Precision attachments/ orthodontic seminars

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Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.

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Precision attachments/ orthodontic seminars

  1. 1. Precision attachments introduction INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy. com
  2. 2. Defination: • This is said to be a connecting link between the fixed and removable type of partial dentures as it incorporates features common to both types of construction. • STEIGER &BOITEL: they mean to be of bodily function for a removable partial denture or bridge. www.indiandentalacademy. com
  3. 3. Nomenclature: • A retainer consisting of a metal receptacle (matrix) and a closely fitting part (patrix). • The matrix is usually contained within the normal / expanded contours of the crown on the abutment tooth. • The patrix is attached to a pontic / the removable partial denture frame work.- glossary of prosthodontic terms. www.indiandentalacademy. com
  4. 4. www.indiandentalacademy. com
  5. 5. SYNONYM : • INTERNAL ATTACHMENT • PARALLEL ATTACHMENT • FRICTIONAL ATTACHMENT • KEY AND KEY WAY ATTACHMENT • SLOTTED ATTACHMENT www.indiandentalacademy. com
  6. 6. PRECISION ATTACHMENTS • IMPLIES A PARTLY or fully machined device consisting of a male and a female components which are used in restorative dentistry to retain a removable /semi removable prosthesis . –D.H. roberts . • Acc. To G.E.ray ,they are wholly or partially machined accessories used to retain a removable /semi removable prosthesis. www.indiandentalacademy. com
  7. 7. INTRA CORONAL ATTACHMENTS • The bulk of the soldered or cast on portion of the joint lies within the anatomical contours of the treated teeth. www.indiandentalacademy. com
  8. 8. EXTRA CORONAL ATTACHMENTS • Are used to join a prosthesis to a retainer , part of all of their mechanisms is outside the contour of the retainer . www.indiandentalacademy. com
  9. 9. Chayes attachment www.indiandentalacademy. com
  10. 10. HISTORY • GEORGE EVANS -1888 • PEESO -1898 • GILMORE -1913 • FOSSUME -1906 • BENNET -1904 • BROWN , BRYONT, CONDIT,GOLOBIN ,KELLY , McCOLLUM ,MORGAN , ROACH ,SORENSEN ,SUPPLEE . www.indiandentalacademy. com
  11. 11. RATIONALE www.indiandentalacademy. com
  12. 12. RATIONALE • To be removable and replaceable without stress or strain on abutment teeth . • To permit normal anatomic contour to the abutment teeth . • To provide many years of comfortable service . • To be made of materials that are compatible with oral tissues . • Resistance to abrasion • Resistance to corrosion • To be esthetically acceptable • To require minimal amount of tooth structure to be removed • To be hygenically clean . www.indiandentalacademy. com
  13. 13. INDICATIONS • Movable joints in fixed movable bridge work . • To stress break , free- end saddles and bridges . • Intra coronal attachments are effective retainers for removable partial dentures . • As a connector for sectional dentures . • Sections of a F.P.D may be connected with intra coronal attachments • To lock a connector joining a saddle in the opposite side of the arch • to retain hybrid dentures www.indiandentalacademy. com
  14. 14. CONTRA INDICATIONS • SICK AND SENILE PATIENTS- whose manual skills are diminished. • Periodontosis. • Abnormal caries rate • Inadequate space to employ them / place them . www.indiandentalacademy. com
  15. 15. ADVANTAGES • The labial or buccal clasp arms can be eliminated • Precision attachments are less stressful to the abutment teeth than a conventional clasp arm . www.indiandentalacademy. com
  16. 16. DISADVANTAGES • TOOTH may have to be extensively cut to place the P.A . • The bulge in the crown , created by the intra coronal attachment may deprive the underlying gingival tissue of its customary massage . • The attachment is subject to wear as a result of friction between metal parts .- causing movement & injury to the abutment teeth . • The extra coronal attachment can cause irritation / inflamation . www.indiandentalacademy. com
  17. 17. LIMITATIONS • The clinical crown of the abutment tooth should be of adequate length • Size of the pulp tissue . • Fabrication of the P.A is technique sensitive . • It is expensive . www.indiandentalacademy. com
  18. 18. MECHANISIM OF ACTION • FRICTION – ACTIVE RETENSION CAN BE ENHANCED BY – spring ,leaf ,ring ,bolts ,rubber devices. • BINDING • WEDGING of conical bodies • INTERNAL SPRING • ACTIVE RETENSION www.indiandentalacademy. com
  19. 19. MATERIALS USED FOR MAKING THE P. A . • CERAMICOR • ELITOR • OSV • PIVITOR • STAINLESS STEEL • SILVER • LO-CAST • THERMAFIT • 20% IRIDIUM-PLATINUM • CERMACAST • PLATINUM GOLD , etc . www.indiandentalacademy. com
  20. 20. CLASSIFICATION Good kind &baker -1975 Intra coronal Extra coronal resilient Non resilient resilient Non resilient www.indiandentalacademy. com
  21. 21. Classification-2 PRECISION ATTACHMENTS Pre fabricated Semi precision Eg; Channel-shoulder-pin attachment Plastic Eg; Renefert’s unirestB , mortice rest www.indiandentalacademy. com
  22. 22. CLASSIFICATION -3 ACC . TO G.E.Ray Rigid articulatios Movable articulations Group-1 (vital teeth) Group-2 (non vital teeth) Group-1 –vital teeth Group-2 – non vital teeth www.indiandentalacademy. com
  23. 23. G.E.RAY – CLASSIFIED P. A - • INTRA CORONAL • EXTRA CORONAL –FLECHER , HUSER . • CONJUNCTORS –CUENOD , DALLA BONA , CRISMANI • ANCHORS – GMUR SLIDE BLOCK ,DALLABONA SLIDE BLOCK /DALBO STUD ANCHOR • BARS-DOLDER-BAR • ACCESSORY COMPONENTS –TRANSVERSE STABILIZERS,LOCKS,STRESS BREAKER. www.indiandentalacademy. com
  24. 24. Harold . W. preiskel classified as P.A Intra coronal attachments Frictional – Entirely frictional Mechanical lock Cross section – H-shaped T – shaped circular www.indiandentalacademy. com
  25. 25. R . VALENTINE & EASTMAN DENTAL HOSPITAL - LONDON CLASSIFIED AS : RIGID RETAINERS MOVABLE RETAINERS AUXILLARY DEVICES RIGID ATTACHMENTS( NON VITAL TEETH) ADJUSTABLE – CHAYES,MC COLLOM ,STREN , CRISMANI NON ADJUSTABLE – BEYELER , C&M-643 RIGID ATTACHMENTS (VITAL TEETH) ALL ADJUSTABLE –ECCENTRIC BONA ,GERBER MOVABLE ATTACHMENTS (NONVITAL) DALBO ,CRISMANI STRESS BREAKERS (PARTIAL DENTURES GERBER HINGE , ANCORVIS HINGE MOVABLE ANCHORAGES (NON VITAL ) BONA DOLDER BAR , ANDREWS BAR . ACTIVATORS - ISOCLIP LATCHES , BOLTS , SCREWS SCHUBIGER , HRUSKA www.indiandentalacademy. com
  26. 26. www.indiandentalacademy. com
  27. 27. www.indiandentalacademy. com
  28. 28. www.indiandentalacademy. com
  29. 29. www.indiandentalacademy. com
  30. 30. www.indiandentalacademy. com
  31. 31. Spherical resilience anchors www.indiandentalacademy. com
  32. 32. 15.41 – Dr.Dalla bona design – root canal anchor system www.indiandentalacademy. com
  33. 33. 15.42 – Prof.Dr. brunner design www.indiandentalacademy. com
  34. 34. www.indiandentalacademy. com
  35. 35. www.indiandentalacademy. com
  36. 36. www.indiandentalacademy. com
  37. 37. www.indiandentalacademy. com
  38. 38. www.indiandentalacademy. com
  39. 39. www.indiandentalacademy. com
  40. 40. Cylindrical snap grip anchors. www.indiandentalacademy. com
  41. 41. anchors www.indiandentalacademy. com
  42. 42. www.indiandentalacademy. com
  43. 43. Intra coronal , screwed slide attachment www.indiandentalacademy. com
  44. 44. Anchors – mandibular arch. www.indiandentalacademy. com
  45. 45. Slide attachment www.indiandentalacademy. com
  46. 46. Slide attachment www.indiandentalacademy. com
  47. 47. Combi – snap –intra coronal attachment www.indiandentalacademy. com
  48. 48. www.indiandentalacademy. com
  49. 49. www.indiandentalacademy. com
  50. 50. Shoulder – dalbo joint with over load protection www.indiandentalacademy. com
  51. 51. Shoulder Dalbo – bilateral. www.indiandentalacademy. com
  52. 52. Prospective planning in a bilateral free end saddle www.indiandentalacademy. com
  53. 53. Rest position – dalbo attachment www.indiandentalacademy. com
  54. 54. Physiological translation www.indiandentalacademy. com
  55. 55. Translation and hinge movement www.indiandentalacademy. com
  56. 56. Articulated unilateral free end saddle www.indiandentalacademy. com
  57. 57. Articulated uni lateral free end saddle - mandibular www.indiandentalacademy. com
  58. 58. Pt – snap-intra coronal www.indiandentalacademy. com
  59. 59. www.indiandentalacademy. com
  60. 60. www.indiandentalacademy. com
  61. 61. www.indiandentalacademy. com
  62. 62. www.indiandentalacademy. com
  63. 63. www.indiandentalacademy. com
  64. 64. www.indiandentalacademy. com
  65. 65. www.indiandentalacademy. com
  66. 66. www.indiandentalacademy. com
  67. 67. www.indiandentalacademy. com
  68. 68. www.indiandentalacademy. com
  69. 69. www.indiandentalacademy. com
  70. 70. www.indiandentalacademy. com
  71. 71. www.indiandentalacademy. com
  72. 72. Slide attachments – CM interlock &CM plasta www.indiandentalacademy. com
  73. 73. Slide attachments www.indiandentalacademy. com
  74. 74. Prof.Beyeler – slide attachment www.indiandentalacademy. com
  75. 75. Slide attachment – cm interlock & G. crismani www.indiandentalacademy. com
  76. 76. Slide attachments www.indiandentalacademy. com
  77. 77. Snap attachments www.indiandentalacademy. com
  78. 78. Snap attachments www.indiandentalacademy. com
  79. 79. w. Wermuth - bioloc www.indiandentalacademy. com
  80. 80. Dr.spang - stabilex www.indiandentalacademy. com
  81. 81. Dr spang mini - conex www.indiandentalacademy. com
  82. 82. Dr.spang mini conex www.indiandentalacademy. com
  83. 83. s. Guglielmetti www.indiandentalacademy. com
  84. 84. Slide attachments www.indiandentalacademy. com
  85. 85. Anchors www.indiandentalacademy. com
  86. 86. Anchors www.indiandentalacademy. com
  87. 87. Anchors www.indiandentalacademy. com
  88. 88. Anchors – Dr.Hruska www.indiandentalacademy. com
  89. 89. Resilience anchors www.indiandentalacademy. com
  90. 90. Resilience anchors www.indiandentalacademy. com
  91. 91. Bar attachments www.indiandentalacademy. com
  92. 92. Bar attachments www.indiandentalacademy. com
  93. 93. Resilience attachments www.indiandentalacademy. com
  94. 94. Resilience attachments www.indiandentalacademy. com
  95. 95. Resilience joints -Roach www.indiandentalacademy. com
  96. 96. Coupled resilience joint www.indiandentalacademy. com
  97. 97. Hinges www.indiandentalacademy. com
  98. 98. Hinge www.indiandentalacademy. com
  99. 99. Stabilizer www.indiandentalacademy. com
  100. 100. Transversal locks www.indiandentalacademy. com
  101. 101. Transversal lock www.indiandentalacademy. com
  102. 102. Latches www.indiandentalacademy. com
  103. 103. Screws , miscellaneous www.indiandentalacademy. com
  104. 104. PLACEMENT OF PRECISION ATTACHMENTS TECHNIQUE DIRECT METHOD INDIRECT METHOD www.indiandentalacademy. com
  105. 105. www.indiandentalacademy. com

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