Dr.misael palacios.alginatos

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CLASIFICACION DE LOS MATERIALES DE IMPRECION Y ALGINATOS.

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Dr.misael palacios.alginatos

  1. 1. ODONTOLOGI DR…MISAELA ..UACJ. PALACIOSCLASSIFICATION OF PRINT MATERIALS ..(ALGINATOS.) PROFESOR…DR. ALFREDO NEVAREZ RASCON.
  2. 2. In the printing materials are:ELASTIC: those that pass from a fluid state to a highly elastic. Or solidwhich can be removed from undercuts with relative ease and withminimal deformation. THESE ARE CLASSIFIED IN TURN IN: HYDROCOLLOIDS. -Reversible (AGAR-AGAR) -Irreversible(ALGINATO) FIG.02- PRINTING OF SILICON. 2.ELASTOMERS -Poly mercaptano sulfuré. -Silicona por condensación FIG 03-SILICONE -Addition silicone IMPRESSION BY CONDENSATION -poliésteres
  3. 3. NON ELASTICS : Those materials that react assume rigidity, andin some cases little or no elasticity.CLASSIFIED IN TURN IN:1-type plaster Paris.2-molding compounds.3-impression pastes.4-wax to take impressions.5-Polymers to take impressions FIG.4-PLASTER PARIS FIG.-5 WAX PRINT
  4. 4. ALGINATES»FIG.-6 Alginate impression FIG7- Alginate impressions
  5. 5. WHAT IS THE ALGINATE???..Alginate is a purified chemical obtained from brown seaweeds.These substances are for organic polymers derived from alginicacid. FIG.-8 BROWN ALGAE
  6. 6. CARACTERISTICAS»Son compuestos que incluyen una variedad de productosconstituidos por los ácidos D-MANURICO y L-GULURONICO y que son extraídos de algas marronesconocidas como Phaeophyceae, siendo que las másimportantes para la producción comercial de los alginatos. FIG.-9 ALGAS PARDAS (PHAEOPHYCEAE
  7. 7. CLASSIFICATION ALGINATES»Alginates with additives: additives were added to improve the surfaceAlginates chromatic: alginates which are added are pH indicatorsIn order to know when to remove the teaspoon Alginates with antiseptic substances: these substances was added as chlorhexidine in order to avoid cross infection
  8. 8. USES OF THEALGINATE»Alginate is a material widely used in dentistry forimpressions of teeth and adjacent soft tissues. FIG.-11 PRINT MAKING ALGINATE FIG.-10 INSTRUMENTAL ALGINATE
  9. 9. Components»The main component of the alginate is the sodium salt of the acidalguinio.Furthermore, the powder contains calcium sulfate, trisodiumphosphate.(Trisodium phosphate allows a more prolonged handling of thepreparation, thus it is said that retards the staling)
  10. 10. ADVANTAGES» -ECONOMIC. -EASY HANDLING. -Hydrophilic properties FIG.-12 MAKING CORRECT alginate impression.
  11. 11. DISADVANTAGES» -dimensional changes -Low-fidelity details -Elastic Recovery FIG.-13 STRUCTURE FAILED alginate impression.
  12. 12. TRADEMARKS»-Alidel-Ortho print-Phase-Cavec k 37-hydro gum
  13. 13. BIBLIOGRAPHY»http://www.google.com.mx/search?tbm=isch&hl=es&source=hp&biw=1024&gs_sm=e&gs_upl=886l3208l0l3605l8l8l0l1l1l0l254l921l0.4.1l5l0 http://www.elprisma.com/apuntes/odontologia/alginatos/ http://odontored.wordpress.com/2011/08/12/clasificacion-de-los-materiale http://es.wikipedia.org/wiki/Alginato

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