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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
Centric occlusion is also called
pathologic occlusion
centric occlusion
linguoversion
2. When no teeth are contacting on this side
functional contacts
Nonworking side
left working movement
class II
3. Cusps of maxillary teeth directly over cusps of mandibular teeth
other names for centric occlusion
protrusive occlusion
Edge to edge bite occurs when
causes of open bite
4. Maxillary anterior teeth stick out labially from tongue thrusting
Bilateral crossbite occurs on...
functional occlusion
functional contacts
Protrusion
5. Survival of the dentition despite its deviation from a preconceived hypothetical normal
physiologic occlusion
An ideal curve of spee would be
inter-arch
centric relation
6. Mesially - Labially
codestructive theory
overbite
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
centric relation
7. Associated with performance; all contacts during function of the oral cavity
leeway spaces
traumatic overbite
functional occlusion
divisions of parafunctional contacts
8. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus
traumatogenic occlusion
Overbite is a ___ measurement
normal overbite
centric occlusion - centric relation - protrusive and lateral movements
9. Slight buccal inclination of crown - lingual inclination of root
overbite
malocclusion
Maxillary posterior teeth vertical alignment
secondary occlusal trauma
10. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
curve of wilson
distal step
class I
Nonworking side
11. Starts around the mesial of the 1st molar
Centric relation
hawley appliance
normal curve of spee
flush terminal plane
12. Relationship of the arches bone to bone;
horizontal overlap
centric relation
codestructive theory
parafunctional contacts
13. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
occlusal erosion
late curve of spee
conditions that occur in class II - div 2
Attrition
14. Vertical overlapping
infraversion
Overbite is a ___ measurement
normal curve of spee
overbite
15. Usually indicative of moderate to sever perio and secondary occ trauma
Nonworking side
class I
pathologic tooth migration
Underjet
16. Crowns tipped lingually - roots tipped laterally
premature curve of spee
From a frontal view - anterior teeth lean ___
anterior crossbite
Mandibular posterior teeth vertical alignment
17. Guidance for protrusive occ should be on the
class II - div 1
malocclusion
class II
anterior teeth
18. 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
vertical overlap
class III
Overjet
causes of open bite
19. Above occlusal plane
Centric occlusion is also called
supraversion
leeway spaces
Underjet
20. Individual teeth from each arch can be involved in ________________ malocclusion
inter-arch
Curve of Wilson
bone support
Overjet
21. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
functional occlusion
tooth mobility
traumatogenic occlusion
Attrition
22. During protrusive occ - ______ is considered undesirable
How the diastemas are closed up(including primates spaces)
functional occlusion
posterior contact
conditions that occur in class III
23. Starts closer to premolars
malocclusion
hawley appliance
premature curve of spee
fremitus
24. Mb cusp of max 1st molar-buccal groove of mand 1st molar
molar relationship
divisions of parafunctional contacts
Open bite
infraversion
25. Tooth extracted
leeway spaces
drifted mesial
curve of monson
traumatogenic occlusion
26. The permanent molars erupt posterior to the primary teeth and push them all mesially
How the diastemas are closed up(including primates spaces)
Open bite
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Maxillary posterior teeth vertical alignment
27. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
curve of spee
overjet
selective grinding or occlusal equilibration
normal curve of spee
28. Mandibular molars more distal than maxillary molars
codestructive theory
distal step
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Overjet
29. Mesognathic profile
malocclusion
Working side
open bite
class I
30. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)
causes of open bite
traumatic overbite
temporalis and masseter
Acromegaly
31. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
canine relationship
pathologic occlusion
decrease over time
Hereditary factors include
32. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
conditions that occur in class II - div 2
molar relationship
premature occlusal contact
class I
33. If the mandible moves to the left - the mvmt is known as a left working movement
vertical overlap
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
temporalis and masseter
left working movement
34. Functional occlusion
dynamic occlusion
Lateral excursion
protrusive occlusion
Nonworking side
35. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
labialversion or buccoversion
inter-arch
Intercuspation
linguoversion
36. During a left working movement - the right side is known as the
curve of spee
open bite
protrusive occlusion
non working or balancing side
37. What is not affected by occ trauma
Condyles of the mandible continue grow ___than the maxilla
pathologic tooth migration
gingiva
Bilateral crossbite occurs on...
38. Need tooth to tooth contact on both working and non working sides to func effectively
curve of spee
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Dentures
functional contacts
39. Class III (mal)occlusion of permanent teeth
underjet
group function
If the condyles continue to grow - extreme mesial step will turn into ___
pathologic tooth migration
40. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion
Occlusion can be affected by
physiologic occlusion
divisions of parafunctional contacts
Open bite
41. Tongue thrust or thumb sucking can cause
class II division I occlusion
gingiva
selective grinding or occlusal equilibration
fremitus
42. Abnormal contacts; occlusal habits - and neuroses
underjet
severe overbite
parafunctional contacts
Lateral excursion
43. Mandibular molars more mesial than maxillary molars (most children)
Condyles of the mandible continue grow ___than the maxilla
mesial step
class II malocclusion
anterior teeth
44. Symptom free dentition that 'survives' or 'adapts' to a deviated occl
Unilateral crossbite occurs when
infraversion
physiologic occlusion
Overbite is a ___ measurement
45. Mobility - migration - pain - premature contact - widening of PDL - parafuntional habits - TMJ problems - all result in _________
crestal funneling
occlusal trauma
protrusive occlusion
interdigitation
46. Mandible moves to the right or left
Lateral excursion
Malocclusion
Misalignment of teeth
mesial step
47. Maximal intercuspation or contact of the max and mand teeth
dynamic occlusion
An ideal curve of spee would be
Nonworking side
centric occlusion
48. Maximum interlocking of cusp
normal curve of spee
intercuspation
vertical overlap
Midline deviation
49. Buck teeth are common and are considered
occlusion pattern
curve of wilson
pathologic occlusion
class II malocclusion
50. The side to which the mandible moves(chewing side)
Mandibular posterior teeth vertical alignment
Working side
Overjet is a ___ measurement
centric relation