567 ob turati on for carmen

7/29/2019 567 Ob Turati on for Carmen

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Obturation


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FINAL WORKING LENGTH CHECK


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OBTURATIONCleaning and Shaping More Important Than

Obturation (taking out more important than

putting in)

If Problems with Obturation, Work on Cleaning

and Shaping!!!

Objective is to create a seal from the coronal

to the apical (FINAL RESTORATION MOST

IMPORTANT)


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Ideal RequirementsNo material has all

Easily introduced Liquid or semisolid and become solid

Seal laterally and apically

Not shrink

Impervious to moisture

Bacteriostatic/cidal

Not stain tooth

Not irritate periapical tissues

Easily removed

Sterile or sterilizable

Radiopaque (SEXY)!!


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WHEN NOT TO OBTURATE?

Continued purulence orexudate in the canals

Significant swelling/infection

Unable to complete treatment same day

(complicated case, pain problems)You cant get them numb, or came late, you

just relief the pain.


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TYPES OF OBTURATION MATERIALS

SolidMaterials

Gutta PerchaBEST

Silver PointsCarrier-Based Systems

Semisolids(NOT RECOMMANDED)

Pastes


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Pastes

1- Difficult to control length (easy to overfill)

2- Poor seal (inconsistent seal)3- May shrink

4- May contain toxic materials

Do not use paraformaldehyde containing

materials (AAE Position Statement)


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Silver Points

No longer recommended for use because of

problems with corrosion by-products

Do NOT need to be retreated unless pathosis or

if needed forrestoration (e.g. needs postspace)


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Carrier-Based Systems

Gutta Percha Lollipop (plastic carrier coated with

gutta percha)

Requires oven heating

Problems arise from forcing to length without

adequate cleaning and shaping (and difficult to

retreat)


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CARRIER-BASED SYSTEMS


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Gutta Percha

Mostly Zinc-Oxide (approx 75%) Gutta Percha

(20%)Filling material (5%)

Standardized and Conventional Cones

Variability in gutta percha cone sizing (not all #30

cones are the same size)**


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Made from the sap of a Malaysian rubber tree, the

gutty replaced feathery balls leather pouches

stuffed with goose down. Old Tom Morris smacked

gutties with glee, but his boss, Allan Robertson, the

first full-time golf pro, called them "the filth" and paid

caddies a penny apiece for gutties, which Robertson

burned in his St. Andrews fireplace.

http://www.golf.com/photos/equipment-game-changers/1850s-gutta-percha-ball


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GUTTA PERCHA

Accessory cones

Regular 0.2


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Sealers

Grossmans Ideal Characteristics

Tissue tolerance

No shrinkage with setting

Slow setting time

Adhesiveness (create a bond) They bond to the tooth not

to gutta percha

Radiopaque--SEXY

No staining Soluble (in a specific solvent)

Not soluble in oral fluids

Antibacterial

Creates a good seal


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Sealers4 major types:

ZOE (zinc oxide eugenol)*

Plastics

Glass Ionomer

Calcium Hydroxide Containing

(CaOH is an antibacterial which dr

will put inside the tooth.


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OBTURATION TECHNIQUES

Cold lateral condensation* - gold standard,

safestand easiesttechnique

Other techniques in book


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LAB OBTURATION VIDEO

See lab/clinic handout for written basic steps


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MASTER CONE CHECK

Instruments/Materials Needed:

Paper Points

Endodontic Files

Sealer

Gutta Percha

Spreaders

Pluggers

Master Cone Radiograph

Hemostats


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MASTER CONE CHECK


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OBTURATION


Sealer

Gutta PerchaSpreaders

Pluggers

Glick

Electronic Heat InstrumentAlcohol Pellets


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OBTURATION


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SUPERENDO ALPHA2 (B&L BIOTECH)


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DIAPEN (DIADENT)


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DIAPEN


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TOUCH N HEAT (SYBRON ENDO)


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SYSTEM B (SYBRON ENDO)


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TEMPORARY OR FINAL RESTORATION


Final Radiograph (double-pack)

Temporary restoration material (Cavit or IRM)OR Permanent restoration

Glick

MirrorExplorer

Floss


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TEMPORARY OR FINAL RESTORATION


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567 ob turati on for carmen

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