Diamond burs have long been the go-to tool for cutting away tooth enamel during dental restorative procedures. They are made from a diamond powder embedded in a metal matrix to provide longevity and consistent cutting quality. But a new type of diamond bur is gaining in popularity, one that does not use a metallic binder. These sintered diamond burs have a higher concentration of actual diamonds, providing greater durability and cutting efficiency.

During the course of dental restorations, dentists use various burs to cut away a tooth surface or create an inlay or onlay. Many of these burs, like a traditional carbide dental bur, use tungsten carbide, a material that is 3 times stiffer than steel and can withstand high levels of friction without losing its sharpness. But a new bur on the market, called a sintered diamond bur, does not use tungsten carbide, but instead uses a mixture of sintered and electroplated diamonds. This has led to a significant increase in the speed and accuracy of these tools, allowing doctors to perform procedures with greater precision while also saving money for their patients and insurers.

The main goal of this study was to determine the changing frequency of sintered diamond burs after multiple usages on the surfaces of a human tooth. A total of 10 teeth were used for this purpose, each undergoing the same preparation process with a coded diamond bur. The teeth were then examined for changes in the surface topography using a profilometer (Time TR100; Phynix GmbH & Co, Koln, Germany). Surface roughness was also measured for each tooth. SEM and stereomicroscopic images were also analyzed for each tooth.

In a nutshell, the process for making a sintered diamond bur involves melting and cooling to form a solid, then grinding it into shape. This allows the diamond to be distributed throughout the bur in a more uniform way than is possible with a traditional carbide dental bur. The result is a tool with greater durability and superior cutting action than any other dental bur on the market.

Each Neosint sintered bullet diamond bur is constructed with a sintered diamond head mounted to a mandrel shank that fits a Foredom, Dremel or any other rotary tool with a 3/32 inch diameter collet. To extend the life of these burs, simply lubricate with clean water prior to and during each use. These premium sintered diamond burs are available in a variety of shapes, grits and sizes to fit all your gem carving and pre-forming needs. For maximum efficiency, we recommend limiting the number of times you reshape each bur during use. This will expose fresh diamond surfaces for better results and extend the overall lifespan of the tool.

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