Dental compomer
Dental Compomer[edit | edit source]
Dental compomers are a type of dental restorative material that combine the properties of composite resins and glass ionomer cements. They are used in dentistry for restorative procedures, particularly in pediatric dentistry and for patients with a high risk of dental caries.
Composition[edit | edit source]
Compomers are composed of a resin matrix similar to that of composite resins, but they also contain ion-leachable glass particles. The resin matrix is typically made of dimethacrylate monomers, while the glass particles are similar to those found in glass ionomer cements. This combination allows compomers to release fluoride ions, which can help in the prevention of secondary caries.
Properties[edit | edit source]
Compomers exhibit several properties that make them suitable for dental restorations:
- Fluoride Release: Like glass ionomer cements, compomers release fluoride ions over time, which can help in remineralizing the tooth structure and preventing caries.
- Aesthetic Appeal: Compomers have good aesthetic properties, including a range of shades that can match the natural tooth color.
- Handling Characteristics: They are easy to handle and can be polished to a smooth finish, similar to composite resins.
- Adhesion: Compomers bond well to tooth structure, although they require the use of an adhesive system for optimal retention.
Indications[edit | edit source]
Compomers are indicated for use in:
- Class III and V restorations in anterior teeth.
- Class I and II restorations in primary teeth.
- Cervical restorations where aesthetics are important.
- Core build-ups in teeth with minimal occlusal stress.
Advantages and Disadvantages[edit | edit source]
Advantages[edit | edit source]
- Fluoride Release: Provides a cariostatic effect.
- Aesthetic: Good color matching and polishability.
- Handling: Easy to manipulate and place.
Disadvantages[edit | edit source]
- Wear Resistance: Less wear-resistant compared to composite resins.
- Moisture Sensitivity: Requires a dry field during placement.
- Adhesion: Requires an adhesive system for optimal bonding.
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