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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. Below occlusal plane
normal curve of spee
divisions of parafunctional contacts
mesial step
infraversion
2. During a left working movement - the right side is known as the
occlusal trauma
hawley appliance
primate spaces
non working or balancing side
3. 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
drifted mesial
centric occlusion
splinting
Dentures
4. Later
Curve of Spee
non working or balancing side
Condyles of the mandible continue grow ___than the maxilla
vertical overlap
5. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
distal step
conditions that occur in class II - div I
class II - div 2
Retrusion
6. Slight buccal inclination of crown - lingual inclination of root
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Maxillary posterior teeth vertical alignment
horizontal overlap
class II malocclusion
7. Vibrational mvmt of a tooth under occ function
fremitus
curve of monson
conditions that occur in class II - div I
non working or balancing side
8. Middle 3rd
moderate overbite
centric occlusion
functional contacts
class II division I occlusion
9. Maximal intercuspation or contact of the max and mand teeth
Crossbite
centric occlusion
codestructive theory
horizontal overlap
10. Primary teeth set ___________________ for permanent
occlusion pattern
pathologic tooth migration
tooth mobility
Centric occlusion is also called
11. Excessive occ force with adequate bone support =
hawley appliance
primary occlusal trauma
leeway spaces
Overjet
12. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made
Curve of Wilson
left working movement
class III
centric relation
13. Lateral mvmt results in contacct of all posterior teeth
group function
mesial step
conditions that occur in class II - div 2
torsoversion
14. 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
open bite
centric occlusion - centric relation - protrusive and lateral movements
gingiva
15. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
dynamic occlusion
tooth mobility
premature curve of spee
conditions that occur in class III
16. The permanent molars erupt posterior to the primary teeth and push them all mesially
How the diastemas are closed up(including primates spaces)
occlusal trauma
functional occlusion
infraversion
17. Abnormal contacts; occlusal habits - and neuroses
Mandibular posterior teeth vertical alignment
parafunctional contacts
class III - classificaiton
Edge to edge bite occurs when
18. Mandibular molars more distal than maxillary molars
conditions that occur in class III
distal step
codestructive theory
anterior crossbite
19. Anterior or posterior; bilateral or unitlateral - anterior more common
inter-arch
open bite
late curve of spee
Overjet is a ___ measurement
20. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
secondary occlusal trauma
Curve of Spee
overbite
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
21. Curve spee & wilson - 3-d - not proven
normal overbite
curve of monson
curve of wilson
labialversion or buccoversion
22. Maximum interlocking of cusp
decrease over time
anterior crossbite
posterior contact
intercuspation
23. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
centric occlusion
class III - classificaiton
centric relation
codestructive theory
24. Maxillary incisors are are lingual to mandibular incisors
hawley appliance
curve of wilson
Underjet
decrease over time
25. Muscles that work the jaw; may become sore due to occ trauma
centric occlusion - centric relation - protrusive and lateral movements
severe overbite
Attrition
temporalis and masseter
26. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
osteoclast resorption
traumatic overbite
inter-arch
temporalis and masseter
27. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact
divisions of parafunctional contacts
traumatic overbite
Lateral excursion
occlusal trauma
28. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
curve of spee
posterior crossbite
Centric occlusion is also called
overjet
29. What is not affected by occ trauma
decrease over time
bone support
gingiva
Acromegaly
30. Guidance for protrusive occ should be on the
anterior teeth
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
normal curve of spee
molar relationship
31. Overlap of anterior teeth
curve of spee
causes of primary occlusal trauma
vertical overlap
bone support
32. After periodontal sugery - mobility will ________
moderate overbite
linguoversion
selective grinding or occlusal equilibration
decrease over time
33. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
posterior contact
Intercuspation
vertical overlap
Hereditary factors include
34. Both sides
Underjet
decrease over time
Bilateral crossbite occurs on...
primate spaces
35. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
Occlusion can be affected by
Centric relation
Centric occlusion is also called
normal overbite
36. Teeth are misaligned when biting together
class II - div 1
fremitus
primate spaces
Malocclusion
37. Need tooth to tooth contact on both working and non working sides to func effectively
crossbite
Dentures
anterior crossbite
drifted mesial
38. Vertical overlapping
centric occlusion
overbite
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
temporalis and masseter
39. Buck teeth are common and are considered
moderate overbite
class II malocclusion
vertical overlap
severe overbite
40. Widening of the PDL in areas under pressure results due to
Curve of Spee
Protrusion
physiologic occlusion
osteoclast resorption
41. Radiographically - the PDL space is wider at the coronal third of the root
premature curve of spee
Condyles of the mandible continue grow ___than the maxilla
crestal funneling
vertical overlap
42. Cusps of maxillary teeth directly over cusps of mandibular teeth
Edge to edge bite occurs when
Crossbite
open bite
linguoversion
43. Rotated or twisted; rotated mesial or distal
centric occlusion
torsoversion
premature occlusal contact
class II malocclusion
44. 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
Mandibular posterior teeth vertical alignment
Overjet
Leeway space
Attrition
45. Most common cause is when the maxilla does not grow in proportion to the mandible
Retrusion
flush terminal plane
Crossbite
Condyles of the mandible continue grow ___than the maxilla
46. Starts closer to the posterior of the 1st molar
late curve of spee
pathologic tooth migration
hypercementosis
functional contacts
47. Selective grinding should always be completed after ______ has been controlled
anterior teeth
traumatogenic occlusion
occlusion
inflammation
48. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)
conditions that occur in class III
Misalignment of teeth
secondary occlusal trauma
Acromegaly
49. 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
Curve of Wilson
decrease over time
class II - div 1
occlusion
50. Introduced the concept of codestruction
Glickman 1963
Crossbite
splinting
Intercuspation
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