Fabrication of implant overdentures that are passive and biocompatible.
Passive-fitting mesostructures and superstructures are required to be superimposed on osseointegrated endosseous implants. The tightening of an inaccurate framework to the abutments will transmit stresses to the bone-implant interface. Precision, until now, has been inconsistent and unpredictable with conventional methods of casting, soldering, and welding techniques. By machining the framework with the Spark Erosion method using electrodischarge machining, a substantial improvement in the passive seat of the prosthetic elements is achieved. Chemical reactions caused by galvanic corrosion are also important factors in the precise approach to the treatment planning of implant-supported prostheses. The application of a pure 11.8% grade 1 titanium casting system allows the restorative team to fabricate porcelain-fused-to-metal crowns and bridges, conventional fixed-removable restorations and implant prostheses in pure titanium within completely biocompatible parameters that are absolutely mercury free. This article explains why the spark erosion machining and the unique titanium casting system have a significant impact on today's implant dentistry.
Renner
A M
AM
RCK Dental Laboratory, Inc., 1622 Donna Road, West Palm Beach, FL 33409, USA.
D001672:Biocompatible Materials / Q000737:chemistry; D003343:Corrosion; D000044:Dental Abutments; D003735:Dental Casting Technique / Q000295:instrumentation; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D012994:Dental Soldering; D003779:Denture Design; D003781:Denture Retention; D003828:Denture, Overlay; D004563:Electrochemistry; D004570:Electrogalvanism, Intraoral; D006801:Humans; D008297:Male; D016876:Metal Ceramic Alloys / Q000737:chemistry; D008875:Middle Aged; D010347:Patient Care Planning; D013314:Stress, Mechanical; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry
D001672:Biocompatible Materials; D015921:Dental Implants; D016876:Metal Ceramic Alloys; D014025:Titanium