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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. 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
Misalignment of teeth
left working movement
centric occlusion
Overbit
2. Mandibular molars more distal than maxillary molars
left working movement
class I
distal step
centric occlusion
3. A continuation of the spee of to extend through the condyle
crossbite
osteoclast resorption
An ideal curve of spee would be
Centric occlusion is also called
4. Maximum interlocking of cusp
Overjet
functional contacts
intercuspation
conditions that occur in class III
5. 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
Hereditary factors include
Unilateral crossbite occurs when
splinting
labialversion or buccoversion
6. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
class II malocclusion
Hereditary factors include
functional contacts
torsoversion
7. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
canine guidance or protection
Curve of Spee
Overjet
secondary occlusal trauma
8. ____ is not a sign of occl trauma
occlusal erosion
conditions that occur in class II - div I
Curve of Spee
mesial step
9. Buck teeth are common and are considered
Occlusion can be affected by
class II division I occlusion
class II malocclusion
Centric relation
10. Tooth extracted
Bilateral crossbite occurs on...
drifted mesial
molar relationship
conditions that occur in class II - div 2
11. Associated with performance; all contacts during function of the oral cavity
functional occlusion
How the diastemas are closed up(including primates spaces)
infraversion
class II
12. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)
centric occlusion
From a frontal view - anterior teeth lean ___
Acromegaly
Mandibular posterior teeth vertical alignment
13. Mobility - migration - pain - premature contact - widening of PDL - parafuntional habits - TMJ problems - all result in _________
Overjet
class III - classificaiton
Working side
occlusal trauma
14. #7 - 26 - 27
crossbite
Underjet
Mandibular posterior teeth vertical alignment
Centric(habitual) occlusion
15. Vertical
Overjet
occlusal erosion
bone support
Overbite is a ___ measurement
16. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
temporalis and masseter
occlusion pattern
anterior crossbite
From a frontal view - anterior teeth lean ___
17. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
Protrusion
Glickman 1963
Abfraction
traumatic overbite
18. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract
How the diastemas are closed up(including primates spaces)
protrusive occlusion
Centric relation
canine relationship
19. Spaces between two teeth
Overjet is a ___ measurement
occlusion
Acromegaly
diastemas
20. Mandibular molars and maxillary molars are even
Maxillary posterior teeth vertical alignment
flush terminal plane
overjet
left working movement
21. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
conditions that occur in class I malocclusion
occlusal trauma
tooth mobility
openbite
22. Cusps of maxillary teeth directly over cusps of mandibular teeth
group function
causes of primary occlusal trauma
underjet
Edge to edge bite occurs when
23. Anterior or posterior; bilateral or unitlateral - anterior more common
non working or balancing side
Occlusion can be affected by
class II - div 2
open bite
24. Mvmt of the mandible in a direction anterior to centric occ
protrusive occlusion
Underjet
conditions that occur in class II - div 2
group function
25. Survival of the dentition despite its deviation from a preconceived hypothetical normal
Curve of Spee
premature occlusal contact
physiologic occlusion
Abfraction
26. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
left working movement
causes of open bite
Protrusion
secondary occlusal trauma
27. Occlusal guard =
Unilateral crossbite occurs when
premature curve of spee
posterior contact
hawley appliance
28. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
functional occlusion
Premature contact
crossbite
premature curve of spee
29. During selective grinding - occlusion should be adjusted In what four relationships
moderate overbite
primary occlusal trauma
centric occlusion - centric relation - protrusive and lateral movements
occlusion pattern
30. Tongue thrust or thumb sucking can cause
leeway spaces
An ideal curve of spee would be
class II division I occlusion
inflammation
31. Rotated or twisted; rotated mesial or distal
premature curve of spee
Condyles of the mandible continue grow ___than the maxilla
torsoversion
canine relationship
32. Normal contacts between max. and mand. teeth; momentary contacts
interdigitation
posterior contact
functional contacts
class III - classificaiton
33. Tooth positioned more facial
overbite
labialversion or buccoversion
curve of monson
Curve of Spee
34. Relationship of the arches bone to bone;
centric relation
conditions that occur in class III
Misalignment of teeth
functional occlusion
35. Guidance for protrusive occ should be on the
anterior teeth
Acromegaly
occlusal trauma
hawley appliance
36. Max canine occludes with mand. canine and mand. 1st premolar.
conditions that occur in class III
flush terminal plane
canine relationship
group function
37. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
Attrition
flush terminal plane
centric relation
conditions that occur in class II - div 2
38. Horizontal distance of anterior teeth in crossbite
underjet
anterior teeth
primary occlusal trauma
Midline deviation
39. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations
If the condyles continue to grow - extreme mesial step will turn into ___
excessive occlusal force
supraversion
canine relationship
40. Retrognathic profile
inter-arch
class II
selective grinding or occlusal equilibration
hawley appliance
41. Mb cusp of max 1st molar-buccal groove of mand 1st molar
canine relationship
centric occlusion - centric relation - protrusive and lateral movements
molar relationship
group function
42. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together
left working movement
occlusion
causes of open bite
leeway spaces
43. 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
Nonworking side
flush terminal plane
pathologic tooth migration
44. Cervical 3rd
severe overbite
distal step
conditions that occur in class II - div I
osteoclast resorption
45. Mesognathic profile
functional occlusion
conditions that occur in class I malocclusion
class I
group function
46. 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
centric relation
Underjet
openbite
47. Primary teeth set ___________________ for permanent
occlusion pattern
functional contacts
class III
occlusal erosion
48. 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
parafunctional contacts
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Attrition
Occlusion can be affected by
49. Below occlusal plane
Misalignment of teeth
linguoversion
Curve of Wilson
infraversion
50. Individual teeth from each arch can be involved in ________________ malocclusion
functional occlusion
Midline deviation
inter-arch
normal curve of spee