| 摘要 |
A dental instrument (10) has an elongated shaft (16) and a user grip handle (26). A dental tool (12) extends from one end (18) of the shaft (16). A rotatable sleeve (14) is rotatably mounted to the shaft (16) and rotates relative to the shaft (16) and the dental tool (12). The rotatable sleeve (14) is mounted to the shaft (16) between the user grip handle (26) and the dental tool (12). During use of the dental instrument (10) the rotatable sleeve (14) contacts a portion of the patient's mouth and rotates as the dental instrument (10) is moved to provide greater comfort to the patient.
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