orthodontic Clasps /certified fixed orthodontic courses by Indian dental academy

1,468 views

Published on

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

0 Comments
7 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
1,468
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
17
Comments
0
Likes
7
Embeds 0
No embeds

No notes for slide

orthodontic Clasps /certified fixed orthodontic courses by Indian dental academy

  1. 1. CLASPS INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
  2. 2.  Clasps are the retentive components of the orthodontic appliances. INTRODUCTION The unit of removable orthodontic appliance that holds the appliance in position and is called clasp. www.indiandentalacademy.com
  3. 3. There are many types of clasps. 1.’ C ’ clasp 2.Full clasp or Jackson’s clasp 3.Triangular clasp 4.Adam’s clasp and their modifications 5.Schwarz clasp 6.South end clasp 7.Duyzing clasp 8.Ball end clasp 9.Crozat clasp www.indiandentalacademy.com
  4. 4. IDEAL REQUIREMENTS • Unobtrusive. • Not impinge. • Close contact to the tooth. • Usable in both deciduous and permanent dentition. • Adequate retention. www.indiandentalacademy.com
  5. 5. • No active force on the anchor tooth. • Rigid • Easy to fabricate and also replace if needed. • Not interfere in the growth of jaws and eruption of teeth. www.indiandentalacademy.com
  6. 6. USES To secure the appliance in position To prevent rolling of appliances To resist forces of displacement To provide retention & anchorage For engaging elastics www.indiandentalacademy.com
  7. 7. MODE OF ACTION OF CLASPS Clasp engage onto the undercuts (constricted areas on the teeth.) Two types of undercuts. Buccal / Lingual Cervical undercuts. Mesial / Distal Proximal undercuts. www.indiandentalacademy.com
  8. 8. CIRCUMFERENTIAL CLASP www.indiandentalacademy.com
  9. 9.  Circumferential clasp / C-Clasp / 3/4th Clasp.  It uses the bucco-cervical undercut.  Single retention arm.  1mm wire used in molars. www.indiandentalacademy.com
  10. 10. www.indiandentalacademy.com
  11. 11. Advantages  Good retention.  Easy to fabricate.  Single occlusal crossover wire.  Easy to replace. www.indiandentalacademy.com
  12. 12. Disadvantages  Not on semi-erupted tooth.  Decalcification of cervical margin.  Gingival irritation.  Plaque accumulation enhanced.  Easily distort. www.indiandentalacademy.com
  13. 13. JACKSONS CLASP www.indiandentalacademy.com
  14. 14.  Jackson 1906  Jacksons Clasp / Full Clasp / U Clasp.  Both bucco-cervical and proximal undercuts. www.indiandentalacademy.com
  15. 15. www.indiandentalacademy.com
  16. 16. Advantages  Simple design  Adequate retention. www.indiandentalacademy.com
  17. 17. Disadvantages  Not useful in partially erupted teeth.  Difficult to adjust.  Not on unfavorably inclined tooth. www.indiandentalacademy.com
  18. 18. SOUTHEND CLASP www.indiandentalacademy.com
  19. 19.  Most common for anterior anchorage.  Single arrowhead between Central Incisors with wire following the gingival margin. www.indiandentalacademy.com
  20. 20. TRIANGULAR CLASP www.indiandentalacademy.com
  21. 21.  Excellent retention by the single arrowhead in the interproximal area.  Free end towards distal to facilitate the engagement of elastics. www.indiandentalacademy.com
  22. 22. www.indiandentalacademy.com
  23. 23. Advantages  Easy to fabricate.  Excellent retention.  Pre fabricated available.  Elastics can be engaged. www.indiandentalacademy.com
  24. 24. Disadvantages  Not useful if adjacent tooth is absent.  Used as secondary / additional retention. www.indiandentalacademy.com
  25. 25. BALL END CLASP www.indiandentalacademy.com
  26. 26.  Action and location similar to triangular clasp.  Pre fabricated available. Can be made by adding solder to end of a wire. www.indiandentalacademy.com
  27. 27. www.indiandentalacademy.com
  28. 28. Advantages  Easy to fabricate.  Single occlusal interference.  Less gingival irritation.  Easy to replace. www.indiandentalacademy.com
  29. 29. Disadvantages  Short arm makes adjustment difficult.  Cannot be used for primary retention.  Cannot be used in absence of adjacent tooth. www.indiandentalacademy.com
  30. 30. SCHWARZ CLASP www.indiandentalacademy.com
  31. 31.  Also called as ARROWHEAD CLASP.  Mesial and distal undercuts of the teeth. www.indiandentalacademy.com
  32. 32. www.indiandentalacademy.com
  33. 33. Advantages  Reliable retention.  Does not interfere in posterior occlusion.  More length of wire hence more flexible.  More easy to adjust.  Enhances eruption. www.indiandentalacademy.com
  34. 34. Disadvantages  Difficult to fabricate.  Needs special plier.  Irritates soft tissue.  Tends to separate teeth.  Is bulky hence less patient compliance. www.indiandentalacademy.com
  35. 35. CROZAT CLASP www.indiandentalacademy.com
  36. 36.  Along with the u clasp another curved wire is soldered on the base.  Strong retention is possible www.indiandentalacademy.com
  37. 37. ADAMS CLASP www.indiandentalacademy.com
  38. 38.  Adams clasp / modified arrowhead clasp / liverpool clasp / universal clasp.  C. PHILIPS ADAMS in May 1950.  Most widely used clasp.  Distobuccal and mesiobuccal undercuts.  Does not separate teeth like a arrowhead clasp.  0.7mm posteriors 0.6mm anteriors. www.indiandentalacademy.com
  39. 39. Parts BRIDGE 2 ARROWHEADS 2 TAG ARMS www.indiandentalacademy.com
  40. 40. BRIDGE  Is 2/3rd the mesio-distal width of the tooth, or slightly less then the distance between mesiobuccal and distobuccal undercuts, or length should be equal to the intercuspal distance.  Is 1-2mm away from the buccal surface of the tooth.  Is at 45o to the buccal surface of the tooth.  Should be straight. www.indiandentalacademy.com
  41. 41. Arrowheads  They should lie in the disto and mesio buccal undercuts.  Shaped according to the curve of the gum margins into the interdental papilla.  Long enough to keep the bridge at a proper distance.  Should not touch the adjacent teeth www.indiandentalacademy.com
  42. 42. Tag arms  Closely fitted to the contact points, down to the interdental embrassure.  Space between the tag arms and palate for flow of acrylic.  No sharp bends. www.indiandentalacademy.com
  43. 43. Advantages  Small,neat and unobtrusive.  Any tooth.  Both deciduous and permanent dentition.  Even on semi erupted tooth.  No specialized pliers required.  Can be modified as needed.  No. of modifications are available. www.indiandentalacademy.com
  44. 44. Disadvantages  Unwanted palatal tipping if gets activated.  May lead to elongation of tooth if is fitting tightly.  Can be repaired only if fractured through the arrowheads.  Cannot be given on proclined anteriors. www.indiandentalacademy.com
  45. 45. Fabrication www.indiandentalacademy.com
  46. 46. MODIFICATIONS OF ADAMS CLASP www.indiandentalacademy.com
  47. 47. Anterior Adams  0.6mm  Also called double clasp. www.indiandentalacademy.com
  48. 48. With distal extension/ traction hook  To engage elastics  Not given if sulcus is shallow. Distal extension www.indiandentalacademy.com
  49. 49. With a soldered hook www.indiandentalacademy.com
  50. 50. With a soldered tube www.indiandentalacademy.com
  51. 51. With a single arrowhead www.indiandentalacademy.com
  52. 52. With accessory arrowhead www.indiandentalacademy.com
  53. 53. For more details please visit www.indiandentalacademy.com www.indiandentalacademy.com

×