Clinical Overview
3M™ Express™ XT Penta™ is a vinyl polysiloxane (VPS) impression material designed for highly accurate dental impressions in restorative procedures. Delivered in Penta™ cartridges for use with the 3M Pentamix™ automatic mixing system, it provides consistent, homogeneous mixing and bubble-free dispensing. The material is engineered with advanced hydrophilic properties and excellent elastic recovery, allowing clinicians to capture precise detail even in moist clinical environments.
Key Benefits
- High precision VPS material: Captures fine marginal detail for accurate dental restorations.
- Excellent hydrophilicity: Provides reliable detail reproduction even in the presence of saliva or moisture.
- Elastic recovery: High recovery from deformation helps maintain impression accuracy.
- Tear resistance: Tough material resists tearing during removal from the mouth.
- Automatic mixing system: Penta cartridge delivery ensures consistent mixing and bubble-free material.
- Multiple viscosities and set times: Available to accommodate different impression techniques and clinical preferences.
Kit Contents
- Penta cartridge containing base and catalyst paste
- Compatible with 3M Pentamix automatic mixing units
- Designed for use with appropriate mixing tips and impression trays
Working & Setting Times
- Working time: Approximately 1:30–2:00 minutes depending on material viscosity and setting version.
- Intra-oral setting time: Approximately 3:00–3:30 minutes depending on selected formulation.
Indications
- Crown and bridge impressions
- Inlay and onlay impressions
- Implant impressions
- Full-arch and quadrant impressions
- One-step or two-step putty/wash impression techniques
Instructions for Use
- Load the Penta cartridge into the Pentamix automatic mixing unit.
- Dispense the impression material directly into the tray.
- Apply wash material around the prepared teeth if using a two-viscosity technique.
- Seat the loaded tray in the patient’s mouth.
- Allow the material to set according to the recommended intra-oral setting time.
- Remove the tray carefully and inspect the impression for detail accuracy.
Summary
3M Express XT Penta is a precision VPS impression material engineered to deliver consistent, highly detailed impressions for restorative dentistry. Its hydrophilic properties, strong elastic recovery, and automatic mixing delivery system help clinicians achieve accurate impressions with reduced risk of distortion and fewer retakes.
