Low profile castable and direct implant overdenture attachments. With a low vertical profile of 2.1 mm and diameter of 4.4 mm OT Equator is the smallest attachment system on the market. This system offers multiple solutions for overdenture treatment planning when vertical space limitations are a consideration. Available in two versions, castable and prefabricated titanium abutments which are compatible with any implant brand on the market and manufactured with cuff heights from .5 mm to 7 mm. Female caps are retained by means of a stainless steel housing ranging in four levels of retention, making it easy to process at the dental laboratory or chairside in the dental office. A complete line of OT Equator accessories and tools are also available.