Effective Biomechanics for Mini-Implants

Clinical Applications

REV6/11

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The following depictions represent some of the most common usesfor skeletal anchorage in clinical treatment at the present time. Theyare by no means the sum total of all the possible uses for TADs.

Likewise, the Biomechanics shown in the case examples shouldnot be considered as the only method of choice possible. It is left tothe clinician to determine how to best treat each specific case andthe proper Biomechanics to use based on his/her training and caseanalysis and treatment plan.

Compressed Spring2nd

Crimpable Stop

Screw repositioned to distalize bicuspid

Wire & Crimpable Stop

STEP 3:

Wire & Crimpable Stop

Bracket Head Screw

Compressed spring

Crimpable Stop

STEP 2:

Bracket Head Screw

Compressed Spring

Wire & Crimpable Stop

STEP 1:

Example A:Molar Distalization (Tipping) Note - Passive Self-Ligating brackets shown

OPTION 1:

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STEP 3:

Compressed Spring

2nd Crimpable Stop

Screw repositioned to distalize bicuspid

Wire & Crimpable Stop

STEP 1:

OPTION 2:

Example A:Molar Distalization (Tipping) Note - Passive Self-Ligating brackets shown

Bracket Head Screw

Wire Bonded to Anchor Teeth

Compressed Spring

STEP 2:

Compressed Spring

Crimpable Stop

Wire Bonded to Bicuspid

Bracket Head Screw

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Example B:Maximum Anchorage - Friction FreeEn Masse Anterior Retraction

Button Head Screw

CrimpableHook

Ligature Tie

Spring with double pear ends

Example C:Maxillary Incisor - Friction FreeIntrusion and Retraction

Spring with Bottle Cap End

Pear End

Bracket Head Screw

TPA: Banded or Bonded to maintain posterior segments

Note: Arrow indicates direction of movement

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Example D:Maxillary Incisor Retraction and Intrusion - Friction Free

Note: Arrow indicates direction of movement

Bracket-HeadScrewInactive

Intrustion/Retraction Cantilever

Bracket-HeadScrew

Activated

Intrustion/Retraction Cantilever

Steel ligature tie

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Example E:Molar Intrusion

Bracket Head Screw shown

Bracket Head Screw shown

Figure 8Ligature Tie

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Example F:Mandibular Incisor IntrusionFriction Free

Intrusion Arm Bracket-HeadScrew

Activated

Inactive

Note: Arrow indicates direction of movement

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Example G:Molar Protraction

Example H:Molar Uprighting and Protration - Friction Free

Buccal Segment Laced Together with Steel Ligature Cross Tube

Spring with Double Pear ends

Bracket Head Screw

Bracket Head Screw

Spring with Pear End

Bottle Cap End

Cross TubeLigature Tie

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Example I:Molar Mesialisation and Uprighting with Cantilever

Passive

Bracket Head Screw

Cross Tube

Activated

Cantilever Wire

Spring with double pear ends

Bracket Head Screw

Cross Tube

Cantilever Wire

Spring with double pear ends

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Example J:Leveling the Curve of Spee

Bracket Head Screw

Cross Tube

Note: Arrows indicate direction of movement

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Example K:2nd Molar Uprighting with Cantilevers

Passive

Activated

Bracket Head Screw

Cross Tube

Bracket Head Screw

Cross Tube

Cantilever Wire

Cantilever Wire

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Example M:Class II Div II - Incisor Alignment

Bracket Head Screw

Note: Drawing shows corrected tooth positions

Example L:Maxillary Molar Protraction

Figure 8Ligature Tie

Double Pear End Spring

Burstone Bracket

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