Matrices that are specially designed to create a 2-part form around the tooth by using both mesial and distal abutting matrices. Form creates a mould around the tooth, sealing the gingival margins and enabling heated composite resin to completely envelop the tooth with an impressively durable, solid, pearlescent shell of composite. Monolithic, solid shell with mylar finish eliminates all of the inherent weaknesses of hand-layered, free-form, or indirect, putty matrix techniques.