Creating esthetic composite restorations: Part II, Crown fabrication.
The purpose of the article is to describe a fabrication technique to assist dental technicians to create an esthetic, indirect, high strength composite crown with fiber reinforcement. After the teeth have been prepared and the models completed the technician can begin the fabrication process. A fiber coping is fabricated on a separate transfer die. Translucent dentin is selected to reduce opacity and enhance the blend with the remaining dentition. High chroma dentin modifiers can then be place into the fossa, cervical, and interproximal areas to replicate dentin seen in natural dentition. Different incisal materials can then be layered into the build-up to regulate the value of the restoration. Special effects such as hypocalcification are placed internally to mimic naturally occurring esthetics. Realistic anatomy is created using a small tipped instrument directly into the final layer of uncured translucent blue enamel material. Fissure characterization is placed in the restoration to match existing dentition. Fit and margins are verified on separate dies to minimize discrepancies. Path of insertion and proximal contacts are established on a solid model to minimize chairside adjustments.
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Pacific Aesthetic Continuum (PAC-Live) University of the Pacific, San Francisco, CA, USA. DGRIN913696452
D003116:Color; D003188:Composite Resins / Q000737:chemistry; D003442:Crowns; D003743:Dental Enamel / Q000033:anatomy & histology; D003761:Dental Impression Technique; D003775:Dental Polishing; D017267:Dental Prosthesis Design; D003804:Dentin / Q000033:anatomy & histology; D004955:Esthetics, Dental; D005899:Glass Ionomer Cements / Q000737:chemistry; D006801:Humans; D003765:Models, Dental; D012823:Silicate Cement / Q000737:chemistry; D013499:Surface Properties; D019231:Tooth Preparation, Prosthodontic
D003188:Composite Resins; D005899:Glass Ionomer Cements; C111282:dental polyglass; D012823:Silicate Cement