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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. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
conditions that occur in class II - div 2
normal overbite
Intercuspation
centric occlusion - centric relation - protrusive and lateral movements
2. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
gingiva
openbite
tooth mobility
Hereditary factors include
3. Tooth positioned more facial
Centric relation
severe overbite
class II - div 2
labialversion or buccoversion
4. Maxillary incisors are are lingual to mandibular incisors
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
labialversion or buccoversion
Underjet
class I
5. Incisal 3rd
normal overbite
class II - div 2
class III - classificaiton
parafunctional contacts
6. Most common cause is when the maxilla does not grow in proportion to the mandible
hawley appliance
Crossbite
canine relationship
class II division I occlusion
7. Relationship of the teeth in opposite arches; static position
malocclusion
dynamic occlusion
centric occlusion
traumatic overbite
8. Spaces between two teeth
Overbite is a ___ measurement
diastemas
pathologic occlusion
Edge to edge bite occurs when
9. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
tooth mobility
anterior crossbite
hawley appliance
Open bite
10. Tooth extracted
Retrusion
centric occlusion - centric relation - protrusive and lateral movements
drifted mesial
Misalignment of teeth
11. 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
infraversion
splinting
inter-arch
class III
12. Horizontal distance of anterior teeth in crossbite
underjet
occlusion pattern
Centric relation
curve of spee
13. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
conditions that occur in class II - div I
centric occlusion
canine relationship
hypercementosis
14. II (mal)occlusion
other names for centric occlusion
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Condyles of the mandible continue grow ___than the maxilla
tooth mobility
15. 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
temporalis and masseter
moderate overbite
tooth mobility
16. Vibrational mvmt of a tooth under occ function
mesial step
dynamic occlusion
fremitus
distal step
17. Maxillary - Mandibular - Facial
group function
centric occlusion
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
Hereditary factors include
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
class II - div 1
Glickman 1963
functional occlusion
19. Radiographically - the PDL space is wider at the coronal third of the root
drifted mesial
functional occlusion
Hereditary factors include
crestal funneling
20. Cervical 3rd
canine guidance or protection
severe overbite
occlusion pattern
secondary occlusal trauma
21. 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
primate spaces
Overbit
Midline deviation
fremitus
22. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion
Open bite
Intercuspation
Protrusion
Maxillary posterior teeth vertical alignment
23. Maximum touching of max and mand
late curve of spee
dynamic occlusion
Nonworking side
interdigitation
24. Both sides
Condyles of the mandible continue grow ___than the maxilla
Bilateral crossbite occurs on...
underjet
anterior crossbite
25. Slight buccal inclination of crown - lingual inclination of root
hypercementosis
conditions that occur in class II - div 2
Maxillary posterior teeth vertical alignment
left working movement
26. The permanent molars erupt posterior to the primary teeth and push them all mesially
primary occlusal trauma
divisions of parafunctional contacts
canine relationship
How the diastemas are closed up(including primates spaces)
27. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
Maxillary posterior teeth vertical alignment
causes of primary occlusal trauma
infraversion
overjet
28. Tongue thrusting; thumb sucking - pacifiers
other names for centric occlusion
causes of open bite
flush terminal plane
Abfraction
29. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
Malocclusion
anterior crossbite
posterior crossbite
Retrusion
30. During selective grinding - occlusion should be adjusted In what four relationships
protrusive occlusion
edge to edge
horizontal overlap
centric occlusion - centric relation - protrusive and lateral movements
31. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract
Centric relation
Lateral excursion
curve of wilson
fremitus
32. Curve of the occlusal plane; from anterior to posterior - increases with age
Retrusion
splinting
leeway spaces
curve of spee
33. Tongue thrust or thumb sucking can cause
curve of wilson
class II division I occlusion
end to end
primary occlusal trauma
34. Measurement of horizontal overlap w/ probe
Overbite is a ___ measurement
overjet
hypercementosis
causes of open bite
35. Below occlusal plane
Underjet
class II - div 1
causes of open bite
infraversion
36. Excessive occ force with adequate bone support =
primary occlusal trauma
tooth mobility
openbite
supraversion
37. Survival of the dentition despite its deviation from a preconceived hypothetical normal
physiologic occlusion
Nonworking side
functional occlusion
linguoversion
38. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact
pathologic occlusion
Acromegaly
divisions of parafunctional contacts
protrusive occlusion
39. Middle 3rd
class III
moderate overbite
class II - div 1
Overjet is a ___ measurement
40. Functional occlusion
traumatic overbite
splinting
dynamic occlusion
physiologic occlusion
41. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift
conditions that occur in class I malocclusion
underjet
osteoclast resorption
Nonworking side
42. Habitual - acquired - convenience - intercuspal & static
Lateral excursion
occlusal erosion
other names for centric occlusion
curve of spee
43. Overlap of anterior teeth
vertical overlap
other names for centric occlusion
class III
Condyles of the mandible continue grow ___than the maxilla
44. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
curve of monson
canine relationship
Lateral excursion
Centric occlusion is also called
45. Posterior; no horizontal overlap
end to end
Leeway space
excessive occlusal force
premature occlusal contact
46. Mb cusp of max 1st molar-buccal groove of mand 1st molar
molar relationship
Bilateral crossbite occurs on...
codestructive theory
causes of open bite
47. Relationship of the arches bone to bone;
How the diastemas are closed up(including primates spaces)
centric relation
class III
Crossbite
48. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
codestructive theory
secondary occlusal trauma
Lateral excursion
edge to edge
49. Contact between maxillary incisors does not line up with contact of mandibular incisors
occlusion
Midline deviation
interdigitation
selective grinding or occlusal equilibration
50. 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
class III
Abfraction
posterior contact
supraversion