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Dental Tissues > Occlusion > Flashcards

Occlusion Flashcards

1
Q

Refers to the contact relationship between the maxillary and mandibular teeth

A

Occlusion

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2
Q

The position of maximum intercuspation (MIP)

A

Centric occlusion

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3
Q

What is maximum intercuspation (MIP)?

A

The maxillomandibular relationship that allows the most tooth contact

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4
Q

Centric stops are

A

occlusal contacts between the two arches when in Maximum Intercuspal Position (MIP)

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5
Q

What are 3 locations for centric stops?

A

• Cusp tips
• Marginal Ridges
• Central Fossae

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6
Q

A Jaw position - NOT a tooth position

A

Centric relation

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7
Q

What is centric relation?

A

The maxillomandibular position when the mandibular condyles are in the most anterior superior position in the glenoid fossa

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8
Q

Do the teeth occlude in CR?

A

The teeth may or may not occlude (touch) in CR

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9
Q

Dentures are often made so that____
coincide

A

CO & CR

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10
Q

Dentures are often made so that____
coincide

A

CO & CR

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11
Q

What is the vertical dimension of occlusion?

A

the distance between two selected anatomical points on the patient’s face with the teeth in MIP

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12
Q

What is angles classification of malocclusion?

A

A classification system used to identify malocclusion.

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13
Q

Angle’s Classification of Malocclusion is based primarily on

A

the position of the maxillary first molar’s mesiobuccal (MB) cusp tip

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14
Q

What is considered NORMAL Class I Occlusion?

A

MB Cusp of the maxillary first occludes with MB groove of mandibular first

“Normal” class I means all teeth are straight in the arches

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15
Q

What is considered Class I Malocclusion?

A

• MB Cusp of the maxillary first occludes with MB groove of mandibular first

• “Mal” because remaining teeth are not straight

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16
Q

What is considered a Class Il Malocclusion?

A

MB Cusp of the maxillary first occludes mesial to the MB groove of mandibular first

17
Q

What is considered a Class II Division I?

A

Proclined incisors

MB Cusp of the maxillary first occludes mesial to the MB groove of mandibular first

18
Q

What is considered as Class Il Division II?

A

MB Cusp of the maxillary first occludes mesial to the MB groove of mandibular first

Retroclined centrals

19
Q

What is considered as a Class Ill Malocclusion?

A

MB Cusp of the maxillary first occludes Distal to the MB groove of mandibular first

20
Q

The horizontal distance measured from the facial surface of the most lingual mandibular anterior tooth to the middle of the incisor edge of the more facially positioned maxillary tooth

A

Overjet

21
Q

The horizontal distance measured from the facial surface of the most palatal maxillary anterior tooth to the middle of the incisor edge of the more facially positioned mandibular tooth

A

Negative overjet

22
Q

The vertical overlap between two antagonistic teeth (lateral or central incisors). Measured in millimeters & often expressed as a percentage.

A

Overbite

23
Q

What are the 4 categories of overbite?

A

Minimal
Moderate
Deep
Severe/ impinging

24
Q

When the incisal edges of maxillary incisors are within the incisal half of mandibular incisors, the condition is referred to as

A

Moderate overbite

25
Q

The lower jaw is forward with the mandibular arch and incisors extending beyond the maxillary arch and incisors.

A

Underbite

26
Q

The vertical distance between teeth NOT in occlusion

A

Openbite

27
Q

Interincisal distance at peak range of motion (ROM)

May be correctly measured by adding overbite or subtracting openbite

A

MMO (Maximum Mouth Opening)

28
Q

Tooth Loss can cause

A

• Super-eruption
• Drifting
• Inclination

29
Q

The anteroposterior curvature of the arches

A

Curve of spee

30
Q

• Arc of the curve of the posterior teeth
• Concave for mandibular
• Convex for maxillary

A

Curve of wilson

31
Q

Combining the______ forms the Occlusal Plane which refers to______

A

Curve of Wilson and Curve of Spee; an imaginary surface touching the edges of all occluding surfaces

32
Q

____is a vertical difference between the left and right sides of the occlusal plane

A

Occlusal plane canting, also known as occlusal cant (OC)

Dental Tissues (15 decks)

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