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Test your basic knowledge |
Dentistry Occlusion
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Subjects
:
health-sciences
,
dentistry
Instructions:
Answer 50 questions in 15 minutes.
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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. Survival of the dentition despite its deviation from a preconceived hypothetical normal
Bilateral crossbite occurs on...
Condyles of the mandible continue grow ___than the maxilla
physiologic occlusion
edge to edge
2. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
occlusal erosion
end to end
tooth mobility
drifted mesial
3. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors
conditions that occur in class II - div 2
causes of primary occlusal trauma
posterior contact
conditions that occur in class III
4. 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
Edge to edge bite occurs when
openbite
fremitus
5. Mandibular molars more mesial than maxillary molars (most children)
mesial step
drifted mesial
secondary occlusal trauma
interdigitation
6. Abnormal contacts; occlusal habits - and neuroses
class III
anterior crossbite
gingiva
parafunctional contacts
7. Usually indicative of moderate to sever perio and secondary occ trauma
posterior contact
centric relation
normal overbite
pathologic tooth migration
8. Mobility - migration - pain - premature contact - widening of PDL - parafuntional habits - TMJ problems - all result in _________
class II - div 1
occlusal trauma
crestal funneling
edge to edge
9. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
traumatic overbite
Occlusion can be affected by
curve of wilson
Overjet is a ___ measurement
10. If the mandible moves to the left - the mvmt is known as a left working movement
Crossbite
Curve of Wilson
primary occlusal trauma
left working movement
11. The way you normally bite your teeth together when not chewing
hypercementosis
pathologic occlusion
Overbite is a ___ measurement
Centric(habitual) occlusion
12. Tooth positioned more lingual
overjet
primate spaces
linguoversion
Midline deviation
13. Mandibular molars more distal than maxillary molars
distal step
Intercuspation
end to end
Protrusion
14. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
primate spaces
conditions that occur in class II - div I
causes of open bite
canine relationship
15. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth
openbite
tooth mobility
malocclusion
From a frontal view - anterior teeth lean ___
16. Mb cusp of max 1st molar-buccal groove of mand 1st molar
class I
molar relationship
dynamic occlusion
secondary occlusal trauma
17. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)
Acromegaly
functional occlusion
Centric occlusion is also called
premature curve of spee
18. 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
labialversion or buccoversion
underjet
Retrusion
normal curve of spee
19. Starts around the mesial of the 1st molar
normal curve of spee
If the condyles continue to grow - extreme mesial step will turn into ___
occlusal trauma
horizontal overlap
20. Mandible moves to the right or left
Centric relation
Intercuspation
Lateral excursion
canine guidance or protection
21. Anterior; no horizontal overlap
edge to edge
temporalis and masseter
centric relation
Intercuspation
22. Most common cause is when the maxilla does not grow in proportion to the mandible
primary occlusal trauma
flush terminal plane
Protrusion
Crossbite
23. Functional occlusion
dynamic occlusion
tooth mobility
torsoversion
vertical overlap
24. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
How the diastemas are closed up(including primates spaces)
Hereditary factors include
canine guidance or protection
class I
25. Maxillary anterior teeth stick out labially from tongue thrusting
temporalis and masseter
Open bite
Protrusion
Nonworking side
26. During selective grinding - occlusion should be adjusted In what four relationships
mesial step
Abfraction
class II
centric occlusion - centric relation - protrusive and lateral movements
27. Starts closer to premolars
traumatic overbite
Overbite is a ___ measurement
causes of open bite
premature curve of spee
28. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
excessive occlusal force
leeway spaces
mesial step
Bilateral crossbite occurs on...
29. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
intercuspation
anterior crossbite
interdigitation
traumatic overbite
30. Later
mesial step
Condyles of the mandible continue grow ___than the maxilla
non working or balancing side
decrease over time
31. Maxillary - Mandibular - Facial
moderate overbite
malocclusion
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
open bite
32. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
Working side
occlusal trauma
Centric occlusion is also called
Overbite is a ___ measurement
33. Rotated or twisted; rotated mesial or distal
Curve of Spee
other names for centric occlusion
torsoversion
late curve of spee
34. Individual teeth from each arch can be involved in ________________ malocclusion
class II division I occlusion
fremitus
inter-arch
class II malocclusion
35. Vibrational mvmt of a tooth under occ function
occlusal trauma
fremitus
How the diastemas are closed up(including primates spaces)
Working side
36. When no teeth are contacting on this side
Overjet
linguoversion
canine relationship
Nonworking side
37. Cusps of maxillary teeth directly over cusps of mandibular teeth
centric relation
inflammation
open bite
Edge to edge bite occurs when
38. Anterior or posterior; bilateral or unitlateral - anterior more common
open bite
functional occlusion
crestal funneling
Unilateral crossbite occurs when
39. Lateral mvmt results in contacct of all posterior teeth
group function
centric occlusion - centric relation - protrusive and lateral movements
normal curve of spee
Maxillary posterior teeth vertical alignment
40. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
premature occlusal contact
Centric occlusion is also called
centric occlusion - centric relation - protrusive and lateral movements
41. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
causes of primary occlusal trauma
end to end
Attrition
vertical overlap
42. Teeth that are in func when the mandible moves in lateral or protrusive excursions or mvmts
overjet
interdigitation
functional occlusion
conditions that occur in class I malocclusion
43. Excessive occ force with adequate bone support =
primary occlusal trauma
anterior teeth
centric occlusion - centric relation - protrusive and lateral movements
conditions that occur in class II - div I
44. Guidance for protrusive occ should be on the
Centric relation
premature occlusal contact
anterior teeth
bone support
45. Maximal intercuspation or contact of the max and mand teeth
Open bite
centric occlusion
Misalignment of teeth
hypercementosis
46. 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
Overjet
conditions that occur in class III
late curve of spee
premature curve of spee
47. Tongue thrust or thumb sucking can cause
conditions that occur in class I malocclusion
If the condyles continue to grow - extreme mesial step will turn into ___
posterior crossbite
class II division I occlusion
48. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion
Open bite
infraversion
distal step
functional occlusion
49. II (mal)occlusion
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
If the condyles continue to grow - extreme mesial step will turn into ___
horizontal overlap
occlusal trauma
50. Occlusal guard =
occlusion
hawley appliance
Overjet is a ___ measurement
canine relationship
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