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Within the series of lectures for implant prosthetics, reviewed by the GBOI, all important aspects of implant prosthetics from anatomy and preprosthetics planning to the integrated implant superstructure are taught and verified. Dentists and dental technicians work closely together to assure that oral implantology and prosthetics manufacturing harmonize even more in the future. The GBOI curriculum has an excellent reputation because of the consensus conference of oral implantology. Hans-Peter Vögtle demonstrates in a two-part article the necessary steps for the manufacturing of the practical assignment.
Using Galvano components, it is possible to fabricate stress-free restorations. Casting related errors, such as the expansion of the investment material or rough cast surfaces can be eliminated here.
Application: Superstructures for Implant Prosthesis Telescopic and Implant Bar Galvano.
Case description and planning After years of wearing two prostheses with only insufficient comfort, it was the wish of the patient to receive a new open pallat prosthesis with low extension of the upper denture base, for both the Maxillary and Mandibular. For sufficient adhesion six implant posts were inserted into the upper region 12 to 14 and 22 to 24, and four implants in the lower region 43-33. This created the foundation for a smaller prosthesis, and we were able to eliminate the need for a large surface mucosa-carried denture. (Figs. 1 and 2 ).
Providing single-piece implant-supported screwretained restorations now requires only three prosthetic treatment sessions, as convincingly demonstrated by the following maxillary clinical case. The restoration consisted simply of an industrially milled framework plus cold-curing denture acrylic and denture teeth. The framework can also be interpreted as an extended bridge that already contains both the abutments and the superstructure. This treatment approach can be implemented in a manner that is efficient for both the laboratory and for the patient. Dentists, too, like this high-quality and conservative yet fast and economical approach because it brings implant treatments within practical reach to a greater number of patients.
Unfortunately for the elderly it is difficult to eat a healthy diet when poorly fit prosthetics hinder them from consuming certain food groups like fruits, vegetables or meat because of the discomfort and pain resulting from chewing. Properly designed prosthetics made of acrylic teeth are not only necessary for proper food intake but also important aesthetically at an advanced age. The design of artificial teeth is quite a challenge given the current state of knowledge. The challenge lies in matching them to their natural counterparts as closely as possible...
That today’s patients more than ever want fixed dental restorations is no secret. Especially in a toothless mandibular case, often the patient has problems to maintain a secure fitting prosthesis. As described in this article, with relatively little effort the problem can be helped using GALVANO telescopes on the Neoss implant system.
Again and again there are problems for patients wearing full dentures for it is not so easy to get along with the “third party”. The patients in question want to minimize efforts to find solutions that ensure a high level of security and regain the feeling that it is safe to smile and above all to be able to chew again without the danger that the appliance is moving uncontrollably.
The light cured wax system “Metacon” is based on the completely new and unique concept of converting wax into acrylic. The system includes “regular” modeling wax for crown and bridge techniques, implant and pressable ceramic cases (Metawax), as well as preformed wax patterns such as clasps, stipple sheets, retentions and bars (Metaform) for partial denture castings and combination cases without refractory model. The material is handled either just like conventional modelling wax (“hot” method), or it can be kneaded “cold”, as it offers perfect modelling consistency just slightly above room temperature. When the wax-up is finished, it is light cured in the one of the Metalight light curing units. This way the Metacon wax converts to acrylic, however maintaining the advantages of wax: it burns out cleanly and completely and does not expand in the ring.
As we step into the next decade of digital dentistry and CAD/CAM (Computer Assisted Design and Computer Assisted Milling) let’s reflect on the decade we left behind. For the last ten years labs and dentists have been assailed by new technologies full of exciting horizons and promises but realistically offering only limited products. Though it did not make sense, many companies asked dentists and technicians to invest thousands of dollars in systems before these products were even ready. Though many labs are interested in the cost saving aspect of dental CAD software, many are hesitant because they are not sure which system is worth investing in and are afraid of being limited to one brand or software that may have hidden limits or rules. Horror stories of complicated 130,000 dollar machines still being paid for and sitting unused on tables across labs frighten away investors.
Fortunately the good news is here for 2010
With the advent of impressionless custom abutments and well executed design and milling systems backing it up, dentistry can finally leave behind the never ending promises of the 2000’s. A number of exciting developments have created a very lucrative digital market and have finally opened it up to create buyers with more options.
Simplifying your dental life ... a wonderful idea in a world that seems to be getting more complicated all the time. Tight deadlines and financial constraints abound in the dental lab. Everyone seems to be discussing new materials (zirconia) and techniques (overpressing). And the new technologies (CAD/CAM) require unprecedented amounts of capital – while at the same time the dental lab is expected to be service-oriented and to make the most of its location advantage over providers of imported restorations. It must actively promote – sell! – its range of service and increase roductivity, defined as best quality of finished work at highest quantities per unit of time. The authors of this eport present the Metacon light-curing wax by Primotec, supposed to offer considerable time savings.
One tooth line instead of three: Same performance, lower inventory cost
Discussions about healthcare have a way of focusing almost exclusively on rising costs and associated problems. Yet, experiences have shown that restorations fabricated by pros in dental laboratories at a fair price generally continue to be in great demand. Most patients will opt for restorations in the upper-medium price range when presented with different options. Treatments commonly opted for as a result include combination restorations or telescoping bridges that include the use of denture teeth. The quality and economic aspects of a restoration will therefore greatly depend on the selection of an appropriate tooth line. This article discusses aspects to be considered in the selection process and reflects the experience by the author’s medium-sized laboratory with a staff of 12.
This article describes the manufacture of a screw retained implant prosthesis supported on a full passive implant composed of a cement retained chrome-cobalt alloy structure supported by screw retained implant stumps on the implant platform.
The IMPLA 3D Navigation System from SCHUTZ Dental Group, Inc is a tool for the production of high-class drilling templates with depth stop. The templates can be created using virtually any implant system on the market and can be produced in your own laboratory. The complete system consists of the IMPLA 3D planning software, laptop, IPS (Implant Positioning System) and consumables. The software can also be purchased individually.
Accurate 3D planning requires the production of an X-Ray template, CT or Cone Beam X-Ray with this template correctly in place, and a surgical guide produced from the information provided by the CT Scan and the planning done in the 3D software. Steps 1-4 discuss the creation of an X-Ray template.
This article discusses the use of a precision milled titanium substructure and individually cemented zirconia crowns to successfully rehabilitate an edentulous maxilla. The patient had extreme resorbtion that necessitated both hard and soft tissue simulation. The use of ceramic intended for titanium, as well as high strength zirconia allowed for a successful rehabilitation.