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Test your basic knowledge |
Dentistry Occlusion
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Subjects
:
health-sciences
,
dentistry
Instructions:
Answer 50 questions in 15 minutes.
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study here
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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. Max canine occludes with mand. canine and mand. 1st premolar.
labialversion or buccoversion
canine relationship
conditions that occur in class I malocclusion
primate spaces
2. Teeth are misaligned when biting together
splinting
premature curve of spee
Malocclusion
centric relation
3. Patients show evidence or signs and syptoms of occ disease
dynamic occlusion
pathologic occlusion
curve of monson
Premature contact
4. Maxillary-between canines and laterals - mandibular-between canines and 1st molars
primate spaces
intercuspation
Glickman 1963
Midline deviation
5. Contact between maxillary incisors does not line up with contact of mandibular incisors
Overjet
inter-arch
open bite
Midline deviation
6. Associated with performance; all contacts during function of the oral cavity
functional occlusion
flush terminal plane
decrease over time
Overjet
7. Radiographically - the PDL space is wider at the coronal third of the root
traumatic overbite
crestal funneling
conditions that occur in class II - div 2
Overbite is a ___ measurement
8. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)
conditions that occur in class II - div I
Curve of Spee
Hereditary factors include
Unilateral crossbite occurs when
9. Vibrational mvmt of a tooth under occ function
Leeway space
crossbite
molar relationship
fremitus
10. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
occlusal erosion
Hereditary factors include
decrease over time
functional contacts
11. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact
Nonworking side
excessive occlusal force
divisions of parafunctional contacts
supraversion
12. The way you normally bite your teeth together when not chewing
Edge to edge bite occurs when
underjet
If the condyles continue to grow - extreme mesial step will turn into ___
Centric(habitual) occlusion
13. Mvmt of the mandible in a direction anterior to centric occ
Premature contact
Overjet
protrusive occlusion
curve of spee
14. Maxillary anterior teeth stick out labially from tongue thrusting
anterior crossbite
Retrusion
Protrusion
Open bite
15. During protrusive occ - ______ is considered undesirable
mesial step
functional contacts
excessive occlusal force
posterior contact
16. Patient forces teeth together in centric occlusion on one side to get a more functional bite and has a crossbite on the other side(the midline of the maxillary anterior teeth does not line up with the midlineof the mandible
Attrition
Misalignment of teeth
Unilateral crossbite occurs when
pathologic tooth migration
17. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
supraversion
Centric occlusion is also called
Abfraction
occlusion
18. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract
occlusal trauma
Centric relation
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
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
19. Above occlusal plane
class II - div 1
Condyles of the mandible continue grow ___than the maxilla
supraversion
From a frontal view - anterior teeth lean ___
20. Mandible moves to the right or left
Condyles of the mandible continue grow ___than the maxilla
Lateral excursion
class II division I occlusion
primate spaces
21. Curve spee & wilson - 3-d - not proven
late curve of spee
curve of monson
Nonworking side
parafunctional contacts
22. Curve of the occlusal plane; from anterior to posterior - increases with age
centric occlusion - centric relation - protrusive and lateral movements
class II - div 1
curve of spee
gingiva
23. Mb cusp of max 1st molar-buccal groove of mand 1st molar
How the diastemas are closed up(including primates spaces)
intercuspation
vertical overlap
molar relationship
24. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus
class III
Leeway space
secondary occlusal trauma
canine guidance or protection
25. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
curve of wilson
premature occlusal contact
Leeway space
class II
26. Maximal intercuspation or contact of the max and mand teeth
Open bite
occlusal erosion
Midline deviation
centric occlusion
27. Tooth extracted
mesial step
traumatogenic occlusion
drifted mesial
codestructive theory
28. Individual teeth from each arch can be involved in ________________ malocclusion
inter-arch
intercuspation
severe overbite
leeway spaces
29. ____ is not a sign of occl trauma
occlusal erosion
temporalis and masseter
overjet
From a frontal view - anterior teeth lean ___
30. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
traumatogenic occlusion
anterior crossbite
tooth mobility
labialversion or buccoversion
31. Mandibular molars and maxillary molars are even
decrease over time
flush terminal plane
parafunctional contacts
canine guidance or protection
32. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation
Misalignment of teeth
curve of wilson
codestructive theory
moderate overbite
33. Habitual - acquired - convenience - intercuspal & static
Premature contact
other names for centric occlusion
hypercementosis
Crossbite
34. Middle 3rd
class II malocclusion
mesial step
moderate overbite
normal overbite
35. Lateral mvmt results in contact btwn the max and mand canines
Open bite
functional contacts
Intercuspation
canine guidance or protection
36. Relationship of the teeth in opposite arches; static position
severe overbite
parafunctional contacts
centric occlusion
Protrusion
37. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)
causes of open bite
normal curve of spee
Misalignment of teeth
linguoversion
38. Mandibular molars more mesial than maxillary molars (most children)
anterior teeth
mesial step
Acromegaly
curve of monson
39. 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
Working side
An ideal curve of spee would be
premature curve of spee
Overbit
40. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion
Curve of Wilson
bone support
premature occlusal contact
labialversion or buccoversion
41. Guidance for protrusive occ should be on the
hypercementosis
Midline deviation
Crossbite
anterior teeth
42. During selective grinding - occlusion should be adjusted In what four relationships
conditions that occur in class II - div I
centric occlusion - centric relation - protrusive and lateral movements
dynamic occlusion
Lateral excursion
43. The patient is constantly tightening the lower lip against the lower anterior teeth causing the the mandibular teeth to be pushed back into the mouth by this overdeveloped lower lip
gingiva
Condyles of the mandible continue grow ___than the maxilla
posterior crossbite
Retrusion
44. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
Working side
splinting
selective grinding or occlusal equilibration
Midline deviation
45. Excessive deposition of cementum around the apex - due to excessive occlusal forces
Crossbite
hypercementosis
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
Overjet
46. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion
excessive occlusal force
centric occlusion - centric relation - protrusive and lateral movements
malocclusion
Open bite
47. Relationship of the arches bone to bone;
Centric occlusion is also called
centric relation
vertical overlap
curve of wilson
48. Difference between primary and secondary occ trauma
bone support
Maxillary posterior teeth vertical alignment
supraversion
distal step
49. Most common cause is when the maxilla does not grow in proportion to the mandible
leeway spaces
functional occlusion
Crossbite
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
50. When no teeth are contacting on this side
Nonworking side
functional contacts
curve of wilson
An ideal curve of spee would be
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