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. 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
Working side
Premature contact
traumatic overbite
Retrusion

2. Vibrational mvmt of a tooth under occ function
fremitus
physiologic occlusion
divisions of parafunctional contacts
openbite

3. Vertical
causes of primary occlusal trauma
Misalignment of teeth
Overbite is a ___ measurement
Retrusion

4. Patients show evidence or signs and syptoms of occ disease
severe overbite
physiologic occlusion
pathologic occlusion
Nonworking side

5. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
selective grinding or occlusal equilibration
secondary occlusal trauma
centric occlusion
pathologic occlusion

6. Excessive occ force with adequate bone support =
Glickman 1963
An ideal curve of spee would be
crestal funneling
primary occlusal trauma

7. Occlusal guard =
posterior contact
hawley appliance
non working or balancing side
molar relationship

8. 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
underjet
centric relation
conditions that occur in class II - div 2

9. Mandibular molars and maxillary molars are even
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
canine guidance or protection
flush terminal plane
class II - div 1

10. Habitual - acquired - convenience - intercuspal & static
other names for centric occlusion
curve of spee
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
torsoversion

11. When no teeth are contacting on this side
Nonworking side
conditions that occur in class II - div I
gingiva
distal step

12. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
Hereditary factors include
traumatic overbite
Crossbite
flush terminal plane

13. Mobility - migration - pain - premature contact - widening of PDL - parafuntional habits - TMJ problems - all result in _________
occlusal trauma
late curve of spee
bone support
parafunctional contacts

14. Maxillary - Mandibular - Facial
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
primary occlusal trauma
posterior crossbite

15. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
horizontal overlap
Premature contact
flush terminal plane
conditions that occur in class I malocclusion

16. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract
interdigitation
class III
occlusal erosion
Centric relation

17. A continuation of the spee of to extend through the condyle
malocclusion
An ideal curve of spee would be
anterior teeth
Occlusion can be affected by

18. Muscles that work the jaw; may become sore due to occ trauma
conditions that occur in class I malocclusion
temporalis and masseter
premature curve of spee
horizontal overlap

19. After periodontal sugery - mobility will ________
Curve of Spee
Condyles of the mandible continue grow ___than the maxilla
decrease over time
causes of open bite

20. Below occlusal plane
infraversion
Premature contact
osteoclast resorption
other names for centric occlusion

21. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
centric relation
Protrusion
premature occlusal contact
class III - classificaiton

22. What is not affected by occ trauma
torsoversion
centric relation
osteoclast resorption
gingiva

23. Functional occlusion
posterior crossbite
Premature contact
dynamic occlusion
occlusion

24. 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
occlusal trauma
class II - div 2
centric relation
Crossbite

25. Starts closer to premolars
occlusion
Nonworking side
premature curve of spee
curve of wilson

26. Most common cause is when the maxilla does not grow in proportion to the mandible
An ideal curve of spee would be
Working side
Crossbite
infraversion

27. Cusps of maxillary teeth directly over cusps of mandibular teeth
posterior crossbite
occlusion pattern
Edge to edge bite occurs when
Centric(habitual) occlusion

28. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors
Centric occlusion is also called
conditions that occur in class III
functional occlusion
Dentures

29. Lateral mvmt results in contacct of all posterior teeth
Curve of Spee
openbite
group function
diastemas

30. Spaces between two teeth
linguoversion
class II
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
diastemas

31. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
parafunctional contacts
causes of primary occlusal trauma
selective grinding or occlusal equilibration
normal overbite

32. 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
linguoversion
Overbite is a ___ measurement
conditions that occur in class II - div 2
Abfraction

33. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
tooth mobility
centric occlusion
centric occlusion - centric relation - protrusive and lateral movements
Centric occlusion is also called

34. Tooth extracted
horizontal overlap
class II malocclusion
drifted mesial
osteoclast resorption

35. Survival of the dentition despite its deviation from a preconceived hypothetical normal
primary occlusal trauma
physiologic occlusion
Nonworking side
curve of wilson

36. Relationship of the teeth in which the incisal ridges of the maxillary anterior teeth extend below the incisal edges of the mandibular anterior teeth when the teeth are placed in a centric occlusal relationship
Retrusion
class II - div 2
Overbit
Overjet is a ___ measurement

37. Widening of the PDL in areas under pressure results due to
Nonworking side
drifted mesial
osteoclast resorption
anterior teeth

38. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
pathologic occlusion
conditions that occur in class II - div I
mesial step
splinting

39. #10 & #23
Dentures
Midline deviation
openbite
Retrusion

40. The way you normally bite your teeth together when not chewing
Centric(habitual) occlusion
Curve of Wilson
Protrusion
intercuspation

41. Middle 3rd
class III - classificaiton
moderate overbite
occlusion pattern
divisions of parafunctional contacts

42. Later
Condyles of the mandible continue grow ___than the maxilla
moderate overbite
posterior contact
normal curve of spee

43. Both sides
premature occlusal contact
protrusive occlusion
horizontal overlap
Bilateral crossbite occurs on...

44. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together
premature curve of spee
occlusion
anterior crossbite
Leeway space

45. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
labialversion or buccoversion
Glickman 1963
pathologic tooth migration
posterior crossbite

46. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
severe overbite
leeway spaces
flush terminal plane
Intercuspation

47. Prognathic profile
class III
excessive occlusal force
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
non working or balancing side

48. Crowns tipped lingually - roots tipped laterally
causes of primary occlusal trauma
physiologic occlusion
posterior contact
Mandibular posterior teeth vertical alignment

49. Laterally
linguoversion
gingiva
torsoversion
From a frontal view - anterior teeth lean ___

50. Tooth positioned more lingual
drifted mesial
end to end
linguoversion
pathologic occlusion