title: The miniaturized x-ray machines in dentistry: structural integrity and safety of the extended-anode tubes.
abstract: Two different designs of the extended-anode x-ray tube were evaluated for structural stability and safety. Force-deflection curves were determined in bending and compression modes. Although the tubes experienced similar deflection characteristics, one demonstrated several design advantages. Both machines were judged adequately safe during reversed-geometry film exposures, based on the ability of the rod anode x-ray tube to rotate in its suspension arm.
mesh_terms: D000535:Aluminum; D003748:Dental Equipment; D005069:Evaluation Studies as Topic; D005898:Glass; D008904:Miniaturization; D010969:Plastics; D011861:Radiography, Dental / Q000295:instrumentation*; D013314:Stress, Mechanical
chemical_list: D010969:Plastics; D000535:Aluminum