Anchorage Implants

8/6/2019 Anchorage Implants

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ANCHORAGE

Recent Developments

Clinical Overview

Saba Waqar Qureshi


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SINGLE/ PRIMARY ANCHORAGE

Resistance is provided by one tooth with

greater alveolar support to another tooth

with lesser support.


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COMPOUND ANCHORAGE

Resistance

provided by teeth

with greater

support used tomove teeth with

lesser support.

INVISALIGN

SYSTEM


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MULTIPLLE/ REINFORCED

ANCHORAGE

More than one type of resistance units

utilized for augmentation of anchorage


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1. Intra oral reinforcement

Increasing the number of teeth

Modifying type of tooth movement (bodily)

Intermaxillary traction

Bands

Functional appliances (use ofupper anterior inclined plane)

Transpalatal and lingual arches

Implants


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2. Extraoral reinforcement

Cranium

Back of neck

Face


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TRANSPALATAL AND LINGUAL ARCH


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IMPLANTS- Concept

Skeletal anchorage

Absolute anchorage


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IMPLANTS- Indications

Hypodontia/ marked tooth loss

Intra oral anchorage is limitedExtra oral is rejected by patient

Lack of patient compliance


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IMPLANTS- Advantages

Reduced anchorage demand

Minimally invasive procedures

Reduced reliance on patient complianceReduced treatment time

Greater patient comfort


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IMPLANTS-Available modalities

Large diameter and small diameter-

Temporary anchorage devices (TADS)/

mini screws

Mini and microimplants

Open/ closed

Self-tapping/ self-drilling

Oblique/ perpendicular


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IMPLANTS: Sites and Action

MAXILLA


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Infrazygomatic crest area

Retraction of maxillary

anteriors;

Intrusion of maxillary

posteriors

BUCALLY


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BUCALLY

between maxillary first and second molars;

between maxillary first molar and secondpremolar

Intrusion of

maxillary molars/

posteriors


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Bucally between the maxillary molar and

premolar

Retraction of

maxillary anteriors;


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BUCALLY between canine and first

premolar

Distal movement of maxillary molars

Mesial movement of maxillary molars

Intrusion of maxillary buccal teeth


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PALATALLY between the second

premolar and first molar

Retraction of

maxillary anteriors;

Intrusion of

maxillary molars


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Mid PALATAL area

Correction of open

bites, crossbites,

esp unilateral.


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IMPLANTS: Sites and Action

MANDIBLE


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Facially in the symphysial region;

bucally between premolar and canine

For protrusion of

mandibular

anteriors

Protraction of

mandibular molars


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Bucally between canine and premolar

Protraction of

mandibular

molars.


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IMPLANTS- other sites

In the maxillary tuberosity region

Labially between maxillary incisors

Reteromolar regionBucally between mandibular first and

second molars


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CLINICAL CONSIDERATIONS

Before treatment: Anchorage planning;

During treatment: Anchorage monitoring

After treatment: Anchorage failureasessment.


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ANCHORAGE PLANNING- Factors

2. No of teeth

3. Jaw involved

4. Tooth movement

5. Duration

6. Age

7. Skeletal pattern

8. Occlusal interlock

9. Anchorage demand

10. Anchorage loss/ burn

1. Root surface area


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ANCHORAGE MONITORING

Single arch treatments

Upper and lower fixed appliance treatment


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ANCHORAGE FAILURE

Failure to appreciate fully the anchorage

requirements

Poor patient compliance


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Anchorage Implants

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