A rotary instrument is an instrument that enables dental health professionals to remove or reduce tooth matter and dental materials and to shape teeth during various procedures.
What are the 3 parts of a rotary instrument?
Three basic parts to a rotary instrument:
- Shank: Portion that fits into the handpiece.
- Neck: Portion of the rotary instrument that connects the shank and the head.
- Head: The cutting, polishing, or finishing portion.
What is a rotary scaler?
After blasting antraquip hydraulic cutters, also referred to as rotary scalers or drum cutters, are able to efficiently remove the loose rock on the ribs, face and back (roof) to create a safe environment for continued production.
What are rotary files used for?
A nickel titanium rotary file is an engine-driven tapered and pointed endodontic instrument made of nickel titanium alloy with cutting edges used to mechanically shape and prepare the root canals during endodontic therapy or to remove the root canal obturating material while performing retreatment.
What is the most efficient rotary cutting instrument?
Conclusions: The tested carbide bur showed greater cutting efficiency than the tested diamond rotary cutting instruments when used with the electric handpiece. The electric handpiece showed a higher cutting efficiency than the turbine, especially when used with the carbide bur, probably due to its greater torque.
What is bevel in dentistry?
Definition of Bevel: “Any abrupt incline between the 2 surfaces of a prepared tooth or between the cavity wall and the Cavo surface margins in the prepared cavity” Bevels are the variations which are created during tooth preparation or cavity preparation to help in increased retention and to prevent marginal leakage.
What are periodontal instruments?
Periodontal instruments are designed for specific purposes, such as removing calculus, planing root surfaces, curetting the gingival wall or removing diseased tissue.
What instruments are used for teeth scaling?
The most commonly used scaler in veterinary dentistry is the sickle scaler, which can be either curved or straight and in cross section has a blade that is triangular in shape. Some other types of scalers available are hoes, chisels and files.
What term is applied to all rotary instruments that have a sharp cutting head?
What term applies to all rotary instruments that have a sharp cutting head? Bur. List the uses of burs in restorative dentistry procedures.
What are endodontic instruments?
Endodontic instruments are used within the tooth pulp chamber and root canal systems. An understanding of the armamentarium of endodontic instrumentation is necessary in the selection of, and proper use of, these instruments.
What is D2 in endodontic file?
Endodontic files manufactured after 1959 were defined by the diameter of the file at a point approximately 1 mm from the tip (D1) as shown in FIG. … A point 15 mm from D1 is designated D2 as shown in FIG. 1. At D2, the diameter of each file is 0.30 mm greater than the diameter of the file at D1.
What are C files in endodontics?
These files have a high resistance to twisting, much higher than conventional files, and facilitate the location of canal orifices and easy access to the apical third. … Depth gauge (marked on the instrument).
What does Abfraction mean?
An abfraction is a condition in which small notches, or lesions, develop near the gum line. These notches are often angular, however, they may become rounded over time as a result of abrasively brushing the teeth.
What is excavator in dentistry?
Dental Excavator is a specialized instrument designed to remove carious dentin from the tooth surface. It is ideal for preventing tooth decay among small animals. This double-ended instrument has an angled working-end that aid in accessing the problematic parts of the mouth cavity.
What is dental hatchet?
Description: It is a bibeveled or single beveled cutting dental hand instrument having its cutting edge in line with the axis of its blade. It is used for breaking down tooth structure undermined by caries, smoothing cavity walls, removing unsupported enamel, and sharpening line and point angles.