China Orthodontic Retainers suppliers China Orthodontic Retainers suppliers Production Introduction锛?/h4>A space maintainer is an oral appliance made to 鈥渕aintain鈥?the space left behind by a missing baby tooth. They are generally made out of metal or acrylic and can either be fixed into the mouth or removable. Fixed space maintainers are cemented into the mouth, while removable space maintainers look similar to orthodontic...
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