A hand-held dental tracking device, the device comprising: a handle (103, 303, 503, 703, 1303) sized and shaped to be comfortably grasped by a human user's hand, comprising a dental implement head (104, 304, 504, 704, 750, 850, 804, 1304) or an anchor for attachment of a dental implement head (104, 304, 504, 704, 750, 850, 804, 1304); characterized in that said device comprises: at least one imager (106, 306, 318, 319, 322, 406, 418, 422, 506, 518, 522, 806, 1106, 1118, 1122, 1306) located on said handle and having a field of view that when at least a portion of said dental implement head (104, 304, 504, 704, 750, 850, 804, 1304) is within said user's mouth, said FOV includes at least a portion of said user's body outside the oral cavity, the imager configured to acquire an image of said at least a portion of the user's body; and a processor connected to the imager and configured to: a. identify said at least a portion of said user's body in said image; b. determine, using at least said image, a position of said dental device with respect to said identified at least a portion of said user's body; c. determine a position of said portion of said dental device inside said user's oral cavity with respect to said at least a portion of said user's body portion. a handle (103, 303, 503, 703, 1303) sized and shaped to be comfortably grasped by a human user's hand, comprising a dental implement head (104, 304, 504, 704, 750, 850, 804, 1304) or an anchor for attachment of a dental implement head (104, 304, 504, 704, 750, 850, 804, 1304); characterized in that said device comprises: at least one imager (106, 306, 318, 319, 322, 406, 418, 422, 506, 518, 522, 806, 1106, 1118, 1122, 1306) located on said handle and having a field of view that when at least a portion of said dental implement head (104, 304, 504, 704, 750, 850, 804, 1304) is within said user's mouth, said FOV includes at least a portion of said user's body outside the oral cavity, the imager configured to acquire an image of said at least a portion of the user's body; and a processor connected to the imager and configured to: a. identify said at least a portion of said user's body in said image; b. determine, using at least said image, a position of said dental device with respect to said identified at least a portion of said user's body; c. determine a position of said portion of said dental device inside said user's oral cavity with respect to said at least a portion of said user's body portion. at least one imager (106, 306, 318, 319, 322, 406, 418, 422, 506, 518, 522, 806, 1106, 1118, 1122, 1306) located on said handle and having a field of view that when at least a portion of said dental implement head (104, 304, 504, 704, 750, 850, 804, 1304) is within said user's mouth, said FOV includes at least a portion of said user's body outside the oral cavity, the imager configured to acquire an image of said at least a portion of the user's body; and a processor connected to the imager and configured to: a. identify said at least a portion of said user's body in said image; b. determine, using at least said image, a position of said dental device with respect to said identified at least a portion of said user's body; c. determine a position of said portion of said dental device inside said user's oral cavity with respect to said at least a portion of said user's body portion. a. identify said at least a portion of said user's body in said image; b. determine, using at least said image, a position of said dental device with respect to said identified at least a portion of said user's body; c. determine a position of said portion of said dental device inside said user's oral cavity with respect to said at least a portion of said user's body portion.