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. Most common cause is when the maxilla does not grow in proportion to the mandible
hypercementosis
Curve of Wilson
Crossbite
occlusal erosion

2. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
functional occlusion
Protrusion
Bilateral crossbite occurs on...
traumatic overbite

3. Mandibular molars more distal than maxillary molars
osteoclast resorption
Abfraction
protrusive occlusion
distal step

4. After periodontal sugery - mobility will ________
late curve of spee
Curve of Wilson
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
decrease over time

5. Maxillary overlap mandibular; whole arch
horizontal overlap
temporalis and masseter
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
class II

6. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
Centric relation
tooth mobility
molar relationship
premature occlusal contact

7. Tongue thrusting; thumb sucking - pacifiers
centric occlusion - centric relation - protrusive and lateral movements
causes of open bite
causes of primary occlusal trauma
Acromegaly

8. Laterally
canine relationship
splinting
From a frontal view - anterior teeth lean ___
Protrusion

9. Selective grinding should always be completed after ______ has been controlled
inflammation
Centric(habitual) occlusion
Bilateral crossbite occurs on...
conditions that occur in class I malocclusion

10. A continuation of the spee of to extend through the condyle
An ideal curve of spee would be
inter-arch
molar relationship
Acromegaly

11. Max canine occludes with mand. canine and mand. 1st premolar.
Bilateral crossbite occurs on...
canine guidance or protection
canine relationship
class II - div 2

12. Mvmt of the mandible in a direction anterior to centric occ
Abfraction
protrusive occlusion
severe overbite
Midline deviation

13. Associated with performance; all contacts during function of the oral cavity
linguoversion
overjet
crossbite
functional occlusion

14. The side to which the mandible moves(chewing side)
class III - classificaiton
parafunctional contacts
Working side
fremitus

15. Horizontal
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Open bite
Overjet is a ___ measurement
inter-arch

16. Measurement of horizontal overlap w/ probe
overjet
infraversion
occlusion pattern
Glickman 1963

17. Mandibular molars and maxillary molars are even
flush terminal plane
edge to edge
posterior crossbite
osteoclast resorption

18. Spaces between two teeth
If the condyles continue to grow - extreme mesial step will turn into ___
diastemas
edge to edge
normal overbite

19. Widening of the PDL in areas under pressure results due to
occlusal trauma
osteoclast resorption
Unilateral crossbite occurs when
conditions that occur in class II - div 2

20. Horizontal distance of anterior teeth in crossbite
underjet
Edge to edge bite occurs when
open bite
Attrition

21. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
labialversion or buccoversion
open bite
Occlusion can be affected by
class II - div 2

22. Middle 3rd
Open bite
tooth mobility
moderate overbite
class II

23. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
centric relation
drifted mesial
Centric occlusion is also called
Retrusion

24. 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
tooth mobility
canine guidance or protection
Abfraction
overbite

25. Retrognathic profile
class II
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
fremitus
open bite

26. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
premature occlusal contact
horizontal overlap
Abfraction
Premature contact

27. Lateral mvmt results in contact btwn the max and mand canines
anterior teeth
temporalis and masseter
canine guidance or protection
occlusion

28. Posterior; no horizontal overlap
left working movement
traumatogenic occlusion
end to end
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

29. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
Overjet
class I
selective grinding or occlusal equilibration
temporalis and masseter

30. Contact between maxillary incisors does not line up with contact of mandibular incisors
Midline deviation
class II malocclusion
left working movement
Bilateral crossbite occurs on...

31. Anterior; no horizontal overlap
Centric(habitual) occlusion
Bilateral crossbite occurs on...
Condyles of the mandible continue grow ___than the maxilla
edge to edge

32. During protrusive occ - ______ is considered undesirable
horizontal overlap
posterior contact
class I
edge to edge

33. Mandibular molars more mesial than maxillary molars (most children)
inter-arch
Centric(habitual) occlusion
mesial step
Overbit

34. Maxillary-between canines and laterals - mandibular-between canines and 1st molars
occlusal trauma
drifted mesial
primate spaces
traumatogenic occlusion

35. Tooth positioned more lingual
linguoversion
class I
If the condyles continue to grow - extreme mesial step will turn into ___
occlusal trauma

36. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
Edge to edge bite occurs when
splinting
causes of primary occlusal trauma
moderate overbite

37. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made
Condyles of the mandible continue grow ___than the maxilla
divisions of parafunctional contacts
causes of primary occlusal trauma
centric relation

38. Tooth positioned more facial
labialversion or buccoversion
Condyles of the mandible continue grow ___than the maxilla
mesial step
horizontal overlap

39. Muscles that work the jaw; may become sore due to occ trauma
primary occlusal trauma
group function
Lateral excursion
temporalis and masseter

40. Relationship of the arches bone to bone;
diastemas
left working movement
secondary occlusal trauma
centric relation

41. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact
occlusal trauma
divisions of parafunctional contacts
end to end
vertical overlap

42. Slight buccal inclination of crown - lingual inclination of root
crestal funneling
premature curve of spee
Curve of Spee
Maxillary posterior teeth vertical alignment

43. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
decrease over time
Centric occlusion is also called
overbite
Hereditary factors include

44. Class III (mal)occlusion of permanent teeth
If the condyles continue to grow - extreme mesial step will turn into ___
selective grinding or occlusal equilibration
posterior contact
underjet

45. Abnormal contacts; occlusal habits - and neuroses
openbite
class II division I occlusion
conditions that occur in class III
parafunctional contacts

46. Vertical overlapping
centric occlusion
occlusion pattern
An ideal curve of spee would be
overbite

47. Maxillary - Mandibular - Facial
supraversion
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
hawley appliance
pathologic tooth migration

48. Rotated or twisted; rotated mesial or distal
labialversion or buccoversion
torsoversion
Midline deviation
Intercuspation

49. 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
Attrition
osteoclast resorption
distal step
class III

50. Symptom free dentition that 'survives' or 'adapts' to a deviated occl
physiologic occlusion
underjet
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
How the diastemas are closed up(including primates spaces)