Harmony Dual-Arch Tray

The advantages of the dual-arch trays that we have used (for many years) for single-crown impressions are obvious: accurate impressions of the prepared tooth, the opposing arch, and the occlusal relationship in a single step. Precise and fast, dual-arch trays save 10 minutes or more per case. Dual-arch trays were designed for posterior use, until now. Ho Dental has introduced the Harmony, a dual-function device for anterior aesthetic cases: anterior tray and facial plane relator. Pick up the prepared teeth, the opposing arch, and the bite registration in one step while registering the facial midline, eliminating incorrectly angulated an-terior crowns and veneers. The lab technician who never sees the patient now has access to the required information to create a custom-designed aesthetic restoration. Separate the alignment sticks from the tray and each other and assemble the cross. After loading impression material into the tray, load the alignment stick area with the same material. Insert the dual-function anterior tray and ask the patient to bite in centric or maximum intercuspation. The assembled cross is seated into the handle-retaining area, and the dentist locates the facial midline and the horizontal plane. Once the midline and the horizontal plane have been located, the cross is held in place until the impression has polymerized, when the assembly is removed from the patient’s mouth. The sticks are disassembled and sent to the lab with the impression, where the technician can securely re-insert them to mark the facial midline and horizontal plane on the cast. The Harmony dual-arch tray impression system makes anterior impressions for aesthetic restorations easier, faster, and far more predictable.

For more information, visit hodentalcompany.com.