The ring body is made of nickel titanium alloy material, with stable and reliable clamping force, long-lasting softness, elasticity without deformation and durability.
The top of the tip is clamped within the axial angle ensuring reliable tooth separation and tight contact between adjacent areas. The contact surface is designed with a double curvature. Good fit with the body, with the foot extending into the concave area, stable fixation to prevent collapse
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