this description of the exemplary embodiments is intended to be read in connection with the accompanying drawings , which are to be considered part of the entire written description . in the description , relative terms such as “ lower ,” “ upper ,” “ horizontal ,”“ vertical ,”, “ above ,” “ below ,” “ up ,” “ down ,” “ top ” and “ bottom ” as well as derivative thereof ( e . g ., “ horizontally ,” “ downwardly ,” “ upwardly ,” etc .) should be construed to refer to the orientation as then described or as shown in the drawing under discussion . these relative terms are for convenience of description and do not require that the apparatus be constructed or operated in a particular orientation . terms concerning attachments , coupling and the like , such as “ connected ” and “ interconnected ,” refer to a relationship wherein structures are secured or attached to one another either directly or indirectly through intervening structures , as well as both movable or rigid attachments or relationships , unless expressly described otherwise . reference will now be made in detail to the presently preferred embodiments of the invention , examples of which are illustrated in the accompanying drawings , wherein like reference numerals refer to like elements throughout . fig1 is a perspective view of a double - ended area - specific dental instrument 100 , according to an embodiment . the double - ended area - specific dental instrument 100 , as depicted in fig1 , can be comprised of an elongated handle 101 . the cross - sectional shape of this handle can be cylindrical , triangular , octagonal or any other shape suitable to sufficiently control the double - ended area - specific dental instrument 100 . the instrument 100 is depicted in fig1 as having a cylindrical cross - sectional shape with grooves 112 carved into its surface to facilitate gripping . the double - ended area - specific dental instrument 100 , as depicted in fig1 , can be composed of stainless steel , titanium , plastic , or any other suitable material known to those of average skill in the relevant art , or a combination of such materials . the double - ended area - specific dental instrument 100 can comprise a working end at only one end of the handle 101 , however , the preferred embodiment , as shown in fig1 , comprises a first working end 113 on one end of the handle 101 and a second working end 114 on the other end , which is the mirror image of the first working end 113 . this configuration allows the user to clean both sides of a particular tooth ( not pictured ) without changing instruments . each working end 113 and 114 comprises a shaft 102 , which can be connected to one end of the handle 101 . the shaft 102 can taper from its thickest width at the point where it connects to the handle 101 to its thinnest where it meets the arcuate , s - shaped shank 103 , which itself , is connected to an arcuate blade 104 at its opposite end . fig2 a is an enlarged perspective view of the working end 210 of an area - specific dental instrument , in a vertical position , displaying a shaft 202 , an arcuate , s - shaped shank and an arcuate blade 204 with the point of the blade 204 facing forward , according to an embodiment . from this viewpoint , the arcuate blade 204 can easily be viewed . in this embodiment the arcuate blade angles slightly downward from the end of the shank . this angle allows the user to hold the instrument at an angle and still maximize the arcuate blade &# 39 ; s 204 &# 39 ; s contact with the tooth surface being cleaned ( not pictured ). this figure displays the arcuate blade 204 pointing out toward the viewer . fig2 b is an enlarged perspective view of the working end 210 of an area - specific dental instrument , as displayed in fig2 a , which has been rotated counter - clockwise ninety ( 90 ) degrees , according to an embodiment . this viewpoint displays the arcuate , s - shaped shank 203 of an area - specific dental instrument , according to an embodiment . this shank can allow the user to access areas on the surface of teeth which are not easily accessible . for example , the long , narrow , lower portion of the arcuate , s - shaped shank 203 can be used to position the arcuate blade 204 between the teeth to clean the surface areas of these teeth including the cemento - enamel junction . fig2 c is an enlarged perspective view of the working end 210 of an area - specific dental instrument , as displayed in fig2 a , which has been rotated counter - clockwise one hundred eighty ( 180 ) degrees , according to an embodiment . this viewpoint displays the same angle of the arcuate blade 204 as displayed in fig2 a , but from the reverse angle . fig2 d is an enlarged perspective view of the working end 201 of an area - specific dental instrument , as displayed in fig2 a , which has been rotated counter - clockwise two hundred seventy ( 270 ) degrees , according to an embodiment . this viewpoint displays the same angle of the arcuate blade 204 as displayed in fig2 b , but from the reverse angle . fig3 is an illustrational view of the present device being utilized to clean the concave surface between two molars at the cemento - enamel junction of a particular tooth 308 , according to an embodiment . this view displays how the arcuate , s - shaped shank 303 allows the present instrument can be utilized to access hard to reach surface areas of the tooth being cleaned 308 . fig4 is an enlarged perspective view of a working end of the area - specific dental instrument , according to an embodiment . this working end can be comprised of several parts connected together or formed from a single piece of material such as stainless steel or some other suitable material . this viewpoint displays the various parts of a working end of an area - specific dental instrument , according to an embodiment . the working end can be attached to the an elongated handle 401 . the working end can comprise a tapered shaft 402 , aligned with the central longitudinal axis of the elongated handle 401 . the arcuate , s - shaped shank 403 can comprise a large curve 406 , which can function to both position the arcuate blade 404 and provide clearance for the instrument to work around a particular tooth ( not pictured ). the arcuate , s - shaped shank 403 can also comprise a small curve 407 , which also helps to position the arcuate blade 404 and act as a platform for the blade 404 . fig5 is an enlarged perspective view of the tip of the present device displaying its blade and part of it shank , according to an embodiment . this viewpoint provides a close - up view of the arcuate blade 504 , which can be a small , quarter - round edge at the very tip of an arcuate , s - shaped shank 503 . this arcuate blade can have a convex cutting shape so as to maximize its contact with concave surfaces , which are often found on the surfaces of teeth , particularly the lingual surfaces of anterior teeth and the cemento - enamel junction . although the invention has been described in terms of exemplary embodiments , it is not limited thereto . rather , the appended claims should be construed broadly , to include other variants and embodiments of the invention , which may be made by those skilled in the art without departing from the scope and range of equivalents of the invention .
an area - specific dental instrument is provided , which comprises an arcuate s - shaped shank and an arcuate blade further comprising a sharpened convex surface . this instrument can be capable of cleaning plaque and calculus from the lingual surfaces of anterior teeth and concave surfaces between teeth at the cemento - enamel junction .