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191 Clinical Dental Hygiene > Occlusion > Flashcards

Occlusion Flashcards

1
Q

What is malocclusion

A

Any deviation from the physiologically acceptable relationship of the maxillary arch and/or teeth to the mandibular arch and/or teeth

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2
Q

Problems from malocclusion

A

Ability to maintain adequate plaque control

Speech development

Appearance

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3
Q

What is crossbite

A

Maxillary or mandibular posterior teeth are either facial or lingual to their normal position.

This condition may occur bilaterally or unilaterally

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4
Q

What is edge to edge bite?

A

Incisal surfaces of maxillary anterior teeth include with incisal surfaces of mandibular teeth instead of overlapping as in normal occlusion

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5
Q

End to end bite

A

Molars in pre-molars occlude cusp to cusp as viewed mesiodistally

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6
Q

What is open bite

A

Lack of occlusal or incisal contact between certain Maxillary and mandibular Teeth because either or both have failed to reach the line of occlusion

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7
Q

What is over jet

A

The horizontal distance between the labioincisal surfaces of the mandibular incisors and the linguoincisal surfaces of the maxillary incisors

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8
Q

What is under jet

A

Maxillary and Teeth are lingual to mandibular The Teeth

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9
Q

What is Buccoversion

A

Teeth positioned buccal to normal

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10
Q

What is Labioversion

A

Tooth that has assumed a position labial to normal

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11
Q

What is linguoversion

A

Teeth positioned lingual to normal

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12
Q

What is supraversion

A

Elongated above the line of occlusion

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13
Q

What is infraversion

A

Depressed below the line of occlusion.

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14
Q

What is torsiversion

A

Teeth are turned or rotated

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15
Q

Who came up with the occlusion classifications

A

Edward H angle

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16
Q

What are the three general classes of malocclusion

A

Class I, class II: distoclusion, class III: Mesioclusion

17
Q

What is the canine relation in class I neutroclusion

A

Maxillary permanent canine occludes with the distal half of the mandibular canine and the mesial half of the mandibular first pre-Molar

18
Q

What is the molar relation in class I neutroclusion

A

Mesiobuccal cusp of the maxillary first permanent molar occludes with a buccal groove of the mandibular first permanent molar

19
Q

What is the facial profile for class I neutroclusion

A

Mesognathic

20
Q

What is the facial profile for class II distoclusion

A

Retrognathic

21
Q

What is the molar and canine relation in class II distocolusion

A

Mandibular Teeth are posterior to normal position in the relation to the maxillary teeth

22
Q

What are the two divisions in class II distocolusion

A

Division one: maxillary incisors are protruded

Division two: maxillary incisors are retruded

23
Q

What is the facial profile for class III Mesioclusion

A

Prognathic

24
Q

What is the molar and canine relation in class III mesioclusion 

A

Mandibular Teeth are anterior to normal position in the relation to the maxillary teeth

25
Q

Abrasion

A

Mechanical wearing away of the tooth near the mucogingival junction. Stay strong toothbrushing can do this

26
Q

Abfraction

A

Pressure from mastication causes wearing away at the MGJ

27
Q

Attrition

A

Wearing a way of incisal surfaces due to mastication

28
Q

Wear facets

A

Wearing down of the occlusal surfaces of posterior teeth

29
Q

Erosion

A

Chemical or acid dissolution

30
Q

Functional occlusion

A

Functional contacts are the normal contacts that are made between the teeth during chewing and swallowing

31
Q

Para functional occlusion

A

Made outside of the normal range of function

32
Q

Drifting

A

Natural tendency for mesial migration

33
Q

Pathologic migration

A

Occurs when disease is present; in contrast, drifting is migration with a healthy periodontium

34
Q

Primary trauma

A

Excessive occlusal force is exerted on a tooth was normal bone support

35
Q

Secondary trauma

A

Excessive occlusal force is exerted on a tooth with bone loss and inadequate alveolar bone support

36
Q

Effects of excessive forces

A

When the forces of occlusion are greater than can be taken care of by the attachment apparatus, damage can result

191 Clinical Dental Hygiene (14 decks)

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