Root canal sealers


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Root canal sealers

  1. 1. <ul><li>ENDODONTIC SEALERS </li></ul>
  2. 2. <ul><li>GROSSMAN’S 11 REQUIREMENTS (1958) </li></ul><ul><li>Tacky when mixed – to provide good adhesion between it and the canal when set </li></ul><ul><li>Make a fluid tight seal </li></ul><ul><li>Radiopaque – so that it can e visualized in the radiograph </li></ul><ul><li>Particles of powder should be very fine so that they can mix easily with the liquid </li></ul><ul><li>Not shrink upon setting </li></ul><ul><li>Not stain tooth structure </li></ul><ul><li>Bacteriostatic or at least not encourage bacterial growth </li></ul>
  3. 3. <ul><li>Insoluble in tissue fluids </li></ul><ul><li>Tissue tolerant i.e., nonirritating to periradicular tissue </li></ul><ul><li>Soluble in a common solvent if it is necessary to remove the root canal filling </li></ul><ul><li>ADDITIONAL REQUIREMENTS </li></ul><ul><li>Not provoke an immune response in periradicular tissue </li></ul><ul><li>Neither mutagenic nor carcinogenic </li></ul>
  4. 4. <ul><li>Functions of sealers </li></ul><ul><li>Serves as a filler for canal irregularities and minor discrepancies between the root canal wall and core filling material </li></ul><ul><li>To obturate the lateral canals </li></ul><ul><li>Acts as lubricant </li></ul><ul><li>Enhances the possible attainment of an impervious seal </li></ul><ul><li>Can assist in microbial control of root canal walls or in tubules </li></ul><ul><li>For radiopacity </li></ul>
  5. 6. ZINC OXIDE CONTAINING NON-ZINC OXIDE CONTAINING EUGENOL CONTAINING NON-EUGENOL CONTAINING Rickert’s sealer Kerr’s Pulp Canal Sealer Procosol Tubliseal Wach’s paste (Sealex Extra) FORMALDEHYDE BASED N2 / RC2B Endomethasone Riebler’s paste IODOFORM BASED MCS (Medicated Canal Sealer)
  6. 7. CALCIUM HYDROXIDE BASED CRCS (Calcibiotic Root Canal Sealer) Sealapex Apexit RESIN BASED epoxy AH – 26, AH-Plus diketone Diaket EndoRez methacrylate Fibrefill Epiphany root canal sealant CALCIUM PHOSPHATE BASED Bioseal Apatite Root Canal Sealer I & II G – 5, G – 6 CAPSEAL I & II
  7. 8. <ul><li>ZINC OXIDE EUGENOL SEALERS </li></ul>
  8. 9. <ul><li>KERR PULP CANAL SEALER </li></ul><ul><li>Developed as RICKERT’S SEALER </li></ul><ul><li>Composition </li></ul><ul><ul><li>POWDER </li></ul></ul><ul><ul><ul><li>Zinc oxide 34.0 – 41.2 </li></ul></ul></ul><ul><ul><ul><li>Silver 25.0 – 30.0 </li></ul></ul></ul><ul><ul><ul><li>Oleoresins </li></ul></ul></ul><ul><ul><ul><li>(White resins) 30.0 – 16.0 </li></ul></ul></ul><ul><ul><ul><li>Thymol iodide 11.0 – 12.8 </li></ul></ul></ul><ul><ul><li>LIQUID </li></ul></ul><ul><ul><ul><li>Oil of Cloves 78.0 – 80.0 </li></ul></ul></ul><ul><ul><ul><li>Canada balsam 20.0 – 22.0 </li></ul></ul></ul>
  9. 11. <ul><li>GROSSMAN’S SEALER </li></ul><ul><li>Most widely used ideal sealer </li></ul><ul><li>PROPERTIES </li></ul><ul><ul><li>Adequate plasticity </li></ul></ul><ul><ul><li>Slow setting time </li></ul></ul><ul><ul><ul><li>At 37 0 C and 100% humidity – 2 hrs </li></ul></ul></ul><ul><ul><ul><li>In root canal – 10 –30 min </li></ul></ul></ul>Spatulation time – a minute per drop of liquid
  10. 12. <ul><ul><li>Proper consistency </li></ul></ul><ul><ul><ul><li>Smooth creamy mix </li></ul></ul></ul><ul><ul><ul><li>String out test </li></ul></ul></ul><ul><ul><ul><ul><li>Should string out at least an inch before breaking </li></ul></ul></ul></ul><ul><ul><ul><li>Drop test </li></ul></ul></ul><ul><ul><ul><ul><li>Suspended mix should cling to the inverted spatula blade for 10 – 15 sec before dropping </li></ul></ul></ul></ul>
  11. 13. <ul><li>ADVANTAGES </li></ul><ul><ul><li>Good sealing potential because of small volumetric change on setting </li></ul></ul><ul><ul><li>Resorbs gradually if extruded apically </li></ul></ul><ul><ul><li>Reversible inhibitory effect on nerve tissue </li></ul></ul><ul><li>DISADVANTAGES </li></ul><ul><ul><li>Is a weak unstable material </li></ul></ul><ul><ul><li>Decomposed by water through a continuous loss of eugenol </li></ul></ul><ul><ul><li>Not a good choice for retrofillings </li></ul></ul>
  12. 14. <ul><li>RESIN BASED SEALERS </li></ul><ul><li>EUGENOL BASED RESIN SEALERS </li></ul>
  13. 15. <ul><li>N2 </li></ul><ul><li>Formaldehyde containing zinc oxide – eugenol sealer </li></ul><ul><li>Used as a core filling material </li></ul><ul><ul><li>Also known as ‘Sargenti technique’ </li></ul></ul><ul><li>Used as a sealer </li></ul><ul><ul><li>Seals well with a core </li></ul></ul>
  14. 16. <ul><li>PROPERTIES: </li></ul><ul><ul><li>N2 is very toxic </li></ul></ul>
  15. 17. <ul><li>DIAKET </li></ul><ul><li>Polyketone compound </li></ul><ul><li>Modified zinc oxide cement </li></ul>
  16. 18. <ul><li>COMPOSITION </li></ul><ul><ul><li>POWDER </li></ul></ul><ul><ul><ul><li>Zinc oxide </li></ul></ul></ul><ul><ul><ul><li>Bismuth phosphate </li></ul></ul></ul><ul><ul><li>LIQUID </li></ul></ul><ul><ul><ul><li>2,2’ Dihydroxy – 5,5’ dichlorodiphenyl methane </li></ul></ul></ul><ul><ul><ul><li>Proprionylacetophenone (B-diketone) </li></ul></ul></ul><ul><ul><ul><li>Triethanolamine </li></ul></ul></ul><ul><ul><ul><li>Caproic acid </li></ul></ul></ul><ul><ul><ul><li>Copolymers of vinylacetate, vinyl chloride and vinyl isobutyl ether </li></ul></ul></ul>
  17. 19. <ul><li>RESIN BASED SEALERS </li></ul><ul><li>EPOXY BASED SEALERS </li></ul>
  18. 20. <ul><li>AH-26 </li></ul><ul><li>Is an epoxy resin </li></ul><ul><li>Was initially developed as a single fill material </li></ul><ul><li>Presently used extensively as a sealer </li></ul>
  19. 22. <ul><li>PROPERTIES </li></ul><ul><ul><li>Has good handling characteristics </li></ul></ul><ul><ul><li>Can be warmed on a glass slab over an alcohol flame to decrease viscosity </li></ul></ul><ul><ul><li>Has strong adhesive properties </li></ul></ul><ul><ul><ul><li>seals well </li></ul></ul></ul><ul><ul><li>Contracts slightly while hardening </li></ul></ul><ul><ul><li>Once set has one of the lowest toxicities and is well tolerated by perapical tissues </li></ul></ul>
  20. 23. AH-26 AH-PLUS
  21. 25. <ul><li>RESIN BASED SEALERS </li></ul><ul><li>METHACRYLATE -BASED SEALERS </li></ul>
  22. 26. <ul><li>FIBREFILL ROOT CANAL SEALANT </li></ul><ul><li>Its composition resembles that of dentin-bonding agents </li></ul>
  23. 27. <ul><li>EPIPHANY ROOT CANAL SEALANT </li></ul><ul><li>is a dual-curing, hydrophilic resin sealer </li></ul><ul><li>used with Resilon core materials </li></ul><ul><li>dispensed from a double barrel, auto-mix syringe </li></ul><ul><ul><li>for greater ease of use </li></ul></ul><ul><ul><li>accurate mixing </li></ul></ul>
  24. 28. <ul><li>CALCIUM HYDROOXIDE SEALER </li></ul>
  25. 29. <ul><li>SEALAPEX </li></ul><ul><li>Basically a zinc oxide based calcium hydroxide containing polymeric resin root canal sealer </li></ul><ul><li>Available as 2 tube-2 paste system </li></ul>
  26. 30. <ul><li>CRCS (CALCIBIOTIC ROOT CANAL SEALER) </li></ul><ul><li>Zinc oxide eugenol / eucalyptol sealer to which calcium hydroxide has been added </li></ul>
  27. 31. <ul><li>GLASS – I0N0MER SEALERS </li></ul>
  28. 32. <ul><li>KETAC-ENDO </li></ul>
  29. 33. <ul><li>FORMALDEHYDE CONTAINING SEALERS </li></ul>
  30. 34. <ul><li>Formulation very similar to N2 </li></ul><ul><li>Pink antiseptic powder mixed with engenol </li></ul>
  31. 35. <ul><li>Factors to be considered in selection of sealers </li></ul><ul><li>These are determined by the need for each case </li></ul><ul><ul><li>Amount of lubrication that is needed </li></ul></ul><ul><ul><li>Working time anticipated </li></ul></ul><ul><ul><li>Temperature of core materials </li></ul></ul><ul><ul><li>Irritating potential of sealer, if it escapes into periapical tissues </li></ul></ul><ul><ul><li>Choice of intra canal irrigants and medicaments </li></ul></ul><ul><ul><li>Antimicrobial action </li></ul></ul><ul><ul><li>Biocompatibility </li></ul></ul>
  32. 36. THANK YOU.