For mesial surface on rear teet For the removal of sub-gingival calculus and for the root cleaning. Gracey curettes are the most popular and common, less traumatic than the Universal type. They are site specific as they are designed and assorted to adapt to the specific area or tooth surface to be treated. The blade of the Gracey curette is off set from the terminal shank at 70° and sharped only in one side. 11-12 Mesial surfaces, molars and premolars. Stainless steel handle diameter 8 mm. The Short type curette has the same shape as a Long type Gracey except for the cutting end which is shorter to allow easier sub-gingival operation, even in case of deep narrow pockets.