Zoe Mixed to a Base Consistency Should Not Be:

As with ZOP ZPC should be mixed on a cold glass slab to increase the working time. Last a few weeks at most seal the dentinal tubules surprisingly well against the ingress of oral fluids and have a sedative effect on the pulp can cause pulp necrosis and should not be used directly on a pulp.

Mixing Liners Bases And Cements Pocket Dentistry

The clinician should allow approximately 24 hours to pass prior to placing amalgam above a ZOE base.

. Apply enough cement to achieve a 05 mm thickness. What is rolled into a one large ball. Interferes with polymerization.

Using a calcium hydroxide applicator pick up the cement and carefully place it into the prepared cavity allowing it to flow over the surface. 1 You will find IRM in the area next to the sinks. Zinc Oxyphosphate Zinc oxyphosphate ZOP is a powderliquid combination that is an ideal base material since it can provide thermal insulation and will allow the condensation of amalgam several minutes after placement.

ZOE should be mixed and rolled into two small balls to make the material easier to place. ZOE can be purchased in a powderliquid form in regular or reinforced type both of which can be mixed to a creamy consistency for temporary crown cementation or a putty consistency for base or temporary restoration placement. What type of Zoe is used for permanent cementation systems are zinc phosphate and zinc oxide-eugenol ZOE.

Components Dictate Handling and Mixing. The liquid is a preparation of eugenol which reacts with the powder to form an amorphous chelate of zinc eugenolate. They include products such as ZOE.

This means that fewer drops of liquid will be needed to mix. Zinc phosphate is typically used for permanent cementation whereas ZOE is used for temporary cementation. ZOE mixed to a base consistency should not be.

212 contains zinc oxide rosin and zinc acetate in the powder. Both can serve as insulating bases to protect tissues from heat or cold passing through highly conductive amalgam restorations. Dental cements that are used to lute crowns and that serve as a base may also be used as a temporary restorative material.

ZPC eg HyBond Polycarboxylate Shofu. ZOE BTmaterial is contraindicated as a base under resin-containing adhesives restoratives or cements because eugenol may interfere with the hardening andor cause softening of the polymeric resin components. ZOE mixed to a base consistency should be thick and putty-like should cover the entire pulpal floor and should be tapped lightly.

GIC RESTORATION Compatible with pulp so nothing is required except in very deepless than 05 mm remaining dentin thickness. Calcium hydroxide liner may be used. A base or temporary restoration mi x is thicker than a luting mix.

Mix the two by gently folding the powder into the liquid. Durelon 3M ESPE has a very short set time making it a user-friendly base. In luting consistency less powderliquid ratio is used in order to have creamy mix which is used for cementation of crown and inlays.

When ZOP is to be used as a base it should. Here the materials are mixed to a thicker consistency than used for luting. Either luting consistency or cement base consistency.

Do not mix p owders and liquids of different cements or different products of the same type. Mixed with plastic filling material as it has short ST. The ZOE cemen t and zinc phosphate cement are mixed with a powder liquid ratio that depends on the intended use.

CLINICAL MANIPULATION Temporary ZOE cements luting provisional acrylic crowns and fixed partial dentures. 2 Use the measuring scoop. Not utilized as a direct pulp cap eugenol in a high concentration can be toxic to the pulp.

While in cement base consistency more powderliquid ratio is used to have putty mix of zinc phosphate. Powder contains methacrylate resin in dust form. Cavity varnish and ZOE should not be used with composite restorative materials methyl-methacrylate where they may affect the polymerization process.

Mixing should take up to 15 seconds. Non-irritating to pulp eugenol has a soothing obtundent effect on the pulp. ZOE can be used with methylmethacrylate acrylic temporaries and also to cement aluminum and stainless steel temporary crowns.

The difference between luting consistency and base consistency is that a higher powderliquid ratio is used for base consistency. It serve s a s protective ba rrier or base not only beneat h re sin. Zinc oxideeugenol cement Fig.

Rolled into a one large ball What would you select as a protective base for insulation that is no irritating under a composite restoration. Consistency reached by adding powder never by. Zinc phosphate is not usually thought to be used as liner however one product not yet available in Australia is advocated as a liner when mixed with copal varnish to achieve a thin mix.

Not used under composite restor. When used as a base under amalgam ZPC can be placed below any thin enamel so that the metallic color of the amalgam does not show through. ZOE should not be used with composite since they interfere with their polymerization.

ZOE mixed to a base consistency should not be Rolled into a one large ball You are asked to select a protective base for insulation that is nonirritating under a composite restoration. The rosin increases fracture resistance and the zinc acetate is effective in accelerating the reaction rate.

Mixing Liners Bases And Cements Pocket Dentistry

Mixing Liners Bases And Cements Pocket Dentistry

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