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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. Horizontal
occlusion
occlusal erosion
flush terminal plane
Overjet is a ___ measurement
2. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
causes of open bite
centric occlusion
causes of primary occlusal trauma
traumatogenic occlusion
3. Occlusal guard =
hawley appliance
Occlusion can be affected by
Acromegaly
Open bite
4. #10 & #23
occlusion pattern
canine relationship
openbite
centric occlusion
5. Crowns tipped lingually - roots tipped laterally
functional occlusion
Mandibular posterior teeth vertical alignment
Overjet
Curve of Spee
6. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
curve of spee
Occlusion can be affected by
mesial step
canine relationship
7. Maxillary-between canines and laterals - mandibular-between canines and 1st molars
primate spaces
occlusion
class II division I occlusion
distal step
8. Contact between maxillary incisors does not line up with contact of mandibular incisors
Midline deviation
class II - div 1
mesial step
Overbite is a ___ measurement
9. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
Condyles of the mandible continue grow ___than the maxilla
Curve of Spee
leeway spaces
From a frontal view - anterior teeth lean ___
10. Functional occlusion
physiologic occlusion
protrusive occlusion
overbite
dynamic occlusion
11. Lateral mvmt results in contacct of all posterior teeth
group function
physiologic occlusion
interdigitation
occlusion
12. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
class II - div 2
occlusal trauma
class II - div 1
premature occlusal contact
13. Prognathic profile; buccal groove of mand. 1st molar-mesial to mb cusp of max. 1st molar; distal of mand. canine mesial to mesial of max canine; tendency toward class III
class III - classificaiton
Leeway space
overjet
curve of monson
14. Mandible moves to the right or left
Lateral excursion
curve of monson
occlusion pattern
Centric relation
15. Curve spee & wilson - 3-d - not proven
curve of monson
bone support
conditions that occur in class III
traumatic overbite
16. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
conditions that occur in class II - div I
infraversion
leeway spaces
Overbit
17. Vertical
Condyles of the mandible continue grow ___than the maxilla
hawley appliance
Overbite is a ___ measurement
gingiva
18. Posterior; no horizontal overlap
end to end
decrease over time
codestructive theory
premature curve of spee
19. Maximal intercuspation or contact of the max and mand teeth
centric occlusion
Leeway space
late curve of spee
tooth mobility
20. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift
posterior crossbite
horizontal overlap
Edge to edge bite occurs when
conditions that occur in class I malocclusion
21. Habitual - acquired - convenience - intercuspal & static
overbite
other names for centric occlusion
Open bite
Lateral excursion
22. Excessive occ force with adequate bone support =
traumatogenic occlusion
Intercuspation
primary occlusal trauma
Acromegaly
23. Curved alignment of the occlusal plane when looking from a posterior view(right to left)
causes of primary occlusal trauma
premature curve of spee
non working or balancing side
Curve of Wilson
24. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
posterior crossbite
Overjet is a ___ measurement
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
hawley appliance
25. Below occlusal plane
class II - div 2
Overjet
hawley appliance
infraversion
26. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made
occlusal trauma
centric relation
underjet
group function
27. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
parafunctional contacts
tooth mobility
occlusal trauma
Hereditary factors include
28. Laterally
codestructive theory
splinting
Attrition
From a frontal view - anterior teeth lean ___
29. Maximum interlocking of cusp
Condyles of the mandible continue grow ___than the maxilla
hawley appliance
fremitus
intercuspation
30. 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
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
Overjet
parafunctional contacts
fremitus
31. Abnormal contacts; occlusal habits - and neuroses
open bite
Dentures
curve of spee
parafunctional contacts
32. Excessive deposition of cementum around the apex - due to excessive occlusal forces
physiologic occlusion
Abfraction
hypercementosis
gingiva
33. Spaces between two teeth
Acromegaly
diastemas
conditions that occur in class II - div 2
Open bite
34. Starts closer to the posterior of the 1st molar
late curve of spee
labialversion or buccoversion
class II - div 2
Dentures
35. Mandibular molars more mesial than maxillary molars (most children)
An ideal curve of spee would be
vertical overlap
Retrusion
mesial step
36. 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
Working side
Unilateral crossbite occurs when
selective grinding or occlusal equilibration
osteoclast resorption
37. Permits healing of the attachment apparatus by holding a tooth in a totally fixed position; allows the PDL to become narrower and the mobility to be reduced
splinting
crestal funneling
labialversion or buccoversion
open bite
38. If the mandible moves to the left - the mvmt is known as a left working movement
selective grinding or occlusal equilibration
gingiva
left working movement
hypercementosis
39. Both sides
Bilateral crossbite occurs on...
class III - classificaiton
occlusal trauma
divisions of parafunctional contacts
40. Tooth positioned more lingual
linguoversion
overjet
supraversion
Acromegaly
41. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
Mandibular posterior teeth vertical alignment
How the diastemas are closed up(including primates spaces)
protrusive occlusion
conditions that occur in class II - div 2
42. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)
Acromegaly
intercuspation
other names for centric occlusion
leeway spaces
43. Widening of the PDL in areas under pressure results due to
canine guidance or protection
secondary occlusal trauma
osteoclast resorption
left working movement
44. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact
inflammation
conditions that occur in class II - div I
divisions of parafunctional contacts
Premature contact
45. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
Centric relation
Centric occlusion is also called
functional occlusion
curve of wilson
46. Maxillary anterior teeth stick out labially from tongue thrusting
Open bite
Crossbite
Protrusion
curve of wilson
47. The permanent molars erupt posterior to the primary teeth and push them all mesially
left working movement
edge to edge
overbite
How the diastemas are closed up(including primates spaces)
48. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
Retrusion
physiologic occlusion
Intercuspation
Curve of Spee
49. What is not affected by occ trauma
gingiva
posterior crossbite
protrusive occlusion
malocclusion
50. The side to which the mandible moves(chewing side)
Malocclusion
class I
Working side
canine guidance or protection