclast resorption
43. Curve of the occlusal plane; from anterior to posterior - increases with age
Working side
moderate overbite
class I
curve of spee
44. Associated with performance; all contacts during function of the oral cavity
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
conditions that occur in class III
functional occlusion
Attrition
45. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
left working movement
Leeway space
canine relationship
other names for centric occlusion
46. Patient forces teeth together in centric occlusion on one side to get a more functional bite and has a crossbite on the other side(the midline of the maxillary anterior teeth does not line up with the midlineof the mandible
class II
occlusion
parafunctional contacts
Unilateral crossbite occurs when
47. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
leeway spaces
Retrusion
functional occlusion
Centric(habitual) occlusion
48. Maximal intercuspation or contact of the max and mand teeth
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Bilateral crossbite occurs on...
centric occlusion
drifted mesial
49. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
severe overbite
crestal funneling
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Curve of Spee
50. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
occlusal trauma
From a frontal view - anterior teeth lean ___
centric occlusion - centric relation - protrusive and lateral movements
centric relation