Maryland Dental Bands’ U Bands are an all-in-one band and retainer held from the buccal and lingual teeth, creating a U shaped curve for easy, predictable contact. Great for adjacent restorations, great for young patients, no retainers to tighten, no scary looking clamp forceps. Great for deep restorations, slide them subgingivally without the other side getting in the way. Will isolate your box from blood and saliva. Economic, simple , efficient.