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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. Measurement of horizontal overlap w/ probe
distal step
overjet
underjet
An ideal curve of spee would be
2. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion
Open bite
Premature contact
Malocclusion
late curve of spee
3. Normal contacts between max. and mand. teeth; momentary contacts
causes of open bite
open bite
Acromegaly
functional contacts
4. Horizontal
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
premature curve of spee
functional contacts
Overjet is a ___ measurement
5. Associated with performance; all contacts during function of the oral cavity
functional occlusion
Bilateral crossbite occurs on...
supraversion
premature curve of spee
6. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
other names for centric occlusion
If the condyles continue to grow - extreme mesial step will turn into ___
Protrusion
conditions that occur in class II - div I
7. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
Curve of Spee
class I
interdigitation
class II - div 2
8. Need tooth to tooth contact on both working and non working sides to func effectively
Dentures
molar relationship
occlusion pattern
Glickman 1963
9. Lateral mvmt results in contact btwn the max and mand canines
canine guidance or protection
late curve of spee
Centric(habitual) occlusion
Occlusion can be affected by
10. Mandibular molars more distal than maxillary molars
distal step
Condyles of the mandible continue grow ___than the maxilla
Attrition
centric occlusion
11. Maximal intercuspation or contact of the max and mand teeth
premature curve of spee
bone support
centric occlusion
end to end
12. Most common cause is when the maxilla does not grow in proportion to the mandible
posterior contact
Crossbite
pathologic occlusion
Bilateral crossbite occurs on...
13. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
codestructive theory
anterior crossbite
Open bite
osteoclast resorption
14. Class III (mal)occlusion of permanent teeth
If the condyles continue to grow - extreme mesial step will turn into ___
group function
premature occlusal contact
leeway spaces
15. Lateral mvmt results in contacct of all posterior teeth
inter-arch
supraversion
curve of wilson
group function
16. Tooth positioned more facial
labialversion or buccoversion
hawley appliance
normal overbite
Centric occlusion is also called
17. Incisal 3rd
Protrusion
Glickman 1963
Hereditary factors include
normal overbite
18. Mvmt of the mandible in a direction anterior to centric occ
protrusive occlusion
selective grinding or occlusal equilibration
codestructive theory
molar relationship
19. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors
How the diastemas are closed up(including primates spaces)
conditions that occur in class III
class I
interdigitation
20. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
horizontal overlap
occlusion pattern
class II
occlusal trauma
21. #7 - 26 - 27
primate spaces
If the condyles continue to grow - extreme mesial step will turn into ___
Protrusion
crossbite
22. Slight buccal inclination of crown - lingual inclination of root
curve of wilson
Maxillary posterior teeth vertical alignment
overjet
fremitus
23. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
Curve of Spee
group function
conditions that occur in class II - div 2
anterior crossbite
24. Later
hypercementosis
Lateral excursion
Condyles of the mandible continue grow ___than the maxilla
class III - classificaiton
25. Maxillary overlap mandibular; whole arch
traumatic overbite
horizontal overlap
premature occlusal contact
If the condyles continue to grow - extreme mesial step will turn into ___
26. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
leeway spaces
posterior crossbite
posterior contact
physiologic occlusion
27. Prognathic profile; buccal groove of mand. 1st molar-mesial to mb cusp of max. 1st molar; distal of mand. canine mesial to mesial of max canine; tendency toward class III
Maxillary posterior teeth vertical alignment
horizontal overlap
Protrusion
class III - classificaiton
28. Mandibular molars and maxillary molars are even
Overbite is a ___ measurement
If the condyles continue to grow - extreme mesial step will turn into ___
flush terminal plane
Overbit
29. 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
Glickman 1963
class II - div 1
functional occlusion
normal overbite
30. What is not affected by occ trauma
overjet
gingiva
infraversion
edge to edge
31. Patients show evidence or signs and syptoms of occ disease
centric relation
class II division I occlusion
pathologic occlusion
overbite
32. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together
premature occlusal contact
selective grinding or occlusal equilibration
occlusion
canine guidance or protection
33. Survival of the dentition despite its deviation from a preconceived hypothetical normal
decrease over time
diastemas
leeway spaces
physiologic occlusion
34. Both sides
Lateral excursion
openbite
Overjet is a ___ measurement
Bilateral crossbite occurs on...
35. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
curve of wilson
underjet
class II malocclusion
functional occlusion
36. 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
splinting
occlusal trauma
class III
crestal funneling
37. Spaces between two teeth
gingiva
diastemas
class II
traumatogenic occlusion
38. Tooth positioned more lingual
functional contacts
splinting
If the condyles continue to grow - extreme mesial step will turn into ___
linguoversion
39. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
traumatic overbite
conditions that occur in class II - div 2
Open bite
centric occlusion - centric relation - protrusive and lateral movements
40. Laterally
From a frontal view - anterior teeth lean ___
class III - classificaiton
crossbite
physiologic occlusion
41. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)
Acromegaly
drifted mesial
conditions that occur in class III
tooth mobility
42. Vibrational mvmt of a tooth under occ function
horizontal overlap
fremitus
class II - div 2
splinting
43. 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
occlusal erosion
diastemas
Attrition
moderate overbite
44. After periodontal sugery - mobility will ________
temporalis and masseter
other names for centric occlusion
decrease over time
curve of spee
45. Mandible moves to the right or left
Centric(habitual) occlusion
open bite
Lateral excursion
class II malocclusion
46. Excessive occ force with adequate bone support =
Mandibular posterior teeth vertical alignment
primary occlusal trauma
Acromegaly
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
47. Relationship of the arches bone to bone;
centric relation
occlusal trauma
gingiva
torsoversion
48. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
premature curve of spee
Intercuspation
Leeway space
anterior crossbite
49. 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
horizontal overlap
Overbit
flush terminal plane
occlusion
50. Tongue thrusting; thumb sucking - pacifiers
secondary occlusal trauma
causes of open bite
primary occlusal trauma
openbite