Dentsply ChemFil Superior Fast Setting Restorative GIC

Dentsply ChemFil Superior is a fast-setting Glass Ionomer Cement (GIC) restorative material, formulated from a blend of alumino silicate glass and polyacrylic acid. This material is designed to adhere to dentin and enamel, facilitating the creation of tightly sealed, strong, and aesthetic restorations.

The material is suitable for a variety of clinical indications, including the restoration of Class I and II cavities in deciduous teeth, Class III and Class V lesions and cavities. It is also indicated for temporary and semi-permanent restorations, as well as fissure fillings in minimal Class I cavities. Additionally, ChemFil Superior can be utilized for core build-ups when future metal or veneer crowns are contemplated.

ChemFil Superior is supplied as a powder/liquid system, intended for hand mixing with distilled water to achieve a homogeneous consistency. It offers a working time of approximately 2 minutes from the start of the mix and a setting time of 2 to 3 minutes after mixing, contributing to efficient clinical workflows. The material complies with the requirements of ISO 9917-1:2003 for glass-ionomer restorative materials.

Key Features : 

Material Type and Clinical Indication: Glass Ionomer Cement (GIC) suitable for Class I, II (deciduous teeth), III, and V restorations, temporary/semi-permanent restorations, fissure fillings, and core build-ups.
Mixing and Handling Protocol: Powder/liquid system designed for hand mixing with distilled water, ensuring consistent preparation.
Setting and Working Characteristics: Provides an approximate working time of 2 minutes and a setting time of 2 to 3 minutes.
Mechanical Properties: Exhibits a compressive strength greater than 200 MPa after 24 hours and over 250 MPa after 1 week.
Adhesive Properties: Demonstrates adhesion to dentine of 5 MPa and adhesion to enamel of 10 MPa.
Regulatory Standard: Complies with ISO 9917-1:2003 for glass-ionomer restorative materials.

Step 1: Cavity Preparation
Minimal cavity preparation is required. Mechanical retention is generally unnecessary unless the restoration will be exposed to high displacement forces.
Step 2: Cleaning
Clean enamel and dentine with water spray and air-dry. If no cavity preparation is needed, clean the tooth surface using a rubber cup with pumice or prophylaxis paste, then rinse thoroughly and dry.
Step 3: Pulp Protection
In deep cavities, apply a calcium hydroxide liner on dentine closest to the pulp, leaving the remaining cavity surfaces free for chemical bonding.
Step 4: Surface Conditioning
Apply a cavity conditioner to the cavity surface for 15 seconds, rinse thoroughly, and gently dry while keeping the surface slightly moist.
Step 5: Shade Selection
Select the appropriate shade using the shade guide. Final shade develops after the material sets.
Dosage & Mixing
Mixing Ratio: 2 scoops powder : 2 drops liquid (distilled/deionized water).
Mixing Method: Divide the powder into two parts. Mix the first part with water for about 5 seconds, then add the remaining powder and mix for 10 seconds.
Total Mixing Time: Maximum 20 seconds.
The final consistency should resemble that of composite resin.