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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. Primary teeth set ___________________ for permanent
overjet
canine guidance or protection
occlusion pattern
causes of open bite
2. Horizontal distance of anterior teeth in crossbite
overjet
causes of open bite
posterior crossbite
underjet
3. Individual teeth from each arch can be involved in ________________ malocclusion
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
premature occlusal contact
occlusal trauma
inter-arch
4. Tongue thrust or thumb sucking can cause
Bilateral crossbite occurs on...
class II division I occlusion
An ideal curve of spee would be
Overjet
5. Maximum interlocking of cusp
class II
Crossbite
centric relation
intercuspation
6. Curve of the occlusal plane; from anterior to posterior - increases with age
canine relationship
class II
curve of spee
premature curve of spee
7. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion
Open bite
Overjet is a ___ measurement
class I
Condyles of the mandible continue grow ___than the maxilla
8. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
class III
Open bite
Retrusion
conditions that occur in class II - div I
9. Class III (mal)occlusion of permanent teeth
other names for centric occlusion
If the condyles continue to grow - extreme mesial step will turn into ___
class II malocclusion
primate spaces
10. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift
conditions that occur in class I malocclusion
malocclusion
functional occlusion
openbite
11. Radiographically - the PDL space is wider at the coronal third of the root
distal step
primate spaces
other names for centric occlusion
crestal funneling
12. 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
Dentures
Abfraction
occlusion pattern
causes of open bite
13. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
Condyles of the mandible continue grow ___than the maxilla
gingiva
An ideal curve of spee would be
posterior crossbite
14. Prognathic profile
protrusive occlusion
primary occlusal trauma
anterior crossbite
class III
15. Normal contacts between max. and mand. teeth; momentary contacts
overbite
How the diastemas are closed up(including primates spaces)
fremitus
functional contacts
16. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth
supraversion
bone support
Underjet
malocclusion
17. A continuation of the spee of to extend through the condyle
class I
An ideal curve of spee would be
class II malocclusion
Malocclusion
18. During selective grinding - occlusion should be adjusted In what four relationships
curve of wilson
drifted mesial
centric occlusion - centric relation - protrusive and lateral movements
causes of open bite
19. Mesognathic profile
class I
occlusal trauma
class II
Overjet is a ___ measurement
20. 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
molar relationship
Retrusion
normal overbite
How the diastemas are closed up(including primates spaces)
21. Anterior; no horizontal overlap
late curve of spee
occlusal trauma
interdigitation
edge to edge
22. Lateral mvmt results in contact btwn the max and mand canines
gingiva
Centric relation
Misalignment of teeth
canine guidance or protection
23. 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
Curve of Wilson
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
malocclusion
24. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)
Acromegaly
occlusal erosion
causes of primary occlusal trauma
fremitus
25. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
traumatic overbite
intercuspation
Curve of Spee
decrease over time
26. Middle 3rd
inflammation
Intercuspation
underjet
moderate overbite
27. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)
malocclusion
functional contacts
Retrusion
Misalignment of teeth
28. Most common cause is when the maxilla does not grow in proportion to the mandible
Crossbite
class II malocclusion
molar relationship
overjet
29. Relationship of the teeth in opposite arches; static position
centric occlusion
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
conditions that occur in class II - div 2
occlusal erosion
30. During a left working movement - the right side is known as the
osteoclast resorption
Overjet is a ___ measurement
non working or balancing side
linguoversion
31. 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
protrusive occlusion
conditions that occur in class II - div I
Midline deviation
class II - div 1
32. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
codestructive theory
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
Retrusion
centric relation
33. Both sides
osteoclast resorption
Bilateral crossbite occurs on...
canine guidance or protection
Premature contact
34. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations
excessive occlusal force
occlusal trauma
leeway spaces
pathologic occlusion
35. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus
infraversion
Overbite is a ___ measurement
traumatogenic occlusion
If the condyles continue to grow - extreme mesial step will turn into ___
36. Posterior; no horizontal overlap
inter-arch
protrusive occlusion
mesial step
end to end
37. Tooth extracted
primate spaces
functional occlusion
anterior crossbite
drifted mesial
38. Introduced the concept of codestruction
class III
end to end
canine guidance or protection
Glickman 1963
39. Horizontal
centric relation
centric occlusion
occlusion pattern
Overjet is a ___ measurement
40. Cervical 3rd
Curve of Spee
How the diastemas are closed up(including primates spaces)
severe overbite
centric relation
41. Slight buccal inclination of crown - lingual inclination of root
labialversion or buccoversion
Maxillary posterior teeth vertical alignment
excessive occlusal force
bone support
42. Difference between primary and secondary occ trauma
bone support
leeway spaces
decrease over time
Overbite is a ___ measurement
43. Mesially - Labially
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
temporalis and masseter
traumatic overbite
Retrusion
44. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made
crossbite
Abfraction
centric relation
Hereditary factors include
45. Excessive occ force with adequate bone support =
canine relationship
conditions that occur in class II - div 2
Malocclusion
primary occlusal trauma
46. Max canine occludes with mand. canine and mand. 1st premolar.
crestal funneling
curve of monson
canine relationship
selective grinding or occlusal equilibration
47. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
occlusal trauma
conditions that occur in class II - div I
fremitus
leeway spaces
48. Measurement of horizontal overlap w/ probe
intercuspation
other names for centric occlusion
overjet
Curve of Wilson
49. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact
class I
divisions of parafunctional contacts
Underjet
class II - div 1
50. What is not affected by occ trauma
Mandibular posterior teeth vertical alignment
How the diastemas are closed up(including primates spaces)
gingiva
class II - div 1