. Elementary and dental radiography / by Howard Riley Raper . es 454, 455 and 456. Dr. Edmund Kells, Jr., offers a scheme for markingmarking negatives. small film negatives for identification by punching a small hole in the negative with a plate punch andtying a string, with a small price-tag-like label on it, to the negativewhich will certainly eliminate the possibility of mixing negatives bygetting the negatives from one patients envelope into another patientsenvelope. READING A\ IDIOCRAPHS 407 I would earnestly advise that some sort of filing boxf 0J8 Boxe$ °r or caJmet ^e USC( by a^ wn0 us
. Elementary and dental radiography / by Howard Riley Raper . es 454, 455 and 456. Dr. Edmund Kells, Jr., offers a scheme for markingmarking negatives. small film negatives for identification by punching a small hole in the negative with a plate punch andtying a string, with a small price-tag-like label on it, to the negativewhich will certainly eliminate the possibility of mixing negatives bygetting the negatives from one patients envelope into another patientsenvelope. READING A\ IDIOCRAPHS 407 I would earnestly advise that some sort of filing boxf 0J8 Boxe$ °r or caJmet ^e USC( by a^ wn0 use negatives will be lost or so chaotically dis-tributed about the office that they can never be found when needed. Dr. OttoknguisHew Uloras. While it is true, in a general, inaccurate way, thatX-rays penetrate substances inversely in proportionto their density, it is rather a loose way of stating theaction of the rays. Dr. Ottolengui has accordingly coined the followingwords: Radioparent and radioparency, radiolucent and radiolucency,. Fig. 4~<0. Special dental illuminating device for displaying and observing dental X-ray negatives. radiopaque and radiopacity from the words transparent and trans-parency, translucent and translucency, opaque and opacity. Thus wemight speak of a shadow in a radiograph something like this: Thesmall radiopaque area is, I believe, a piece of tooth root. Or insteadof referring to a rarefied area at the apex of a tooth we would say: There is a radioparent or a radiolucent (depending on the degree ofX-ray penetration) area at the end of such and such a seems to me these words will prove to be most useful. 4o8 APPENDIX
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