Product Introduction
Orthodontic bands are typically made of metal. They are pre-formed metal rings specifically designed to fit snugly around the crown of a tooth (usually a molar), serving as the anchorage foundation for the entire orthodontic appliance system. Buccal tubes or question-mark hooks are usually welded onto the outer surface. The main archwire runs through these metal tubes, and all orthodontic forces ultimately converge and are transmitted here.
Acting as a "metal armor" for molars, bands are essential tools for establishing anchorage and securing orthodontic appliances during treatment. Although small and positioned in the back of the mouth, they play a crucial role in ensuring treatment outcomes and maintaining oral health.
Bands are generally applied to the first and second molars (tooth positions 6 and 7). In China, there are 20 standard sizes ranging from #16 to #35, while internationally, there are 25 sizes ranging from #32 to #44. They come in two main types: plain bands and bands with pre-welded buccal tubes.
Advantages
1. They provide stable retention and are highly resistant to rust and deformation. Pre-formed resin bands are occasionally used for primary teeth in children or in specific restorative scenarios; however, metal bands remain the mainstream choice due to their superior strength.
2. Compared to conventional brackets that are bonded directly to the tooth surface, bands wrap around more than half of the posterior tooth crown, offering exceptionally strong retention. Posterior teeth (molars) endure the greatest occlusal forces during chewing and serve as the "anchors" for moving the entire dental arch. The more stable these anchors are, the more effectively the anterior teeth can be pulled into position. If conventional brackets were bonded directly to these high-stress areas, they would easily debond or fracture during chewing or under functional loads.
Main functions