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Various functional appliances & its components /certified fixed orthodontic courses by Indian dental academy
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Various functional appliances & its components /certified fixed orthodontic courses by Indian dental academy

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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

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  • 1. FUNCTIONAL APPLIANCES • Also called Myofunctional appliance. • These appliance are used for growth modification procedure that are aimed at intercepting & treating jaw discrepancies. Myofunctional appliances Removable Fixed Activator, Bionator Herbst appliance Jasper jumper www.indiandentalacademy.com
  • 2. INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
  • 3. • Activator: By Anderson in 1908.  Also called Norwegian appliances. Components-Labial bow -Jack screw(Optinal in maxillary arch) -Acrylic portion Indication1)Class II Div 1 malocclusion 2)Class II Div 2 malocclusion 3)Class III malocclusion 4)Class I openbite malocclusion 5)Class I deep bite malocclusion www.indiandentalacademy.com
  • 4. Contraindication :1)Not used in correction of Class I problems. 2)In children with excess lower facial height. 3)Children with procumbent incisors. 4) Children with nasal stenosis. Advantage :1)It uses existing growth of jaws. 2)Minimum oral hygiene problem. 3)Interval between appointment is more. 4) Appointments are usually short. 5) More economical. www.indiandentalacademy.com
  • 5. Disadvantage:1)Require patient cooperation. 2)Can’t produce precise detailing & finishing of occlusion. 3)May produce moderate mandibular rotation. Mode of activation :The activator induces musculoskeletal adaptation by a new pattern of mandibular closure. This appliances fits loosely in the mouth. The patient has to move the mandible forward to engage the appliance. This results in stretching of elevator muscles of mastication which starts contracting thereby setting up a myotactic reflex. In addition to this myotactic reflex, a condylar adaptation by backward & upward growth occurs. www.indiandentalacademy.com
  • 6. • Bionator:-By Balters in 1950s. -Less bulky & elastic than activator. -3 types:  Standard bionator  Class III appliance  The open bite appliance 1. Standard Bionator -Used in treatment of Class II Div 1 & Class I malocclusion having narrow dental arch. www.indiandentalacademy.com
  • 7. 2)Class III appliances:Used in mandibular prognathism. The palatal arch is placed in opposite direction. The vestibular wire runs over the lower incisors instead of terminating at lower canines. 3)The open bite appliances:Used in open bite cases. The palatal & the vestibular arch wires same as standard appliance. The maxillary acrylic portion is modified so that even the anterior area is covered. www.indiandentalacademy.com
  • 8. • Indication:-Class II Div 1 malocclusion in the mixed dentition using standard bionator under following condition  Well aligned dental arches.  Function retrusion.  Mild to moderate dental discrepancy.  Evidence of labial tipping is seen. • Contraindication: Class II relation caused by maxillary prognathism.  Vertical growth pattern.  Labially tipped lower incisors. www.indiandentalacademy.com
  • 9. • Advantage: Less bulky.  Can be worn full time except during meals.  Appliance exert a constant influence on tongue & perioral muscle. Disadvantage: Difficulty in correctly managing it. www.indiandentalacademy.com
  • 10. • Frankel Appliance:- -Developed by Prof. Rolf Frankel. -Also known as Functional regulator, Functional corrector, Oral gymnastic appliance. Principles1. 2. 3. 4. 5. Vestibular arena of operation. Sagittal correction via tooth borne maxillary anchorage. Differential eruption guidance. Minimal maxillary basal effect. Periosteal pull by buccal shields & pads. www.indiandentalacademy.com
  • 11. Types of functional regulators:FR 1- For treatment of Class I & Class II Div 1. 1a-Class I malocclusion where minor to moderate crowding is present. -Class I deep bite. 1b-Class II Div 1 malocclusion where overjet does not exceed 5mm. 1c-Class II Div1 malocclusion where overjet is more than 7mm. FR 2-ClassII Div 1 & 2. FR 3- Treatment of Class III. FR 4- treatment of open bite & bimaxillary protrusion. www.indiandentalacademy.com
  • 12. • Herbst appliance:-Fixed functional appliance. -Popularized by Pancherz(1979). Indication-Dental Class II malocclusion. -Skeletal Class II mandibular deficiency. Contraindication-Dental & skeletal open bite. -Vertical growth with high maxillomandibular plane angle. -Excess lower facial height. -Case prone to root resorption. Disadvantage-Prone to breakage. -Lateral movement restricted. www.indiandentalacademy.com
  • 13. • Jasper jumper:Consists of two vinyl coated auxillary spring which are fitted to fully banded upper & lower fixed appliances. Indication – - ClassII malocclusion. - Deep bite with retroclined lower incisors. Contraindication :-Dental & skeletal open bite. -Minimum buccal vestibule space. -Vertical growth pattern with increased lower facial height. Disadvantage:www.indiandentalacademy.com Oral hygiene compromised.
  • 14. Orthopaedic Appliances • • • 1) Head gear Face mask Chin cup Head gear:- -Most commonly used. -Ideally indicated in patient with excessive horizontal growth of maxilla with or without vertical change along with some protrusion of maxillary teeth. -Most effective in prepubertal period. -Used for distalization of molars. www.indiandentalacademy.com
  • 15. Components1)Face bow 2)Force element 3)Head cap /Cervical strap  Face bow: i)Outer bow- made up of 1.5mm round stainless steel wire.This can be short, medium or long. ii)Inner bow- made up of 1.25mm round stainless steel wire & contoured around the dental arch and fixed in buccal tube which is fixed on maxillary first molar.Stop are placed to prevent sliding from tube. www.indiandentalacademy.com
  • 16. iii)The junction:It is a rigid joint of inner & outer bow. It is placed at the midline of bows.  Force element:It is the assembly which provide the force to bring about the desired effect. This may comprises of spring, elastics & any other stretchable material.  Head cap:Used for anchorage purpose. Principles of head gear: Centre of resistanceThe centre of resistance for a molar is usually at the midroot region. Force applied through centre of resistance cause bodily movement. -if force pass below it- distal tipping of crown. - if force pass above it- distal tipping of root. www.indiandentalacademy.com
  • 17.  Centre of resistance of maxilla:It is located above the roots of premolar teeth. Force passing through it – translation of maxilla in distal direction. Force passing above and below it- rotation of maxilla.  Point of origin of force:i) Cervical ii) Occipital iii) Combination www.indiandentalacademy.com
  • 18. • Types- i)Cervical: -Take anchorage from nape of neck. -Causes extrusion of molars. -Can move maxilla & maxillary dentition in distal direction. -Indicated in low madibular angle cases. ii)Occipital: -Take anchorage from back of head. -produce distal & superiorly directed force on maxillary dentition & maxilla. www.indiandentalacademy.com
  • 19. iii) Combination:Force exerted by both are equal & distal & slight upward force is exerted on maxillary dentition & maxilla. 2)Face mask:-Also called Reverse pull head gear or Protraction head gear. -By Hickham in 1972. -Parts i)Forehead cap ii)Metal frame iii)Chin cup -Used primarily for protraction of upper teeth or arch. www.indiandentalacademy.com
  • 20. Types of face mask:i)Delaire type of face mask ii)Tubinger type of face mask iii)Petit type mask www.indiandentalacademy.com
  • 21. • Chin cup:It is sometimes referred to is an extraoral orthopaedic device that covers the chin & is connected to a head gear. It is used to restrict the forward & downward growth of mandible. -Types :  Occipital pull chin cup  Vertical pull chin cup www.indiandentalacademy.com
  • 22. Thank you www.indiandentalacademy.com Leader in continuing dental education www.indiandentalacademy.com