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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. Tooth positioned more lingual
linguoversion
physiologic occlusion
physiologic occlusion
parafunctional contacts
2. 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
infraversion
non working or balancing side
Abfraction
Mandibular posterior teeth vertical alignment
3. Buck teeth are common and are considered
late curve of spee
class II malocclusion
Glickman 1963
Intercuspation
4. Widening of the PDL in areas under pressure results due to
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
secondary occlusal trauma
infraversion
osteoclast resorption
5. Mesially - Labially
functional occlusion
premature curve of spee
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
traumatic overbite
6. Selective grinding should always be completed after ______ has been controlled
conditions that occur in class II - div 2
temporalis and masseter
Misalignment of teeth
inflammation
7. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
excessive occlusal force
Hereditary factors include
open bite
Maxillary posterior teeth vertical alignment
8. II (mal)occlusion
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
class II
decrease over time
Protrusion
9. When one tooth hits before all others when closing teeth together(may cause TMJ problems)
traumatic overbite
Premature contact
moderate overbite
posterior contact
10. Later
hawley appliance
Condyles of the mandible continue grow ___than the maxilla
selective grinding or occlusal equilibration
posterior crossbite
11. Incisal 3rd
normal overbite
Edge to edge bite occurs when
severe overbite
hypercementosis
12. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
posterior crossbite
osteoclast resorption
posterior contact
Curve of Spee
13. Spaces between two teeth
causes of open bite
Dentures
centric occlusion
diastemas
14. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
anterior crossbite
excessive occlusal force
Centric occlusion is also called
functional contacts
15. Curve of the occlusal plane; from anterior to posterior - increases with age
decrease over time
other names for centric occlusion
curve of spee
occlusal erosion
16. Primary teeth set ___________________ for permanent
Malocclusion
occlusion pattern
osteoclast resorption
Crossbite
17. Retrognathic profile
class II
occlusion pattern
inflammation
fremitus
18. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
class III
severe overbite
conditions that occur in class II - div I
overbite
19. Vibrational mvmt of a tooth under occ function
Nonworking side
causes of primary occlusal trauma
fremitus
Overjet is a ___ measurement
20. Starts closer to the posterior of the 1st molar
premature occlusal contact
late curve of spee
overbite
infraversion
21. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus
curve of spee
traumatogenic occlusion
functional occlusion
Working side
22. Lateral mvmt results in contacct of all posterior teeth
Overbit
occlusion pattern
group function
Centric occlusion is also called
23. Abnormal contacts; occlusal habits - and neuroses
labialversion or buccoversion
parafunctional contacts
crestal funneling
anterior teeth
24. Above occlusal plane
decrease over time
supraversion
leeway spaces
posterior contact
25. Maxillary - Mandibular - Facial
intercuspation
edge to edge
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
decrease over time
26. Functional occlusion
dynamic occlusion
parafunctional contacts
Unilateral crossbite occurs when
causes of open bite
27. 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
Centric occlusion is also called
splinting
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
distal step
28. Retrognathic profile -buccal groove of mand. 1st molar-distal to mb cusp of 1st max.molar -distal of mand canine distal to mesial of max canine - tendency towards class II
conditions that occur in class I malocclusion
class II - div 1
Retrusion
functional occlusion
29. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
interdigitation
curve of spee
Intercuspation
diastemas
30. Starts closer to premolars
premature curve of spee
class III
edge to edge
posterior crossbite
31. Excessive deposition of cementum around the apex - due to excessive occlusal forces
infraversion
anterior teeth
hypercementosis
Curve of Wilson
32. 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
gingiva
Centric relation
conditions that occur in class II - div I
Overbit
33. The side to which the mandible moves(chewing side)
Working side
posterior crossbite
tooth mobility
Edge to edge bite occurs when
34. What is not affected by occ trauma
class I
class II - div 2
Misalignment of teeth
gingiva
35. During protrusive occ - ______ is considered undesirable
posterior contact
occlusion pattern
Centric occlusion is also called
If the condyles continue to grow - extreme mesial step will turn into ___
36. Vertical
Overbite is a ___ measurement
parafunctional contacts
Underjet
distal step
37. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
Attrition
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
posterior crossbite
Edge to edge bite occurs when
38. Mandibular molars and maxillary molars are even
flush terminal plane
infraversion
pathologic occlusion
Unilateral crossbite occurs when
39. Difference between primary and secondary occ trauma
leeway spaces
Malocclusion
bone support
If the condyles continue to grow - extreme mesial step will turn into ___
40. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
occlusal erosion
class II - div 2
Centric(habitual) occlusion
anterior crossbite
41. Introduced the concept of codestruction
posterior crossbite
Glickman 1963
physiologic occlusion
splinting
42. Survival of the dentition despite its deviation from a preconceived hypothetical normal
vertical overlap
Working side
physiologic occlusion
other names for centric occlusion
43. Maxillary anterior teeth stick out labially from tongue thrusting
Protrusion
Maxillary posterior teeth vertical alignment
centric relation
occlusion
44. ____ is not a sign of occl trauma
molar relationship
codestructive theory
protrusive occlusion
occlusal erosion
45. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
temporalis and masseter
Unilateral crossbite occurs when
Leeway space
open bite
46. Starts around the mesial of the 1st molar
normal curve of spee
interdigitation
causes of open bite
conditions that occur in class I malocclusion
47. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion
Open bite
Mandibular posterior teeth vertical alignment
secondary occlusal trauma
canine guidance or protection
48. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
premature occlusal contact
centric relation
severe overbite
causes of primary occlusal trauma
49. Cusps of maxillary teeth directly over cusps of mandibular teeth
Intercuspation
Premature contact
Edge to edge bite occurs when
curve of spee
50. Middle 3rd
Centric occlusion is also called
causes of open bite
Edge to edge bite occurs when
moderate overbite