Magic FoamCord is a new non-hemostatic gingival retraction system by Coltène/Whaledent. Magic FoamCord is reportedly the first expanding vinyl polysiloxane material designed for retraction of the gingival sulcus without the potentially traumatic and time-consuming packing of retraction cord. Magic FoamCord material is syringed around the crown preparation margins and a cap (Comprecap) is placed to reportedly maintain pressure. After five minutes, the cap and foam are removed and the tooth is ready for the final impression.
The product’s packaging, written instruction, and dispensing system were rated highly by evaluators. Working time for the material was adequate. The color and consistency of the foam made it easy to verify placement and removal, and evaluators found the material easy to remove from the preparation and sulcus. One evaluator felt the foam retraction was less traumatic to the tissues than retraction cord. Lot numbers and expiration dates were printed on individual foam cartridges.
Most users did not find that the relatively expensive Magic FoamCord was faster than their usual technique of placing retraction cord. Some felt the intraoral tips were too large to adequately inject the material into the sulcus. When asked to rate the quality of retraction, most providers stated that Magic FoamCord was less effective than their usual technique, especially with subgingival margins. Hemostasis must be established prior to the use of Magic FoamCord, significantly reducing its clinical efficiency.
This review has been adapted from the DECS website. The DECS has no formal association with Dentalcompare or with vendors listed on dentalcompare.com. The DECS does not specifically endorse any particular product or vendor and is provided for informational purposes only.
Magic FoamCord Gingival Retraction System
Less traumatic than retraction cord. Easy to see and remove during use.
Limited clinical indications. No hemostasis provided. Relatively expensive. Less effective than cord.
The Bottom Line
Vinyl polysiloxane-based gingival retraction system that is less effective than traditional cord in providing hemostasis and expanding the sulcus.