| 摘要 |
An improved dental flossing apparatus comprising a handle and a removable yoke member. The handle comprises an elongated shank for gripping purposes and a head piece having a receiving means for receiving a removable yoke and threads on the outer surface of the head surrounding the receiving means. In the preferred embodiment, the receiving means is an opening having a spherical cavity for receiving a spherical ball and a tapered throat area. The handle further comprises a slidable and threaded collar which can be slid onto and screwed around the opening to tighten the removable yoke to the handle. The yoke comprises two arms for retaining a length of dental floss between them and a stem terminating in sphere for insertion into the receiving means. The sphere provides a universal orientation for the yoke since the sphere can be rotated to any desired spherical rotation relative to the handle. Once the sphere is placed inside the receiving means such as the spherical cavity, the collar can be slid onto the threads on the outer surface of the head of the handle and threaded into place so that the stem and sphere of the yoke are firmly and safely held in place.
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