Endodontic Burs for Dentists
Dentists performing endodontic procedures in their clinic definitely need to equip themselves with the right kind of endodontic burs. The endodontic burs which allows for better access to the pulp chamber are the first instrument which is used during any endodontic procedure. There are various kinds of burs which have been specifically designed for endodontic procedures. They come as single endodontic access burs, endodontic bur kit or endodontic specialty burs and are also used for properly shaping the opening for improved visibility and access to the canals. A good quality endodontic bur would surely lead to a smoother procedure and enhanced outcome.
There are several different kinds of burs required for a root canal – the safe tipped endodontic access burs, long shanked round bar, Gates Glidden bur, swan necked bur etc. High speed burs are preferable instruments for cutting and shaping the access cavity. The initial penetration of the roof of the pulp chamber should ideally be done with a tungsten carbide or diamond tapered fissure bur. A tapered safe end tungsten carbide or diamond bur can be used to remove the roof of the pulp chamber.
While locating a sclerosed canal one needs to make use of small round burs. The length of these burs is too small but one can easily get longer shank burs. Specialty burs with ultrasonic tips can be used in the identification of canal orifices, shaping of canal orifices and removal of secondary dentine. The availability of a variety of fittings to the different piezo-electronic machines has led to the widespread use of ultrasonic tips. One needs to closely follow the manufacturer’s instruction so as to make them last long and protect the delicate diamond tips. Ideally they should be used in a low power setting and one needs to make sure that they are in touch with the dentine prior to the activation of the piezo-electric unit.
The use of rotary cutting instrument in a regular hand piece is always discouraged since it might perforate the root canal or lead to fracture of the instrument. However the Gates=Glidden bur can be used for this purpose since it comes with a safe ended tip. Previously the Gates-Glidden burs were used for initial flaring of the coronal portion. However this task can be better achieved with the help of a nickel titanium orifice shaper. The Gates-Glidden burs which come in 6 different sizes are also used to eliminate the gutta-percha from the canal and to create post space.
Dentists performing endodontic procedures have their preferred set of endodontic burs which they use for every access procedure. However, just 3-4 rotary cutting burs are generally needed to make an optimal access cavity and mostly the dentists agree on a core set of burs. Ideally an endodontic access kit should come with the following- diamond round burs, transmetal bur, carbide round burs, tapered diamond bur, Gates-Glidden burs. A comprehensive endodontic access kit offers a selection of burs which would help to initiate, expand and finish any access preparation.