Dentistry Occlusion

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. Cusps of maxillary teeth directly over cusps of mandibular teeth
overbite
Working side
Edge to edge bite occurs when
Nonworking side


2. Posterior; no horizontal overlap
traumatogenic occlusion
left working movement
end to end
class II malocclusion


3. Starts closer to premolars
Underjet
Abfraction
centric relation
premature curve of spee


4. Relationship of the arches bone to bone;
class I
centric relation
posterior contact
conditions that occur in class II - div I


5. Horizontal distance of anterior teeth in crossbite
Crossbite
anterior teeth
vertical overlap
underjet


6. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone
Attrition
class II - div 1
Hereditary factors include
malocclusion


7. Mobility - migration - pain - premature contact - widening of PDL - parafuntional habits - TMJ problems - all result in _________
occlusal trauma
conditions that occur in class I malocclusion
centric occlusion
How the diastemas are closed up(including primates spaces)


8. Maxillary overlap mandibular; whole arch
horizontal overlap
class II malocclusion
causes of primary occlusal trauma
centric relation


9. Mandibular molars more distal than maxillary molars
distal step
An ideal curve of spee would be
secondary occlusal trauma
leeway spaces


10. Max canine occludes with mand. canine and mand. 1st premolar.
Centric occlusion is also called
primary occlusal trauma
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs
canine relationship


11. Tongue thrusting; thumb sucking - pacifiers
physiologic occlusion
openbite
Glickman 1963
causes of open bite


12. Vertical overlapping
overbite
physiologic occlusion
Midline deviation
moderate overbite


13. Selective grinding should always be completed after ______ has been controlled
inflammation
crestal funneling
torsoversion
gingiva


14. What is not affected by occ trauma
gingiva
Working side
Underjet
Attrition


15. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______
severe overbite
Working side
tooth mobility
temporalis and masseter


16. A continuation of the spee of to extend through the condyle
overbite
An ideal curve of spee would be
Overjet is a ___ measurement
functional contacts


17. Curve of the occlusal plane; from anterior to posterior - increases with age
curve of spee
Mandibular posterior teeth vertical alignment
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
premature curve of spee


18. Mvmt of the mandible in a direction anterior to centric occ
protrusive occlusion
normal overbite
Dentures
Protrusion


19. 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
occlusal trauma
Retrusion
inter-arch
left working movement


20. #7 - 26 - 27
Malocclusion
codestructive theory
crossbite
class II division I occlusion


21. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth
splinting
Occlusion can be affected by
molar relationship
Edge to edge bite occurs when


22. Excessive deposition of cementum around the apex - due to excessive occlusal forces
Leeway space
Maxillary posterior teeth vertical alignment
hypercementosis
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs


23. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift
conditions that occur in class I malocclusion
interdigitation
conditions that occur in class II - div 2
Occlusion can be affected by


24. Mesognathic profile
selective grinding or occlusal equilibration
class I
causes of primary occlusal trauma
Protrusion


25. Buck teeth are common and are considered
class II malocclusion
Acromegaly
Centric(habitual) occlusion
non working or balancing side


26. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite
centric relation
Leeway space
conditions that occur in class II - div 2
interdigitation


27. Primary teeth set ___________________ for permanent
How the diastemas are closed up(including primates spaces)
occlusion pattern
class III
Edge to edge bite occurs when


28. After periodontal sugery - mobility will ________
anterior teeth
bone support
decrease over time
centric occlusion


29. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces
overjet
From lateral view - all teeth(except max.3rds) lean ___; anterior teeth lean ___
occlusal trauma
non working or balancing side


30. Associated with performance; all contacts during function of the oral cavity
functional occlusion
drifted mesial
excessive occlusal force
centric occlusion - centric relation - protrusive and lateral movements


31. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip
conditions that occur in class II - div I
If the condyles continue to grow - extreme mesial step will turn into ___
osteoclast resorption
Curve of Spee


32. Normal contacts between max. and mand. teeth; momentary contacts
functional contacts
excessive occlusal force
molar relationship
class II


33. 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
end to end
Attrition
molar relationship
class II - div 2


34. Muscles that work the jaw; may become sore due to occ trauma
overbite
Curve of Spee
temporalis and masseter
crossbite


35. II (mal)occlusion
class II malocclusion
Centric(habitual) occlusion
molar relationship
If the maxilla outgrows the mandible - a Class ___ of permanent teeth occurs


36. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars
leeway spaces
Protrusion
torsoversion
temporalis and masseter


37. Most common cause is when the maxilla does not grow in proportion to the mandible
Crossbite
curve of wilson
Bilateral crossbite occurs on...
dynamic occlusion


38. Prognathic profile
Occlusion can be affected by
class II division I occlusion
class III
diastemas


39. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position
bone support
Misalignment of teeth
occlusion
Centric occlusion is also called


40. Guidance for protrusive occ should be on the
occlusion pattern
anterior teeth
curve of spee
Overbite is a ___ measurement


41. Overlap of anterior teeth
Overbite is a ___ measurement
linguoversion
curve of wilson
vertical overlap


42. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap
Glickman 1963
posterior crossbite
canine relationship
flush terminal plane


43. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors
occlusal trauma
conditions that occur in class III
late curve of spee
molar relationship


44. 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
class II malocclusion
underjet
From a frontal view - anterior teeth lean ___


45. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)
curve of wilson
causes of open bite
underjet
codestructive theory


46. Widening of the PDL in areas under pressure results due to
group function
horizontal overlap
conditions that occur in class II - div I
osteoclast resorption


47. Incisal 3rd
inter-arch
normal overbite
class I
Centric occlusion is also called


48. #10 & #23
class II - div 2
posterior crossbite
openbite
flush terminal plane


49. Relationship of the teeth in opposite arches; static position
horizontal overlap
class II malocclusion
pathologic tooth migration
centric occlusion


50. Retrognathic profile
late curve of spee
occlusion pattern
class II
secondary occlusal trauma