Abstract: There is shown a simple paralleling tool or gauge which provides means for the dentist to examine and compare a spacing or arrangement of a patient's teeth with the desired spacing or offset as determined by the dentist and/or assistant. The tool has two blade members which are movable longitudinally with regard to each other along a rivet retainer. End members at right angles to the blade members are pivotally retained at the ends of the blade members. These end members are swung to the desired position to provide the gauge and/or reading and record.