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Test your basic knowledge |
Dentistry Occlusion
Start Test
Study First
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. If the mandible moves to the left - the mvmt is known as a left working movement
Abfraction
Malocclusion
tooth mobility
left working movement
2. Anterior; no horizontal overlap
openbite
crossbite
edge to edge
osteoclast resorption
3. Buck teeth are common and are considered
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Open bite
pathologic occlusion
class II malocclusion
4. Tooth positioned more lingual
functional contacts
centric relation
linguoversion
Open bite
5. The permanent molars erupt posterior to the primary teeth and push them all mesially
Attrition
primary occlusal trauma
labialversion or buccoversion
How the diastemas are closed up(including primates spaces)
6. Occlusal guard =
hawley appliance
flush terminal plane
class II
conditions that occur in class II - div 2
7. Starts around the mesial of the 1st molar
normal curve of spee
anterior teeth
inter-arch
Curve of Wilson
8. Mvmt of the mandible in a direction anterior to centric occ
inter-arch
other names for centric occlusion
divisions of parafunctional contacts
protrusive occlusion
9. Mandible moves to the right or left
class II division I occlusion
Lateral excursion
canine relationship
Overbit
10. Patients show evidence or signs and syptoms of occ disease
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
pathologic occlusion
Overjet is a ___ measurement
drifted mesial
11. Selective grinding should always be completed after ______ has been controlled
flush terminal plane
inflammation
dynamic occlusion
parafunctional contacts
12. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
Curve of Spee
openbite
anterior teeth
codestructive theory
13. Curved alignment of the occlusal plane when looking from a posterior view(right to left)
tooth mobility
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
primate spaces
Curve of Wilson
14. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
leeway spaces
curve of wilson
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Glickman 1963
15. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations
Protrusion
non working or balancing side
excessive occlusal force
class III - classificaiton
16. Most common cause is when the maxilla does not grow in proportion to the mandible
class II - div 1
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
normal curve of spee
Crossbite
17. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
Unilateral crossbite occurs when
Acromegaly
Intercuspation
centric occlusion - centric relation - protrusive and lateral movements
18. Laterally
From a frontal view - anterior teeth lean ___
Unilateral crossbite occurs when
gingiva
Underjet
19. Mb cusp of max 1st molar-buccal groove of mand 1st molar
excessive occlusal force
Misalignment of teeth
molar relationship
Edge to edge bite occurs when
20. When no teeth are contacting on this side
Nonworking side
labialversion or buccoversion
Working side
occlusal trauma
21. Maxillary overlap mandibular; whole arch
occlusal erosion
horizontal overlap
class II
occlusion pattern
22. Patient forces teeth together in centric occlusion on one side to get a more functional bite and has a crossbite on the other side(the midline of the maxillary anterior teeth does not line up with the midlineof the mandible
Unilateral crossbite occurs when
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
centric relation
class II - div 1
23. During selective grinding - occlusion should be adjusted In what four relationships
Unilateral crossbite occurs when
normal overbite
centric occlusion - centric relation - protrusive and lateral movements
Underjet
24. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
curve of wilson
horizontal overlap
physiologic occlusion
An ideal curve of spee would be
25. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)
Centric occlusion is also called
Acromegaly
functional occlusion
gingiva
26. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
class II
decrease over time
causes of primary occlusal trauma
class III - classificaiton
27. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
curve of monson
distal step
Premature contact
centric relation
28. Excessive deposition of cementum around the apex - due to excessive occlusal forces
hypercementosis
temporalis and masseter
canine relationship
Nonworking side
29. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
posterior crossbite
Retrusion
functional occlusion
primate spaces
30. Vertical overlapping
Dentures
Hereditary factors include
overbite
flush terminal plane
31. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
traumatic overbite
malocclusion
How the diastemas are closed up(including primates spaces)
Centric occlusion is also called
32. A continuation of the spee of to extend through the condyle
mesial step
Lateral excursion
An ideal curve of spee would be
Underjet
33. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus
traumatogenic occlusion
Unilateral crossbite occurs when
supraversion
codestructive theory
34. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
drifted mesial
Occlusion can be affected by
severe overbite
traumatogenic occlusion
35. Middle 3rd
osteoclast resorption
centric relation
crossbite
moderate overbite
36. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
Crossbite
Intercuspation
conditions that occur in class II - div I
Hereditary factors include
37. Cervical 3rd
openbite
Curve of Wilson
severe overbite
supraversion
38. Later
molar relationship
Condyles of the mandible continue grow ___than the maxilla
Hereditary factors include
functional occlusion
39. Horizontal
centric relation
Intercuspation
supraversion
Overjet is a ___ measurement
40. Curve spee & wilson - 3-d - not proven
labialversion or buccoversion
class II malocclusion
curve of monson
canine relationship
41. Difference between primary and secondary occ trauma
canine relationship
class II - div 2
bone support
distal step
42. Need tooth to tooth contact on both working and non working sides to func effectively
causes of open bite
Curve of Wilson
Dentures
molar relationship
43. Teeth are misaligned when biting together
crossbite
Malocclusion
curve of spee
torsoversion
44. Contact between maxillary incisors does not line up with contact of mandibular incisors
Midline deviation
pathologic tooth migration
splinting
canine guidance or protection
45. Max canine occludes with mand. canine and mand. 1st premolar.
divisions of parafunctional contacts
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
class II
canine relationship
46. Horizontal distance of anterior teeth in crossbite
codestructive theory
Abfraction
underjet
curve of spee
47. During a left working movement - the right side is known as the
centric relation
labialversion or buccoversion
hypercementosis
non working or balancing side
48. Radiographically - the PDL space is wider at the coronal third of the root
late curve of spee
crestal funneling
curve of wilson
class III
49. Functional occlusion
crossbite
dynamic occlusion
bone support
Curve of Wilson
50. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
divisions of parafunctional contacts
traumatic overbite
class II - div 2
Bilateral crossbite occurs on...