The Harmony dual-arch tray is the world’s first biodegradable dual-arch tray. Made from corn starch, it is two devices in one: an anterior tray and a facial plane relator. Now, in just one simple step, you can capture the prepared teeth, the opposing arch, the bite registration, as well as the facial midlines, eliminating slanted crowns and veneers.
The Harmony comes with 40 trays and 40 sets of alignment sticks. Use it without alignment sticks for single units, or with alignment sticks for multiple units. And, at about 89¢ a piece including alignment sticks, it costs less that other anterior dual-arch trays.