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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. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
labialversion or buccoversion
Unilateral crossbite occurs when
parafunctional contacts
occlusal trauma
2. 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
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Centric relation
Open bite
Attrition
3. Max canine occludes with mand. canine and mand. 1st premolar.
Curve of Wilson
excessive occlusal force
canine relationship
openbite
4. The side to which the mandible moves(chewing side)
selective grinding or occlusal equilibration
Working side
Dentures
dynamic occlusion
5. Lateral mvmt results in contacct of all posterior teeth
group function
occlusion
functional contacts
splinting
6. Buck teeth are common and are considered
class II malocclusion
occlusal trauma
causes of open bite
Overjet is a ___ measurement
7. Relationship of teeth in which the incisal ridges or buccal cusp ridges of the maxillary anterior teeth extend facially to the incisal ridges/cusps of the mandibular teeth when the teeth are in centric occlusion relationship
Dentures
Overjet
torsoversion
physiologic occlusion
8. After periodontal sugery - mobility will ________
primary occlusal trauma
linguoversion
decrease over time
conditions that occur in class II - div I
9. Starts closer to premolars
Centric occlusion is also called
premature curve of spee
posterior crossbite
Overbite is a ___ measurement
10. #10 & #23
Midline deviation
osteoclast resorption
openbite
causes of primary occlusal trauma
11. Curve of the occlusal plane; from anterior to posterior - increases with age
Misalignment of teeth
infraversion
supraversion
curve of spee
12. #7 - 26 - 27
crossbite
anterior crossbite
Protrusion
causes of primary occlusal trauma
13. Curve spee & wilson - 3-d - not proven
curve of monson
Lateral excursion
centric relation
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
14. During selective grinding - occlusion should be adjusted In what four relationships
primary occlusal trauma
Overbit
centric occlusion - centric relation - protrusive and lateral movements
occlusal erosion
15. Vertical
Overbite is a ___ measurement
anterior crossbite
non working or balancing side
physiologic occlusion
16. Curved alignment of the occlusal plane when looking from a posterior view(right to left)
premature curve of spee
class II - div 1
Curve of Wilson
functional occlusion
17. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact
non working or balancing side
divisions of parafunctional contacts
edge to edge
vertical overlap
18. Tooth extracted
hypercementosis
Centric relation
openbite
drifted mesial
19. Crowns tipped lingually - roots tipped laterally
pathologic tooth migration
Mandibular posterior teeth vertical alignment
An ideal curve of spee would be
Intercuspation
20. Slight buccal inclination of crown - lingual inclination of root
hawley appliance
protrusive occlusion
Abfraction
Maxillary posterior teeth vertical alignment
21. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
osteoclast resorption
occlusal trauma
secondary occlusal trauma
functional contacts
22. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
tooth mobility
Retrusion
functional occlusion
anterior crossbite
23. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together
Leeway space
tooth mobility
occlusion
other names for centric occlusion
24. Both sides
hawley appliance
Bilateral crossbite occurs on...
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Attrition
25. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt
leeway spaces
Leeway space
traumatogenic occlusion
hawley appliance
26. Muscles that work the jaw; may become sore due to occ trauma
group function
premature curve of spee
temporalis and masseter
severe overbite
27. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
Hereditary factors include
bone support
Occlusion can be affected by
conditions that occur in class II - div 2
28. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
Bilateral crossbite occurs on...
codestructive theory
Abfraction
Nonworking side
29. 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
other names for centric occlusion
hawley appliance
conditions that occur in class II - div 2
30. Later
Condyles of the mandible continue grow ___than the maxilla
causes of primary occlusal trauma
linguoversion
Crossbite
31. Measurement of horizontal overlap w/ probe
decrease over time
Lateral excursion
overjet
Intercuspation
32. Laterally
pathologic tooth migration
From a frontal view - anterior teeth lean ___
Retrusion
open bite
33. Normal contacts between max. and mand. teeth; momentary contacts
Mandibular posterior teeth vertical alignment
Overjet
Unilateral crossbite occurs when
functional contacts
34. Retrognathic profile; buccal groove of mand 1st molar-distal to mb cusp of max 1st; distal of mand. canine distal to mesial to max caniine - tendency toward class II
class II - div 2
normal overbite
torsoversion
hypercementosis
35. 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
open bite
inter-arch
tooth mobility
class II - div 1
36. Incisal 3rd
Edge to edge bite occurs when
class II - div 1
normal overbite
curve of monson
37. Cervical 3rd
non working or balancing side
physiologic occlusion
severe overbite
selective grinding or occlusal equilibration
38. Habitual - acquired - convenience - intercuspal & static
Edge to edge bite occurs when
other names for centric occlusion
class II - div 1
Abfraction
39. Horizontal
functional occlusion
How the diastemas are closed up(including primates spaces)
Misalignment of teeth
Overjet is a ___ measurement
40. Starts around the mesial of the 1st molar
protrusive occlusion
Centric occlusion is also called
normal curve of spee
divisions of parafunctional contacts
41. Introduced the concept of codestruction
Mandibular posterior teeth vertical alignment
functional occlusion
Glickman 1963
Retrusion
42. Need tooth to tooth contact on both working and non working sides to func effectively
Retrusion
conditions that occur in class I malocclusion
Dentures
centric occlusion
43. Lateral mvmt results in contact btwn the max and mand canines
canine guidance or protection
torsoversion
horizontal overlap
decrease over time
44. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
Curve of Wilson
posterior crossbite
open bite
Occlusion can be affected by
45. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift
conditions that occur in class I malocclusion
secondary occlusal trauma
normal curve of spee
Occlusion can be affected by
46. Maxillary incisors are are lingual to mandibular incisors
Leeway space
Acromegaly
secondary occlusal trauma
Underjet
47. Mesially - Labially
Malocclusion
leeway spaces
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
48. Contact between maxillary incisors does not line up with contact of mandibular incisors
Midline deviation
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
occlusal trauma
From a frontal view - anterior teeth lean ___
49. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
causes of primary occlusal trauma
class II
codestructive theory
Overjet is a ___ measurement
50. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
selective grinding or occlusal equilibration
Nonworking side
anterior teeth
tooth mobility