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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
.
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. During selective grinding - occlusion should be adjusted In what four relationships
class II division I occlusion
functional occlusion
centric occlusion - centric relation - protrusive and lateral movements
occlusion pattern
2. Mvmt of the mandible in a direction anterior to centric occ
divisions of parafunctional contacts
infraversion
conditions that occur in class III
protrusive occlusion
3. Functional occlusion
physiologic occlusion
Abfraction
From a frontal view - anterior teeth lean ___
dynamic occlusion
4. Malocclusion cause excessive incisal or occlusal wear(attrition); teeth continue to erupt in order to occlude with teeth in the opposite arch & roots become exposed
Attrition
occlusal trauma
linguoversion
Abfraction
5. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus
traumatogenic occlusion
posterior contact
traumatic overbite
class II malocclusion
6. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made
temporalis and masseter
Lateral excursion
centric relation
primary occlusal trauma
7. Starts around the mesial of the 1st molar
From a frontal view - anterior teeth lean ___
posterior crossbite
normal curve of spee
physiologic occlusion
8. Starts closer to the posterior of the 1st molar
Malocclusion
late curve of spee
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
Leeway space
9. Vertical overlapping
drifted mesial
physiologic occlusion
overbite
diastemas
10. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors
centric relation
conditions that occur in class I malocclusion
Overbite is a ___ measurement
conditions that occur in class III
11. Cervical 3rd
Bilateral crossbite occurs on...
severe overbite
Acromegaly
Retrusion
12. Crowns tipped lingually - roots tipped laterally
Midline deviation
Underjet
Mandibular posterior teeth vertical alignment
Abfraction
13. Excessive occ force with adequate bone support =
primary occlusal trauma
Underjet
class II malocclusion
labialversion or buccoversion
14. Teeth that are in func when the mandible moves in lateral or protrusive excursions or mvmts
canine guidance or protection
parafunctional contacts
occlusal trauma
functional occlusion
15. Mandibular molars more distal than maxillary molars
distal step
infraversion
class II division I occlusion
Midline deviation
16. Retrognathic profile
osteoclast resorption
class II
Maxillary posterior teeth vertical alignment
Working side
17. Below occlusal plane
functional contacts
infraversion
class II
primary occlusal trauma
18. Teeth are misaligned when biting together
molar relationship
osteoclast resorption
Malocclusion
overbite
19. II (mal)occlusion
fremitus
Crossbite
Occlusion can be affected by
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
20. Abnormal contacts; occlusal habits - and neuroses
anterior teeth
end to end
gingiva
parafunctional contacts
21. Occlusal guard =
mesial step
Malocclusion
occlusal erosion
hawley appliance
22. The side to which the mandible moves(chewing side)
Overjet
Working side
occlusion
Overjet is a ___ measurement
23. When no teeth are contacting on this side
From a frontal view - anterior teeth lean ___
decrease over time
premature curve of spee
Nonworking side
24. Mandibular molars more mesial than maxillary molars (most children)
Occlusion can be affected by
distal step
excessive occlusal force
mesial step
25. Anterior or posterior; bilateral or unitlateral - anterior more common
splinting
centric occlusion
open bite
curve of wilson
26. Maximum touching of max and mand
Misalignment of teeth
interdigitation
severe overbite
fremitus
27. Retrognathic profile; buccal groove of mand 1st molar-distal to mb cusp of max 1st; distal of mand. canine distal to mesial to max caniine - tendency toward class II
class II - div 2
occlusion
Lateral excursion
interdigitation
28. Maxillary overlap mandibular; whole arch
Curve of Spee
horizontal overlap
posterior contact
hypercementosis
29. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
occlusal trauma
tooth mobility
gingiva
pathologic occlusion
30. Middle 3rd
Overbite is a ___ measurement
molar relationship
moderate overbite
linguoversion
31. Anterior; no horizontal overlap
horizontal overlap
edge to edge
Underjet
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
32. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
Unilateral crossbite occurs when
Abfraction
Misalignment of teeth
conditions that occur in class II - div I
33. Mesially - Labially
anterior teeth
hypercementosis
posterior crossbite
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
34. 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
infraversion
Mandibular posterior teeth vertical alignment
dynamic occlusion
35. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)
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
inflammation
underjet
Misalignment of teeth
36. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth
Centric occlusion is also called
From a frontal view - anterior teeth lean ___
bone support
malocclusion
37. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
open bite
occlusal trauma
Overjet
Attrition
38. Mb cusp of max 1st molar-buccal groove of mand 1st molar
molar relationship
Working side
posterior crossbite
openbite
39. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
conditions that occur in class II - div I
If the condyles continue to grow - extreme mesial step will turn into ___
secondary occlusal trauma
normal curve of spee
40. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
canine relationship
Occlusion can be affected by
decrease over time
41. What is not affected by occ trauma
physiologic occlusion
labialversion or buccoversion
gingiva
traumatic overbite
42. Incisal 3rd
normal overbite
Underjet
interdigitation
Attrition
43. Retrognathic profile -buccal groove of mand. 1st molar-distal to mb cusp of 1st max.molar -distal of mand canine distal to mesial of max canine - tendency towards class II
class II - div 1
Centric relation
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
underjet
44. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
moderate overbite
codestructive theory
Protrusion
Premature contact
45. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract
Centric relation
end to end
class III
Abfraction
46. Most common cause is when the maxilla does not grow in proportion to the mandible
Curve of Wilson
conditions that occur in class III
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
Crossbite
47. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
hawley appliance
premature curve of spee
curve of wilson
secondary occlusal trauma
48. Both sides
Lateral excursion
occlusal trauma
protrusive occlusion
Bilateral crossbite occurs on...
49. Horizontal distance of anterior teeth in crossbite
Overbit
Dentures
underjet
Unilateral crossbite occurs when
50. Curve spee & wilson - 3-d - not proven
traumatic overbite
Bilateral crossbite occurs on...
diastemas
curve of monson
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