A very active case of external-internal root resorption.
Abstract A case of external-internal root resorption which may have been stimulated to a very active phase by bacterial contamination is presented.
External-internal progressive resorption and its nonsurgical correction.
The pathologic resorptive entity of external-internal progressive resorption is distinct from external or internal resorption. External-internal progressive resorption is redefined and described. More facile and more predictable treatment modalities are possible based on this redefinition and description.
Parameters for low energy operation of CESR
We present a detailed design for operation of the Cornell Electron Storage Ring, CESR, in the energy range covering the /spl psi/ resonances and the Charm and Tau thresholds, as well as reaching to the upper Y resonances near 11 GeV. The addition of 18 m of super-ferric wiggler magnets will partially restore low energy beam emittance and damping times. Installation of superconducting quadrupoles in the interaction region and the addition of high performance superconducting RF cavities will enhance performance at all energies. Studies of optics, beam dynamics, wiggler and vacuum system performance, beam stability, and beam-beam effects confirm operation with a luminosity of 3/spl times/ 10/sup 32/ CM/sup -2/ sec/sup -1/ at 1.88 GeV.