Sintered diamond burs are a priority investment for professional gem carvers as they last about 10 times longer than coated diamond burs. They are made from a mix of high-quality diamond grit and metal bonding. They are a great option for shaping, grinding and carving glass, stone and some hard woods. These point-shaped sintered diamond burs feature precisely graded diamonds embedded in a metal matrix throughout the entire head to ensure consistent performance over a long lifetime.
Unlike electroplated diamond, which wears off the cutting surface over time, sintered diamond is permanently fused to the carbide substrate. This results in a much more durable and harder cutting tool. This makes sintered diamond a more efficient and cost-effective choice for grinding, polishing, sanding, etching and other precision cutting applications in the laboratory.
The tungsten carbide coating on each sintered diamond particle is extremely strong and will hold its shape well over time, even when used at high speeds. These high-performance diamond burs are also able to cut through the toughest materials, such as zirconia and cobalt chrome, without damaging the handpiece or creating excessive heat. These diamond burs are available in a wide range of shapes and sizes to suit various applications.
In addition to their excellent cutting efficiency, sintered diamonds have a number of other benefits over traditional diamond burs. For example, they are less expensive, and produce far less dust than conventional diamond burs. This reduces the amount of cleanup required and helps to maintain a cleaner work environment in the laboratory. In addition, since sintered diamond burs require less pressure to operate than coated or electroplated tools, they can extend the life of the handpiece by reducing the strain on the motor.
Although CVD-coated diamonds have been proven to be machinable on zirconia and cobalt chrome, it is not known how they will perform with other types of material such as stainless steel or metal alloys. The purpose of this study is to evaluate the machinability of these helically bladed dental burs on both a zirconia and a metal alloy specimen, at a rotational speed similar to that of modern high-speed air rotor handpieces.
Using this information, future research can be focused on the comparison of the machining ability of CVD-coated diamonds with those of uncoated dental burs in a variety of different materials. It is also necessary to perform a more comprehensive evaluation of the effect of different brands and types of zirconia and metal alloys on the machinability of CVD-coated diamond tools. This would be a significant step toward determining which burs should be recommended for use on each type of zirconia or metal alloy, and which should be reserved for experimental work only. The results of this study could have a profound impact on the way in which prosthetic prepartions are performed. This could lead to shorter overall patient treatment time under anesthesia and reduced costs for the dental industry as a whole. This could also help to alleviate the concerns of many patients about the length of time spent under anesthesia for dental procedures.