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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. Maximum touching of max and mand
Condyles of the mandible continue grow ___than the maxilla
interdigitation
Premature contact
class II - div 1
2. Starts around the mesial of the 1st molar
occlusion
functional occlusion
normal curve of spee
splinting
3. #10 & #23
traumatogenic occlusion
Working side
openbite
inter-arch
4. 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
inter-arch
class II - div 2
Working side
Hereditary factors include
5. Tooth extracted
drifted mesial
tooth mobility
class III
Intercuspation
6. Mandibular molars more distal than maxillary molars
horizontal overlap
distal step
Intercuspation
Overjet
7. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
secondary occlusal trauma
physiologic occlusion
Hereditary factors include
Nonworking side
8. Mesognathic profile
class I
Misalignment of teeth
Overjet is a ___ measurement
infraversion
9. Vibrational mvmt of a tooth under occ function
curve of spee
physiologic occlusion
causes of primary occlusal trauma
fremitus
10. Does not result from brushing at all - but from traumatic lateral forces placed on the teeth as a result of a malocclusion or abnormal tongue activity. Root surface is exposed & can become carious
Abfraction
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
occlusion
centric occlusion - centric relation - protrusive and lateral movements
11. When no teeth are contacting on this side
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
causes of primary occlusal trauma
Nonworking side
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
12. Mb cusp of max 1st molar-buccal groove of mand 1st molar
Bilateral crossbite occurs on...
conditions that occur in class I malocclusion
An ideal curve of spee would be
molar relationship
13. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion
centric relation
Open bite
overbite
class II division I occlusion
14. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
curve of wilson
occlusal trauma
Underjet
If the condyles continue to grow - extreme mesial step will turn into ___
15. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations
Maxillary posterior teeth vertical alignment
hypercementosis
end to end
excessive occlusal force
16. Max canine occludes with mand. canine and mand. 1st premolar.
canine relationship
Centric relation
physiologic occlusion
protrusive occlusion
17. Retrognathic profile
class II
supraversion
From a frontal view - anterior teeth lean ___
conditions that occur in class III
18. Rotated or twisted; rotated mesial or distal
torsoversion
leeway spaces
traumatogenic occlusion
malocclusion
19. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)
crestal funneling
Misalignment of teeth
parafunctional contacts
gingiva
20. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
tooth mobility
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
Lateral excursion
mesial step
21. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
Unilateral crossbite occurs when
occlusal trauma
Maxillary posterior teeth vertical alignment
curve of monson
22. Individual teeth from each arch can be involved in ________________ malocclusion
inter-arch
causes of primary occlusal trauma
pathologic tooth migration
posterior crossbite
23. Relationship of the arches bone to bone;
interdigitation
Condyles of the mandible continue grow ___than the maxilla
normal curve of spee
centric relation
24. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift
overjet
Attrition
horizontal overlap
conditions that occur in class I malocclusion
25. Functional occlusion
Centric relation
dynamic occlusion
curve of wilson
Glickman 1963
26. Incisal 3rd
normal overbite
Protrusion
Open bite
late curve of spee
27. Primary teeth set ___________________ for permanent
posterior crossbite
occlusion pattern
inflammation
anterior teeth
28. Excessive deposition of cementum around the apex - due to excessive occlusal forces
late curve of spee
Hereditary factors include
hypercementosis
non working or balancing side
29. Teeth are misaligned when biting together
class II division I occlusion
Overbite is a ___ measurement
Hereditary factors include
Malocclusion
30. Excessive occ force with adequate bone support =
excessive occlusal force
molar relationship
other names for centric occlusion
primary occlusal trauma
31. Spaces between two teeth
openbite
diastemas
mesial step
Protrusion
32. 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
class II - div 1
functional occlusion
divisions of parafunctional contacts
centric occlusion
33. Maxillary overlap mandibular; whole arch
curve of wilson
horizontal overlap
conditions that occur in class I malocclusion
Maxillary posterior teeth vertical alignment
34. Relationship of the teeth in opposite arches; static position
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
occlusal trauma
Underjet
centric occlusion
35. Curve of the occlusal plane; from anterior to posterior - increases with age
conditions that occur in class II - div I
curve of spee
osteoclast resorption
pathologic tooth migration
36. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth
Overbit
class III
Intercuspation
An ideal curve of spee would be
37. Cervical 3rd
inter-arch
severe overbite
non working or balancing side
Retrusion
38. 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
Attrition
moderate overbite
overjet
tooth mobility
39. Mandible moves to the right or left
Open bite
conditions that occur in class II - div 2
Lateral excursion
secondary occlusal trauma
40. Above occlusal plane
pathologic tooth migration
infraversion
supraversion
causes of primary occlusal trauma
41. II (mal)occlusion
Intercuspation
class III
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
Open bite
42. 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
intercuspation
Unilateral crossbite occurs when
causes of open bite
traumatogenic occlusion
43. Most common cause is when the maxilla does not grow in proportion to the mandible
Crossbite
curve of monson
left working movement
causes of open bite
44. Max. incisors lingual to mand. incisors; incorrect horizontal overlap
supraversion
anterior crossbite
class III - classificaiton
Mandibular posterior teeth vertical alignment
45. During selective grinding - occlusion should be adjusted In what four relationships
centric occlusion - centric relation - protrusive and lateral movements
divisions of parafunctional contacts
anterior teeth
Lateral excursion
46. Normal contacts between max. and mand. teeth; momentary contacts
Bilateral crossbite occurs on...
crossbite
functional contacts
class II
47. Buck teeth are common and are considered
malocclusion
fremitus
Dentures
class II malocclusion
48. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
posterior crossbite
labialversion or buccoversion
Lateral excursion
curve of monson
49. Crowns tipped lingually - roots tipped laterally
physiologic occlusion
traumatogenic occlusion
anterior teeth
Mandibular posterior teeth vertical alignment
50. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition
anterior teeth
left working movement
selective grinding or occlusal equilibration
normal curve of spee