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This Concept Map, created with IHMC CmapTools, has information related to: Dynna PART 2-PONTIC CLASSIFICATION, Metal-ceramic pontics Requirements Sharp angles must be avoided, Based Metal Alloys advantages Higher hardness, No Mucosal Contact ???? Sanitary, Spheroidal aka Dome-shaped, Based Metal Alloys surface casting Rougher, Ovate in terms of Ridge contact, cleaning devices passed under the pontic how seesawed in a shoeshine manner, Ridge Contact must extend no farther lingually, Metal-ceramic pontics Advantages stronger because porcelain is bonded to the metal substrate rather than cemented to it., Advantages makes it easy for patients to remove debris, Based Metal Alloys must resist thermally induced stress, posterior mandible reason least "tooth-like" design, Sanitary materials all-metal, Aluminous porcelain pontic can be used in cases wherein the retainer has partial coverage, with a porcelain veneer, it is the most commonly used pontic design in the esthetic zone, for both maxillary and mandibular fixed partial dentures, Spheroidal used in areas where the occlusal of the buccal surface is seen, the mucosa stay healthy than under ridge-lap pontics, cemented to a cast metal framework and its retention, adiitional room occlusogingivally for enhancement of the solder joint, the contour of the tissue-contacting area of the pontic should be convex, whenever possible even if a small amount of soft tissue on the ridge must be surgically removed to facilitate it.