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. Occlusal guard =
occlusal erosion
hawley appliance
Underjet
Midline deviation

2. When no teeth are contacting on this side
Nonworking side
splinting
Glickman 1963
Centric(habitual) occlusion

3. Individual teeth from each arch can be involved in ________________ malocclusion
posterior contact
inter-arch
osteoclast resorption
traumatogenic occlusion

4. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
codestructive theory
Centric occlusion is also called
Curve of Spee
tooth mobility

5. Widening of the PDL in areas under pressure results due to
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
group function
osteoclast resorption
Condyles of the mandible continue grow ___than the maxilla

6. Curve of the occlusal plane; from anterior to posterior - increases with age
drifted mesial
curve of spee
Underjet
occlusal erosion

7. Maxillary incisors are are lingual to mandibular incisors
Underjet
Overbit
conditions that occur in class I malocclusion
diastemas

8. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
leeway spaces
intercuspation
osteoclast resorption
open bite

9. Mvmt of the mandible in a direction anterior to centric occ
normal overbite
An ideal curve of spee would be
fremitus
protrusive occlusion

10. Most common cause is when the maxilla does not grow in proportion to the mandible
horizontal overlap
From a frontal view - anterior teeth lean ___
Open bite
Crossbite

11. Survival of the dentition despite its deviation from a preconceived hypothetical normal
bone support
premature curve of spee
end to end
physiologic occlusion

12. Retrognathic profile
physiologic occlusion
Leeway space
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
class II

13. Teeth are misaligned when biting together
secondary occlusal trauma
How the diastemas are closed up(including primates spaces)
Malocclusion
anterior teeth

14. Symptom free dentition that 'survives' or 'adapts' to a deviated occl
protrusive occlusion
curve of monson
physiologic occlusion
Lateral excursion

15. Muscles that work the jaw; may become sore due to occ trauma
If the condyles continue to grow - extreme mesial step will turn into ___
selective grinding or occlusal equilibration
temporalis and masseter
conditions that occur in class III

16. Excessive deposition of cementum around the apex - due to excessive occlusal forces
pathologic occlusion
hypercementosis
Attrition
Centric relation

17. Later
Condyles of the mandible continue grow ___than the maxilla
physiologic occlusion
If the condyles continue to grow - extreme mesial step will turn into ___
torsoversion

18. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
other names for centric occlusion
infraversion
If the condyles continue to grow - extreme mesial step will turn into ___
Hereditary factors include

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
Edge to edge bite occurs when
temporalis and masseter
canine guidance or protection
class II - div 1

20. ____ is not a sign of occl trauma
centric relation
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
occlusal erosion
Misalignment of teeth

21. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
protrusive occlusion
Abfraction
selective grinding or occlusal equilibration
class III

22. Middle 3rd
curve of spee
crossbite
canine guidance or protection
moderate overbite

23. If the mandible moves to the left - the mvmt is known as a left working movement
conditions that occur in class I malocclusion
open bite
class II division I occlusion
left working movement

24. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations
osteoclast resorption
excessive occlusal force
pathologic occlusion
centric relation

25. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
anterior crossbite
premature curve of spee
pathologic tooth migration
secondary occlusal trauma

26. Vibrational mvmt of a tooth under occ function
fremitus
causes of primary occlusal trauma
codestructive theory
posterior crossbite

27. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
canine guidance or protection
Curve of Spee
Crossbite
protrusive occlusion

28. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
interdigitation
Premature contact
group function
canine relationship

29. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Centric(habitual) occlusion
conditions that occur in class II - div 2
normal curve of spee

30. During a left working movement - the right side is known as the
class III
From a frontal view - anterior teeth lean ___
occlusal trauma
non working or balancing side

31. Mb cusp of max 1st molar-buccal groove of mand 1st molar
distal step
occlusion pattern
premature occlusal contact
molar relationship

32. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
moderate overbite
infraversion
supraversion
Intercuspation

33. Patients show evidence or signs and syptoms of occ disease
class III
Leeway space
pathologic occlusion
Maxillary posterior teeth vertical alignment

34. Horizontal distance of anterior teeth in crossbite
intercuspation
Centric occlusion is also called
left working movement
underjet

35. Relationship of the arches bone to bone;
conditions that occur in class I malocclusion
codestructive theory
centric relation
labialversion or buccoversion

36. Curved alignment of the occlusal plane when looking from a posterior view(right to left)
Centric relation
selective grinding or occlusal equilibration
If the condyles continue to grow - extreme mesial step will turn into ___
Curve of Wilson

37. Curve spee & wilson - 3-d - not proven
Misalignment of teeth
diastemas
leeway spaces
curve of monson

38. Vertical overlapping
occlusal erosion
overbite
anterior crossbite
late curve of spee

39. Mandible moves to the right or left
Edge to edge bite occurs when
If the condyles continue to grow - extreme mesial step will turn into ___
Lateral excursion
moderate overbite

40. Posterior; no horizontal overlap
Mandibular posterior teeth vertical alignment
Crossbite
end to end
crestal funneling

41. 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
Crossbite
Retrusion
premature curve of spee
causes of primary occlusal trauma

42. Radiographically - the PDL space is wider at the coronal third of the root
splinting
osteoclast resorption
crestal funneling
Hereditary factors include

43. Anterior or posterior; bilateral or unitlateral - anterior more common
curve of spee
class II - div 1
open bite
overjet

44. Class III (mal)occlusion of permanent teeth
anterior crossbite
centric occlusion
pathologic tooth migration
If the condyles continue to grow - extreme mesial step will turn into ___

45. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors
conditions that occur in class III
osteoclast resorption
excessive occlusal force
occlusal trauma

46. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Acromegaly
anterior crossbite
openbite

47. The way you normally bite your teeth together when not chewing
curve of wilson
moderate overbite
Overbit
Centric(habitual) occlusion

48. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
occlusion
Occlusion can be affected by
centric relation
anterior teeth

49. Maximum touching of max and mand
Overbite is a ___ measurement
Maxillary posterior teeth vertical alignment
interdigitation
occlusion pattern

50. Above occlusal plane
Working side
supraversion
posterior contact
causes of primary occlusal trauma