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Treatment of CLII malocclusion
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CLII can be classified into
CLII div 1 CLII div 2
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What we mean by CLII
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Some times Molar CLI & canine CLII Molar CLII & canine CLI
Dental CLII on skeletal CLI or CLIII due to habits ?
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T. Wallen
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Etiology of class II 1. skeletal
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2. Soft tissue Over jet & over bite
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3. Dental factor In case of large teeth size so we either have
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In association with skeletal relationship
the muscles of the lips and tongue govern the inclination and degree of vertical development of the incisors, and thus govern the incisal overjet and overbite.
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Treatment objectives in CLII div1
Relief of crowding Reduction of over bite Reduction of over jet Correction of CLII of buccal segment teeth
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Treatment of class II division 1:
There are many factors that must be taken in Mind during treatment: I- Age of the patient. 2-severity of the cases. 3- Patient's cooperation.
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If the patient is growing start with CLII correction.
But CLII should be due to antero posterior. But if it was due to vertical problem so further growth of the mandible will lead to posterior rotation of the mandible and in competent lips.
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Types of treatments Young growing
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adult Removable fixed
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Sever CLII 1 Combination of orthodontic treatment and surgery
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Treatment by removable appliance
CLII div 1 Skeletal CLI or mild sk. CLII Canine mesially angulated Cooperative patient
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always correct the overbite- before
NOTE: always correct the overbite- before the overjet correction
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Treatment by removable appliance
Stage 1 Exo. Up. 4 Adam 56 Finger spring or BCR on 3 Fitted labial arch Acrylic base plate Ant. Bite plane (flat or inclined)
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Stage 2 Double Adam clasp 56 Stoppers C clasp 3 Ant bite plane
Robert retractor 2112
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Stage 3 Retainer Adam 6 Hawly Acrylic base plate
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Treatment by fixed appliance
Canine vertically or distally angulated Upper incisors not proclined 90 degree rotation Moderate – sever CLII Residual space Increased over bite
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Surgical correction Adult Vertical maxillary excess Gummy smile
Retruded mandible
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وجــــــهان للحق غير الله ما عبدا وجه منير ووجـــــه يستطير هدى
هـما الجواد وموسى فاعتصم بهما فــــــفيهما الفوز دنيا والنجاة غدا هــــــما العماد لمن طاحت به عمد هما الســـــــناد لظـهر يبتغي سندا
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The crown of lower third molar is suspected to be completed in age of -------
6-9 years 18-24 years 10-14 years 12-16 years
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