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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. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made
Glickman 1963
centric relation
non working or balancing side
inflammation
2. #10 & #23
openbite
inter-arch
From a frontal view - anterior teeth lean ___
curve of wilson
3. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth
Mandibular posterior teeth vertical alignment
malocclusion
Abfraction
Centric occlusion is also called
4. Curve spee & wilson - 3-d - not proven
curve of monson
class II division I occlusion
Misalignment of teeth
Dentures
5. Teeth that are in func when the mandible moves in lateral or protrusive excursions or mvmts
Edge to edge bite occurs when
functional occlusion
conditions that occur in class II - div 2
hawley appliance
6. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
secondary occlusal trauma
mesial step
Bilateral crossbite occurs on...
posterior crossbite
7. Mandibular molars more mesial than maxillary molars (most children)
conditions that occur in class III
centric relation
conditions that occur in class II - div 2
mesial step
8. Normal contacts between max. and mand. teeth; momentary contacts
functional contacts
Intercuspation
causes of primary occlusal trauma
conditions that occur in class I malocclusion
9. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
Hereditary factors include
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Bilateral crossbite occurs on...
linguoversion
10. Tooth positioned more facial
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Intercuspation
labialversion or buccoversion
occlusion
11. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
leeway spaces
anterior crossbite
If the condyles continue to grow - extreme mesial step will turn into ___
class II - div 2
12. If the mandible moves to the left - the mvmt is known as a left working movement
crestal funneling
left working movement
Edge to edge bite occurs when
Centric(habitual) occlusion
13. What is not affected by occ trauma
excessive occlusal force
gingiva
Mandibular posterior teeth vertical alignment
Overbit
14. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
other names for centric occlusion
torsoversion
inter-arch
causes of primary occlusal trauma
15. A continuation of the spee of to extend through the condyle
linguoversion
curve of wilson
tooth mobility
An ideal curve of spee would be
16. Slight buccal inclination of crown - lingual inclination of root
normal curve of spee
Acromegaly
functional occlusion
Maxillary posterior teeth vertical alignment
17. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
anterior teeth
conditions that occur in class II - div I
openbite
premature occlusal contact
18. 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
Attrition
Protrusion
functional occlusion
class II - div 2
19. Vertical overlapping
primary occlusal trauma
selective grinding or occlusal equilibration
overbite
occlusal trauma
20. Both sides
Centric relation
Bilateral crossbite occurs on...
centric occlusion
Overjet
21. Radiographically - the PDL space is wider at the coronal third of the root
centric occlusion
Maxillary posterior teeth vertical alignment
crestal funneling
Underjet
22. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
distal step
canine guidance or protection
edge to edge
occlusal trauma
23. Functional occlusion
dynamic occlusion
centric occlusion
distal step
curve of monson
24. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
primate spaces
posterior crossbite
drifted mesial
Occlusion can be affected by
25. Mb cusp of max 1st molar-buccal groove of mand 1st molar
anterior teeth
molar relationship
centric occlusion - centric relation - protrusive and lateral movements
primate spaces
26. Relationship of the teeth in opposite arches; static position
hawley appliance
centric occlusion
fremitus
Dentures
27. Mandible moves to the right or left
Nonworking side
Lateral excursion
supraversion
drifted mesial
28. 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 a frontal view - anterior teeth lean ___
Overbit
posterior crossbite
Centric relation
29. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
premature occlusal contact
centric occlusion
left working movement
Retrusion
30. Curved alignment of the occlusal plane when looking from a posterior view(right to left)
leeway spaces
Curve of Wilson
Bilateral crossbite occurs on...
Occlusion can be affected by
31. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
codestructive theory
class I
late curve of spee
osteoclast resorption
32. Maximum interlocking of cusp
splinting
intercuspation
Mandibular posterior teeth vertical alignment
codestructive theory
33. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift
occlusal trauma
conditions that occur in class I malocclusion
An ideal curve of spee would be
edge to edge
34. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
anterior crossbite
open bite
tooth mobility
traumatic overbite
35. Cusps of maxillary teeth directly over cusps of mandibular teeth
Edge to edge bite occurs when
late curve of spee
malocclusion
splinting
36. 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
Abfraction
Overjet
overbite
posterior contact
37. Individual teeth from each arch can be involved in ________________ malocclusion
inter-arch
class III
centric relation
canine relationship
38. #7 - 26 - 27
physiologic occlusion
secondary occlusal trauma
Centric relation
crossbite
39. Max canine occludes with mand. canine and mand. 1st premolar.
class I
Leeway space
Mandibular posterior teeth vertical alignment
canine relationship
40. Measurement of horizontal overlap w/ probe
overjet
inter-arch
anterior crossbite
normal overbite
41. Starts around the mesial of the 1st molar
Nonworking side
anterior teeth
Midline deviation
normal curve of spee
42. Maxillary-between canines and laterals - mandibular-between canines and 1st molars
functional contacts
pathologic occlusion
overbite
primate spaces
43. ____ is not a sign of occl trauma
class I
distal step
occlusal erosion
curve of spee
44. Cervical 3rd
conditions that occur in class I malocclusion
functional occlusion
pathologic occlusion
severe overbite
45. 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
interdigitation
group function
crossbite
Overjet
46. Below occlusal plane
occlusion pattern
late curve of spee
infraversion
From a frontal view - anterior teeth lean ___
47. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
causes of primary occlusal trauma
class II - div 1
tooth mobility
posterior contact
48. Habitual - acquired - convenience - intercuspal & static
Centric(habitual) occlusion
causes of primary occlusal trauma
openbite
other names for centric occlusion
49. Maximal intercuspation or contact of the max and mand teeth
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
centric occlusion
vertical overlap
drifted mesial
50. 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
Overjet is a ___ measurement
class II - div 1
Curve of Wilson
Lateral excursion