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Interceptive orthodontics Part II 1

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Page 1: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Interceptive orthodontics

Part II

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Page 2: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

• Serial extraction

• Correction of developing cross bite

• Control of abnormal habits

• Space regaining

• Muscle exercises

• Interception of skeletal mal relation

• Removal of soft tissue or bony barrier to enable eruption of teeth 2

Page 3: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Posterior cross bite

• Skeletal

• Dental

• Functional – Unilateral

– Bilateral 

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Page 4: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

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UNILATERAL BILATERAL

Page 5: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Treatment procedures

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Quad helix  Micro screws 

Page 6: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Control of abnormal habits

• Thumb / digit sucking

• Mouth breathing

• Tongue thrusting

• Lip sucking / biting 

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Page 7: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Treatment procedure

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TONGUE CRIB LIP BUMPER

Page 8: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Space regainers

• Mesial tipping or drifting of permanent first molars on premature loss of deciduous second molar , reducing the arch length

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Page 9: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

• Extensive caries

• Ecotopic eruption

• Premature extraction of primary molars

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Page 10: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Timing of distalization

• 7‐10 yrs of age– Incomplete root formation

– Second molars are not erupted 

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Page 11: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Treatment procedures

• Fixed appliances– Open coil / herbst space regainer– Jackscrew space regainer– Gerber space regainer

• Removable appliance– Hawley’s appliance

• With helical spring• Split acrylic dumb‐bell spring• With sling shot elastic• Palatal spring• Expansion screws 11

Page 12: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

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Herbst space regainer Jack screw space regainer

Page 13: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

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Gerber space regainer

Page 14: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

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Helical spring Split acrylic dumb bell spring

Page 15: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

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Palatal spring Expansion screw

Page 16: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Muscle exercises

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• To guide the development of occlusion

• To allow optimal growth patterns

• To provide retention and stability post orthodontically

Page 17: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Lip exercises

• To obtain lip seal in hypotonic upper– Stretch the upper lip to overlap the lower lip

• Self• Parentral help

– Hold a piece of paper– Swishing of water– Massaging of lips– Play a reed musical instrument– Scotch tape– Oral screen– Button pull exercise– Tug of war exercise 17

Page 18: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Oral screen

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Page 19: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Tongue exercises

• For swallow pattern– One elastic swallow

– Two elastic swallow

– Tongue hold exercise

• Tongue tie– Hold pull exercise

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Page 20: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Masseter muscle exercise

• Clench the teeth for a count of ten and relax.

• Repeat till it tires.

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Page 21: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Pterygoid muscle exercises

• Class II pts

• Protrude the mandible as much as possible and retract

• Improvement of the position of mandible gradually.

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Page 22: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

limitations

• Does not drastically alter any growth pattern

• Not a substitute for  corrective orthodontics

• Patient compliance

• Worsen

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Page 23: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Interception of skeletal malocclusion

• Class II

• Class III

• Functional appliances– Tooth borne

• Active

• Passive

– Tissue borne

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Page 24: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Class ii malocclusion

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Page 25: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Class ii malocclusion

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Page 26: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Visual treatment objective

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Page 27: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Class iii malocclusion

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Page 28: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Class iii malocclusion

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Page 29: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Cad/cam myofunctionalappliance

• Farrell in australia

• Flexible

• Inherent memory effects – non thermoplastic polyurethane

• Tooth guidance and functional effects too.

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Page 30: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

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• Soft Blue pre‐orthodontic trainer– Aberrant muscle movements

– Mild tooth movements 

– 6 months

Page 31: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

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• Firmer pink pre‐orthodontic trainer– Greater forces for the alignment of teeth

Page 32: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

indications

• Mandibular anterior crowding

• Class II div 1 and 2

• Anterior open bite

• Deep bite

• Mild Class III/Pseudo Class III

• Oral habits

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Page 33: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

contraindications

• Posterior crossbite

• Sever Class III

• Nasal obstruction

• Non‐cooperative child

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Page 34: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

• One hour in the day

• During sleep

• Blue trainer – 6 ‐ 8 months

• Pink trainer – 12 months

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Page 35: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

adjustments

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• Narrow mouth‐trim distal ends

• Tongue tag area –V cut on either sides

• Extreme Class II cases – 2‐3 mm of distal ends are trimmed

Page 36: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

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• Children less than 6 yrs of age – 4‐6 mm is trimmed

• Class III cases – upper labial bow is trimmed

• Lip bumper effect –lower labial bow is trimmed

Page 37: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

uses

• More economical

• More stable

• Improvement in facial profile and features

• Decrease the need for extractions

• Reduces the duration of corrective orthodontics 

• Lateral expansion – Farrel bent wire system 37

Page 38: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Removal of soft tissue / bony barrier

• Retained deciduous teeth

• Supernumerary teeth

• Fibrous / bony obstruction of the erupting tooth bud

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Page 39: Interceptive orthodontics - SRM University orthodontics ... – Jackscrew space regainer – Gerber space regainer ... • With sling shot elastic • Palatal spring

Thank you

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