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Head gears /fixed orthodontic courses

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HEAD GEARS

INDIAN DENTAL ACADEMY
Leader in continuing dental education
www.indiandentalacademy.com
www.indiandentalacadem...

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Head gears /fixed orthodontic courses


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
00919248678078


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
00919248678078

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Head gears /fixed orthodontic courses

  1. 1. HEAD GEARS INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
  2. 2. DEFINITION Headgear is a device by which extraoral force is almost always applied to the first molars via a face bow and a strap on the head or neck for anchorage www.indiandentalacademy.com
  3. 3. Uses: 1.Treating skeletal problems in preadolescent children 2.Anchorage 3.Molar distallization www.indiandentalacademy.com
  4. 4. Types of Head gears 1.High pull H.G(parietal) 2.Medium pull H.G(occipital) 3.Low pull H.G(cervical) 4.Combee pull H.G 5.High pull H.G with ‘J” Hooks 6.Medium pull H.G with ‘J’Hooks 7.Low pull H.G with ‘J’ Hooks 8.Reverse pull H.G www.indiandentalacademy.com
  5. 5. Mechanical Principles: 1.F ORCE:It is that which changes or tends to change the position of rest of a body or its uniform motion in a straight line. 2.CENTER OF RESISTANCE:It is that point through which the resultant of the constraining forces acting upon it may be considered to act 3.CENTER OF ROTATION:It is that point around which a body will rotate or tip. www.indiandentalacademy.com
  6. 6. Mechanical Principles (contd). 4.FORCE RESOLUTION:Forces may be resolved into component vectors ,which in a single plane of space, are at right angles to each other. 5.LINE OF ACTION:It is the direction in which the force acts. www.indiandentalacademy.com
  7. 7. Selection of Headgear: Extrusion of teeth and steepening of O.P-Cervical H.G with outer bow even or low Extrusion of teeth and flatenning of O.P-Cervical H.G with outer bow very high Intrusion of teeth and steepening of O.P-Occipital H.G with outer bow post to C.O.R Intrusion of teeth and flatenning of O.P-Occipital H.G with outer bow ant to C.O.R Distal force and flatenningo of O.P- Combee pull H.G with outerbow above C.R Distal force and steepening of O.P-Combeepull H.G with outer bow below C.R Distal force with no change in O.P-Combeepull H.G with outer bow throu C.R www.indiandentalacademy.com
  8. 8. Duration Of Wear: Non-extraction,full cusp cl-II,good growth increments,forward growth rotation-Full time wear Holding Anchorage-18-20 hrs per day. Precautionary measure- Night use www.indiandentalacademy.com
  9. 9. Newer method of determining H.G force system: Maj.Steven.L.Cureton-1992jco The direction of force of a H.G at the C.O.R of a tooth or group of teeth can be accurately assessed by projecting a profile slide of the patient over a cephalometric tracing. www.indiandentalacademy.com
  10. 10. CONCLUSION: A cooperative patient and a clinician prepared to monitor progress and able to redirect the course of treatment at the right moment may successfully treat a wide range of malocclusions with a single headgear approach. www.indiandentalacademy.com
  11. 11. Thank you www.indiandentalacademy.com Leader in continuing dental education www.indiandentalacademy.com

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