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Dentistry Occlusion
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Subjects
:
health-sciences
,
dentistry
Instructions:
Answer 50 questions in 15 minutes.
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study here
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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. Cervical 3rd
conditions that occur in class II - div I
physiologic occlusion
conditions that occur in class III
severe overbite
2. Widening of the PDL in areas under pressure results due to
tooth mobility
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
flush terminal plane
osteoclast resorption
3. Later
causes of open bite
molar relationship
Condyles of the mandible continue grow ___than the maxilla
anterior teeth
4. Patients show evidence or signs and syptoms of occ disease
tooth mobility
Abfraction
pathologic occlusion
linguoversion
5. Abnormal contacts; occlusal habits - and neuroses
severe overbite
Overjet
curve of wilson
parafunctional contacts
6. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
vertical overlap
tooth mobility
other names for centric occlusion
posterior contact
7. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract
causes of primary occlusal trauma
Centric relation
Centric occlusion is also called
leeway spaces
8. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth
malocclusion
supraversion
underjet
centric occlusion
9. ____ is not a sign of occl trauma
centric occlusion
primate spaces
occlusal erosion
vertical overlap
10. Rotated or twisted; rotated mesial or distal
canine relationship
mesial step
torsoversion
drifted mesial
11. 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
functional occlusion
premature curve of spee
class III - classificaiton
underjet
12. Teeth are misaligned when biting together
bone support
Crossbite
Malocclusion
openbite
13. Relationship of the teeth in opposite arches; static position
centric occlusion
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 relation
Overbite is a ___ measurement
14. Maxillary anterior teeth stick out labially from tongue thrusting
bone support
excessive occlusal force
Protrusion
supraversion
15. Measurement of horizontal overlap w/ probe
overjet
other names for centric occlusion
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Curve of Spee
16. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
linguoversion
Maxillary posterior teeth vertical alignment
group function
occlusal trauma
17. Vibrational mvmt of a tooth under occ function
pathologic tooth migration
Malocclusion
fremitus
centric relation
18. The side to which the mandible moves(chewing side)
functional contacts
Working side
From a frontal view - anterior teeth lean ___
infraversion
19. Above occlusal plane
supraversion
Occlusion can be affected by
Lateral excursion
underjet
20. Maximum touching of max and mand
tooth mobility
end to end
Overjet
interdigitation
21. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
curve of monson
conditions that occur in class II - div I
An ideal curve of spee would be
If the condyles continue to grow - extreme mesial step will turn into ___
22. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
Intercuspation
occlusion
Attrition
leeway spaces
23. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
Hereditary factors include
anterior crossbite
occlusal trauma
moderate overbite
24. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
centric occlusion
An ideal curve of spee would be
normal curve of spee
Leeway space
25. Starts around the mesial of the 1st molar
Mandibular posterior teeth vertical alignment
occlusal trauma
infraversion
normal curve of spee
26. 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
Hereditary factors include
vertical overlap
curve of spee
Abfraction
27. During protrusive occ - ______ is considered undesirable
Hereditary factors include
posterior contact
selective grinding or occlusal equilibration
centric relation
28. Tooth positioned more facial
splinting
centric relation
overbite
labialversion or buccoversion
29. During selective grinding - occlusion should be adjusted In what four relationships
functional occlusion
intercuspation
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
centric occlusion - centric relation - protrusive and lateral movements
30. Horizontal distance of anterior teeth in crossbite
protrusive occlusion
conditions that occur in class II - div I
class I
underjet
31. Anterior; no horizontal overlap
Dentures
Protrusion
edge to edge
inflammation
32. Selective grinding should always be completed after ______ has been controlled
inflammation
excessive occlusal force
functional occlusion
causes of primary occlusal trauma
33. 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
flush terminal plane
late curve of spee
Retrusion
curve of monson
34. Overlap of anterior teeth
vertical overlap
Leeway space
group function
occlusal trauma
35. Mandibular molars and maxillary molars are even
supraversion
flush terminal plane
Retrusion
causes of open bite
36. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
Mandibular posterior teeth vertical alignment
traumatogenic occlusion
secondary occlusal trauma
underjet
37. Need tooth to tooth contact on both working and non working sides to func effectively
Centric(habitual) occlusion
Dentures
left working movement
curve of monson
38. The permanent molars erupt posterior to the primary teeth and push them all mesially
curve of monson
primary occlusal trauma
How the diastemas are closed up(including primates spaces)
interdigitation
39. Horizontal
fremitus
Overjet is a ___ measurement
vertical overlap
causes of open bite
40. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
causes of open bite
malocclusion
Misalignment of teeth
causes of primary occlusal trauma
41. A continuation of the spee of to extend through the condyle
An ideal curve of spee would be
Leeway space
anterior crossbite
Mandibular posterior teeth vertical alignment
42. Anterior or posterior; bilateral or unitlateral - anterior more common
functional contacts
diastemas
open bite
crestal funneling
43. Contact between maxillary incisors does not line up with contact of mandibular incisors
Midline deviation
occlusion
canine guidance or protection
causes of primary occlusal trauma
44. Individual teeth from each arch can be involved in ________________ malocclusion
splinting
inter-arch
Mandibular posterior teeth vertical alignment
anterior teeth
45. Relationship of the arches bone to bone;
fremitus
non working or balancing side
decrease over time
centric relation
46. Radiographically - the PDL space is wider at the coronal third of the root
crestal funneling
Bilateral crossbite occurs on...
centric occlusion
Malocclusion
47. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
Overjet
codestructive theory
Glickman 1963
If the condyles continue to grow - extreme mesial step will turn into ___
48. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
class III
Centric(habitual) occlusion
Curve of Spee
functional contacts
49. Cusps of maxillary teeth directly over cusps of mandibular teeth
Open bite
class III
class II
Edge to edge bite occurs when
50. Middle 3rd
primate spaces
moderate overbite
fremitus
class II
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