Term
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Definition
Greek 'orthos' meaning straight,
and ' gnathos' meaning jaw
Surgery of either or both jaws, to reposition them. |
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Term
What are the 2 major classifications of malocculsion? |
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Definition
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Term
Skeletal malocclusion is caused by....... |
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Definition
Differences in shape, size, and/or placement of one or both jaws |
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Term
Dental malocclusion is caused by...... |
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Definition
Misalignment or crowding of teeth |
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Term
Surgical procedure involves cutting which jaw into 3 pieces? |
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Definition
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Term
What are the 3 parts of the cut jaw? |
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Definition
2 joint bearing side parts of the lower jaw, and the central part that contains the teeth |
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Term
Of the 3 pieces, which is moved and positioned first? |
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Definition
The central part with teeth is positioned first. Than the side pieces |
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Term
What is accessed, split, and separated from the skull base after the lower jaw ? |
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Definition
The upper jaw.
May be cut into pieces to be fixed in new position |
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Term
What kind of material is used to fixate the bones? |
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Definition
Titanium plates and screws |
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Term
What is used to pack in the packs between bone segments or cuts? |
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Definition
Bone harvested from the chin, cheek, or iliac crest. |
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Term
What procedure may be done after the jaws are aligned and fixated? |
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Definition
Chin advancement or reduction |
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Term
What is a class 2 malocclusion? |
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Definition
Retrognathism or 'overbite', occurs when the upper jaw and teeth severly overlap the bottom. |
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Term
What is a class 3 malocclusion? |
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Definition
Prognathism or ' underbite', is when the lower jaw protrudes forward, causing it to overlap the upper jaw. |
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Term
What is a class 1 malocclusion? |
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Definition
The upper teeth overlap the bottom, but the bite is normal and the overlap slight. |
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Term
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Definition
Class 4 malocclusion; no asymmetry of the jaws and leaves the person with an open bite so their teeth do not fit normally |
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