for attachment of a string or cord to effect retrieving if necessary as a matter of safety application_number US 29905094 A description in the practice of dentistry it is frequently necessary to maintain the contact area between adjacent teeth free to allow the insertion of dental floss or rubber dams frequently during a tooth restoration or other dental procedure the space between the adjacent teeth may tend to close due to any excess bonding agent cement amalgam or other dental material becoming entrapped therein therefore it is imperative that some means be provided whereby the dentist may remove such material from between adjacent teeth and or to provide a slight expansion of the contact area as may be required according to this invention a new and improved interproximal disk is provided by which the dentist can maintain the contact area between adjacent teeth referring to fig1 to 3 the illustrated interproximal disk 10 comprises a blade portion 11 and an integrally connected handle portion 12 the integral interproximal disk 10 is preferably formed from a relatively thin sheet of metallic material e g stainless steel having a thickness 34 t 34 ranging between 0 008 to 0 003 inches by stamping wherein the optimal thickness for most purposes is approximately 0 005 inches as shown the blade portion 11 is provided with an arcuate working or cutting edge 11a the radius r of the.