Dental apparatus and instruments, namely apparatus for measuring root canal length or locating an apex of the canal, dental electrodes for use in measurement of root canal, dental files, dental reamers, dental treatment systems consisting primarily of a monitor for dental use in displaying root canal length, location of canal apex, and positioning or performance of a dental tool; hand-held root canal expanding/probing instruments used in conjunction with a dental power-driven handpiece; denta...

Dental apparatus and instruments, namely apparatus for measuring root canal length or locating an apex of the canal, dental electrodes for use in measurement of root canal, dental files, dental reamers, dental treatment systems consisting primarily of a monitor for dental use in displaying root canal length, location of canal apex, and positioning or performance of a dental tool; hand-held root canal expanding/probing instruments used in conjunction with a dental power-driven handpiece; denta...