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. 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
Overbit
normal overbite
non working or balancing side
selective grinding or occlusal equilibration

2. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
Centric occlusion is also called
From a frontal view - anterior teeth lean ___
class I
openbite

3. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
horizontal overlap
traumatic overbite
If the condyles continue to grow - extreme mesial step will turn into ___
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs

4. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
Occlusion can be affected by
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
protrusive occlusion
crossbite

5. Tooth positioned more lingual
linguoversion
class II - div 1
Premature contact
open bite

6. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
Underjet
Nonworking side
other names for centric occlusion
codestructive theory

7. Survival of the dentition despite its deviation from a preconceived hypothetical normal
premature occlusal contact
posterior contact
canine relationship
physiologic occlusion

8. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
Maxillary posterior teeth vertical alignment
tooth mobility
centric occlusion - centric relation - protrusive and lateral movements
Centric occlusion is also called

9. Buck teeth are common and are considered
Hereditary factors include
normal curve of spee
class II malocclusion
Occlusion can be affected by

10. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
vertical overlap
other names for centric occlusion
Overjet
Intercuspation

11. Excessive occ force with adequate bone support =
splinting
conditions that occur in class II - div 2
primary occlusal trauma
non working or balancing side

12. II (mal)occlusion
Midline deviation
Centric occlusion is also called
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
conditions that occur in class III

13. Below occlusal plane
canine relationship
anterior teeth
class II division I occlusion
infraversion

14. Guidance for protrusive occ should be on the
conditions that occur in class I malocclusion
anterior teeth
molar relationship
An ideal curve of spee would be

15. Laterally
canine relationship
pathologic occlusion
From a frontal view - anterior teeth lean ___
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___

16. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
parafunctional contacts
left working movement
crossbite
conditions that occur in class II - div I

17. The way you normally bite your teeth together when not chewing
Centric(habitual) occlusion
class III - classificaiton
group function
An ideal curve of spee would be

18. Overlap of anterior teeth
Retrusion
curve of wilson
Midline deviation
vertical overlap

19. Primary teeth set ___________________ for permanent
curve of wilson
crestal funneling
occlusion pattern
class I

20. Starts closer to premolars
premature curve of spee
left working movement
severe overbite
primary occlusal trauma

21. Incisal 3rd
crestal funneling
pathologic occlusion
normal overbite
intercuspation

22. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
Premature contact
occlusion pattern
end to end
overjet

23. Later
non working or balancing side
Condyles of the mandible continue grow ___than the maxilla
class III - classificaiton
underjet

24. Mesognathic profile
hawley appliance
class I
Bilateral crossbite occurs on...
underjet

25. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
Midline deviation
occlusal trauma
Curve of Spee
traumatic overbite

26. #7 - 26 - 27
crossbite
inter-arch
centric relation
Premature contact

27. Horizontal distance of anterior teeth in crossbite
underjet
Overjet
moderate overbite
traumatogenic occlusion

28. ____ is not a sign of occl trauma
occlusal erosion
Open bite
molar relationship
Edge to edge bite occurs when

29. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
open bite
decrease over time
curve of wilson
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

30. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
If the condyles continue to grow - extreme mesial step will turn into ___
causes of primary occlusal trauma
Overjet is a ___ measurement
fremitus

31. Above occlusal plane
Unilateral crossbite occurs when
How the diastemas are closed up(including primates spaces)
supraversion
Underjet

32. Widening of the PDL in areas under pressure results due to
osteoclast resorption
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
protrusive occlusion
overjet

33. Relationship of the teeth in opposite arches; static position
centric occlusion
secondary occlusal trauma
causes of open bite
occlusal trauma

34. Retrognathic profile
Condyles of the mandible continue grow ___than the maxilla
canine guidance or protection
causes of open bite
class II

35. During protrusive occ - ______ is considered undesirable
posterior contact
pathologic tooth migration
premature occlusal contact
Condyles of the mandible continue grow ___than the maxilla

36. Spaces between two teeth
Overjet
diastemas
normal curve of spee
primate spaces

37. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion
Open bite
drifted mesial
conditions that occur in class III
centric relation

38. Maxillary overlap mandibular; whole arch
horizontal overlap
torsoversion
posterior crossbite
premature occlusal contact

39. 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
drifted mesial
Attrition
Overbit
primate spaces

40. The side to which the mandible moves(chewing side)
How the diastemas are closed up(including primates spaces)
Working side
supraversion
posterior contact

41. Radiographically - the PDL space is wider at the coronal third of the root
Overbite is a ___ measurement
Maxillary posterior teeth vertical alignment
labialversion or buccoversion
crestal funneling

42. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
selective grinding or occlusal equilibration
dynamic occlusion
interdigitation
left working movement

43. Mobility - migration - pain - premature contact - widening of PDL - parafuntional habits - TMJ problems - all result in _________
fremitus
How the diastemas are closed up(including primates spaces)
molar relationship
occlusal trauma

44. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made
Acromegaly
posterior crossbite
Occlusion can be affected by
centric relation

45. Max canine occludes with mand. canine and mand. 1st premolar.
If the condyles continue to grow - extreme mesial step will turn into ___
canine relationship
Abfraction
premature occlusal contact

46. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus
physiologic occlusion
curve of spee
traumatogenic occlusion
linguoversion

47. A continuation of the spee of to extend through the condyle
Curve of Wilson
An ideal curve of spee would be
If the condyles continue to grow - extreme mesial step will turn into ___
centric occlusion - centric relation - protrusive and lateral movements

48. Mandibular molars and maxillary molars are even
curve of monson
flush terminal plane
traumatic overbite
Occlusion can be affected by

49. Contact between maxillary incisors does not line up with contact of mandibular incisors
Midline deviation
conditions that occur in class II - div I
splinting
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___

50. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
Acromegaly
causes of primary occlusal trauma
Leeway space
underjet