Dental Curette, Gracey, Standard, Autoclavable Silicone Handle, 2CLGR9-10 Dental Curette, Gracey, Standard, , Ergonomic and Autoclavable Silicone Handle Instrument, GR 9-10. For molars (facial and lingual surface). European Type. Curettes are used supragingivally and subgingivally on enamel and root surfaces.