Orion in the chemical cure form is a paste/paste system. The dentist has a choice of using self or light-cure form, depending upon the clinical situation. There is a virtually unlimited working time in the light-cure form, and a convenient working time in the self-cure (chemical) form. It is moldable and non-sticky yet has an adhesive consistency. Material has well-balanced x-ray opacity that permits easy distinguishing from tooth structure, pins and posts. It contains moderately hard filler for easier carving and shaping.
The standard Orion kit comes in two shades: the contrasting one for easy distinguishing from the tooth structure; the other is tooth colored for use under shell crowns.Orion Instructions