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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. Horizontal distance of anterior teeth in crossbite
underjet
centric relation
conditions that occur in class II - div 2
divisions of parafunctional contacts
2. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
Leeway space
physiologic occlusion
drifted mesial
malocclusion
3. Maxillary-between canines and laterals - mandibular-between canines and 1st molars
class II malocclusion
Condyles of the mandible continue grow ___than the maxilla
primate spaces
occlusal erosion
4. A continuation of the spee of to extend through the condyle
mesial step
osteoclast resorption
An ideal curve of spee would be
causes of open bite
5. Muscles that work the jaw; may become sore due to occ trauma
occlusal erosion
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
normal overbite
temporalis and masseter
6. Both sides
occlusal trauma
Overbit
Bilateral crossbite occurs on...
parafunctional contacts
7. Mandibular molars more distal than maxillary molars
crossbite
class II - div 2
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
distal step
8. Lateral mvmt results in contact btwn the max and mand canines
canine guidance or protection
horizontal overlap
flush terminal plane
physiologic occlusion
9. Cusps of maxillary teeth directly over cusps of mandibular teeth
From a frontal view - anterior teeth lean ___
Edge to edge bite occurs when
Retrusion
curve of spee
10. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
dynamic occlusion
horizontal overlap
curve of wilson
crestal funneling
11. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
conditions that occur in class III
tooth mobility
canine relationship
Leeway space
12. Anterior; no horizontal overlap
conditions that occur in class I malocclusion
edge to edge
Mandibular posterior teeth vertical alignment
traumatic overbite
13. Lateral mvmt results in contacct of all posterior teeth
Maxillary posterior teeth vertical alignment
primary occlusal trauma
group function
posterior contact
14. Need tooth to tooth contact on both working and non working sides to func effectively
centric occlusion
Midline deviation
Dentures
torsoversion
15. Teeth that are in func when the mandible moves in lateral or protrusive excursions or mvmts
functional occlusion
Bilateral crossbite occurs on...
open bite
Open bite
16. Abnormal contacts; occlusal habits - and neuroses
posterior crossbite
conditions that occur in class III
curve of monson
parafunctional contacts
17. Mandibular molars and maxillary molars are even
parafunctional contacts
Hereditary factors include
flush terminal plane
intercuspation
18. Individual teeth from each arch can be involved in ________________ malocclusion
occlusal trauma
inter-arch
overjet
Retrusion
19. Selective grinding should always be completed after ______ has been controlled
vertical overlap
functional occlusion
tooth mobility
inflammation
20. Buck teeth are common and are considered
leeway spaces
protrusive occlusion
curve of wilson
class II malocclusion
21. Difference between primary and secondary occ trauma
bone support
posterior contact
anterior crossbite
conditions that occur in class III
22. Patient forces teeth together in centric occlusion on one side to get a more functional bite and has a crossbite on the other side(the midline of the maxillary anterior teeth does not line up with the midlineof the mandible
conditions that occur in class I malocclusion
normal overbite
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Unilateral crossbite occurs when
23. Primary teeth set ___________________ for permanent
occlusion pattern
Abfraction
physiologic occlusion
left working movement
24. Mandibular molars more mesial than maxillary molars (most children)
divisions of parafunctional contacts
non working or balancing side
mesial step
An ideal curve of spee would be
25. Vertical overlapping
edge to edge
Working side
overbite
hypercementosis
26. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
posterior crossbite
centric occlusion - centric relation - protrusive and lateral movements
anterior crossbite
interdigitation
27. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
Acromegaly
Intercuspation
anterior teeth
severe overbite
28. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact
horizontal overlap
divisions of parafunctional contacts
primary occlusal trauma
hypercementosis
29. Introduced the concept of codestruction
Glickman 1963
occlusion
Centric relation
functional contacts
30. Occlusal guard =
hawley appliance
functional occlusion
drifted mesial
canine guidance or protection
31. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations
Centric(habitual) occlusion
excessive occlusal force
infraversion
other names for centric occlusion
32. Mvmt of the mandible in a direction anterior to centric occ
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
linguoversion
protrusive occlusion
temporalis and masseter
33. Widening of the PDL in areas under pressure results due to
flush terminal plane
Acromegaly
osteoclast resorption
class II - div 1
34. II (mal)occlusion
inter-arch
Condyles of the mandible continue grow ___than the maxilla
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Intercuspation
35. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
supraversion
Curve of Spee
Maxillary posterior teeth vertical alignment
Nonworking side
36. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
occlusal trauma
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
premature occlusal contact
causes of primary occlusal trauma
37. What is not affected by occ trauma
gingiva
functional occlusion
crossbite
occlusal trauma
38. Max canine occludes with mand. canine and mand. 1st premolar.
Overjet is a ___ measurement
diastemas
canine relationship
anterior teeth
39. Middle 3rd
Working side
Lateral excursion
moderate overbite
Midline deviation
40. Relationship of the arches bone to bone;
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Leeway space
centric relation
41. Horizontal
Attrition
osteoclast resorption
Overjet is a ___ measurement
primary occlusal trauma
42. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
curve of spee
Hereditary factors include
curve of monson
traumatogenic occlusion
43. Measurement of horizontal overlap w/ probe
conditions that occur in class I malocclusion
overjet
Overjet is a ___ measurement
functional occlusion
44. If the mandible moves to the left - the mvmt is known as a left working movement
left working movement
Underjet
class II
Crossbite
45. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)
functional occlusion
Acromegaly
Attrition
edge to edge
46. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus
normal overbite
underjet
hypercementosis
traumatogenic occlusion
47. Contact between maxillary incisors does not line up with contact of mandibular incisors
excessive occlusal force
Midline deviation
selective grinding or occlusal equilibration
flush terminal plane
48. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
occlusion pattern
underjet
conditions that occur in class II - div I
crestal funneling
49. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
Occlusion can be affected by
causes of open bite
posterior contact
physiologic occlusion
50. Tongue thrust or thumb sucking can cause
Working side
Curve of Wilson
Hereditary factors include
class II division I occlusion