Glossary Entry: Impression

Overview

Definition: An impression in dental terms refers to a negative imprint or mold of a patient’s teeth and surrounding oral structures. It is used to create accurate replicas for various dental treatments like crowns, bridges, and dentures.

Detailed Description

Types and Variations

Variations: There are various types of dental impressions, including traditional alginate impressions, digital impressions using intraoral scanners, and silicone-based material impressions. Each type has specific applications based on the treatment requirements.

Indications

Common Uses: Dental impressions are commonly used in procedures like crown and bridge fabrication, orthodontic treatment planning, and prosthetic restorations. They help in designing custom-made dental appliances that fit the patient’s mouth perfectly.

Insertion and Placement

Procedure: The process of taking a dental impression involves placing a tray filled with impression material into the patient’s mouth and allowing it to set. Careful removal of the set impression ensures accurate replication of the teeth and soft tissues.

Clinical Considerations

Potential Complications

Risks: Potential complications of dental impressions include gag reflex in patients, distortion of the impression material during setting, and inaccurate replication leading to ill-fitting dental restorations.

Care and Maintenance

Maintenance Requirements: Dental impressions should be stored in a cool, dry place to prevent distortion. Proper disinfection of reusable impression trays is essential to maintain hygiene standards.

Additional Information

Related Devices

Associated Terms: Devices like impression trays, spatulas for mixing impression material, and tray adhesive are often used in conjunction with dental impressions to ensure accurate results.

Innovations and Advancements

Recent Developments: Recent advancements in digital impression technology have revolutionized the dental field, offering faster, more precise, and comfortable ways of capturing dental impressions without the need for traditional impression materials.

Regulatory and Safety Notes

Regulations: Dental professionals must adhere to strict infection control protocols when handling impression materials and equipment to prevent cross-contamination and ensure patient safety.