Dentsply Intermediate Restorative Material IRM

Dentsply Intermediate Restorative Material (IRM)

Dentsply IRM Intermediate Restorative Material is designed for intermediate restorations intended to remain in place for up to one year. It is widely used in temporary and emergency restorative situations and offers strength properties that closely approach those of zinc phosphate cement.

IRM is suitable for a broad range of clinical applications, including endodontic access openings, pediatric teeth expected to exfoliate soon, and caries management programs. The material is available in an ivory shade and supplied in a powder–liquid hand-mix delivery system.

Indications

• Intermediate restorative material for temporary restorations
• Class I and Class II restorations (clinically proven superior to other ZOE and EBA formulations)
• Restoration of deciduous teeth when permanent teeth are expected to erupt within two years
• Restorative emergencies and temporary placements prior to complete treatment
• Caries management programs
• Use in dental school clinics and public health dental programs
• Base material under non-resin cements and restorations such as amalgams, inlays, and onlays

Advantages

• Polymer-reinforced zinc oxide–eugenol formulation
• Eugenol provides sedative-like effects on hypersensitive pulp
• Acts as an effective thermal insulator
• Excellent abrasion resistance
• Good sealing properties
• Low solubility for improved longevity
• Strength comparable to zinc phosphate cement

Key Specifications

• Composition

Powder

• Zinc oxide
• Magnesium oxide
• Zinc acetate

Liquid

• Eugenol

Packaging

• 1 × Powder Bottle (38 g)
• 1 × Liquid Bottle (14 mL)