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. Mb cusp of max 1st molar-buccal groove of mand 1st molar
molar relationship
divisions of parafunctional contacts
premature occlusal contact
group function

2. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract
posterior crossbite
Edge to edge bite occurs when
tooth mobility
Centric relation

3. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
labialversion or buccoversion
selective grinding or occlusal equilibration
conditions that occur in class II - div 2
edge to edge

4. Maxillary incisors are are lingual to mandibular incisors
traumatogenic occlusion
osteoclast resorption
Acromegaly
Underjet

5. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus
openbite
occlusion pattern
traumatogenic occlusion
canine guidance or protection

6. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
anterior crossbite
dynamic occlusion
selective grinding or occlusal equilibration
Dentures

7. Overlap of anterior teeth
codestructive theory
vertical overlap
functional occlusion
centric occlusion

8. Most common cause is when the maxilla does not grow in proportion to the mandible
Crossbite
bone support
Nonworking side
decrease over time

9. Max canine occludes with mand. canine and mand. 1st premolar.
canine relationship
group function
curve of monson
molar relationship

10. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
physiologic occlusion
Occlusion can be affected by
parafunctional contacts
Centric occlusion is also called

11. Maxillary anterior teeth stick out labially from tongue thrusting
Overjet
class III - classificaiton
Protrusion
centric occlusion - centric relation - protrusive and lateral movements

12. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
causes of primary occlusal trauma
class II
splinting
Malocclusion

13. Individual teeth from each arch can be involved in ________________ malocclusion
Maxillary posterior teeth vertical alignment
posterior contact
inter-arch
Overjet

14. During protrusive occ - ______ is considered undesirable
late curve of spee
group function
torsoversion
posterior contact

15. Need tooth to tooth contact on both working and non working sides to func effectively
An ideal curve of spee would be
Dentures
end to end
late curve of spee

16. Lateral mvmt results in contact btwn the max and mand canines
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Lateral excursion
canine guidance or protection
tooth mobility

17. Habitual - acquired - convenience - intercuspal & static
divisions of parafunctional contacts
flush terminal plane
other names for centric occlusion
traumatic overbite

18. Mesially - Labially
linguoversion
Centric(habitual) occlusion
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
How the diastemas are closed up(including primates spaces)

19. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
splinting
class II malocclusion
Occlusion can be affected by
conditions that occur in class II - div I

20. Mobility - migration - pain - premature contact - widening of PDL - parafuntional habits - TMJ problems - all result in _________
edge to edge
occlusal trauma
class II division I occlusion
Leeway space

21. Anterior; no horizontal overlap
edge to edge
Acromegaly
Retrusion
physiologic occlusion

22. If the mandible moves to the left - the mvmt is known as a left working movement
left working movement
end to end
decrease over time
torsoversion

23. Maxillary overlap mandibular; whole arch
horizontal overlap
hawley appliance
Centric(habitual) occlusion
Misalignment of teeth

24. Middle 3rd
other names for centric occlusion
secondary occlusal trauma
Premature contact
moderate overbite

25. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
anterior teeth
Condyles of the mandible continue grow ___than the maxilla
tooth mobility
Leeway space

26. 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
premature occlusal contact
molar relationship
An ideal curve of spee would be
Retrusion

27. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift
class II malocclusion
Edge to edge bite occurs when
conditions that occur in class I malocclusion
left working movement

28. Horizontal distance of anterior teeth in crossbite
canine guidance or protection
canine relationship
conditions that occur in class I malocclusion
underjet

29. Mvmt of the mandible in a direction anterior to centric occ
class I
premature occlusal contact
protrusive occlusion
diastemas

30. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
premature occlusal contact
posterior crossbite
Overjet is a ___ measurement
conditions that occur in class II - div I

31. Maxillary-between canines and laterals - mandibular-between canines and 1st molars
causes of open bite
Condyles of the mandible continue grow ___than the maxilla
bone support
primate spaces

32. Malocclusion cause excessive incisal or occlusal wear(attrition); teeth continue to erupt in order to occlude with teeth in the opposite arch & roots become exposed
centric occlusion - centric relation - protrusive and lateral movements
physiologic occlusion
Attrition
distal step

33. Symptom free dentition that 'survives' or 'adapts' to a deviated occl
Underjet
hypercementosis
physiologic occlusion
late curve of spee

34. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
non working or balancing side
Edge to edge bite occurs when
occlusal erosion
codestructive theory

35. 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
posterior contact
openbite
splinting
codestructive theory

36. Tongue thrusting; thumb sucking - pacifiers
posterior contact
causes of open bite
physiologic occlusion
causes of primary occlusal trauma

37. Maximal intercuspation or contact of the max and mand teeth
Centric occlusion is also called
centric occlusion
centric occlusion - centric relation - protrusive and lateral movements
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

38. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
inflammation
Intercuspation
horizontal overlap
linguoversion

39. ____ is not a sign of occl trauma
leeway spaces
torsoversion
end to end
occlusal erosion

40. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
occlusal trauma
normal curve of spee
class III
flush terminal plane

41. Horizontal
leeway spaces
Overjet is a ___ measurement
Curve of Spee
mesial step

42. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
temporalis and masseter
Premature contact
hypercementosis
centric occlusion

43. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Leeway space
open bite
distal step

44. Mandibular molars and maxillary molars are even
premature curve of spee
dynamic occlusion
Hereditary factors include
flush terminal plane

45. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)
curve of monson
canine guidance or protection
If the condyles continue to grow - extreme mesial step will turn into ___
Misalignment of teeth

46. Tooth extracted
drifted mesial
dynamic occlusion
non working or balancing side
splinting

47. Both sides
centric occlusion
functional occlusion
Bilateral crossbite occurs on...
class I

48. After periodontal sugery - mobility will ________
conditions that occur in class I malocclusion
normal overbite
decrease over time
centric occlusion

49. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
traumatic overbite
class II malocclusion
curve of wilson
dynamic occlusion

50. Teeth are misaligned when biting together
intercuspation
Malocclusion
Curve of Spee
Overbit