Test your basic knowledge |

Dentistry Occlusion

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. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
non working or balancing side
conditions that occur in class II - div 2
torsoversion
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs

2. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth
malocclusion
Underjet
Edge to edge bite occurs when
osteoclast resorption

3. Relationship of the arches bone to bone;
causes of open bite
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
Dentures
centric relation

4. Usually indicative of moderate to sever perio and secondary occ trauma
causes of open bite
class III
pathologic tooth migration
molar relationship

5. Rotated or twisted; rotated mesial or distal
Centric relation
torsoversion
premature curve of spee
distal step

6. Teeth are misaligned when biting together
Working side
Malocclusion
traumatogenic occlusion
Bilateral crossbite occurs on...

7. Normal contacts between max. and mand. teeth; momentary contacts
Glickman 1963
Open bite
functional contacts
inflammation

8. 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
occlusion
non working or balancing side
occlusal trauma
class III - classificaiton

9. Mvmt of the mandible in a direction anterior to centric occ
divisions of parafunctional contacts
conditions that occur in class III
curve of spee
protrusive occlusion

10. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
Hereditary factors include
drifted mesial
pathologic tooth migration
functional contacts

11. What is not affected by occ trauma
Misalignment of teeth
gingiva
Curve of Spee
protrusive occlusion

12. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
distal step
posterior contact
inter-arch
posterior crossbite

13. Mesially - Labially
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
class II - div 2
Centric(habitual) occlusion
Protrusion

14. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
occlusal erosion
Underjet
codestructive theory
conditions that occur in class II - div 2

15. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
crestal funneling
class III - classificaiton
Curve of Wilson
anterior crossbite

16. Maximal intercuspation or contact of the max and mand teeth
open bite
centric occlusion
excessive occlusal force
occlusal erosion

17. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
Leeway space
flush terminal plane
Nonworking side
causes of primary occlusal trauma

18. Selective grinding should always be completed after ______ has been controlled
distal step
Maxillary posterior teeth vertical alignment
How the diastemas are closed up(including primates spaces)
inflammation

19. 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
Retrusion
class II - div 1
traumatogenic occlusion
curve of wilson

20. Starts closer to the posterior of the 1st molar
late curve of spee
dynamic occlusion
other names for centric occlusion
horizontal overlap

21. Class III (mal)occlusion of permanent teeth
If the condyles continue to grow - extreme mesial step will turn into ___
class II malocclusion
edge to edge
Bilateral crossbite occurs on...

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
vertical overlap
pathologic occlusion
Unilateral crossbite occurs when
Bilateral crossbite occurs on...

23. Below occlusal plane
infraversion
class II
pathologic tooth migration
How the diastemas are closed up(including primates spaces)

24. Both sides
Bilateral crossbite occurs on...
Mandibular posterior teeth vertical alignment
secondary occlusal trauma
Attrition

25. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
divisions of parafunctional contacts
Premature contact
Overbit
crossbite

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
crestal funneling
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Abfraction
Protrusion

27. Maxillary incisors are are lingual to mandibular incisors
Underjet
pathologic occlusion
conditions that occur in class III
curve of wilson

28. Patients show evidence or signs and syptoms of occ disease
Protrusion
pathologic occlusion
fremitus
openbite

29. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
horizontal overlap
Occlusion can be affected by
Leeway space
premature curve of spee

30. Muscles that work the jaw; may become sore due to occ trauma
temporalis and masseter
Glickman 1963
anterior crossbite
divisions of parafunctional contacts

31. Spaces between two teeth
traumatic overbite
occlusal trauma
diastemas
canine guidance or protection

32. Posterior; no horizontal overlap
occlusal trauma
Intercuspation
end to end
curve of spee

33. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors
Underjet
conditions that occur in class III
molar relationship
Overbit

34. Lateral mvmt results in contact btwn the max and mand canines
class II - div 1
Centric occlusion is also called
codestructive theory
canine guidance or protection

35. Later
Unilateral crossbite occurs when
Condyles of the mandible continue grow ___than the maxilla
divisions of parafunctional contacts
Mandibular posterior teeth vertical alignment

36. Anterior or posterior; bilateral or unitlateral - anterior more common
traumatic overbite
open bite
pathologic tooth migration
Nonworking side

37. Associated with performance; all contacts during function of the oral cavity
dynamic occlusion
hawley appliance
functional occlusion
class II malocclusion

38. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations
inflammation
excessive occlusal force
anterior teeth
pathologic tooth migration

39. A continuation of the spee of to extend through the condyle
Condyles of the mandible continue grow ___than the maxilla
An ideal curve of spee would be
diastemas
selective grinding or occlusal equilibration

40. Curved alignment of the occlusal plane when looking from a posterior view(right to left)
Curve of Wilson
conditions that occur in class I malocclusion
leeway spaces
Overbit

41. Maximum touching of max and mand
underjet
occlusion
An ideal curve of spee would be
interdigitation

42. During selective grinding - occlusion should be adjusted In what four relationships
gingiva
centric occlusion - centric relation - protrusive and lateral movements
occlusion
bone support

43. Anterior; no horizontal overlap
inter-arch
edge to edge
traumatogenic occlusion
Occlusion can be affected by

44. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)
secondary occlusal trauma
Misalignment of teeth
Attrition
Premature contact

45. Middle 3rd
drifted mesial
moderate overbite
hawley appliance
crestal funneling

46. Individual teeth from each arch can be involved in ________________ malocclusion
dynamic occlusion
inter-arch
canine guidance or protection
Occlusion can be affected by

47. Excessive deposition of cementum around the apex - due to excessive occlusal forces
hypercementosis
physiologic occlusion
Premature contact
non working or balancing side

48. Laterally
From a frontal view - anterior teeth lean ___
centric occlusion - centric relation - protrusive and lateral movements
class II - div 2
centric relation

49. Abnormal contacts; occlusal habits - and neuroses
mesial step
parafunctional contacts
centric occlusion
primate spaces

50. 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
open bite
centric relation
functional contacts