Implants in orthodontics /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
00919248678078

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Implants in orthodontics /certified fixed orthodontic courses by Indian dental academy

  1. 1. IMPLANTS IN ORTHODONTICS www.indiandentalacademy.com
  2. 2. INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
  3. 3.  Introduction  Classification of Implants  Material used for Implants  Osseointegration  Use of Implants in Orthodontics www.indiandentalacademy.com
  4. 4.  Linkow- Father of oral Implantology.  Implants are defined as alloplastic devices which are surgically inserted into or onto the jaw bone-Boucher. www.indiandentalacademy.com
  5. 5. Classification of Implants. Based on their location: Subperiosteal  Transosseous  Endosseous www.indiandentalacademy.com
  6. 6. Classification of Implants  According to their body geometry:- -Threaded or Non threaded -Porous or non porous www.indiandentalacademy.com
  7. 7. Materials used for Implants  In 16 &17th century –Ivory dental implants .  20th century-Metal Implant devices.  1940 &1960’s-CoCrMo subperiosteal & titanium blade implants. www.indiandentalacademy.com
  8. 8.  1970’s-Non metal biomaterials  1982-Branemark Implant. www.indiandentalacademy.com
  9. 9.  Stainless steel:-18% Cr & 8% Ni -surface passivation is required -subjected to crevice & pitting corrosion.  Cobalt-Chromium-Molybdenum Alloy :-used in fabrication of custom designs such as subperiosteal frames. www.indiandentalacademy.com
  10. 10.  Titanium:-exist in 3 forms -Alpha -Beta -Alpha-Beta phase (most commonly used). Ti-6Al-4V  Modulus of elasticity is equal to bone. www.indiandentalacademy.com
  11. 11.  Titanium:“Passivity”. • Metal with surface coatings Hydroxyapatite Tricalcium phosphate. www.indiandentalacademy.com
  12. 12.  Ceramics:Bioglass-contain oxides of Ca, Na, Si.  Polymers & Composites.  Other Implant Materials like Gold, Palladium, Tantalum, Platinum, Zirconium. www.indiandentalacademy.com
  13. 13. OSSEOINTEGRATION.  Term & concept of Osseointegration -Branemark. “An intimate structural contact at the implant surface and adjacent vital bone devoid of any intervening fibrous tissue.” www.indiandentalacademy.com
  14. 14. Evolution of the concept of osseointegration  Vital microscopic studies of the rabbit fibulatitanium chambered microscopes.  Series of experiments:-Titanium fixtures for immobilization of autologous bone grafts. - Tooth implants studies for healing & anchorage stability. www.indiandentalacademy.com
  15. 15.  Study done on dogs to find out the load bearing capacity of implants. Optical titanium chambers were implanted in humans-to assess the tissue reactions of titanium implants. www.indiandentalacademy.com
  16. 16. Biology of osseointegration. Hematoma Callus formation www.indiandentalacademy.com
  17. 17. Bone remodeling Fibrous tissue www.indiandentalacademy.com
  18. 18. Principles of osseointegration Factors important for reliable bone anchorage of an Implanted device. Implant biocompatibility:- www.indiandentalacademy.com
  19. 19. Principles of osseointegration.  Implant Design:- www.indiandentalacademy.com
  20. 20.  Implant surface:- www.indiandentalacademy.com
  21. 21.  State of the host bed:- www.indiandentalacademy.com
  22. 22.  Surgical technique:- www.indiandentalacademy.com
  23. 23.  Loading condition:- www.indiandentalacademy.com
  24. 24. Use of Implants in Orthodontics  Growth Studies.  Anchorage Orthodontic Orthopaedic -Maxillary protraction -Maxillary expansion -Space closure -Intrusion -Molar distalization www.indiandentalacademy.com
  25. 25. Growth Studies: Implants are the best means of reference points for studying the longitudinal growth studies. www.indiandentalacademy.com
  26. 26.  Growth Rotations -Bjork & skeiller .  Growth of Cleft lip & palate patients - Shaw . www.indiandentalacademy.com
  27. 27. ANCHORAGE: Orthopeadic correction- Two methods for obtaining the Skeletal anchorage: Intentionally Ankylosed teeth.  Endosseous Implants. www.indiandentalacademy.com
  28. 28.  Maxillary Expansion:- - Guyman(1980) www.indiandentalacademy.com
  29. 29. www.indiandentalacademy.com
  30. 30. Linkow-pioneer in the use of Implants in Orthodontics.  Pt’s with one or more missing teeth.  Loss of teeth during the course of orthodontic treatment.  Pt’s with CL-II malocclusion & missing lower posterior teeth.  Periodontally compromised teeth. www.indiandentalacademy.com
  31. 31. Anchorage for orthodontic purpose. Skeletal Anchorage :Creekmoore(1983) -Vitallium bone screw placed below the anterior nasal spine is used for intrusion of Upper anteriors. -6mm of upper incisor intrusion was seen after one year. www.indiandentalacademy.com
  32. 32. Endosseous Implants for maxillary protraction -Smalley etal (1988) • A traction force of 600gm is used and protraction was done till 8mm of anterior displacement of maxillary complex occurred. www.indiandentalacademy.com
  33. 33. Use of Endosseous Implant for closure of extraction site -Eugene Roberts (1989)  Endosseous Implants placed in the retromolar region are used to close the atrophic extraction site. www.indiandentalacademy.com
  34. 34. www.indiandentalacademy.com
  35. 35. Impacted Titanium Post for Anchorage -Frederic Bousquet etal(1996) www.indiandentalacademy.com
  36. 36. www.indiandentalacademy.com
  37. 37. www.indiandentalacademy.com
  38. 38. Mini-Implant for Orthodontic Anchorage:-Ryuzo Kanomi(1997)  Mini-Implant is 1.2mm in diameter and 6mm in length. www.indiandentalacademy.com
  39. 39. www.indiandentalacademy.com
  40. 40. www.indiandentalacademy.com
  41. 41. Mini-Implants for space closure. www.indiandentalacademy.com
  42. 42. Mini-Implants for molar intrusion www.indiandentalacademy.com
  43. 43. Skeletal Anchorage system for Open bite correction -Umemori , Sugawara etal (1999) • Control of vertical dimension is very important in correction of anterior open bite •‘L’ shaped titanium miniplates are used as a Source of anchorage for intruding the molars. www.indiandentalacademy.com
  44. 44.  Procedure for miniplate insertion:- www.indiandentalacademy.com
  45. 45. www.indiandentalacademy.com
  46. 46. Onplant & Ortho-Implant.  Onplant:-Block &Hoffman.  It is a flat disk shaped fixture available in 8 and 10mm in diameter  It has a HA coated surface for integration with the surrounding bone. www.indiandentalacademy.com
  47. 47. www.indiandentalacademy.com
  48. 48. Ortho-Implant - Celenza & Hochman •Similar to onplant but it is an endosseous Implant. •Its surface is sandblasted and etched to increase the adhesion to the surrounding bone www.indiandentalacademy.com
  49. 49. www.indiandentalacademy.com
  50. 50. Micro Implant  Dimension of micro implant are 1.2mm in diameter & 6mm in length. www.indiandentalacademy.com
  51. 51. www.indiandentalacademy.com
  52. 52. Micro-Implant for anchorage in Lingual orthodontics www.indiandentalacademy.com
  53. 53. www.indiandentalacademy.com
  54. 54. www.indiandentalacademy.com
  55. 55. www.indiandentalacademy.com
  56. 56. MAGNETS IN ORTHODONTICS www.indiandentalacademy.com
  57. 57.  Introduction  Types of magnetic materials  Properties of magnets  Application of magnets in orthodontics. www.indiandentalacademy.com
  58. 58.  In 1953, magnets were first used for denture retention by BEHRAN & EGAN.  Use of magnets in orthodontic- BLECHMAN & SMILEY. www.indiandentalacademy.com
  59. 59. PROPERTIES OF MAGNETS  Flux Density www.indiandentalacademy.com
  60. 60.  In dentistry, ferromagnetic materials with static field are used.  Magnetocrystalline Anisotropy.  Coercivity. www.indiandentalacademy.com
  61. 61.  Coulombs law:-This law states that force between two magnetic poles is directly proportional to magnitude & inversely proportional to square of the distance between them.  Curie point:-Pierre Curie(1859-1906) www.indiandentalacademy.com
  62. 62.  High force to volume ratio.  Maximal force at shorter distances. www.indiandentalacademy.com
  63. 63.  No interruption of magnetic force lines by intermediate media.  No friction in attractive force configuration.  No energy loss. www.indiandentalacademy.com
  64. 64. TYPES OF MAGNETIC MATERIALS       Platinum-cobalt(Pt-co) Aluminium-Nickel-Cobalt(Al-Ni-Co) Ferrite Chromium-cobalt-Iron Samarium Cobalt(SmCo) Neodymium-Iron-Boron(Nd2Fe B) 14 www.indiandentalacademy.com
  65. 65.  SAMARIUM-COBALT (SmCo5&Sm2Co17) MAGNETS:- -high resistance to demagnetization. -corrosion resistance. www.indiandentalacademy.com
  66. 66.  Advantages:-Continuous force is exerted. - Eliminates the patient co-operation. -No friction.  Disadvantages:-Tarnish &corrosion products are cytotoxic. -Cost factor www.indiandentalacademy.com
  67. 67.  Biological effect of magnetic forces:- Aronson:-thinning of epithelium under attracting & repelling magnets. McDonald - proliferative activity of fibroblasts in presence of static magnetic field Lars Bondemark & Kurol studied changes in human dental pulp and gingival tissue. www.indiandentalacademy.com
  68. 68. APPLICATIONS OF MAGNETIC APPLIANCES 1. 2. 3. 4. 5. 6. Tooth intrusion Expansion Tooth Impaction Space closure Molar distalization Magnetic Edgewise brackets 7. 8. Functional Appliances. Retainers. www.indiandentalacademy.com
  69. 69.  Tooth Intrusion:Active Vertical Corrector-Dellinger(1986) -Samarium cobalt magnets in the repelling mode are used. www.indiandentalacademy.com
  70. 70.  Fixed Magnetic Appliance:-introduced by VARUN KALRA & CHARLES BURSTONE. Appliance consists of an upper &lower acrylic splints with samarium cobalt magnets in stainless steel casting embedded in a repelling mode. www.indiandentalacademy.com
  71. 71.  EXPANSION:-Vardimon et al(1987) demonstrated palatal expansion using two types of magnetic devices in Macaca fascicularis monkeys. -Tooth borne appliance www.indiandentalacademy.com
  72. 72.  Tissue borne appliance (attached directly to palate by endosseous pins). www.indiandentalacademy.com
  73. 73.  Tooth Impaction:- Vardimon,Graber,Drescher -Neodymium Iron Boron magnets can be used to assist eruption of an impacted canine.  Mancini(1996)-force levels are sufficient enough to induce the cellular &biochemical changes are required to produce orthodontic tooth movement. www.indiandentalacademy.com
  74. 74. space closure -simple tooth movement without archwires :-Muller(1984) -Complex Intra &Interarch Mechanics:-Blechman(1985) CL-II mechanics with a magnetic force system in a CL-I extraction case www.indiandentalacademy.com
  75. 75. 3 magnet configuration to enhance CL-II mechanics 3 magnet configuration used to simultaneously move all 4 canines distally www.indiandentalacademy.com
  76. 76. CL-II mechanics using magnetic force system in CL-II extraction case. Repulsive CL-II mechanics in CL-II Nonextraction cases. www.indiandentalacademy.com
  77. 77.  Molar Distalization. -Gianelly et al(1989):-repelling magnets in conjuntion with a modified Nance appliance was used. -Bondemark & Kurol:-repelling samarium cobalt magnets were used for distalization. www.indiandentalacademy.com
  78. 78.  Magnetic Edgewise Brackets:-Kawata(1987) -Samarium cobalt magnet with an edgewise bracket (o.018slot) . www.indiandentalacademy.com
  79. 79.  Functional Orthopaedic Magnetic Appliances:Vardimon(1989) -for correction of CL-II&CL-III malocclusion. www.indiandentalacademy.com
  80. 80. www.indiandentalacademy.com
  81. 81. www.indiandentalacademy.com
  82. 82. www.indiandentalacademy.com
  83. 83.  Magnetic Twin Block:Clark(1996) -Samarium cobalt magnets were embedded in the inclined surface of the twin block in attractive mode. www.indiandentalacademy.com
  84. 84.  Magnetic Activator Device(MAD):-Darendilier (1993) developed this magnetically active functional appliance. MAD I-mandibular deviations MAD II-CLII malocclusion MADIII-CLIII malocclusion MADIV-skeletal open bite correction. MAD-II www.indiandentalacademy.com
  85. 85. MAD-II FOR CORRECTION OF CL-II,DIVISION 1 MALOCCLUSION. Deep Bite open Bite www.indiandentalacademy.com
  86. 86.  MAD III www.indiandentalacademy.com
  87. 87. www.indiandentalacademy.com
  88. 88.  MAD - IV www.indiandentalacademy.com
  89. 89. MAD IV(a) MAD IV( b) MAD IV( c) www.indiandentalacademy.com
  90. 90.  Treatment of CL-II bimax with magnetsDarendelier&Joho(199 2) -Autonomous fixed magnetic appliance. www.indiandentalacademy.com
  91. 91. www.indiandentalacademy.com
  92. 92. www.indiandentalacademy.com
  93. 93.  Propellant Unilateral Magnetic Appliance (PUMA) - Chate(1995) Magnets are use to stimulate costo-chondral bone graft in Hemi facial microsomia. www.indiandentalacademy.com
  94. 94.  Retainers:-Springate & Sandler(1991) -micro magnets made of neodymium iron boron magnets as a fixed retainer in a patient with persistent diastema. www.indiandentalacademy.com
  95. 95.  Bibiliography:- -Dentofacial Orthopedics with functional appliances-T.M Graber, Rakosi,Petrovic. - www.indiandentalacademy.com
  96. 96. Thank you www.indiandentalacademy.com Leader in continuing dental education www.indiandentalacademy.com

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