Can I use Dycal under composite?

Further studies are necessary to suggest that Dycal can be used without any inhibitions under composite resin restorations, may be in vivo studies with long-term follow-up of the outcome are required.

Can you use calcium hydroxide under composite?

Studies have shown that calcium hydroxide “softens” under amalgam and resin-based composite restorations. The results are attributed to hydrolysis of the calcium hydroxide by fluid contamination from dentinal tubules and microleakage.

Can you use Dycal under GIC?

CaOH under GIC is redundant and counterproductive. One is placing a hard compressive strength materiral (GIC) on a softer one (Dycal). The rate of reparative dentin is constant and is not determined by the use of Dycal.

What can we use under composite restoration?

A suitable base material for composite resin restorations: zinc oxide eugenol.

Which base is contraindicated under composite resins?

... Traditional base materials, such as zinc oxide-eugenol cements, have been contraindicated for composite restorations due to inhibition of resin polymerization by the phenolic hydrogen of eugenol.

TheraCal LC as a liner in a Class II resin based composite restoration

Is Dycal a liner or base?

Dycal® Calcium Hydroxide Liner is a two-component, rigid-setting, self-curing material designed for use in direct and indirect pulp capping and as a protective liner under dental adhesives, varnishes, filling materials, cements, and other base materials.

Is zinc oxide-eugenol compatible with composite?

Zinc oxide–eugenol cements should be used with caution under resin-based composite restorations because the eugenol can inhibit the polymerization of the resin. A glass ionomer cement base may be placed over zinc oxide–eugenol before the placement of resin-based composite in order to avoid polymerization.

How do you protect pulp from composite restoration?

This light-cured resin modified calcium silicate material uses a hydrophilic resin matrix which allows for the significant release of calcium and hydroxide ions to aid in pulp tissue therapy. Since it is resin based and light-cured, it is an easy solution for pulp protection under all composite restorations.

What cement is used under composite?

27.8 Resin-based composite cements

Cements like zinc phosphate, zinc oxide eugenol, zinc oxide ethoxy benzoic acid (super EBA), polycarboxylate and glass ionomer, provide primarily mechanical retention, since adhesion was estimated to be too low for luting tooth-colored restorations.

Can you use IRM under composite?

Related to microhardness test, IRM can be used safely underneath composite restorations or GI restorations.

Can you use Dycal and Vitrebond together?

Both studies demonstrated that the pulp–dentin complex response to Vitrebond and Dycal indicated acceptable biocompatibility of these materials and there are no statistically significant difference between calcium hydroxide and Resin-Modified Glass Ionomer.

Do you etch before Dycal?

10 The loss of material from Dycal as a result of acid contact is generally regarded as disadvantageous. Therefore, etching procedure should be done before Dycal application.

What is Dycal composition?

Dycal® is a paste-paste calcium hydroxide dental cement uses as pulp capping and liner in dentistry. First paste (base paste) contains titanium dioxide and barium sulphate in glycol disalicylate and second paste (catalyst paste) contains calcium hydroxide, zinc oxide and zinc stearate in ethyl toluene sulphonamide.

Why is calcium hydroxide used in pulp capping?

The beneficial effect of calcium hydroxide is regarded as the result of the chemical injury caused by the hydroxyl ions. limited by a zone offirm necrosis against the vital tissue. and the toleration of calcium ions by the tissue. The firm necrosis causes slight irritation and stimulates the pulp to defense and repair.

What dental cement should never be used under a composite restoration?

Zinc oxide–eugenol cements should be used with caution under resin-based composite restorations because the eugenol can inhibit the polymerization of the resin.

Can we use glass ionomer under composite?

Glass ionomer cement can be used as a restorative material in its own right or as a base for a composite resin overlay (sandwich restoration) where the remaining tooth structure is unsupported and requires a bonded composite to maintain its structural integrity.

Does composite bond with GIC?

It is recommended that a bonding adhesive be applied after acid etching chemically curing GICs in order to achieve a bond to composite resin. The light curing GIC should not be etched with phosphoric acid and is the material of choice as it is both stronger and less technique sensitive than the chemically curing GICs.

When would you use calcium hydroxide liner?

Calcium hydroxide liners are used for its bioinductive and antimicrobial activity. It should be only used in the deepest spots in the cavity where the RDT is ≤0.5 mm. The placement of calcium hydroxide should be followed by a layer of RMGI to protect it from its drawbacks.

What is considered as best pulp protection?

Calcium hydroxide was introduced to the dental profession in 1921 and has been considered the “gold standard” of direct pulp capping materials for several decades.

Is Dycal light cured?

Abstract. Two light-cured materials, Vitrebond and Prisma VLC Dycal, were compared with two chemically cured materials, Ketac Fil and Dycal, for ability to seal furcation perforations.

What liner can be used under composite?

In our practice, we have traditionally used resin modified glass ionomer (RMGI) liner/bases for deep cavities and composite procedures. By their nature, RMGI liners are typically fluid materials that can adapt more readily to the internal aspects of a cavity preparation.

Does eugenol inhibit polymerization?

Eugenol reacts with free radicals, thereby inhibiting the polymerization of methacrylate monomers [18]. Thus, it is incompatible with the resin restorative system. Although eugenol inhibits the polymerization of methyl methacrylate (MMA), a fast polymerization probably occurs when eugenol is consumed.

Is ZOE and IRM the same thing?

IRM is an intermediate restorative material, composed of polymer reinforcement zinc oxide-eugenol (ZOE).