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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. 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
hawley appliance
Retrusion
interdigitation
functional occlusion
2. Maxillary-between canines and laterals - mandibular-between canines and 1st molars
functional occlusion
class I
posterior contact
primate spaces
3. Curve spee & wilson - 3-d - not proven
centric relation
bone support
curve of monson
Overjet
4. #10 & #23
late curve of spee
openbite
malocclusion
tooth mobility
5. Measurement of horizontal overlap w/ probe
overjet
Dentures
open bite
Abfraction
6. Most common cause is when the maxilla does not grow in proportion to the mandible
Occlusion can be affected by
molar relationship
Crossbite
curve of spee
7. Mb cusp of max 1st molar-buccal groove of mand 1st molar
functional occlusion
molar relationship
Lateral excursion
premature occlusal contact
8. 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
Overbit
class II
linguoversion
canine relationship
9. Survival of the dentition despite its deviation from a preconceived hypothetical normal
openbite
physiologic occlusion
excessive occlusal force
class II
10. Maximal intercuspation or contact of the max and mand teeth
diastemas
centric occlusion
Mandibular posterior teeth vertical alignment
premature curve of spee
11. During protrusive occ - ______ is considered undesirable
posterior contact
overjet
conditions that occur in class III
class II malocclusion
12. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
other names for centric occlusion
leeway spaces
Hereditary factors include
traumatogenic occlusion
13. Curved alignment of the occlusal plane when looking from a posterior view(right to left)
Curve of Wilson
protrusive occlusion
Maxillary posterior teeth vertical alignment
severe overbite
14. Teeth are misaligned when biting together
Malocclusion
physiologic occlusion
premature occlusal contact
centric occlusion - centric relation - protrusive and lateral movements
15. Habitual - acquired - convenience - intercuspal & static
other names for centric occlusion
underjet
codestructive theory
gingiva
16. Laterally
Edge to edge bite occurs when
From a frontal view - anterior teeth lean ___
centric occlusion
distal step
17. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)
Hereditary factors include
class I
Acromegaly
class II division I occlusion
18. Individual teeth from each arch can be involved in ________________ malocclusion
inter-arch
conditions that occur in class II - div I
crossbite
physiologic occlusion
19. Tooth positioned more facial
Attrition
Centric relation
normal overbite
labialversion or buccoversion
20. Vertical
class II malocclusion
inter-arch
left working movement
Overbite is a ___ measurement
21. Slight buccal inclination of crown - lingual inclination of root
Maxillary posterior teeth vertical alignment
normal curve of spee
Centric occlusion is also called
fremitus
22. Occlusal guard =
protrusive occlusion
hawley appliance
molar relationship
How the diastemas are closed up(including primates spaces)
23. Spaces between two teeth
Abfraction
torsoversion
occlusion
diastemas
24. Radiographically - the PDL space is wider at the coronal third of the root
crestal funneling
intercuspation
Centric relation
moderate overbite
25. Maxillary - Mandibular - Facial
Working side
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
If the condyles continue to grow - extreme mesial step will turn into ___
temporalis and masseter
26. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth
distal step
severe overbite
traumatic overbite
non working or balancing side
27. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth
Lateral excursion
class II
underjet
malocclusion
28. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift
Dentures
primary occlusal trauma
conditions that occur in class I malocclusion
conditions that occur in class III
29. Maximum touching of max and mand
conditions that occur in class II - div I
interdigitation
Nonworking side
conditions that occur in class III
30. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact
left working movement
divisions of parafunctional contacts
malocclusion
functional occlusion
31. Guidance for protrusive occ should be on the
anterior teeth
Open bite
hawley appliance
osteoclast resorption
32. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
class II division I occlusion
selective grinding or occlusal equilibration
anterior crossbite
traumatic overbite
33. Mobility - migration - pain - premature contact - widening of PDL - parafuntional habits - TMJ problems - all result in _________
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
edge to edge
If the condyles continue to grow - extreme mesial step will turn into ___
occlusal trauma
34. Rotated or twisted; rotated mesial or distal
Malocclusion
torsoversion
class III
traumatic overbite
35. What is not affected by occ trauma
normal overbite
posterior contact
premature curve of spee
gingiva
36. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
group function
splinting
Hereditary factors include
centric occlusion - centric relation - protrusive and lateral movements
37. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
occlusal erosion
leeway spaces
Centric relation
codestructive theory
38. 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
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
class II - div 1
How the diastemas are closed up(including primates spaces)
39. Teeth that are in func when the mandible moves in lateral or protrusive excursions or mvmts
How the diastemas are closed up(including primates spaces)
functional occlusion
centric occlusion
Malocclusion
40. Tongue thrust or thumb sucking can cause
temporalis and masseter
An ideal curve of spee would be
class II division I occlusion
parafunctional contacts
41. Mesognathic profile
class I
parafunctional contacts
hypercementosis
linguoversion
42. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
occlusal erosion
traumatic overbite
excessive occlusal force
posterior crossbite
43. Excessive deposition of cementum around the apex - due to excessive occlusal forces
centric occlusion
hypercementosis
normal curve of spee
parafunctional contacts
44. Patients show evidence or signs and syptoms of occ disease
pathologic occlusion
class II - div 1
crestal funneling
codestructive theory
45. Later
Overbite is a ___ measurement
Condyles of the mandible continue grow ___than the maxilla
curve of wilson
dynamic occlusion
46. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
class II malocclusion
conditions that occur in class II - div I
Leeway space
47. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
premature occlusal contact
Occlusion can be affected by
Protrusion
open bite
48. Lateral mvmt results in contacct of all posterior teeth
group function
Nonworking side
Leeway space
centric occlusion - centric relation - protrusive and lateral movements
49. Mvmt of the mandible in a direction anterior to centric occ
protrusive occlusion
labialversion or buccoversion
end to end
curve of spee
50. Anterior; no horizontal overlap
edge to edge
Centric relation
Crossbite
Malocclusion