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Dentistry Occlusion
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Subjects
:
health-sciences
,
dentistry
Instructions:
Answer 50 questions in 15 minutes.
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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. Muscles that work the jaw; may become sore due to occ trauma
left working movement
Acromegaly
linguoversion
temporalis and masseter
2. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
flush terminal plane
protrusive occlusion
Midline deviation
Intercuspation
3. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
Unilateral crossbite occurs when
Occlusion can be affected by
temporalis and masseter
primary occlusal trauma
4. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
curve of monson
physiologic occlusion
secondary occlusal trauma
An ideal curve of spee would be
5. II (mal)occlusion
From a frontal view - anterior teeth lean ___
conditions that occur in class II - div I
functional contacts
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
6. Need tooth to tooth contact on both working and non working sides to func effectively
Dentures
late curve of spee
intercuspation
temporalis and masseter
7. Contact between maxillary incisors does not line up with contact of mandibular incisors
How the diastemas are closed up(including primates spaces)
Midline deviation
traumatogenic occlusion
posterior contact
8. 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
Misalignment of teeth
class III - classificaiton
pathologic tooth migration
centric occlusion
9. Survival of the dentition despite its deviation from a preconceived hypothetical normal
crestal funneling
vertical overlap
Glickman 1963
physiologic occlusion
10. Teeth are misaligned when biting together
Malocclusion
openbite
Bilateral crossbite occurs on...
vertical overlap
11. Mb cusp of max 1st molar-buccal groove of mand 1st molar
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
molar relationship
Protrusion
If the condyles continue to grow - extreme mesial step will turn into ___
12. Symptom free dentition that 'survives' or 'adapts' to a deviated occl
occlusal erosion
Glickman 1963
physiologic occlusion
late curve of spee
13. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)
parafunctional contacts
conditions that occur in class II - div I
centric occlusion
Misalignment of teeth
14. Max canine occludes with mand. canine and mand. 1st premolar.
occlusal trauma
splinting
canine relationship
severe overbite
15. Mvmt of the mandible in a direction anterior to centric occ
If the condyles continue to grow - extreme mesial step will turn into ___
protrusive occlusion
Overjet is a ___ measurement
Malocclusion
16. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt
causes of primary occlusal trauma
parafunctional contacts
conditions that occur in class II - div I
osteoclast resorption
17. 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
Leeway space
Centric occlusion is also called
fremitus
18. Posterior; no horizontal overlap
Overjet is a ___ measurement
premature occlusal contact
end to end
splinting
19. Retrognathic profile
openbite
Curve of Spee
Intercuspation
class II
20. Most common cause is when the maxilla does not grow in proportion to the mandible
overjet
Midline deviation
Protrusion
Crossbite
21. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made
malocclusion
class III
Glickman 1963
centric relation
22. ____ is not a sign of occl trauma
Midline deviation
occlusal erosion
centric relation
torsoversion
23. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
centric relation
physiologic occlusion
openbite
curve of wilson
24. Both sides
class II
pathologic tooth migration
normal overbite
Bilateral crossbite occurs on...
25. Excessive deposition of cementum around the apex - due to excessive occlusal forces
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
crestal funneling
hypercementosis
centric occlusion
26. During protrusive occ - ______ is considered undesirable
parafunctional contacts
posterior contact
Overbite is a ___ measurement
other names for centric occlusion
27. Mesially - Labially
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
curve of monson
mesial step
group function
28. Cervical 3rd
anterior teeth
other names for centric occlusion
severe overbite
curve of wilson
29. Above occlusal plane
supraversion
other names for centric occlusion
Leeway space
class II
30. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
overjet
diastemas
selective grinding or occlusal equilibration
premature occlusal contact
31. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
splinting
selective grinding or occlusal equilibration
Overbit
traumatogenic occlusion
32. #10 & #23
openbite
conditions that occur in class II - div 2
codestructive theory
Underjet
33. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
edge to edge
posterior crossbite
Overbite is a ___ measurement
osteoclast resorption
34. Below occlusal plane
bone support
vertical overlap
infraversion
anterior crossbite
35. Tongue thrusting; thumb sucking - pacifiers
osteoclast resorption
causes of open bite
functional occlusion
Premature contact
36. Selective grinding should always be completed after ______ has been controlled
inflammation
class II division I occlusion
conditions that occur in class II - div I
intercuspation
37. A continuation of the spee of to extend through the condyle
An ideal curve of spee would be
temporalis and masseter
Attrition
Maxillary posterior teeth vertical alignment
38. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations
splinting
Dentures
excessive occlusal force
conditions that occur in class I malocclusion
39. Lateral mvmt results in contacct of all posterior teeth
Intercuspation
group function
temporalis and masseter
anterior teeth
40. Curve of the occlusal plane; from anterior to posterior - increases with age
molar relationship
curve of spee
class II - div 1
Working side
41. Guidance for protrusive occ should be on the
normal curve of spee
physiologic occlusion
anterior teeth
Curve of Spee
42. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
Attrition
premature occlusal contact
conditions that occur in class II - div 2
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
43. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
class II malocclusion
gingiva
Curve of Spee
functional occlusion
44. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift
conditions that occur in class I malocclusion
pathologic tooth migration
underjet
causes of open bite
45. Later
Condyles of the mandible continue grow ___than the maxilla
drifted mesial
Maxillary posterior teeth vertical alignment
Working side
46. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors
conditions that occur in class I malocclusion
An ideal curve of spee would be
selective grinding or occlusal equilibration
conditions that occur in class III
47. 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 relation
traumatogenic occlusion
leeway spaces
splinting
48. When no teeth are contacting on this side
Centric occlusion is also called
Nonworking side
underjet
Open bite
49. Lateral mvmt results in contact btwn the max and mand canines
centric relation
canine guidance or protection
premature curve of spee
hawley appliance
50. Mandible moves to the right or left
Protrusion
left working movement
conditions that occur in class II - div I
Lateral excursion
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