dr.misael palacios alginatos

1. ODONTOLOGI DR…MISAEL
A ..UACJ. PALACIOS
CLASSIFICATION OF PRINT MATERIALS ..
(ALGINATOS.)
PROFESOR…DR. ALFREDO NEVAREZ RASCON.

2. In the printing materials are:
ELASTIC: those that pass from a fluid state to a highly elastic. Or solid
which can be removed from undercuts with relative ease and with
minimal 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. NON ELASTICS : Those materials that react assume rigidity, and
in 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. ALGINATES»
FIG.-6 Alginate impression FIG7- Alginate impressions

5. WHAT IS THE
ALGINATE???..
Alginate is a purified chemical obtained from brown seaweeds.
These substances are for organic polymers derived from alginic
acid.
FIG.-8 BROWN ALGAE

6. CARACTERISTICAS»
Son compuestos que incluyen una variedad de productos
constituidos por los ácidos D-MANURICO y L-
GULURONICO y que son extraídos de algas marrones
conocidas como Phaeophyceae, siendo que las más
importantes para la producción comercial de los alginatos.
FIG.-9 ALGAS PARDAS (PHAEOPHYCEAE

7. CLASSIFICATION
ALGINATES»
Alginates with additives: additives were added to improve the surface
Alginates chromatic: alginates which are added are pH indicators
In 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. USES OF THE
ALGINATE»
Alginate is a material widely used in dentistry for
impressions of teeth and adjacent soft tissues.
FIG.-11 PRINT MAKING
ALGINATE
FIG.-10 INSTRUMENTAL
ALGINATE

9. Components»
The main component of the alginate is the sodium salt of the acid
alguinio.
Furthermore, the powder contains calcium sulfate, trisodium
phosphate.
(Trisodium phosphate allows a more prolonged handling of the
preparation, thus it is said that retards the staling)

10. ADVANTAGES»
-ECONOMIC.
-EASY HANDLING.
-Hydrophilic properties
FIG.-12 MAKING CORRECT alginate
impression.

11. DISADVANTAGES»
-dimensional changes
-Low-fidelity details
-Elastic Recovery
FIG.-13 STRUCTURE FAILED alginate
impression.

12. TRADEMARKS»
-Alidel
-Ortho print
-Phase
-Cavec k 37
-hydro gum

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