tipping mechanics treatment - columbia university mechanics treatment_bw.pdfestablish ideal esthetic...
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TIPPING MECHANICS TREATMENT
Malcolm E. Meistrell, DDSProfessor of Clinical Dentistry
Division of OrthodonticsSchool of Dental and Oral Surgery
Columbia University
Goals
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Unravel Open bite Class I Position of molars and canines Correct Rotations Correct Crossbites Level Occlusal Plane
STAGE I
Close Spaces Overcorrect class I Relationships Maintain all goals achieved in Stage I
STAGE II
Maintain all goals achieved in Stages I & II Correct occluso-gingival relationships of
Premolars Correct bucco-lingual relationships of
Premolars
STAGE pre- III
Upright Torque Maintain all goals achieved in Stages I & II
STAGE III
Establish ideal occlusion Establish ideal esthetic relationships
STAGE IV
Ease of wire changesControlRapid changes in the vertical dimensionsMidline integrity protected/preservedImproved rotational control
TIP EDGESADVANTAGES
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WHY TIP EDGE?
Tipping mechanicsSelf limiting bracketHorizontal loadingNo undesirable couplesMore precise finishColors
TIP EDGEADVANTAGES
Automatic progression from tip to translationVertical slot/auxillary usePredetermined, full power uprightingFewer archwiresTorque options
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BRACKET DESIGN
Initial tip limitedTorque built into baseFinal tip built into bracket faceOver torque only possible with round wires
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PATIENT LR SNA 77 SNB 74 ANB 3 SN GoGn 40 PP GoGn 31 L1 Apo 8.5 L1 GoGn 96 U1 SN 117 N: ANS/ANS:ME .72 Wits +1
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