Inside Dental Assisting
May/June 2014, Volume 11, Issue 3
Published by AEGIS Communications
Integrity® Multi•Cure Temporary Crown and Bridge Material
A unique dual-cure composite provisional resin from DENTSPLY Caulk
As part of the initial treatment after tooth preparation, a temporary (provisional) crown must be fabricated to protect the tooth preparation while the definitive restoration is being fabricated. A well-made provisional restoration has many benefits, such as helping clinicians evaluate the reduction of occlusal and axial dimensions. In the case of anterior restorations, temporary restorations provide an esthetic preview for the evaluation of color, contours, and shapes of the teeth before fabrication of the definitive restoration. Once cemented, provisional restorations provide pulp protection for vital teeth between treatment appointments.
In the past, most temporary restorations were fabricated using acrylic resins. These methylmethacrylate materials are difficult to manipulate and have poor physical properties. The disadvantages of methylmethacrylate materials are numerous, including significant shrinkage and heat generation during polymerization, wear in occlusal function, low strength values, and discoloration over time. To overcome the deficiencies of acrylic resin, Bis-acrylic composite resins, such as Integrity® Temporary Crown and Bridge Material from DENTSPLY Caulk, were introduced.
A new addition to the Integrity family of provisional composite resins, Integrity Multi•Cure Temporary Crown and Bridge Material was introduced to decrease the time required to fabricate a provisional crown by up to 30%. Unlike traditional Bis-acrylic composites that need to bench cure, Integrity Multi•Cure Material can be light cured. Once the temporary crown is removed from the mouth, a 20-second light cure takes the composite from an elastic phase to a fully set temporary restoration with excellent physical properties. Integrity Multi•Cure Material has negligible shrinkage, which ensures excellent fit and minimal adjustments before cementation. Integrity Multi•Cure Material is wear resistant and has improved flexural strength.
Use a disposable closed-bite tray to fabricate the matrix carrier for Integrity Multi•Cure Material. If the tooth being prepared has a fractured cusp, a composite resin can be placed to restore the desired contour before taking the matrix carrier impression.
The matrix impression is made using Algin•X™ Ultra Alginate Alternative (DENTSPLY Caulk). After tooth preparation, dispense the Integrity Multi•Cure Material into the matrix so the automixing tip touches the occlusal surface or incisal edge of the impression, and fill from the inside out, which helps avoid air entrapment and voids.
Place the carrier with Integrity Multi•Cure Material into the mouth and allow setting for 90 seconds. Remove the carrier from the mouth. Integrity Multi•Cure Material will bench cure in five minutes from the start of mixing. For faster setting, light-cure the provisional for 20 seconds.
The provisional restoration can be adjusted and trimmed using diamonds, discs, and acrylic burs. Polishing of the restoration can be done using the Enhance® Finishing System followed by cementation with Integrity TempGrip® Temporary Crown and Bridge Cement (DENTSPLY Caulk).
The preceding material was provided by the manufacturer. The statements and opinions contained therein are solely those of the manufacturer and not of the editors, publisher, or the Editorial Board of Inside Dental Assisting.