orthodontic Myofunctional appliances /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. …

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.

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  • 1. MYOFUNCTIONAL APPLIANCES INDIAN DENTAL ACADEMY Leader in Continuing Dental Education www.indiandentalacademy.com www.indiandentalacademy.co
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  • 4. HISTORY KINGSLEY – Introduced the term” jumping the bite” for patients with mandibular retrusion. -1880He used a vulcanite palatal plate with an anterior inclinedplane which guided the mandible to a forward position whenthe patient closed on it.KINGLEY’S –idea influenced the development of functionaljaw orthopedics. www.indiandentalacademy.co
  • 5. Robin’s monobloc- developed in early 1900’sis the forerunner of all the functional appliances.But the activator developed by ANDRESEN in Norwayin the 1920’s was the first functional appliance to bewidely acceptedFunctional appliances were introduced into AmericanOrthodontics in the 1950’s. www.indiandentalacademy.co
  • 6. BIMLER’S Labio-lingual appliances- -1949VESTIBULAR APPLIANCES-(FRANKEL)- 1967 TWIN BLOCK APPLIANCES--1977 www.indiandentalacademy.co
  • 7. DEFINITIONFunctional appliance:-by definition is onethatchanges the posture of the mandible,holdingit open (or) open and forward (Proffit).Stretch of the muscles and softtissues createspressures transmitted to the dentaland skeletal structures,moving teethand modifying growth. www.indiandentalacademy.co
  • 8. Definition:Functional appliances are passiveappliances which harness naturalforces of the oro-facial musculaturethat are transmitted to theteeth and alveolar bone in apredetermined direction. www.indiandentalacademy.co
  • 9. All functional appliances are intraoraldevices,and nearly all of them are tooth borneor supported by teeth.These appliances are removable,primarilyconsisting of acrylic with wire components forretention &support.Most of the functional appliances are used tocorrect early class-2 malocclusions and somecases of class –3 malocclusions. www.indiandentalacademy.co
  • 10. CLASSIFICATIONAccording to “Tom Graber”:-1.Group- A- Teeth supported appliances, -catlan’s appliance,Inclined planes.2.Group –B-Teeth/tissue supported appliances. -Activator,Bionator etc3.Group-C- Vestibular positioned appliances with isolated support from tooth /tissue, -Frankel appliance, Lip bumpers. www.indiandentalacademy.co
  • 11. ACCORDING TO PROFITT 1.Tooth borne passive- -Andersen activator -Woodside and Harvold activator -Bionator 2.Tooth borne active- -Modified activator -Expansion activator -Orthopaedic Corrector -Stockli headgear activator 3.Tissue borne appliances(Passive)s -Frankel appliance. www.indiandentalacademy.co
  • 12. Other classifications 1.MYOTONIC APPLIANCES:- Depend muscle mass for their action. 2.MYODYNAMIC APPLIANCES:- Depend on muscle activity for for their function. . www.indiandentalacademy.co
  • 13. 1.REMOVABLE FUNCTIONAL APPLIANCES -Activator -Bionator -Frankel -Twin Block2.Fixed functional appliances -Herbst -Jasper jumper -Forsus (Fatigue resistant device) www.indiandentalacademy.co
  • 14. ADVANTAGES OF FUNCTIONAL APPLIANCES1.To eliminate abnormal perioral muscle functions which interfere with normal bone growth.2.Treatment can be started in early mixed dentition stage.3.Easier to maintain oral hygiene.4.Do not have any side effects of mechanotherapy Such as---enamel decalcification,root resorption, --gingivitis. www.indiandentalacademy.co
  • 15. Lip pads hold the lips away fromteeth and force the lips to stretchto obtain an oral seal. www.indiandentalacademy.co
  • 16. The buccal shield holds the soft tissueaway from the dentition and facilitatesposterior dental expansion by disruptingthe tongue –cheek equilibrium. www.indiandentalacademy.co
  • 17. LIMITATIONS OF FUNCTIONAL APPLIANCES1. Individual tooth movements cannot be achieved .2. Cannot be used in adult patients.3. Patient cooperation is essential for the success of the treatment.4. Cases treated with functional appliance may require fixed appliance therapy for final detailing of occlusion.-2phase Rx. www.indiandentalacademy.co
  • 18. BIONATOR Developed by-Balter-1950HORSE SHOE SHAPED-acrylic lingual plate www.indiandentalacademy.co
  • 19. VESTIBULAR SCREEN (OR) ORAL SCREEN Introduced by Newell -1912 www.indiandentalacademy.co
  • 20. MODIFICATIONS OF ORAL SCREENKRAUS - -WITH HOLESHOTZ -- LINGUAL SIDEPROJECTION OF ACRYLIC TOKEEP TOUNGE AWAY. www.indiandentalacademy.co
  • 21. TWIN BLOCK APPLIANCE www.indiandentalacademy.co
  • 22. Introduced by william J.Clark in--1982 www.indiandentalacademy.co
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  • 29. Advantages of delta clasp:1.Does not open with repeated insertion & removal.2.Maintains its shape better and requires less adjustment.3.Subjected to less breakage. www.indiandentalacademy.co
  • 30. MODIFICATIONS OF TWIN BLOCKBROADBENTCLARKMAHONY-TO OPEN & TO CLOSEMODIFIED McNamara www.indiandentalacademy.co
  • 31. MODIFIED McNamara TWIN BLOCKwww.indiandentalacademy.co
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  • 36. ACTIVATORDEVELOPED BY VIGGO ANDRESEN-1908LATER WAS CALLED “NORWEGIAN APPLIANCE”Modifications were done in Norway teaming up with HAUPLThey later called it ACTIVATOR- due to its ability toactivate the muscles. www.indiandentalacademy.co
  • 37. INDICATIONS OF ACTIVATOR1. CLASS 2 DIV-1 MALOCCLUSION2. CLASS 2 DIV-2 MALOCCLUSION3. CLASS 3 MALOCCLUSION4. CLASS 1 OPENBITE5. CLASS 1 DEEP BITE6. FOR POST TREATMENT RETENTION www.indiandentalacademy.co
  • 38. CONTRANDICATIONS1. In children with excess LFH-and extreme vertical mandibular growth .2. In class –1 crowding.3. Has limited application in non-growing children.4. In severely proclined lower incisors. www.indiandentalacademy.co
  • 39. ACTIVATOR- AND ITS MODIFICATIONSwww.indiandentalacademy.co
  • 40. FUNCTION REGULATOR OR FRANKEL APPLIANCE www.indiandentalacademy.co
  • 41. FRANKEL APPLIANCE Developed by Prof. ROLF FRANKEL of GERMANYAlso called –Vestibular Appliance and Oral –Gymnastic appliance (FRANKEL –recommended certain oral excercises called oral gymnastics-hence the name) www.indiandentalacademy.co
  • 42. FRANKEL APPLIANCE( OR)FUNCTIONAL REGULATOR www.indiandentalacademy.co
  • 43. TYPES OF FRANKEL 1. FR1a 2. FR1b 3. FR1c 4. FR2 5. FR3 6. FR4www.indiandentalacademy.co
  • 44. Parts of frankel:-1.Buccal shields2.Lip pads- upper and lower3.lingual shield4.Palatal bow5.Labial bow—upper or lower6.Lingual stabilizing bow7.Canine clasp8.protrusion bow9.Lower lingual spring10.Lower labial wires11.Occlusal rest. www.indiandentalacademy.co
  • 45. Parts of FR-2-Class 2-div-1&2 The acrylic components include:- A.Buccal shields B.Lip pads C.Lower lingual pad The wire components include:- A. Palatal bow B.Labial bow C.Canine Extensions D.Upper Lingual wire E.Lingual crossover wire F.Support wire for lip pads G.Lower lingual springs. www.indiandentalacademy.co
  • 46. DIFFERENCES BETWEEN ACTIVATOR & FRANKELwww.indiandentalacademy.co
  • 47. LATERAL & MEDIAL PTERYGOID LATERAL PTERYGOID: It is a short & conical muscle. Has upper & lower head. MEDIAL PTERYGOID: Quadrilateral muscle Has superficial & deep head www.indiandentalacademy.coDr VINEETH V T
  • 48. MODE OF ACTION OF FUNCTIONAL APPLIANCEwww.indiandentalacademy.co
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  • 52. Commonly used fixed functional appliances:- 1. Herbst Appliance 2. Jasper jumper 3. Forsus (Fatigue resistant device.) 4. MARA –Appliance (Mandibular anterior 5. repositioning device) 6. Eureka Spring www.indiandentalacademy.co
  • 53. FIXED MYOFUNCTIONAL APLIANCESwww.indiandentalacademy.co
  • 54. THANK YOUwww.indiandentalacademy.co