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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. Patients show evidence or signs and syptoms of occ disease
conditions that occur in class I malocclusion
class III - classificaiton
class II - div 1
pathologic occlusion
2. 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
excessive occlusal force
Overbit
occlusion pattern
conditions that occur in class III
3. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)
causes of primary occlusal trauma
Acromegaly
protrusive occlusion
From a frontal view - anterior teeth lean ___
4. 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
malocclusion
Condyles of the mandible continue grow ___than the maxilla
Bilateral crossbite occurs on...
Abfraction
5. Above occlusal plane
fremitus
supraversion
Centric occlusion is also called
posterior contact
6. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together
Curve of Wilson
Dentures
occlusion
premature occlusal contact
7. Prognathic profile
centric relation
overjet
class III
Overjet
8. Associated with performance; all contacts during function of the oral cavity
anterior crossbite
functional contacts
supraversion
functional occlusion
9. Lateral mvmt results in contacct of all posterior teeth
group function
vertical overlap
openbite
diastemas
10. Guidance for protrusive occ should be on the
inflammation
Occlusion can be affected by
anterior teeth
dynamic occlusion
11. Cusps of maxillary teeth directly over cusps of mandibular teeth
conditions that occur in class II - div 2
traumatogenic occlusion
Edge to edge bite occurs when
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
12. Need tooth to tooth contact on both working and non working sides to func effectively
class II
Dentures
centric occlusion - centric relation - protrusive and lateral movements
class II division I occlusion
13. Tongue thrust or thumb sucking can cause
Dentures
class II division I occlusion
underjet
class III - classificaiton
14. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
Unilateral crossbite occurs when
anterior crossbite
gingiva
traumatic overbite
15. Excessive occ force with adequate bone support =
Overbit
primary occlusal trauma
non working or balancing side
gingiva
16. Mandibular molars more distal than maxillary molars
gingiva
distal step
centric occlusion - centric relation - protrusive and lateral movements
primate spaces
17. Overlap of anterior teeth
edge to edge
vertical overlap
inter-arch
conditions that occur in class I malocclusion
18. Normal contacts between max. and mand. teeth; momentary contacts
linguoversion
functional contacts
Hereditary factors include
open bite
19. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
Centric occlusion is also called
linguoversion
Curve of Spee
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
20. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
class II division I occlusion
curve of wilson
physiologic occlusion
Open bite
21. Tooth positioned more facial
functional contacts
Malocclusion
labialversion or buccoversion
Midline deviation
22. Horizontal distance of anterior teeth in crossbite
curve of spee
premature occlusal contact
Unilateral crossbite occurs when
underjet
23. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
overjet
causes of primary occlusal trauma
Overjet
openbite
24. Relationship of the teeth in opposite arches; static position
Mandibular posterior teeth vertical alignment
Maxillary posterior teeth vertical alignment
An ideal curve of spee would be
centric occlusion
25. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
Premature contact
secondary occlusal trauma
functional occlusion
severe overbite
26. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
inter-arch
posterior crossbite
Working side
Centric(habitual) occlusion
27. Vertical
flush terminal plane
Overbite is a ___ measurement
causes of open bite
dynamic occlusion
28. During selective grinding - occlusion should be adjusted In what four relationships
centric occlusion
From a frontal view - anterior teeth lean ___
centric occlusion - centric relation - protrusive and lateral movements
occlusal trauma
29. Teeth are misaligned when biting together
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
conditions that occur in class II - div I
Malocclusion
parafunctional contacts
30. 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
centric relation
distal step
Unilateral crossbite occurs when
class III - classificaiton
31. 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
functional occlusion
dynamic occlusion
conditions that occur in class II - div 2
32. 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
underjet
Unilateral crossbite occurs when
Misalignment of teeth
pathologic occlusion
33. Lateral mvmt results in contact btwn the max and mand canines
canine guidance or protection
overjet
labialversion or buccoversion
Overbite is a ___ measurement
34. Rotated or twisted; rotated mesial or distal
Attrition
Nonworking side
Open bite
torsoversion
35. Most common cause is when the maxilla does not grow in proportion to the mandible
conditions that occur in class I malocclusion
hawley appliance
Crossbite
Glickman 1963
36. 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
Retrusion
linguoversion
Intercuspation
osteoclast resorption
37. Posterior; no horizontal overlap
edge to edge
end to end
Lateral excursion
conditions that occur in class II - div I
38. Mesognathic profile
hypercementosis
class I
centric relation
Crossbite
39. Survival of the dentition despite its deviation from a preconceived hypothetical normal
mesial step
open bite
physiologic occlusion
occlusal trauma
40. Primary teeth set ___________________ for permanent
curve of spee
Overbite is a ___ measurement
occlusion pattern
physiologic occlusion
41. Muscles that work the jaw; may become sore due to occ trauma
Bilateral crossbite occurs on...
non working or balancing side
temporalis and masseter
centric relation
42. Maximal intercuspation or contact of the max and mand teeth
occlusal erosion
centric occlusion
Attrition
Abfraction
43. Mb cusp of max 1st molar-buccal groove of mand 1st molar
class III
posterior contact
molar relationship
Mandibular posterior teeth vertical alignment
44. The permanent molars erupt posterior to the primary teeth and push them all mesially
moderate overbite
How the diastemas are closed up(including primates spaces)
Centric relation
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
45. Difference between primary and secondary occ trauma
Acromegaly
functional occlusion
Bilateral crossbite occurs on...
bone support
46. The side to which the mandible moves(chewing side)
interdigitation
physiologic occlusion
linguoversion
Working side
47. During a left working movement - the right side is known as the
non working or balancing side
Intercuspation
Midline deviation
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
48. Widening of the PDL in areas under pressure results due to
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
osteoclast resorption
hypercementosis
posterior crossbite
49. During protrusive occ - ______ is considered undesirable
posterior contact
excessive occlusal force
physiologic occlusion
Retrusion
50. Contact between maxillary incisors does not line up with contact of mandibular incisors
Midline deviation
How the diastemas are closed up(including primates spaces)
premature curve of spee
class II - div 1