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This Concept Map, created with IHMC CmapTools, has information related to: Metal Coping Design 2nd copy, Lingual surface recommended size 3.0 mm, higher yield strength may be as thin as 0.2 mm, Maxillary Posterior Teeth design maintain occlusal contacts in metal, Design of the Facial Margin Further modification by halting metal extension, Fabrication involves either platinum foil matrix supporting the porcelain during firing, An outer junction of porcelain to metal that is at a right angle (90 degrees) to avoid subsequent fracture of the porcelain, Features to consider when designing the metal coping for a PFM restoration Thickness of the metal underlying and adjoining the porcelain, Thickness of the metal underlying and adjoining the porcelain may vary, Fabrication involves either refractory die supports the porcelain margin during firing, contoured so that the overlying veneer will be subject to compressive, Maxillary Posterior Teeth variants Complete coverage with porcelain of the occlusal surface of premolars and molars, axial wall in order to allow light trnansmission into the tooth rooth adjacent to the margin, Porcelain-Metal Junction Line is Placed 1.0 mm from occlusal contacts at the position of maximal intercuspation, Features to consider when designing the metal coping for a PFM restoration Extent of the area to be veneered for porcelain, Molars usual required design distal half can be unveneered, metal well away from Porcelain-Metal Junction Line, Occlusal Contacts placed on unveneered metal surfaces, Maxillary Posterior Teeth Advantage for recommended design more resistance to fracture, minimize destruction of tooth structure for facial shoulder, Maxillary Posterior Teeth design veneer the esthetically critical facial surfaces with porcelain