Are there any new innovations in tooth isolation materials?

There are several interesting new designs for rubber dams and cheek retractors. Hygienic Framed Non-Latex Flexi Dam (Coltène/Whaledent) is a new pre-framed rubber dam to use with any rubber dam clamp. The flexible frame is bonded to the perimeter of the dam. Because of the increased flexibility of the frame, patients seem to feel more comfortable wearing it. Also, endodontic procedures and associated digital X-rays are easier using this product.
OptraDam (Ivoclar Vivadent) is an anatomically shaped, framed dam with inner and outer rings. The inner ring molds to the mucobuccal fold, and the outer ring retracts the cheek and lips. There is no need for a rubber dam clamp when using this dam.
OptraGate (Ivoclar Vivadent) is a latex-free cheek and lip retractor. It also has an inner ring that is positioned in the buccal vestibule and outer ring that remains outside of the mouth. It does not provide complete isolation, but the amount of isolation was judged as excellent by clinical consultants of THE DENTAL ADVISOR. It is indicated for restorative procedures, tooth whitening and photography.