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Failure, Relapse, Retention
The Orthodontic Headache |
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These are three topics which are not often discussed and if at all then without
any enthusiasm. Basically, these are aspects which can take the excitement out of
daily orthodontics. But if these subjects are evaluated comprehensively they can
loose some of their horror. Therefore, this lecture attempts to cover the etiology of
failures and relapses. As well concepts for an effective intervention will be
developed.
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During this lecture
the following aspects will be discussed: |
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1. Definition of failure,
relapse, partial relapse and retention |
2.
Frequency of relapses
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2.1
in general
2.2
in relation to different symptoms
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3.
Etiology of relapse
3.1
lack of functional adaptation
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3.1.1 bone
3.1.2 periodontal fibers
3.1.3 muscles
3.1.4 function/Para function
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Post treatment growth |
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Reoccurrence of etiological factors |
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Third molars |
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Unknown multiple factors |
8.
Prevention of relapses (retention)
8.1
fixed retainers
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8.1.1 1-1 retainer, 3-3 retainer, 4-4 retainer etc.
8.1.2 intracoronal fixation
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8.2
removable retainers
8.2.1 bimaxillary retainers
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8.2.1.1 functional appliances
8.2.1.2 standard positioners
8.2.1.3 unimaxillary appliances
8.2.1.4 unimaxillary positioners
8.2.1.5 Hawley appliances
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