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. Mandibular molars more distal than maxillary molars
excessive occlusal force
centric occlusion - centric relation - protrusive and lateral movements
distal step
Attrition

2. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact
divisions of parafunctional contacts
class II
occlusal erosion
end to end

3. Maximum interlocking of cusp
canine guidance or protection
Protrusion
molar relationship
intercuspation

4. Class III (mal)occlusion of permanent teeth
Intercuspation
inter-arch
If the condyles continue to grow - extreme mesial step will turn into ___
class II - div 1

5. If the mandible moves to the left - the mvmt is known as a left working movement
functional contacts
left working movement
anterior teeth
Centric(habitual) occlusion

6. Radiographically - the PDL space is wider at the coronal third of the root
crestal funneling
Malocclusion
centric relation
Overbite is a ___ measurement

7. Habitual - acquired - convenience - intercuspal & static
conditions that occur in class II - div I
canine guidance or protection
other names for centric occlusion
An ideal curve of spee would be

8. During protrusive occ - ______ is considered undesirable
secondary occlusal trauma
conditions that occur in class II - div I
posterior contact
Centric occlusion is also called

9. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
normal curve of spee
primary occlusal trauma
Malocclusion
conditions that occur in class II - div I

10. Tooth positioned more facial
conditions that occur in class I malocclusion
labialversion or buccoversion
class II malocclusion
How the diastemas are closed up(including primates spaces)

11. Tongue thrust or thumb sucking can cause
class II division I occlusion
posterior crossbite
late curve of spee
Lateral excursion

12. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together
occlusion
An ideal curve of spee would be
protrusive occlusion
vertical overlap

13. Max canine occludes with mand. canine and mand. 1st premolar.
causes of open bite
crossbite
canine relationship
Centric(habitual) occlusion

14. Anterior; no horizontal overlap
edge to edge
Centric(habitual) occlusion
primary occlusal trauma
leeway spaces

15. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors
Occlusion can be affected by
traumatic overbite
primate spaces
conditions that occur in class III

16. Lateral mvmt results in contact btwn the max and mand canines
canine guidance or protection
other names for centric occlusion
premature curve of spee
posterior crossbite

17. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
open bite
traumatogenic occlusion
selective grinding or occlusal equilibration
physiologic occlusion

18. 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
Condyles of the mandible continue grow ___than the maxilla
overbite
conditions that occur in class II - div 2

19. Maxillary anterior teeth stick out labially from tongue thrusting
overbite
Overjet
Protrusion
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___

20. The permanent molars erupt posterior to the primary teeth and push them all mesially
centric relation
How the diastemas are closed up(including primates spaces)
Overjet
Unilateral crossbite occurs when

21. 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
drifted mesial
traumatic overbite
Abfraction
class II malocclusion

22. Vibrational mvmt of a tooth under occ function
posterior crossbite
If the condyles continue to grow - extreme mesial step will turn into ___
fremitus
canine guidance or protection

23. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
causes of primary occlusal trauma
How the diastemas are closed up(including primates spaces)
Occlusion can be affected by
protrusive occlusion

24. Guidance for protrusive occ should be on the
anterior teeth
Centric occlusion is also called
anterior crossbite
gingiva

25. Widening of the PDL in areas under pressure results due to
premature occlusal contact
osteoclast resorption
Hereditary factors include
Centric relation

26. Incisal 3rd
normal overbite
dynamic occlusion
centric occlusion
intercuspation

27. Horizontal distance of anterior teeth in crossbite
physiologic occlusion
underjet
Protrusion
class II - div 1

28. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
molar relationship
class II division I occlusion
causes of primary occlusal trauma
labialversion or buccoversion

29. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
open bite
occlusal trauma
leeway spaces
traumatic overbite

30. Mandible moves to the right or left
primate spaces
physiologic occlusion
Maxillary posterior teeth vertical alignment
Lateral excursion

31. Usually indicative of moderate to sever perio and secondary occ trauma
posterior crossbite
pathologic tooth migration
Edge to edge bite occurs when
Intercuspation

32. Mandibular molars and maxillary molars are even
occlusal erosion
premature curve of spee
gingiva
flush terminal plane

33. Mvmt of the mandible in a direction anterior to centric occ
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
protrusive occlusion
posterior contact
Centric occlusion is also called

34. Contact between maxillary incisors does not line up with contact of mandibular incisors
late curve of spee
functional contacts
Midline deviation
primate spaces

35. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
functional contacts
leeway spaces
class II - div 2
splinting

36. Survival of the dentition despite its deviation from a preconceived hypothetical normal
From a frontal view - anterior teeth lean ___
physiologic occlusion
labialversion or buccoversion
premature curve of spee

37. 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
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Underjet
secondary occlusal trauma
Overbit

38. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
class II - div 2
curve of wilson
open bite
Malocclusion

39. Both sides
Bilateral crossbite occurs on...
divisions of parafunctional contacts
occlusal erosion
molar relationship

40. Buck teeth are common and are considered
linguoversion
class II malocclusion
occlusal trauma
Underjet

41. Curve of the occlusal plane; from anterior to posterior - increases with age
curve of spee
Attrition
gingiva
leeway spaces

42. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
causes of open bite
posterior crossbite
vertical overlap
Hereditary factors include

43. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
anterior crossbite
normal overbite
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
Glickman 1963

44. When no teeth are contacting on this side
dynamic occlusion
Crossbite
Underjet
Nonworking side

45. Mesognathic profile
class I
occlusal erosion
Centric occlusion is also called
class III

46. Relationship of the arches bone to bone;
centric relation
centric occlusion - centric relation - protrusive and lateral movements
end to end
Open bite

47. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
conditions that occur in class I malocclusion
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Curve of Spee
class III

48. Mobility - migration - pain - premature contact - widening of PDL - parafuntional habits - TMJ problems - all result in _________
primate spaces
Bilateral crossbite occurs on...
edge to edge
occlusal trauma

49. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)
late curve of spee
Acromegaly
divisions of parafunctional contacts
class II - div 2

50. Vertical overlapping
Centric(habitual) occlusion
infraversion
overbite
protrusive occlusion