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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. Laterally
normal curve of spee
From a frontal view - anterior teeth lean ___
fremitus
Underjet
2. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth
Leeway space
Abfraction
overjet
malocclusion
3. Introduced the concept of codestruction
Glickman 1963
class III
bone support
premature curve of spee
4. Occlusal guard =
hawley appliance
Protrusion
edge to edge
centric occlusion - centric relation - protrusive and lateral movements
5. Tongue thrusting; thumb sucking - pacifiers
drifted mesial
Unilateral crossbite occurs when
causes of open bite
Overbit
6. Symptom free dentition that 'survives' or 'adapts' to a deviated occl
Open bite
Nonworking side
physiologic occlusion
canine relationship
7. 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
dynamic occlusion
Nonworking side
Condyles of the mandible continue grow ___than the maxilla
Unilateral crossbite occurs when
8. Above occlusal plane
supraversion
class I
Overbite is a ___ measurement
dynamic occlusion
9. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
posterior contact
decrease over time
premature occlusal contact
severe overbite
10. Maximum interlocking of cusp
leeway spaces
Maxillary posterior teeth vertical alignment
intercuspation
open bite
11. Difference between primary and secondary occ trauma
conditions that occur in class II - div I
mesial step
An ideal curve of spee would be
bone support
12. Maxillary anterior teeth stick out labially from tongue thrusting
Protrusion
curve of spee
anterior crossbite
intercuspation
13. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract
Abfraction
Open bite
openbite
Centric relation
14. Overlap of anterior teeth
vertical overlap
group function
Underjet
open bite
15. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
group function
Leeway space
decrease over time
Acromegaly
16. Need tooth to tooth contact on both working and non working sides to func effectively
physiologic occlusion
curve of monson
Dentures
Acromegaly
17. Prognathic profile
class III
late curve of spee
parafunctional contacts
Working side
18. Normal contacts between max. and mand. teeth; momentary contacts
overbite
pathologic tooth migration
functional contacts
non working or balancing side
19. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
pathologic tooth migration
Acromegaly
conditions that occur in class II - div 2
curve of spee
20. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus
group function
traumatogenic occlusion
protrusive occlusion
class II malocclusion
21. 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
traumatogenic occlusion
labialversion or buccoversion
Retrusion
Abfraction
22. Excessive deposition of cementum around the apex - due to excessive occlusal forces
protrusive occlusion
hypercementosis
occlusal trauma
Crossbite
23. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
premature occlusal contact
premature curve of spee
conditions that occur in class II - div I
inflammation
24. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion
bone support
Open bite
inter-arch
centric occlusion
25. Class III (mal)occlusion of permanent teeth
normal overbite
Working side
temporalis and masseter
If the condyles continue to grow - extreme mesial step will turn into ___
26. Guidance for protrusive occ should be on the
centric occlusion - centric relation - protrusive and lateral movements
functional contacts
curve of monson
anterior teeth
27. Patients show evidence or signs and syptoms of occ disease
selective grinding or occlusal equilibration
Centric(habitual) occlusion
pathologic occlusion
temporalis and masseter
28. Teeth are misaligned when biting together
hypercementosis
Malocclusion
end to end
conditions that occur in class I malocclusion
29. ____ is not a sign of occl trauma
functional occlusion
class II division I occlusion
occlusal erosion
overjet
30. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
Condyles of the mandible continue grow ___than the maxilla
Intercuspation
class II division I occlusion
causes of primary occlusal trauma
31. The permanent molars erupt posterior to the primary teeth and push them all mesially
Edge to edge bite occurs when
pathologic occlusion
How the diastemas are closed up(including primates spaces)
Misalignment of teeth
32. Cusps of maxillary teeth directly over cusps of mandibular teeth
inter-arch
Edge to edge bite occurs when
causes of primary occlusal trauma
primate spaces
33. The side to which the mandible moves(chewing side)
Overbite is a ___ measurement
Glickman 1963
Working side
crossbite
34. Functional occlusion
dynamic occlusion
Acromegaly
physiologic occlusion
Crossbite
35. Buck teeth are common and are considered
centric occlusion - centric relation - protrusive and lateral movements
overbite
class II malocclusion
interdigitation
36. Most common cause is when the maxilla does not grow in proportion to the mandible
Premature contact
Curve of Spee
Crossbite
splinting
37. Maxillary incisors are are lingual to mandibular incisors
primate spaces
horizontal overlap
Underjet
Hereditary factors include
38. Vibrational mvmt of a tooth under occ function
divisions of parafunctional contacts
Bilateral crossbite occurs on...
fremitus
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
39. Maximum touching of max and mand
posterior contact
interdigitation
canine guidance or protection
functional contacts
40. Anterior or posterior; bilateral or unitlateral - anterior more common
overbite
open bite
causes of primary occlusal trauma
normal overbite
41. Usually indicative of moderate to sever perio and secondary occ trauma
pathologic tooth migration
temporalis and masseter
conditions that occur in class II - div 2
group function
42. Associated with performance; all contacts during function of the oral cavity
functional occlusion
causes of primary occlusal trauma
Midline deviation
Acromegaly
43. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
severe overbite
selective grinding or occlusal equilibration
infraversion
traumatogenic occlusion
44. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
posterior crossbite
traumatic overbite
Condyles of the mandible continue grow ___than the maxilla
severe overbite
45. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors
Overbite is a ___ measurement
splinting
conditions that occur in class III
causes of open bite
46. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
Overbite is a ___ measurement
posterior crossbite
overjet
causes of primary occlusal trauma
47. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
curve of spee
late curve of spee
mesial step
Occlusion can be affected by
48. Horizontal
functional occlusion
other names for centric occlusion
Overjet is a ___ measurement
class II division I occlusion
49. Tooth extracted
centric occlusion
drifted mesial
leeway spaces
protrusive occlusion
50. During protrusive occ - ______ is considered undesirable
posterior contact
Dentures
Crossbite
Misalignment of teeth