Composite resin /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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  • Indian Dental Academy Now offers comprehensive online Orthodontics course Course includes: 1.whiteboard lecture presentations 2.Case Discussions 3.with hundreds of pictures. 4.Demo on Models 5.Demo on Patients 6. subtitles in your own language 12 months unlimited access and support @ 350 USD only. For Demo please visit :www.idalectures.com/preview/ For more details visit: www.idalectures.com Please contact us for any clarifications: idalectures@gmail.com indiandentalacademy@gmail.com Thanks & Regards Indian Dental Academy
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  • Very usful dentistry presentaton
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Composite resin /certified fixed orthodontic courses by Indian dental academy

  1. 1. COMPOSITE RESINS INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
  2. 2. Contents Definitions  Other terminologies  Composition  Classification  Properties  Advantages and disadvantages  Indications and contraindications  Placement of composites  Latest advances in composites  www.indiandentalacademy.com
  3. 3.  Definitions  Other terminologies – Composite resins – Filled composites – Composite restorative material – Filled resins – Resin composite www.indiandentalacademy.com
  4. 4. Composition www.indiandentalacademy.com
  5. 5.  Initiator system  Inhibitors  Optical modifiers  Color pigments  U v stabilisers www.indiandentalacademy.com
  6. 6. Resin matrix  BISGMA –Bis phenol A-Glycidyl methacrylate.  UDMA – urethane Dimethocrylate.  TEGDMA-Triethyelene glycol dimethacrylate  HEMA-Hydroxy ethyl methacrylate www.indiandentalacademy.com
  7. 7. Filler particles  Benefits of fillers  Factors determining the properties and clinical application of composites www.indiandentalacademy.com
  8. 8. Types of fillers  Ground Quartz  Colloidal Silica  Glass or ceramic containing heavy metals www.indiandentalacademy.com
  9. 9. Other fillers : Tricalcium phosphate, Zirconium dioxide, Fillers containing fluoride www.indiandentalacademy.com
  10. 10. Coupling agents 1. Organo-Silane (r-methacryloxy propyl trimethoxysilane) 2. Titanates. 3. Zirconates. www.indiandentalacademy.com
  11. 11. Activator initiator system  Chemically activated resins  Light activated resins  Dual cure  Staged curing www.indiandentalacademy.com
  12. 12. Light activated resins U v light  Visible light – Advantages – Draw backs  Curing lamps – LED Lamps – QTH Lamps – PAC Lamps – Argon laser lamps www.indiandentalacademy.com
  13. 13. QTH PLASMA ARC ARGON ION LASER www.indiandentalacademy.com LED
  14. 14. SOFT START POLYMERIZATION MIYAZAKI and colleagues demonstrated that composite exhibited improved physical properties when cured with slow polymerization vs.higher intensity and faster polymerization. Since then, studies have reported improved marginal adaptation and physical properties of resin-based composite using this technique, aptly named “soft-start "polymerization… www.indiandentalacademy.com
  15. 15. PLACEMENT TECHNIQUES TO REDUCE POLYMERIZATION SHRINKAGE…  Three site novel matrix technique.  Oblique-layering technique.  Successive cusp buildup technique. www.indiandentalacademy.com
  16. 16. THREE SITE NOVEL MATRIX TECHNIQUE… www.indiandentalacademy.com
  17. 17. OBLIQUE LAYERING TECHNIQUE… www.indiandentalacademy.com
  18. 18. SUCCESSIVE CUSP BUILD UP TECHNIQUE.. www.indiandentalacademy.com
  19. 19. Factors influence the polymerization process  Curing time  Shade of resin  Temperature  Thickness of resin  Type of filler  Polymerization shrinkage www.indiandentalacademy.com
  20. 20. classification  According to sturdvent – – –  On the basis of matrix composition On the basis of polymerization method Based on range of filler particle size range According to Phillips – – – – Traditional Small particle Micro filled hybrid www.indiandentalacademy.com
  21. 21. According to MARZOUK  FIRST GENERATION  SECOND GENERATION  THIRD GENERATION  FOURTH GENERATION  FIFTH GENERATION  SIXTH GENERATION www.indiandentalacademy.com
  22. 22.  IDEAL REQUIREMENTS  PROPERTIES www.indiandentalacademy.com
  23. 23. PROPERTIES Biocompatibility  Microleakage  IRRITATION FROM ACTIVATOR LIGHT  RESPONSE OF THE GINGIVAL TISSUES  Water sorption and solubility  DEGRADATION IN THE ORAL ENVIRONMENT  Color stability  Polymerisation contraction  www.indiandentalacademy.com
  24. 24. www.indiandentalacademy.com
  25. 25. MECHANICAL PROPERTIES  HARDNESS  RIGIDITY  FRACTURE TOUGHNESS  CREEP  STRENGHT  THERMAL PROPERTIES  RADIOPACITY www.indiandentalacademy.com
  26. 26. INDICATIONS FOR COMPOSITES  Indications: Class I, II, III, IV, V & VI  Pit & fissure sealants  Veneers  Core build up  Splinting  Midline diastema  www.indiandentalacademy.com
  27. 27. www.indiandentalacademy.com
  28. 28. MICROFILLED COMPOSITE RESINS THEY ARE PUT TO USE IN CASES OF— CLASS 3 CLASS 5 www.indiandentalacademy.com
  29. 29. CONTAINDICATIONS  Grossly destructed tooth  Areas difficult to isolate  Heavy occlusal stresses  Poor oral hygiene  Deep subgingival areas www.indiandentalacademy.com
  30. 30. Advantages  Good esthetics  Conservation of tooth structure  Improved resistance to microleakage  Strengthening of remaining tooth structure  Low thermal conductivity  Completion in one appointment  Economical www.indiandentalacademy.com
  31. 31. Disadvntages  Highly technique sensitive  Higher coefficient of thermal expansion  Low modulus of elasticity  BiocompatibilityOf some components unknown  Limited wear resistance in high areas www.indiandentalacademy.com
  32. 32. Clinical consideations  Depth of cure  Marginal defects  Incremental build up  Selection of an activator light  Selection of matrix band  Placement of a wedge  Post restoration sequale www.indiandentalacademy.com
  33. 33. Placement of composites  Pulp protection  Acid etching  Applying bonding agents www.indiandentalacademy.com
  34. 34. Placement of matrix  Restoration  – Instruments used for insertion – Restoring anterior teeth – Restoring posterior teeth  Finishing and polishing www.indiandentalacademy.com
  35. 35. www.indiandentalacademy.com
  36. 36. Gross finishing with tungsten carbide burs Further finishing with silicon carbide stone www.indiandentalacademy.com
  37. 37. Finer finishing with finishing disk Final finishing with rubber disc www.indiandentalacademy.com
  38. 38. Failures in composite restorations  Discoloration  Marginal fracture  Recurrent caries  Post operative sensitivity  Gross fracture of restoration  Lack of maintaining contact  Accumulation of plaque around the restorations www.indiandentalacademy.com
  39. 39. Marginal staining and ditching Recurrent caries www.indiandentalacademy.com
  40. 40. Excess bonding agent caries not removed completely www.indiandentalacademy.com
  41. 41. Lack of isolation www.indiandentalacademy.com Composi te being touched with fingers
  42. 42. Composite fallen on the tongue Composite being placed in the bulk www.indiandentalacademy.com
  43. 43. Features leading to failures  Incomplete excavation of caries  Incomplete etching or failure to remove residual acid from the enamel tags  Double or nonuniform coat of bonding agent  Lack of isolation  Touch of composites with fingers www.indiandentalacademy.com
  44. 44.  Avoid bulk placement of composites  Curing  Finishing and polishing www.indiandentalacademy.com
  45. 45. Advances in composites www.indiandentalacademy.com
  46. 46.  Flowable composites – Introduced in 1996 – 20-25% less filler content – Mechanical properties 60-90% www.indiandentalacademy.com
  47. 47. FLOWABLE COMPOSITE RESINS •These light cured low viscosity resins are indicated in conditions like— •Cervical lesions •Pediatric restorations •Small, low-stress bearing areas •As a liner below posterior composite restorations www.indiandentalacademy.com
  48. 48.  Packable /condensable composites – PRIMM based – Consistency – Improved properties  Increased flexural modulus  Increased wear resistance  Higher depth of cure  Reduced polymerization shrinkage  nonstickiness www.indiandentalacademy.com
  49. 49. CONDENSABLE (PACKABLE) COMPOSITE RESINS THESE COMPOSITE RESINS ARE RECOMMENDED FOR USE IN--CLASS 1 CLASS 2 CLASS 6 (MOD) CAVITY PREPRATIONS www.indiandentalacademy.com
  50. 50.  Solitare – Introduced in late 1997 – Crushed barium aluminosilicate glass surfaced with small particles – Greater the condensation force better is the packing www.indiandentalacademy.com
  51. 51.  Alert – Chopped miroglass fibre added to the standard hybrid composite fillers – consistency of triturated amalgam – Bulk curing of thickness 5mm(J Dent Res 75 (3):1998) www.indiandentalacademy.com
  52. 52.  Surefil – Execellent handling properties – Urethane modified BISGMA resin – Contains 3 different sized fillers – Tight proximal contact can be achieved – Bulk curing (J of Esthetic and restorative Dentistry) www.indiandentalacademy.com
  53. 53.  Antibacterial composites – Chlorhexidene – MDPB(methacryloxydecyl pyridinium bromide)Imazato et al(1994) – silver www.indiandentalacademy.com
  54. 54.  Expanding matrix resins for composites – Spiro orthocarbonates – Thompson et al (1979) – BISGMA was not compatible – Curing time prolonged www.indiandentalacademy.com
  55. 55. Compomers  Resin ionomer hybrid restorative material  Contains both major ingredients of composites and glass ionomer  E.g.,  Dyract  Dyract AP  COMPOGLASS www.indiandentalacademy.com
  56. 56. Giomers  Pre reacted glass ionomer technology  Fluoride release and recharge – F-PRG TECHNOLOGY – S-PRG TECHNOLOGY  Ideal for pedodontic restorations  E.g., Beautifil – FL-Bond – Fluorosealant www.indiandentalacademy.com
  57. 57. SMART COMPOSITES  Ariston in 1998  Ion releasing composite material  Releases fluoride,hydroxyl and calcium ions  Fluoride release more than compomers www.indiandentalacademy.com
  58. 58. Ormocers      Organically modified ceramics Anterior and posterior restorative material Differs in matrix constituent Polysiloxane matrix Advantages – – – – – – – Biocmpatible Reduced polymerization shrinkage High abrasion resistance Esthetically pleasing Anticaries properties Safe handling Cost effective www.indiandentalacademy.com
  59. 59. Fiber reinforced composite resin systems  Preimpregnated systems fibre reinforced – Targisvectris – Sculpturefibrekor  Non impregnated fibre reinforced – Ribbond – Glass span www.indiandentalacademy.com
  60. 60. www.indiandentalacademy.com
  61. 61. www.indiandentalacademy.com
  62. 62. www.indiandentalacademy.com
  63. 63. LABORATORY COMPOSITE RESINS Used for Indirect Preparation of Restorations on the Dies in the Laboratories for Fabrication Of: •Inlays •Crowns • Veneers bonded to metals •Metal free bridges www.indiandentalacademy.com
  64. 64. CORE BUILD UP COMPOSITE RESINS At times, much of the tooth structure is lost from caries that the crown of the tooth must be built up to receive a crown.They can be light cured or dual cured. They offer the following advantages: •Good bonding to dentin •Can be finished immediately •Easy to contour •High rigidity •Good color under porcelain www.indiandentalacademy.com
  65. 65. PROVISIONAL COMPOSITE RESINS These materials are used in the fabrication of temporary inlays,crowns, and long span bridges. The purpose of these is to• Maintain the position of the prepared tooth •Seal and insulate the preparation and protect the margins • Establish proper vertical dimension • Aid in the diagnosis and treatment planning • And evaluate esthetic replacements. www.indiandentalacademy.com
  66. 66. Nanocomposites  Nanostructured composites  Biocompatible  Maintains the appearance  Improved perfofmace  Longetivity  Superior mechanical properties www.indiandentalacademy.com
  67. 67. Companies materials            3M ESPE BISCO DENMAT DETRAY DENTSPLY KERR PARKELL PREMEIR ULTRADENT IVOCLOR VOCO ZENITH www.indiandentalacademy.com
  68. 68. www.indiandentalacademy.com
  69. 69. References PHILIP’S SCIENCE OF DENTAL MATERIALS-ELEVENTH EDITION  STURDEVANT’S OPERATIVE DENTISSTRYFOURTH EDITION  VIMAL K SIKRI’S TEXTBOOK OF OPERATIVE DENTISTRY  DALE ASCHEHEIN’S ESTHETIC DENTISTRY-SECOND EDITION  WILSON’S ADVANCES IN OPERATIVE DENTISTRY  GOOGLE SEARCH  www.indiandentalacademy.com
  70. 70. www.indiandentalacademy.com

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