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Calculus was a term used for various kinds of stones. This spun off many modern words, including calculate (' use stones for mathematical purposes '), and calculus, which came to be used, in the 18th century, for accidental or incidental mineral buildups in human and animal bodies, like kidney stones and minerals on teeth. [3]
Gracey curettes are especially ideal for subgingival calculus removal because the design of the instrument allows for better adaptation to the anatomy of the roots. [ 3 ] While the blade of the universal curette is situated perpendicular to the edge of the terminal shank, the blade of the Gracey curette is only offset by 70 degrees, giving the ...
An 11/12 type explorer is a double-ended dental assessment instrument with mirror image working-ends. [4] The 11/12 dental explorer should be considered a dental hygienists most important instrument for the detection of subgingival and supragingival calculus.
The composition of hand instruments is continuously evolving, which is why it may be a challenge to find the proper instrument for the right clinical situation. [3] With the broad variation of instrument designs and materials, it allows dental professionals to implement periodontal therapy with reduced strain and increased comfort levels for both the clinician and the patient. [3]
The TI-85 is a graphing calculator made by Texas Instruments based on the Zilog Z80 microprocessor.Designed in 1992 as TI's second graphing calculator (the first was the TI-81), it was replaced by the TI-86, which has also been discontinued.
The inner raceway of this roller bearing has been burnished by the bearing's rollers. Burnishing is the plastic deformation of a surface due to sliding contact with another object. It smooths the surface and makes it shinier. Burnishing may occur on any sliding surface if the contact stress locally exceeds the yield strength of the material.
The Construction and Principal Uses of Mathematical Instruments (French: Traité de la construction et des principaux usages des instrumens de mathématique) is a book by Nicholas Bion, first published in 1709. [1] It was translated into English in 1723 by Edmund Stone. [2] The book describes ways to construct mathematical instruments.
العربية; Asturianu; Azərbaycanca; تۆرکجه; বাংলা; 閩南語 / Bân-lâm-gú; Беларуская; Беларуская (тарашкевіца)