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. After periodontal sugery - mobility will ________
decrease over time
Overjet is a ___ measurement
vertical overlap
overbite

2. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
Acromegaly
other names for centric occlusion
curve of wilson
group function

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
occlusion pattern
conditions that occur in class II - div I
premature occlusal contact
splinting

4. Middle 3rd
supraversion
openbite
moderate overbite
occlusion

5. Abnormal contacts; occlusal habits - and neuroses
parafunctional contacts
class I
centric occlusion - centric relation - protrusive and lateral movements
Overjet is a ___ measurement

6. ____ is not a sign of occl trauma
codestructive theory
occlusal erosion
class II division I occlusion
conditions that occur in class I malocclusion

7. II (mal)occlusion
tooth mobility
divisions of parafunctional contacts
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
From a frontal view - anterior teeth lean ___

8. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together
functional contacts
late curve of spee
occlusion
anterior crossbite

9. Tooth positioned more facial
class II - div 2
labialversion or buccoversion
From a frontal view - anterior teeth lean ___
selective grinding or occlusal equilibration

10. Radiographically - the PDL space is wider at the coronal third of the root
Centric occlusion is also called
causes of primary occlusal trauma
causes of open bite
crestal funneling

11. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
codestructive theory
mesial step
vertical overlap
Working side

12. Selective grinding should always be completed after ______ has been controlled
edge to edge
inflammation
anterior crossbite
divisions of parafunctional contacts

13. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth
other names for centric occlusion
Underjet
overjet
malocclusion

14. Starts around the mesial of the 1st molar
normal curve of spee
Centric relation
class II malocclusion
centric occlusion - centric relation - protrusive and lateral movements

15. 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
diastemas
Retrusion
An ideal curve of spee would be
Unilateral crossbite occurs when

16. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
inflammation
premature occlusal contact
Lateral excursion
normal curve of spee

17. Mandibular molars more mesial than maxillary molars (most children)
curve of wilson
canine guidance or protection
mesial step
An ideal curve of spee would be

18. Mesognathic profile
class I
conditions that occur in class II - div I
Overbite is a ___ measurement
overbite

19. Laterally
normal curve of spee
From a frontal view - anterior teeth lean ___
curve of spee
linguoversion

20. When no teeth are contacting on this side
centric occlusion
selective grinding or occlusal equilibration
Centric relation
Nonworking side

21. Maximum interlocking of cusp
intercuspation
premature curve of spee
conditions that occur in class II - div I
class II - div 1

22. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
Mandibular posterior teeth vertical alignment
Intercuspation
functional contacts
leeway spaces

23. During selective grinding - occlusion should be adjusted In what four relationships
occlusal trauma
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
centric occlusion - centric relation - protrusive and lateral movements
Unilateral crossbite occurs when

24. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
Curve of Wilson
traumatogenic occlusion
causes of primary occlusal trauma
Centric(habitual) occlusion

25. Muscles that work the jaw; may become sore due to occ trauma
drifted mesial
occlusal trauma
osteoclast resorption
temporalis and masseter

26. If the mandible moves to the left - the mvmt is known as a left working movement
Crossbite
Overbit
left working movement
canine guidance or protection

27. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
parafunctional contacts
Curve of Wilson
Overbit
Centric occlusion is also called

28. Lateral mvmt results in contact btwn the max and mand canines
canine guidance or protection
crestal funneling
canine relationship
functional occlusion

29. Mandibular molars and maxillary molars are even
premature occlusal contact
flush terminal plane
linguoversion
inflammation

30. Starts closer to the posterior of the 1st molar
hypercementosis
curve of wilson
Nonworking side
late curve of spee

31. Anterior or posterior; bilateral or unitlateral - anterior more common
class I
open bite
Protrusion
primary occlusal trauma

32. Retrognathic profile
class II
class II - div 2
Overbite is a ___ measurement
Acromegaly

33. Primary teeth set ___________________ for permanent
class III - classificaiton
linguoversion
occlusion pattern
centric occlusion - centric relation - protrusive and lateral movements

34. 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
pathologic occlusion
group function
dynamic occlusion

35. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
Glickman 1963
centric occlusion
secondary occlusal trauma
premature curve of spee

36. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract
Mandibular posterior teeth vertical alignment
physiologic occlusion
Centric relation
class III - classificaiton

37. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
codestructive theory
conditions that occur in class II - div 2
functional occlusion
decrease over time

38. Individual teeth from each arch can be involved in ________________ malocclusion
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
conditions that occur in class II - div 2
inter-arch
overjet

39. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
selective grinding or occlusal equilibration
occlusion pattern
class II
excessive occlusal force

40. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
edge to edge
conditions that occur in class II - div 2
hawley appliance
Curve of Spee

41. During a left working movement - the right side is known as the
Mandibular posterior teeth vertical alignment
excessive occlusal force
traumatogenic occlusion
non working or balancing side

42. Survival of the dentition despite its deviation from a preconceived hypothetical normal
centric occlusion - centric relation - protrusive and lateral movements
vertical overlap
physiologic occlusion
splinting

43. Buck teeth are common and are considered
class II malocclusion
inflammation
molar relationship
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs

44. Crowns tipped lingually - roots tipped laterally
Bilateral crossbite occurs on...
Mandibular posterior teeth vertical alignment
crestal funneling
causes of primary occlusal trauma

45. Rotated or twisted; rotated mesial or distal
Protrusion
Dentures
left working movement
torsoversion

46. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
Leeway space
How the diastemas are closed up(including primates spaces)
interdigitation
group function

47. Teeth are misaligned when biting together
Bilateral crossbite occurs on...
Premature contact
functional occlusion
Malocclusion

48. 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
overjet
Working side
Abfraction
decrease over time

49. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
conditions that occur in class II - div 2
late curve of spee
Occlusion can be affected by
class II malocclusion

50. Most common cause is when the maxilla does not grow in proportion to the mandible
Crossbite
Edge to edge bite occurs when
Centric relation
left working movement