Methods of forming interproximal reduction guides are described herein. These interproximal reduction guides apparatuses may include a body that fits over the patient's dental arch and one or more guide slots formed in them configured to limit the motion of an interproximal reduction cutting tool in a defined manner.

Methods of forming interproximal reduction guides are described herein. These interproximal reduction guides apparatuses may include a body that fits over the patient's dental arch and one or more guide slots formed in them configured to limit the motion of an interproximal reduction cutting tool in a defined manner.

The invention relates to an automatic analyzer for organic elemental analysis, said analyzer comprising: lines for gaseous fluids, sample holders to be analyzed, a catalytic combustion reactor, a water adsorber, an organic compounds detector, and a logical unit for detection data processing, wherein the analyzer further comprises an automatic oxygen meter and the oxygen supply to the catalytic combustion reactor is managed by the data processing unit as a function of the stoichiometric requirement calculation and of the operating time of the oxygen meter.

The invention relates to an automatic analyzer for organic elemental analysis, said analyzer comprising: lines for gaseous fluids, sample holders to be analyzed, a catalytic combustion reactor, a water adsorber, an organic compounds detector, and a logical unit for detection data processing, wherein the analyzer further comprises an automatic oxygen meter and the oxygen supply to the catalytic combustion reactor is managed by the data processing unit as a function of the stoichiometric requirement calculation and of the operating time of the oxygen meter.

The A root canal treatment apparatus includes: a handpiece configured to hold a cutting tool in a head in a drivable manner; a motor driver and a micromotor configured to drive the cutting tool; a root canal length measurement circuit; and a control portion. The root canal length measurement circuit is configured to electrically detect a position of a tip end of the cutting tool in a root canal, using the cutting tool as a measuring electrode. The control portion is configured to perform drive for reversely rotating the cutting tool by a predetermined set angle (180 degrees) when the position of the tip end of the cutting tool detected by the root canal length measurement circuit reaches a predetermined set position, and then, stopping rotation.

The A root canal treatment apparatus includes: a handpiece configured to hold a cutting tool in a head in a drivable manner; a motor driver and a micromotor configured to drive the cutting tool; a root canal length measurement circuit; and a control portion. The root canal length measurement circuit is configured to electrically detect a position of a tip end of the cutting tool in a root canal, using the cutting tool as a measuring electrode. The control portion is configured to perform drive for reversely rotating the cutting tool by a predetermined set angle (180 degrees) when the position of the tip end of the cutting tool detected by the root canal length measurement circuit reaches a predetermined set position, and then, stopping rotation.

A snap-on snap-off drill stop device for boring into a tooth and or in bone. The stop device that impedes insertion of the bore device into the tooth or bone tissue beyond predetermined depths at pre-selected stages of a drilling process by simplifying the tedious process of exchanging drill bits and drill stops for the ultimate size and depth bore.

A snap-on snap-off drill stop device for boring into a tooth and or in bone. The stop device that impedes insertion of the bore device into the tooth or bone tissue beyond predetermined depths at pre-selected stages of a drilling process by simplifying the tedious process of exchanging drill bits and drill stops for the ultimate size and depth bore.

Devices and methods for guided endodontic micro-surgery using trephine burs. The device includes a surgical guide comprising a dentate guard and a port extending from the dentate guard. The dentate guard is configured to conform to dentition of a patient proximate to a surgical site. The port has a bore extending therethrough such that a distal end of the bore terminates at the surgical site. The port, and its bore, are configured to receive a trephine bur for the EMS procedure at the surgical site.

Devices and methods for guided endodontic micro-surgery using trephine burs. The device includes a surgical guide comprising a dentate guard and a port extending from the dentate guard. The dentate guard is configured to conform to dentition of a patient proximate to a surgical site. The port has a bore extending therethrough such that a distal end of the bore terminates at the surgical site. The port, and its bore, are configured to receive a trephine bur for the EMS procedure at the surgical site.