Dental burs are metal instruments used in dentistry to cut, polish, and grind dental surfaces or remove cavities.
According to the material of which they are composed and according to their shape and granulometry, drills can be categorized according to the type of rotary instrument through which the bur is to be used.
The rotary instruments with which they can be used are turbine, contra-angle, or handpiece, each with a different working speed. The turbine is the fastest and smallest, with which fillings or fillings are made, carved for ceramic restorations such as veneers or crowns.
The contra-angle is a larger piece with a low or medium working speed with which implant placement and dental polishing are generally carried out. The handpiece is used in surgical procedures such as wisdom teeth extraction surgery, also known as “wisdom teeth”.
Regarding the material of which they are composed, they can be tungsten carbide or diamond and depending on the needs of the treatment, the thickness of the grain used will be different. They are classified by colors or thicknesses ranging from 14 microns for the finest and up to 180 microns for the thickest.
What is carbide burs?
Carbide is the hardest material next to diamonds and will last longer than high-speed steel cutters.
Carbide burs (carbide burs) are small cutting tools used for cutting, drilling, grinding, shaping, and removing material in hard materials.
RA carbide burs are perhaps one of the most widely used tools in dental practice and are used in a wide range of treatments.
White arkansas stone burrs
After completing the restoration, obtaining a smooth and polished surface has been a priority in all dental restoration work and special attention with aesthetic materials based on polymers such as composite resins and glass ionomers, whether conventional or with aggregate. resin
White arkansas stone burrs are an abrasive instrument made from high-quality, fine-grained aluminum oxide, with a ceramic binder for an ultra-fine finish. Especially suitable for the fast and precise finishing of composites and ceramics. For turbine and contra-angle. Used to cut, polish the tooth surface and remove decayed tissue present
Endodontic instruments names
Among all the endodontic instruments names are the root canal preparation files. With the passage of time, its technological advances and new and better files are being designed to treat each clinical case with greater precision and comfort.
Depending on the clinical case that we treat, one instrumentation or another will be used; in addition to that, it also depends a lot on the methodology of the endodontist since some are more conservative than others. Even many endodontists alternate and combine manual files, as K files remain even more practical and necessary, with mechanized files being more expensive and fragile in the distal segments.
Type K files and reamers were developed at the turn of the century by Kerr Mfg. Co. They are made of carbon steel, or stainless steel wire passed through a three- or four-sided, tapered, pyramidal die. The die part is then twisted to form a series of spirals at the instrument’s operating end.
Type K files
Are manually actuated, with tight spirals, arranged so that cutting occurs both when pulling and pushing. They are used to enlarge root canals by cutting action or by abrasive action. Pre-curved small diameter K-files are also used for canal exploration, placing sealant cement (by turning the instrument counterclockwise), and filling techniques. The tactile sensation of an endodontic instrument “stuck” in the canal walls can be obtained by pinching an index finger between the thumb and middle finger of the opposite hand and then rotating the extended finger. Its cross-section is typically square.
k reamer endo files do not fracture unless they have a manufacturing defect or if the instrument is deformed or strained beyond its limit; that is, it rotates on its axis once its edges are engaged in the dentin. Once the device undergoes deformation, it will not work again but will continue to deform until its fracture. Therefore, a deformed instrument must be discarded. The temper of the instrument is not affected by the sterilization of glass beads, and contrary to a prevalent concept, few instruments become dull before becoming deformed.
The K files to date remain the workhorses of clinical endodontics; Mechanized systems were expected to replace manual K files in the short term. But to date, many endodontists alternate them with mechanized files, which are more expensive and fragile in the distal segments.