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. Posterior; no horizontal overlap
supraversion
Leeway space
end to end
infraversion

2. Patients show evidence or signs and syptoms of occ disease
inflammation
class I
centric relation
pathologic occlusion

3. 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
occlusion pattern
Midline deviation
osteoclast resorption
Retrusion

4. Relationship of the arches bone to bone;
centric relation
torsoversion
conditions that occur in class III
distal step

5. Rotated or twisted; rotated mesial or distal
torsoversion
traumatogenic occlusion
other names for centric occlusion
crestal funneling

6. Tongue thrusting; thumb sucking - pacifiers
canine guidance or protection
causes of open bite
Overbit
premature curve of spee

7. Crowns tipped lingually - roots tipped laterally
If the condyles continue to grow - extreme mesial step will turn into ___
Mandibular posterior teeth vertical alignment
torsoversion
Overjet

8. Guidance for protrusive occ should be on the
anterior teeth
class II
splinting
Occlusion can be affected by

9. Below occlusal plane
parafunctional contacts
infraversion
class III - classificaiton
functional occlusion

10. After periodontal sugery - mobility will ________
Condyles of the mandible continue grow ___than the maxilla
decrease over time
functional occlusion
Mandibular posterior teeth vertical alignment

11. Mobility - migration - pain - premature contact - widening of PDL - parafuntional habits - TMJ problems - all result in _________
crossbite
supraversion
Abfraction
occlusal trauma

12. Maximum touching of max and mand
overbite
malocclusion
class II division I occlusion
interdigitation

13. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
centric relation
premature occlusal contact
curve of monson
fremitus

14. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations
functional contacts
centric relation
excessive occlusal force
occlusal erosion

15. II (mal)occlusion
functional contacts
class III - classificaiton
Working side
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs

16. Mandibular molars more distal than maxillary molars
distal step
Nonworking side
moderate overbite
Hereditary factors include

17. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
occlusion
causes of primary occlusal trauma
traumatogenic occlusion
labialversion or buccoversion

18. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
curve of monson
torsoversion
occlusal erosion
curve of wilson

19. Vertical overlapping
conditions that occur in class I malocclusion
normal curve of spee
hypercementosis
overbite

20. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
Occlusion can be affected by
distal step
Retrusion
selective grinding or occlusal equilibration

21. Laterally
Underjet
posterior crossbite
divisions of parafunctional contacts
From a frontal view - anterior teeth lean ___

22. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion
An ideal curve of spee would be
class II - div 1
distal step
Open bite

23. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
Centric occlusion is also called
Misalignment of teeth
selective grinding or occlusal equilibration
Curve of Wilson

24. Starts closer to premolars
premature curve of spee
divisions of parafunctional contacts
Centric relation
class II - div 2

25. Max canine occludes with mand. canine and mand. 1st premolar.
posterior crossbite
canine relationship
canine guidance or protection
Leeway space

26. If the mandible moves to the left - the mvmt is known as a left working movement
From a frontal view - anterior teeth lean ___
curve of wilson
centric relation
left working movement

27. 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
causes of primary occlusal trauma
Occlusion can be affected by
Overbit
centric occlusion

28. Mandibular molars more mesial than maxillary molars (most children)
functional contacts
interdigitation
divisions of parafunctional contacts
mesial step

29. Maxillary overlap mandibular; whole arch
Abfraction
class II malocclusion
horizontal overlap
underjet

30. Anterior or posterior; bilateral or unitlateral - anterior more common
conditions that occur in class I malocclusion
open bite
selective grinding or occlusal equilibration
causes of primary occlusal trauma

31. 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
molar relationship
class II - div 2
mesial step
Underjet

32. Maxillary anterior teeth stick out labially from tongue thrusting
conditions that occur in class II - div 2
Protrusion
Lateral excursion
occlusal trauma

33. Relationship of teeth in which the incisal ridges or buccal cusp ridges of the maxillary anterior teeth extend facially to the incisal ridges/cusps of the mandibular teeth when the teeth are in centric occlusion relationship
Overjet
conditions that occur in class III
class III
normal curve of spee

34. Mvmt of the mandible in a direction anterior to centric occ
diastemas
centric relation
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
protrusive occlusion

35. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
overbite
Premature contact
occlusal trauma
class II malocclusion

36. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract
Underjet
supraversion
temporalis and masseter
Centric relation

37. Mesognathic profile
Centric relation
class I
splinting
leeway spaces

38. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made
centric relation
class II
class II - div 2
distal step

39. Tooth extracted
class II malocclusion
How the diastemas are closed up(including primates spaces)
Centric occlusion is also called
drifted mesial

40. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)
horizontal overlap
group function
Misalignment of teeth
underjet

41. Class III (mal)occlusion of permanent teeth
Abfraction
If the condyles continue to grow - extreme mesial step will turn into ___
class II division I occlusion
Leeway space

42. Most common cause is when the maxilla does not grow in proportion to the mandible
edge to edge
Crossbite
occlusal trauma
Acromegaly

43. Occlusal guard =
From a frontal view - anterior teeth lean ___
hawley appliance
parafunctional contacts
temporalis and masseter

44. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
class I
Centric(habitual) occlusion
Hereditary factors include
edge to edge

45. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
conditions that occur in class II - div 2
severe overbite
Condyles of the mandible continue grow ___than the maxilla
An ideal curve of spee would be

46. Middle 3rd
traumatic overbite
Curve of Spee
Curve of Wilson
moderate overbite

47. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
anterior crossbite
infraversion
Edge to edge bite occurs when
Attrition

48. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
torsoversion
Overbite is a ___ measurement
conditions that occur in class I malocclusion
selective grinding or occlusal equilibration

49. Excessive deposition of cementum around the apex - due to excessive occlusal forces
From a frontal view - anterior teeth lean ___
underjet
centric occlusion - centric relation - protrusive and lateral movements
hypercementosis

50. Functional occlusion
functional occlusion
Mandibular posterior teeth vertical alignment
intercuspation
dynamic occlusion