fixed functionals /fixed orthodontic courses by IDA

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The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats. Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics, Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call 0091-9248678078

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www.indiandentalacademy.com INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com FIXED FUNCTIONAL APPLIANCES

Goals of Orthodontics and Dentofacial Orthopedics:

Goals of Orthodontics and Dentofacial Orthopedics Achieve a good occlusion Harmonize the basal structures Class I malocclusions Skeletal malocclusions www.indiandentalacademy.com

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A skeletal Class II - fault with the maxilla www.indiandentalacademy.com

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A skeletal Class II - fault with the mandible www.indiandentalacademy.com

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A skeletal Class II - fault with the mandible www.indiandentalacademy.com

Components of a growing skeletal Class II malocclusion:

Components of a growing skeletal Class II malocclusion Maxillary prognathism – 30% Mandibular retrusion - 70% ---- Mc’Namara (1981) Mastorakos study( 1984) --- slight disagreement with Mc’Namara’s values www.indiandentalacademy.com

Skeletal malocclusions:

Skeletal malocclusions If your only instrument’s a hammer, then every problem looks like a nail. --- Maslow www.indiandentalacademy.com

Skeletal malocclusions:

Skeletal malocclusions Skeletal Class II or Skeletal Class III Treated by ---- a) Functional appliances b) Headgear c) Combination d) Camouflage e) Surgical intervention Growth Modulation www.indiandentalacademy.com

Functional appliances:

Functional appliances Factors essential to success: a) Proper diagnosis and appliance fabrication b) Growth parameters c) Appliance wear – Patient compliance www.indiandentalacademy.com

Patient compliance:

Patient compliance Facts : Percentage of poor compliance --- 50% Both patients and families mis-represent the extent of compliance Compliance decreases the longer the patient is treated www.indiandentalacademy.com

Evolution of the Non-compliance appliances:

Evolution of the Non-compliance appliances Subdivided into : Fixed functional Orthopedic appliances Fixed intra-arch appliances Fixed Inter-arch appliances www.indiandentalacademy.com

Fixed functional appliances:

Fixed functional appliances History : Kingsley’s bite jumping plate was a fixed one Emil Herbst read a paper on the ‘Herbst appliance’ in 1905 The Herbst was resurrected only in 1977 Subsequent improvements within the Herbst www.indiandentalacademy.com

Fixed functional appliances:

Fixed functional appliances History : Inter-arch springs started becoming popular after the introduction of the Jasper Jumper in 1987 As many as 24 fixed functional appliances could be traced !! www.indiandentalacademy.com

Fixed functional appliances:

Fixed functional appliances Classification : Rigid Fixed functionals – ‘Herbst’ like Flexible fixed functionals – ‘Jasper’ like Hybrid appliances www.indiandentalacademy.com

Fixed functional appliances:

Fixed functional appliances Rigid Fixed functionals Herbst and its modifications The Mandibular Anterior Repositioning splint (MARS) The Ventral Telescope The Magnetic telescopic device The Mandibular Protraction Appliance (MPA I – IV) www.indiandentalacademy.com

Fixed functional appliances:

Fixed functional appliances Rigid Fixed functionals – Essential characteristics Telescoping mechanism Very rigid and permit restricted movements Effects are usually skeletal (orthopedic) Usually indicated in Class II patients www.indiandentalacademy.com

Fixed functional appliances:

Fixed functional appliances Rigid Fixed functionals (Contd..) 6. The Universal Bite Jumper 7. The Biopedic appliance 8. The Mandibular anterior repositioining appliance (MARA) 9. The Intra-oral Snoring Therapy Appliance (IST) 10. The Ritto Appliance www.indiandentalacademy.com

Fixed functional appliances:

Fixed functional appliances The Herbst appliance – Components Tube and plunger assembly Axle and screw assembly anchored onto the upper molars and the lower bicuspids www.indiandentalacademy.com

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Components of the Herbst www.indiandentalacademy.com

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Components of the Herbst www.indiandentalacademy.com

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The Herbst with crowns – Langford design www.indiandentalacademy.com

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The Herbst with Edgewise appliance – Dischinger design or The ‘Bioprogressive Herbst’ www.indiandentalacademy.com

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The Cantilever Herbst www.indiandentalacademy.com

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The Cantilever Herbst www.indiandentalacademy.com

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The Acrylic Splint Herbst www.indiandentalacademy.com

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Variations in the Herbst appliance The MALU – Mandibular advancement locking unit – Swadesh Kumar www.indiandentalacademy.com

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Variations in the Herbst appliance The MALU – Mandibular advancement locking unit – Swadesh Kumar www.indiandentalacademy.com

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Variations in the Herbst appliance The Flip-Lock Herbst - Robert Miller www.indiandentalacademy.com

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Variations in the Herbst appliance The Flip-Lock Herbst - Robert Miller www.indiandentalacademy.com

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Mandibular retrusion Post Surgical Prevention of Bruxism Diseases of TMJ Indications of Conventional Herbst www.indiandentalacademy.com

Duration of Treatment:

Duration of Treatment According to Herbst – 15months According to Pancherz – 6 - 9months According to Weislander – 6-9months + 2-3yrs of retention using activator www.indiandentalacademy.com

Problems with Conventional Herbst:

Problems with Conventional Herbst Difficulty in fabrication Breakages Restricted lateral movements Cost www.indiandentalacademy.com

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Effects due to the Herbst appliances www.indiandentalacademy.com

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Herbst like appliances a) The Ventral telescope www.indiandentalacademy.com

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Herbst like appliances b) The Biopedic appliance - GAC www.indiandentalacademy.com

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Herbst like appliances c) The MPA – Filho -1995,97,98 and 2001 www.indiandentalacademy.com

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Herbst like appliances c) The MPA – Filho -1995,97,98 and 2001 www.indiandentalacademy.com

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Herbst like appliances d) The Magnetic Telescope device – Ritto-1997 www.indiandentalacademy.com

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Herbst like appliances e) The MARA appliance – Toll and Eckhart www.indiandentalacademy.com

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Herbst like appliances d) The MARA appliance www.indiandentalacademy.com

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Lateral views of superimposition of the 3D mandibles before and after treatment, registered according to the anatomical landmarks of the brain (green, the 3D mandible before treatment; pink, the 3D mandible after treatment) www.indiandentalacademy.com

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www.indiandentalacademy.com Thank you www.indiandentalacademy.com Leader in continuing dental education

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