| 摘要 |
A cleaning instrument for removing plaque and calculus deposits from the titanium anchor cylinders of tissue integrated dental prostheses is disclosed. The instrument, molded from hard plastic, such as polypropylene or glass reinforced nylon, has an elongated handle and a substantially crescent-shaped scraper body disposed at one end of the handle. The scraper body defines an interior opening which is of the same internal diameter as the external diameter of the titanium anchor cylinders to be cleaned. Interior walls of the crescent-shaped scraper have teeth or ridges to provide a scraping or cutting action for the calculus deposits. The crescent-shaped body extends more than one-half of the corresponding circle. Therefore, in order to place the scraper on the titanium cylinder the jaws of the scraper must be slightly spread apart and thereafter the scraper body snaps onto and is removably held on the titanium cylinders. Back and forth rocking action of the instrument then provides good cleaning action of the cylinders.
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