A curette is a surgical instrument designed for scraping or debriding biological tissue or debris in a biopsy, excision, or cleaning procedure. In form, the curette is a small hand tool, often similar in shape to a stylus; at the tip of the curette is a small scoop, hook, or gouge.The verb to curette means to scrape with a curette, and curettage (/ˌkʊərɨˈtɑːʒ/ or /ˌkjʊərɨˈtɑːʒ/) is treatment that involves such scraping.Some examples of medical use of a curette include: 1  the removal of impacted ear wax. 2  dilation and curettage of the uterus, a gynecologic procedure.3  excision of the adenoids (adenoidectomy) by an otolaryngologist. 4  to scrape tartar deposits from tooth enamel with a periodontal curette.ome examples of medical use of a curette include: 1  the removal of impacted ear wax. 2  dilation and curettage of the uterus, a gynecologic procedure. 3  excision of the adenoids (adenoidectomy) by an otolaryngologist. 4  to scrape tartar deposits from tooth enamel with a periodontal curette.