HAND OPERATIVE INSTRUMENTS  || NOMENCLATURE || DESIGN || FORMULA
Channel: DENTISTRY ’N MORE
Date: 2021-05-28

The hand instruments used in the dental operatory may be categorized as (1) cutting (excavators, chisels, and others) or (2) non-cutting (amalgam condensers, mirrors, explorers, probes).1 Excavators may be subdivided further into ordinary hatchets, hoes, angle formers, and spoons. Chisels are primarily used for cutting enamel and may be subdivided further into straight chisels, curved chisels, bin-angle chisels, enamel hatchets, and gingival margin trimmers. Other cutting instruments may be subdivided as knives, files, scalers, and carvers. In addition to the cutting instruments, a large group of noncutting instruments is also in use.

Design
Most hand instruments, regardless of use, are composed of three parts: handle, shank, and blade (Fig. 6-2). For many non-cutting instruments, the part corresponding to the blade is termed nib. The end of the nib, or working surface, is known as face. The blade or nib is the working end of the instrument and is connected to the handle by the shank. Some instruments have a blade on both ends of the handle and are known as double-ended instruments. The blades are of many designs and sizes, depending on their functions


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Disclaimer-All the content of the video(Including tables,graphs,pictures, statistics and the description about the topic taken from the reference textbooks available in the public domain(hard and softcopies).

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#bladedesign  #bladeangle #instrument