A dual-ended triple tooled dental applicator apparatus, comprising a plurality of tools with interchangeable dental tool applicators. The dental apparatus further comprises an elongated handle having two distinct tools on both ends and being detachable and interchangeable. During procedures, the dentist can alternate between both ends of the apparatus and among three dental tool applicators. A set of overlapping and circumferential friction enhancement means, along and about the apparatus, facilitate safe and effective handling during procedures. The multi-functioned dental apparatus is comprised of a lightweight but rigid materials (e.g., plastic), which allows the dentist to efficiently use the same tool for working with and applying different materials to a patient's teeth. Upon completion of a given procedure, the entire device may be readily disposable.

A dual-ended triple tooled dental applicator apparatus, comprising a plurality of tools with interchangeable dental tool applicators. The dental apparatus further comprises an elongated handle having two distinct tools on both ends and being detachable and interchangeable. During procedures, the dentist can alternate between both ends of the apparatus and among three dental tool applicators. A set of overlapping and circumferential friction enhancement means, along and about the apparatus, facilitate safe and effective handling during procedures. The multi-functioned dental apparatus is comprised of a lightweight but rigid materials (e.g., plastic), which allows the dentist to efficiently use the same tool for working with and applying different materials to a patient's teeth. Upon completion of a given procedure, the entire device may be readily disposable.

A set of osteotomes have conical tips with free end diameters alternately increasing by a constant increment, k, as a step function, beginning with the first osteotome; and working base diameters alternately increases by a constant increment, C, as a step function, beginning with the second osteotome. For seven osteotomes, the first and second diameters respectively are: 1 mm and 2 mm; 1 mm and 3 mm; 2 mm and 3 mm; 2 mm and 4 mm; 3 mm and 4 mm; 3 mm and 5 mm; and 4 mm and 5 mm. In a first mode all seven osteotomes are used to provide very gradual diameter escalations. In a second mode the first, third, fifth, and seventh osteotomes provide conventional Summers' diameter escalations. In third and fourth modes the first, fourth, and seventh osteotomes, and the second, fifth, and seventh osteotomes respectively provide increasingly more aggressive Summers' type escalations.

A set of osteotomes have conical tips with free end diameters alternately increasing by a constant increment, k, as a step function, beginning with the first osteotome; and working base diameters alternately increases by a constant increment, C, as a step function, beginning with the second osteotome. For seven osteotomes, the first and second diameters respectively are: 1 mm and 2 mm; 1 mm and 3 mm; 2 mm and 3 mm; 2 mm and 4 mm; 3 mm and 4 mm; 3 mm and 5 mm; and 4 mm and 5 mm. In a first mode all seven osteotomes are used to provide very gradual diameter escalations. In a second mode the first, third, fifth, and seventh osteotomes provide conventional Summers' diameter escalations. In third and fourth modes the first, fourth, and seventh osteotomes, and the second, fifth, and seventh osteotomes respectively provide increasingly more aggressive Summers' type escalations.

The invention relates to a handpiece (100) for a medical or cosmetic processing device, having:a connection line (102) at a connection end (101); anda housing (104) in which a receiving area is provided between the connection end (101) and the processing end (103), a rotary drive unit being receivable in said receiving area in order to drive a rotary tool (210) which can be attached to the processing end (103). The invention is characterized in that the handpiece (100) can be separated from the connection end (101), wherein the handpiece (100) is designed such that the motor (110) remains on the connection end (101) after uncoupling the housing (104), and the handpiece has a rotary clamping device (120) in which the rotary tool (210) can be attached.

A dental pipette. The dental pipette includes a container having a chamber configured to receive and retain fluids therein. A nozzle positioned at one end of the container is in fluid communication with the chamber via a conduit. A plurality of apertures disposed on the nozzle enable fluids within the chamber to be dispensed from the nozzle. A plurality of bristles extend radially outwardly from the nozzle and taper in length from one end of the nozzle to a second end of the nozzle forming a cone-like construction. The apertures and bristles are positioned at intervals and assist with the cleaning of teeth, gums, and the like. A hollow, beveled tip disposed at one end of the nozzle facilitates easy insertion under the gum line and in between teeth. Usage of the dental pipette provides protection from gum infection, bone loss, and tooth loss.

A device for use in retracting a gingiva from a human tooth by widening a gingival sulcus with a dental composition. The device comprises a cannula with a free end having an opening for dispensing the dental composition. The free end is shaped to be inserted with its front in the entry of the gingival sulcus, and to laterally displace the gingiva from the tooth as the cannula is moved in the gingival sulcus. The invention may help to achieve a reliable and cost effective gingival retraction treatment.

The dental handpiece of a center-injection type has a bur sleeve (8, 9) having an axial through hole capable of receiving and detachably holding therein a cutting bur having an axial through hole, upper and lower bearings (10, 11) for rotatably supporting the bur sleeve (8, 9), and an injection nozzle (5) capable of being inserted into the axial through hole of the cutting bur from its proximal end for injecting cooling water through the other end. The dental handpiece (1) further has an upper seal means (17) arranged to seal the space between the upper region of the bur sleeve (8, 9) and the upper bearing (10), and a lower seal means (179 arranged to seal the space between the lower region of the bur sleeve (8, 9) and the lower bearing (11).

A method for monitoring a failure of an endodontic instrument used during an endodontic treatment during which the instrument is driven by a handpiece and generates a set of acoustic emission signals, remarkable in that the method includes the steps of: sensing and analysing all of the acoustic emission signals generated by use of the instrument; and when a failure of the instrument occurs, thus generating a failure acoustic emission signal, detecting the failure acoustic emission signal amongst the set of acoustic emission signals in order to detect the occurrence of the failure.

A method for monitoring a failure of an endodontic instrument used during an endodontic treatment during which the instrument is driven by a handpiece and generates a set of acoustic emission signals, remarkable in that the method includes the steps of: sensing and analysing all of the acoustic emission signals generated by use of the instrument; and when a failure of the instrument occurs, thus generating a failure acoustic emission signal, detecting the failure acoustic emission signal amongst the set of acoustic emission signals in order to detect the occurrence of the failure.