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BREDENT EQUIPMENT SUPPORT
Bredent Casting Technique
Bredent Casting Technique According to Sabath
“A dental technician’s manual for producing precise fitting, homogenous and biocompatible dental castings”
The Bredent Casting Technique (According to Sabath) is an instructional user manual with simplified, reliable scientific data and experience in the dental casting process. The main purpose of the book is to provide practical knowledge for the dental technician rather than scientific or metallurgical formulas and processes. It is 230 page book assembled in a loose-leaf, hard-backed, ring binder style with 6 chapters.
Book Table of Content
Ch. 1: Investment Compounds - composition of investments and application ranges, processing information, wax movement and thermal wax tension, pressure investing, comparison of ring flasks systems and investing.
Ch. 2: Preheating (Burn-Out) - Linear preheating, Kiln types and their effects on investment ring molds, rapid fire-preheating techniques and practice-related case studies about preheating and castings fit results.
Ch. 3: Casting - Materials, alloy melting (flame, induction, resistance, electric arc), comparison of casting methods and their results.
Ch. 4: Cast-Port supply (Sprueing) – Direct and indirect sprueing techniques and inflow of metal.
Ch. 5: Bredent Casting Technique According to Sabath.
Ch 6: Refractory model casting techniques - Choosing proper sprues and attaching pressure equalization channels.
Book Preface by Peter Brehm, CEO (Bredent Germany)
Dentistry at large, and in particular, if it is performed while assuming the responsibility of harming the patient as little as possible by the jointly determined, necessary therapeutic measures, always depends on an appropriately geared dental technology for its implementation.
For this reason, bredent aim for the goal to offer both dentist and dental technician a closed system, which conveys optimal security and trust in all materials for the patient. Comprehensive system solutions offer a symbiosis of matching materials and devices, which minimizes the expenditure of human labor and increase precision, so that any working process can be organized in a more efficient and economic way. For the dentist, it is important to know that the quality of his work depends directly on the quality his dental technician delivers. And the dental technician in turn depends on the excellent quality of the materials made available to him.
As the human being develops, he places higher and higher demands on the quality of life. Right from the start, he learned from natural circumstances, influenced and changed them. He recognized chemophysical processes and developed techniques, which enabled him to create materials that are not found at all in nature. And ever since the scanning electron microscope was invented, he is able to analyze and refine most of these chemophysical processes as well.
Active, scientific work - regardless of which type - is subject to a continuously repeating cycle. Acquired knowledge is utilized, advanced, realized and analyzed. Moreover, the positive symptoms resulting from this etiology should be integrable into the repetitive cycle. Solutions are developed to realize knowledge. And those who advance will also meet success.
The more often each cycle is passed, the more knowledge we accumulate by new cognitions. The very same applies to the Bredent Casting Technique (according to Sabath).
The many years of dealing with the matter - in theory as well as in practice - can be evaluated and realized. Therefore, this book will give you information of how the consistent refinement of numerous options can realize your strive for perfection in casting technology.
I hope this book will help all readers and users to meet their individually desired goals.
Sincerely yours,
Peter Brehm, CEO
Bredent Germany
Bredent Casting Technique according to Andreas Sabath
Casting is not an invention made in modern times, but human being adopted this technique from nature. A volcano, called fire spitting mountain in the early times, erupted magma and gasses from the depth of the earth. This liquid lava broke its way into the valley through flow channels. The lava surface solidified and incrusted, and thus created bizarre outlines and formations. Lava that had entered certain terrains molded these shapes, and that way human beings recognized early that materials could be set in moulds.
The outer walls of the lava cooled down and solidified. Flow ducts, which maintained the heat within their centre, developed, and enabled the lava to flow steadily and to cover great distances within these channels. And after the human being gained control of the fire and learned to take advantage of it for himself, the Bronze Age and the Iron Age had begun.
The human being had learned to liquefy materials by fire, cast them in moulds, or turn them into different shapes by heating them with fire. He learned from nature first, and later on, he gained from it.
The half-life of knowledge got shorter and shorter. With the use of energies and the transmission of forces, technologies were more and more refined. Once mankind started to commit the knowledge in their minds to paper, progression - in the sense of improvement and advancement - became unstoppable. New insights lead to ever-growing new developments. And thus, the cycle proceeds towards new knowledge and advances our development.
We can, however, occupy ourselves with all developments and learn from them. Thus, each of us is influenced by others, and influences others in turn. A Everything that made an impact on us in the past will turn up again in various ways. Active scientific involvement - regardless of the development or advancement of knowledge - is subject to a continuously repeating cycle.
- We start the cycle by using acquired knowledge.
- We refine the acquired knowledge mentally and search for options.
- We attempt to realize our thoughts and insights.
- We examine the results of our attempts and analyze them.
- We recognize symptoms, both positive and negative ones.
- We search for causes that explain the positive symptoms, so that our results will become reproducible, and for solutions to the negative symptoms through new ideas.
- We develop solutions to realize these ideas.
- We realize the ideas and thus acquire new knowledge, which we take into consideration again and start the cycle at point A anew.
Only those problems of this cycle, which were solved by gaining new knowledge and thus broadened our knowledge and our insights without breaking the continuous cycle of collecting scientific knowledge, advance us in our development.
We should not regard this development as a burden, but as a chance. Only those who continuously advance will benefit from this in their professional life and will enjoy their work.
Science is not about teaching the truth, but represents result and sum of what we do repeatedly. The more often we pass or go through the cycle, the more knowledge we gather by experience. The same applies to the Casting Technique according to Sabath. The many years of dealing with this subject, in theory and practice, from own experience and from the knowledge of others, are evaluated and processed here.
The subject of casting also includes the working processes for fabricating moulds and the auxiliary materials required for this, and the chemophysical processes during melting, casting and the resolidification of materials. Based on this experience, the following chapters describe the various casting methods and cast port systems as well as their functioning.
In the descriptions of the processing and casting techniques, we frequently encounter developments, which were incorporated based on scientific research.
This book is designed as a handbook for the dental technician. For this reason, any scientific or metallurgic aspects as well as any chemical formula were deliberately omitted. It is strictly focused on the essential aspects that must be available to the dental technician in order to produce reproducible, homogeneous, and patient-compatible results. These are the standards by which the quality of dental prostheses is measured.
Andreas Sabath
