Tip /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
0091-9248678078

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Tip /certified fixed orthodontic courses by Indian dental academy

  1. 1. INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com TIP EDGE CONCEPT DIFFERENTIAL STRAIGHT ARCH TECHNIQUE www.indiandentalacademy.com
  2. 2. Introduction     modified edgewise slot dynamic in action new concept of tooth movement review some of the orthodontic appliances and especially archwire slots that have preceded it www.indiandentalacademy.com
  3. 3. Review of E. H, Angle's Appliance Design   individual tooth control to achieve differing treatment objectives emphasized the importance of permitting teeth to tip freely www.indiandentalacademy.com
  4. 4.     quest for an appliance system that would provide total, three-dimensional tooth control pin and tube appliance (1910) ribbon arch (1915) edgewise appliance (1925) www.indiandentalacademy.com
  5. 5. Changes In treatment goals       relapse often followed expansion necessary to remove teeth P. R. Begg: reverted to ribbon arch brackets Tweed: increased both elastic and archwire forces and used extraoral anchorage similar treatment goals yet using appliances invented by Angle for nonextraction, expansion treatment www.indiandentalacademy.com
  6. 6. Changes in Brackets      wider, siamese brackets preadjusted bracket slots more difficult to accomplish the major repositioning of both the teeth and jaws simple, functional design detrimental to maintain teeth in their final torque and tip inclinations while attempting major repositioning www.indiandentalacademy.com
  7. 7. Fighting The Limitations Of The Edgewise Archwire Slot (A Sixty Year Review)    Uprighting is accomplished. . , through exertion of even, gentle, continuous tipping force in distal direction on their crowns." E-H., Angle-1929: Second order bends "Second order" brackets www.indiandentalacademy.com
  8. 8.   "The edgewise bracket is . . . extremely violent in its action.“: A.V. Sved-1938 Changed edgewise slot sides to pivot points. www.indiandentalacademy.com
  9. 9.    "As soon as this mechanism (edgewise) was brought into use. . . no longer were the molars the only anchor teeth-in fact, each and every tooth is now an anchorage auxiliary”:R.W. Strang-1941 Round archwires Return to occipital anchorage www.indiandentalacademy.com
  10. 10.      ". . . Cuspid tip-back bends are necessary. Their purpose is to break down the… toe hold. . . present in the cuspid regions. They convert stationary anchorage into simple anchorage,.." C.H. Tweed-1941 Anchorage preparation Second order bends. No brackets on selected teeth Headgear www.indiandentalacademy.com
  11. 11.   "II you want to retract cuspids easily . . . stay out of the slot: H.D. Kesling1943 Kept archwire out of slot while retracting with a coil spring. www.indiandentalacademy.com
  12. 12.   "Beware of wide channel brackets." P.R. Begg-1960' Changed to ribbon arch brackets www.indiandentalacademy.com
  13. 13.     "As one attempts to move a tooth by bends or twists in a continuous archwire reactive forces are placed on the adjacent teeth which may produce undesirable side effects”:C.J. Burstone-1962 Segmented arches Transpalatal bars Headgear. www.indiandentalacademy.com
  14. 14.      “. . . early in treatment the (canine) slot angulation . . . can undesirably extrude incisors. To avoid this side effect, the archwire should not engage incisor slots until the canine angulation is correct." L.F. Andrews-1975 Sectional arches. Elastics to "loose" canines Power arms Headgear www.indiandentalacademy.com
  15. 15.   "The greatest deterrent to retraction and/or space closure for the past 60 years has been the edgewise archwire slot.“:P.C. Kesling-1987 Created the Tip Edge bracket. www.indiandentalacademy.com
  16. 16. Development of The TipEdge Bracket     necessary for each tooth to tip freely either mesially or distally but not in both the directions each tooth tips distally--except those distal to extraction sites which tip mesially anterior teeth are free to tip in all directions as they are depressed The face of the edgewise bracket (the slot) has been changed to permit free crown tipping followed by controlled root uprighting www.indiandentalacademy.com
  17. 17. www.indiandentalacademy.com
  18. 18.    slot size: .022 “ x .028" Lateral extensions (wings) vertical slot is .020" x .020" square with both the gingival and incisal ends chamfered www.indiandentalacademy.com
  19. 19. Advantages compared To Original Edgewise Brackets   initial, straight archwires into ordinary edgewise slots in brackets of these teeth cam interfere with retraction, bite opening, patient comfort or cause bond failures Diminished anchorage demands and increased vertical control www.indiandentalacademy.com
  20. 20.   anchor molars are not subjected to forces great enough to initiate their movement until spaces are closed three-dimensional control is not continual, but optional and utilized only when required www.indiandentalacademy.com
  21. 21. Advantages Of Tip-Edge Brackets over Ribbon Arch Type Brackets   in/out compensation built eliminates the need for molar (or other) offsets Horizontally facing archwire slots facilitate initial archwire engagement www.indiandentalacademy.com
  22. 22.   slots can stop free distal crown tipping of canines at a predetermined angle programmed differential mechanics at work www.indiandentalacademy.com
  23. 23. Design and Size of Archwire Slots in Tip-Edge Brackets  "propeller" archwire slot is to permit crown tipping in one direction followed by controlled root uprighting in the other www.indiandentalacademy.com
  24. 24. No need for overangulations     designed to permit initial crown tipping followed by root uprighting with the teeth under complete control light forces (2 ounces) used do not cause undesired rotations during space closure Patient comfort is ensured full vertical and angular control during final uprighting and torquing www.indiandentalacademy.com
  25. 25. Tip-Edge Bracket Archwire Slot Angulations (Slot Size - .022") MAXILLARY Initial, Mesiodistal Crown Tip Final Crown Tip Final Root Torque Central Incisor 20° Distal 5° 12° Lateral Incisor 20° Distal 9° 8° Canine 25° Distal 11" -4° First Premolar 20° Distal Or Mesial 0° -7° Second Premolar 20° Distal Or Mesial 0° -7° www.indiandentalacademy.com
  26. 26. MANDIBULAR Initial, Mesiodistal Crown Tip Final Crown Tip Final Root Torque Central Incisor 20° Distal 2° -1° Lateral incisor 20° Distal 5° -1° Canine 25° Distal 5° -11° First Premolar 20° Distal Or Mesial 0" -20° Second Premolar 20° Distal Or Mesial 0° -20° www.indiandentalacademy.com
  27. 27.    Slot design is the same for each tooth in all types and classes of malocclusions The only choice to be made is the direction of free crown tipping of premolars major Class II or III apical base discrepancies www.indiandentalacademy.com
  28. 28. THE DIFFERENTIAL STRAIGHT-ARCH TECHNIQUE www.indiandentalacademy.com
  29. 29. Differential Tooth Movement     anatomically correct positions in the jaws under the influence of very light forces light intraoral forces do not place undue strain on the anchor molars maximum control of the vertical dimension based on a technique and method of tooth move-ment developed by Dr. P.R. Begg www.indiandentalacademy.com
  30. 30.     attritional occlusion :occlusion is not static, but ever changing movement of teeth is not segmented into groups, with one group waiting for another overcorrection of the teeth to allow for the natural tendency for relapse appliances themselves do not have adequate time to function as retainers www.indiandentalacademy.com
  31. 31. Thank you For more details please visit www.indiandentalacademy.com www.indiandentalacademy.com

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