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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. Laterally
class III
functional occlusion
Working side
From a frontal view - anterior teeth lean ___
2. Associated with performance; all contacts during function of the oral cavity
overbite
mesial step
occlusal trauma
functional occlusion
3. Teeth that are in func when the mandible moves in lateral or protrusive excursions or mvmts
class II - div 2
functional occlusion
Occlusion can be affected by
posterior contact
4. The patient is constantly tightening the lower lip against the lower anterior teeth causing the the mandibular teeth to be pushed back into the mouth by this overdeveloped lower lip
gingiva
Retrusion
occlusal erosion
protrusive occlusion
5. When no teeth are contacting on this side
centric occlusion
open bite
An ideal curve of spee would be
Nonworking side
6. Excessive occ force with adequate bone support =
class II - div 1
Crossbite
primary occlusal trauma
Retrusion
7. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
hypercementosis
Malocclusion
primate spaces
leeway spaces
8. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made
torsoversion
selective grinding or occlusal equilibration
centric relation
Abfraction
9. During a left working movement - the right side is known as the
centric occlusion
non working or balancing side
Curve of Wilson
Glickman 1963
10. Below occlusal plane
posterior contact
infraversion
Midline deviation
codestructive theory
11. Primary teeth set ___________________ for permanent
occlusion pattern
diastemas
molar relationship
occlusal trauma
12. A continuation of the spee of to extend through the condyle
An ideal curve of spee would be
conditions that occur in class II - div 2
How the diastemas are closed up(including primates spaces)
Premature contact
13. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
Unilateral crossbite occurs when
curve of wilson
Overjet
premature occlusal contact
14. 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
fremitus
Overbit
edge to edge
Malocclusion
15. Excessive deposition of cementum around the apex - due to excessive occlusal forces
normal overbite
Occlusion can be affected by
hypercementosis
Overjet
16. Starts around the mesial of the 1st molar
Intercuspation
normal curve of spee
Abfraction
divisions of parafunctional contacts
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
crossbite
overjet
decrease over time
Intercuspation
18. 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
occlusion
Unilateral crossbite occurs when
Edge to edge bite occurs when
premature curve of spee
19. Individual teeth from each arch can be involved in ________________ malocclusion
pathologic occlusion
protrusive occlusion
openbite
inter-arch
20. Overlap of anterior teeth
causes of primary occlusal trauma
Lateral excursion
vertical overlap
anterior crossbite
21. Mvmt of the mandible in a direction anterior to centric occ
occlusal trauma
Dentures
protrusive occlusion
drifted mesial
22. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
tooth mobility
canine guidance or protection
drifted mesial
traumatic overbite
23. During selective grinding - occlusion should be adjusted In what four relationships
mesial step
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
centric occlusion - centric relation - protrusive and lateral movements
class II division I occlusion
24. Widening of the PDL in areas under pressure results due to
occlusal trauma
functional occlusion
class II
osteoclast resorption
25. During protrusive occ - ______ is considered undesirable
class III
conditions that occur in class II - div 2
malocclusion
posterior contact
26. What is not affected by occ trauma
posterior contact
hawley appliance
gingiva
causes of primary occlusal trauma
27. Survival of the dentition despite its deviation from a preconceived hypothetical normal
Centric occlusion is also called
excessive occlusal force
physiologic occlusion
normal overbite
28. Functional occlusion
dynamic occlusion
curve of monson
curve of wilson
Lateral excursion
29. After periodontal sugery - mobility will ________
inflammation
decrease over time
Midline deviation
Crossbite
30. Incisal 3rd
normal overbite
Mandibular posterior teeth vertical alignment
temporalis and masseter
pathologic tooth migration
31. Mesially - Labially
normal curve of spee
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Mandibular posterior teeth vertical alignment
Unilateral crossbite occurs when
32. Mesognathic profile
functional contacts
class I
functional occlusion
end to end
33. Muscles that work the jaw; may become sore due to occ trauma
normal overbite
occlusal trauma
overbite
temporalis and masseter
34. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth
Maxillary posterior teeth vertical alignment
posterior crossbite
Unilateral crossbite occurs when
malocclusion
35. Usually indicative of moderate to sever perio and secondary occ trauma
hypercementosis
pathologic tooth migration
Condyles of the mandible continue grow ___than the maxilla
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
36. Vertical overlapping
overbite
temporalis and masseter
occlusal trauma
secondary occlusal trauma
37. The way you normally bite your teeth together when not chewing
Centric(habitual) occlusion
bone support
splinting
openbite
38. Middle 3rd
Dentures
Edge to edge bite occurs when
moderate overbite
posterior crossbite
39. Relationship of the arches bone to bone;
diastemas
curve of wilson
horizontal overlap
centric relation
40. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
gingiva
Occlusion can be affected by
Centric occlusion is also called
pathologic occlusion
41. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
Condyles of the mandible continue grow ___than the maxilla
Leeway space
diastemas
Occlusion can be affected by
42. Anterior or posterior; bilateral or unitlateral - anterior more common
overbite
open bite
conditions that occur in class II - div 2
conditions that occur in class III
43. Vibrational mvmt of a tooth under occ function
conditions that occur in class III
horizontal overlap
fremitus
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
44. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
bone support
Overbit
secondary occlusal trauma
late curve of spee
45. Maxillary overlap mandibular; whole arch
severe overbite
horizontal overlap
pathologic occlusion
supraversion
46. Radiographically - the PDL space is wider at the coronal third of the root
crestal funneling
moderate overbite
conditions that occur in class II - div 2
curve of spee
47. 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
group function
Attrition
Midline deviation
48. Prognathic profile
class III
malocclusion
Intercuspation
Glickman 1963
49. Starts closer to premolars
tooth mobility
horizontal overlap
premature curve of spee
flush terminal plane
50. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
Unilateral crossbite occurs when
mesial step
malocclusion
Premature contact